import fs from "node:fs/promises";
import path from "node:path";
import { execFile as execFileCallback } from "node:child_process";
import { promisify } from "node:util";
import { randomUUID } from "node:crypto";
import { and, asc, desc, eq, getTableColumns, gt, inArray, isNull, lte, notInArray, or, sql } from "drizzle-orm";
import type { Db } from "@paperclipai/db";
import {
  AGENT_DEFAULT_MAX_CONCURRENT_RUNS,
  ISSUE_CONTINUATION_SUMMARY_DOCUMENT_KEY,
  isEnvironmentDriverSupportedForAdapter,
  type BillingType,
  type EnvironmentLeaseStatus,
  type ExecutionWorkspace,
  type ExecutionWorkspaceConfig,
  type RunLivenessState,
} from "@paperclipai/shared";
import {
  ensureSshWorkspaceReady,
  findReachablePaperclipApiUrlOverSsh,
  type SshRemoteExecutionSpec,
} from "@paperclipai/adapter-utils/ssh";
import type { AdapterExecutionTarget } from "@paperclipai/adapter-utils/execution-target";
import {
  agents,
  agentRuntimeState,
  agentTaskSessions,
  agentWakeupRequests,
  activityLog,
  companySkills as companySkillsTable,
  documentRevisions,
  issueDocuments,
  heartbeatRunEvents,
  heartbeatRuns,
  issueComments,
  issueRelations,
  issues,
  issueWorkProducts,
  projects,
  projectWorkspaces,
  workspaceOperations,
} from "@paperclipai/db";
import { conflict, HttpError, notFound } from "../errors.js";
import { logger } from "../middleware/logger.js";
import { publishLiveEvent } from "./live-events.js";
import { getRunLogStore, type RunLogHandle } from "./run-log-store.js";
import { getServerAdapter, runningProcesses } from "../adapters/index.js";
import type { AdapterExecutionResult, AdapterInvocationMeta, AdapterSessionCodec, UsageSummary } from "../adapters/index.js";
import { createLocalAgentJwt } from "../agent-auth-jwt.js";
import { parseObject, asBoolean, asNumber, appendWithByteCap, MAX_EXCERPT_BYTES } from "../adapters/utils.js";
import { costService } from "./costs.js";
import { trackAgentFirstHeartbeat } from "@paperclipai/shared/telemetry";
import { getTelemetryClient } from "../telemetry.js";
import { companySkillService } from "./company-skills.js";
import { budgetService, type BudgetEnforcementScope } from "./budgets.js";
import { secretService } from "./secrets.js";
import { resolveDefaultAgentWorkspaceDir, resolveManagedProjectWorkspaceDir } from "../home-paths.js";
import {
  buildHeartbeatRunIssueComment,
  HEARTBEAT_RUN_RESULT_OUTPUT_MAX_CHARS,
  HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS,
  HEARTBEAT_RUN_SAFE_RESULT_JSON_MAX_BYTES,
  mergeHeartbeatRunResultJson,
} from "./heartbeat-run-summary.js";
import {
  buildHeartbeatRunStopMetadata,
  mergeHeartbeatRunStopMetadata,
} from "./heartbeat-stop-metadata.js";
import {
  classifyRunLiveness,
  type RunLivenessClassificationInput,
} from "./run-liveness.js";
import {
  classifyIssueGraphLiveness,
  type IssueLivenessFinding,
} from "./issue-liveness.js";
import { logActivity, publishPluginDomainEvent, type LogActivityInput } from "./activity-log.js";
import {
  buildWorkspaceReadyComment,
  cleanupExecutionWorkspaceArtifacts,
  ensureRuntimeServicesForRun,
  persistAdapterManagedRuntimeServices,
  realizeExecutionWorkspace,
  releaseRuntimeServicesForRun,
  type ExecutionWorkspaceInput,
  type RealizedExecutionWorkspace,
  sanitizeRuntimeServiceBaseEnv,
} from "./workspace-runtime.js";
import { issueService } from "./issues.js";
import {
  ISSUE_TREE_CONTROL_INTERACTION_WAKE_REASONS,
  issueTreeControlService,
} from "./issue-tree-control.js";
import {
  getIssueContinuationSummaryDocument,
  refreshIssueContinuationSummary,
} from "./issue-continuation-summary.js";
import { executionWorkspaceService, mergeExecutionWorkspaceConfig } from "./execution-workspaces.js";
import { environmentService } from "./environments.js";
import { workspaceOperationService } from "./workspace-operations.js";
import { isProcessGroupAlive, terminateLocalService } from "./local-service-supervisor.js";
import {
  buildExecutionWorkspaceAdapterConfig,
  gateProjectExecutionWorkspacePolicy,
  issueExecutionWorkspaceModeForPersistedWorkspace,
  parseIssueExecutionWorkspaceSettings,
  parseProjectExecutionWorkspacePolicy,
  resolveExecutionWorkspaceEnvironmentId,
  resolveExecutionWorkspaceMode,
} from "./execution-workspace-policy.js";
import { resolveEnvironmentDriverConfigForRuntime } from "./environment-config.js";
import { instanceSettingsService } from "./instance-settings.js";
import {
  RUN_LIVENESS_CONTINUATION_REASON,
  buildRunLivenessContinuationIdempotencyKey,
  decideRunLivenessContinuation,
  findExistingRunLivenessContinuationWake,
  readContinuationAttempt,
} from "./run-continuations.js";
import { redactCurrentUserText, redactCurrentUserValue } from "../log-redaction.js";
import {
  hasSessionCompactionThresholds,
  resolveSessionCompactionPolicy,
  type SessionCompactionPolicy,
} from "@paperclipai/adapter-utils";
import {
  readPaperclipSkillSyncPreference,
  writePaperclipSkillSyncPreference,
} from "@paperclipai/adapter-utils/server-utils";
import { extractSkillMentionIds } from "@paperclipai/shared";

const MAX_LIVE_LOG_CHUNK_BYTES = 8 * 1024;
const MAX_PERSISTED_LOG_CHUNK_CHARS = 64 * 1024;
const MAX_RUN_EVENT_PAYLOAD_STRING_CHARS = 16 * 1024;
const MAX_RUN_EVENT_PAYLOAD_ARRAY_ITEMS = 50;
const MAX_RUN_EVENT_PAYLOAD_OBJECT_KEYS = 100;
const MAX_RUN_EVENT_PAYLOAD_DEPTH = 6;
const HEARTBEAT_MAX_CONCURRENT_RUNS_DEFAULT = AGENT_DEFAULT_MAX_CONCURRENT_RUNS;
const HEARTBEAT_MAX_CONCURRENT_RUNS_MAX = 10;
const LIVENESS_BOOKKEEPING_ACTIVITY_ACTIONS = [
  "environment.lease_acquired",
  "environment.lease_released",
];
const DEFERRED_WAKE_CONTEXT_KEY = "_paperclipWakeContext";
const WAKE_COMMENT_IDS_KEY = "wakeCommentIds";
const PAPERCLIP_WAKE_PAYLOAD_KEY = "paperclipWake";
const PAPERCLIP_HARNESS_CHECKOUT_KEY = "paperclipHarnessCheckedOut";
const DETACHED_PROCESS_ERROR_CODE = "process_detached";
const startLocksByAgent = new Map<string, Promise<void>>();
const REPO_ONLY_CWD_SENTINEL = "/__paperclip_repo_only__";
const MANAGED_WORKSPACE_GIT_CLONE_TIMEOUT_MS = 10 * 60 * 1000;
const MAX_INLINE_WAKE_COMMENTS = 8;
const MAX_INLINE_WAKE_COMMENT_BODY_CHARS = 4_000;
const MAX_INLINE_WAKE_COMMENT_BODY_TOTAL_CHARS = 12_000;
const execFile = promisify(execFileCallback);
const EXECUTION_PATH_HEARTBEAT_RUN_STATUSES = ["queued", "running", "scheduled_retry"] as const;
const CANCELLABLE_HEARTBEAT_RUN_STATUSES = ["queued", "running", "scheduled_retry"] as const;
const HEARTBEAT_RUN_TERMINAL_STATUSES = ["succeeded", "failed", "cancelled", "timed_out"] as const;
const UNSUCCESSFUL_HEARTBEAT_RUN_TERMINAL_STATUSES = ["failed", "cancelled", "timed_out"] as const;
export const BOUNDED_TRANSIENT_HEARTBEAT_RETRY_DELAYS_MS = [
  2 * 60 * 1000,
  10 * 60 * 1000,
  30 * 60 * 1000,
  2 * 60 * 60 * 1000,
] as const;
const BOUNDED_TRANSIENT_HEARTBEAT_RETRY_JITTER_RATIO = 0.25;
const BOUNDED_TRANSIENT_HEARTBEAT_RETRY_REASON = "transient_failure";
const BOUNDED_TRANSIENT_HEARTBEAT_RETRY_WAKE_REASON = "transient_failure_retry";
const BOUNDED_TRANSIENT_HEARTBEAT_RETRY_MAX_ATTEMPTS = BOUNDED_TRANSIENT_HEARTBEAT_RETRY_DELAYS_MS.length;
type CodexTransientFallbackMode =
  | "same_session"
  | "safer_invocation"
  | "fresh_session"
  | "fresh_session_safer_invocation";

function resolveCodexTransientFallbackMode(attempt: number): CodexTransientFallbackMode {
  if (attempt <= 1) return "same_session";
  if (attempt === 2) return "safer_invocation";
  if (attempt === 3) return "fresh_session";
  return "fresh_session_safer_invocation";
}
const RUNNING_ISSUE_WAKE_REASONS_REQUIRING_FOLLOWUP = new Set(["approval_approved"]);
const SESSIONED_LOCAL_ADAPTERS = new Set([
  "claude_local",
  "codex_local",
  "cursor",
  "gemini_local",
  "hermes_local",
  "opencode_local",
  "pi_local",
]);
const INLINE_BASE64_IMAGE_DATA_RE = /("type":"image","source":\{"type":"base64","data":")([A-Za-z0-9+/=]{1024,})(")/g;

type RuntimeConfigSecretResolver = Pick<
  ReturnType<typeof secretService>,
  "resolveAdapterConfigForRuntime" | "resolveEnvBindings"
>;

export async function resolveExecutionRunAdapterConfig(input: {
  companyId: string;
  executionRunConfig: Record<string, unknown>;
  projectEnv: unknown;
  secretsSvc: RuntimeConfigSecretResolver;
}) {
  const { config: resolvedConfig, secretKeys } = await input.secretsSvc.resolveAdapterConfigForRuntime(
    input.companyId,
    input.executionRunConfig,
  );
  const projectEnvResolution = input.projectEnv
    ? await input.secretsSvc.resolveEnvBindings(input.companyId, input.projectEnv)
    : { env: {}, secretKeys: new Set<string>() };
  if (Object.keys(projectEnvResolution.env).length > 0) {
    resolvedConfig.env = {
      ...parseObject(resolvedConfig.env),
      ...projectEnvResolution.env,
    };
    for (const key of projectEnvResolution.secretKeys) {
      secretKeys.add(key);
    }
  }
  return { resolvedConfig, secretKeys };
}

export function extractMentionedSkillIdsFromSources(
  sources: Array<string | null | undefined>,
): string[] {
  const mentionedIds = new Set<string>();
  for (const source of sources) {
    if (typeof source !== "string" || source.length === 0) continue;
    for (const skillId of extractSkillMentionIds(source)) {
      mentionedIds.add(skillId);
    }
  }
  return [...mentionedIds];
}

export function applyRunScopedMentionedSkillKeys(
  config: Record<string, unknown>,
  skillKeys: string[],
): Record<string, unknown> {
  const normalizedSkillKeys = Array.from(
    new Set(
      skillKeys
        .map((value) => value.trim())
        .filter(Boolean),
    ),
  );
  if (normalizedSkillKeys.length === 0) return config;

  const existingPreference = readPaperclipSkillSyncPreference(config);
  return writePaperclipSkillSyncPreference(config, [
    ...existingPreference.desiredSkills,
    ...normalizedSkillKeys,
  ]);
}

export function computeBoundedTransientHeartbeatRetrySchedule(
  attempt: number,
  now = new Date(),
  random: () => number = Math.random,
) {
  if (!Number.isInteger(attempt) || attempt <= 0) return null;
  const baseDelayMs = BOUNDED_TRANSIENT_HEARTBEAT_RETRY_DELAYS_MS[attempt - 1];
  if (typeof baseDelayMs !== "number") return null;
  const sample = Math.min(1, Math.max(0, random()));
  const jitterMultiplier = 1 + (((sample * 2) - 1) * BOUNDED_TRANSIENT_HEARTBEAT_RETRY_JITTER_RATIO);
  const delayMs = Math.max(1_000, Math.round(baseDelayMs * jitterMultiplier));
  return {
    attempt,
    baseDelayMs,
    delayMs,
    dueAt: new Date(now.getTime() + delayMs),
    maxAttempts: BOUNDED_TRANSIENT_HEARTBEAT_RETRY_MAX_ATTEMPTS,
  };
}

async function resolveRunScopedMentionedSkillKeys(input: {
  db: Db;
  companyId: string;
  issueId: string | null;
}): Promise<string[]> {
  if (!input.issueId) return [];

  const issue = await input.db
    .select({
      title: issues.title,
      description: issues.description,
    })
    .from(issues)
    .where(and(eq(issues.id, input.issueId), eq(issues.companyId, input.companyId)))
    .then((rows) => rows[0] ?? null);
  if (!issue) return [];

  const comments = await input.db
    .select({ body: issueComments.body })
    .from(issueComments)
    .where(
      and(
        eq(issueComments.issueId, input.issueId),
        eq(issueComments.companyId, input.companyId),
      ),
    );
  const mentionedSkillIds = extractMentionedSkillIdsFromSources([
    issue.title,
    issue.description ?? "",
    ...comments.map((comment) => comment.body),
  ]);
  if (mentionedSkillIds.length === 0) return [];

  const skillRows = await input.db
    .select({
      id: companySkillsTable.id,
      key: companySkillsTable.key,
    })
    .from(companySkillsTable)
    .where(
      and(
        eq(companySkillsTable.companyId, input.companyId),
        inArray(companySkillsTable.id, mentionedSkillIds),
      ),
    );
  const skillKeyById = new Map(skillRows.map((row) => [row.id, row.key]));
  return mentionedSkillIds
    .map((skillId) => skillKeyById.get(skillId) ?? null)
    .filter((skillKey): skillKey is string => Boolean(skillKey));
}

function leaseReleaseStatusForRunStatus(
  status: string | null | undefined,
): Extract<EnvironmentLeaseStatus, "released" | "expired" | "failed"> {
  return status === "failed" || status === "timed_out" ? "failed" : "released";
}

function runtimeApiUrlCandidates() {
  const candidates = [
    process.env.PAPERCLIP_RUNTIME_API_URL,
    process.env.PAPERCLIP_API_URL,
    process.env.PUBLIC_BASE_URL,
  ].filter((value): value is string => typeof value === "string" && value.trim().length > 0);
  const encoded = process.env.PAPERCLIP_RUNTIME_API_CANDIDATES_JSON;
  if (!encoded) return candidates;
  try {
    const parsed = JSON.parse(encoded);
    if (Array.isArray(parsed)) {
      candidates.push(
        ...parsed.filter((value): value is string => typeof value === "string" && value.trim().length > 0),
      );
    }
  } catch {
    logger.warn("Ignoring invalid PAPERCLIP_RUNTIME_API_CANDIDATES_JSON");
  }
  return candidates;
}

export function applyPersistedExecutionWorkspaceConfig(input: {
  config: Record<string, unknown>;
  workspaceConfig: ExecutionWorkspaceConfig | null;
  mode: ReturnType<typeof resolveExecutionWorkspaceMode>;
}) {
  const nextConfig = { ...input.config };

  if (input.mode !== "agent_default") {
    if (input.workspaceConfig?.workspaceRuntime === null) {
      delete nextConfig.workspaceRuntime;
    } else if (input.workspaceConfig?.workspaceRuntime) {
      nextConfig.workspaceRuntime = { ...input.workspaceConfig.workspaceRuntime };
    }
    if (input.workspaceConfig?.desiredState === null) {
      delete nextConfig.desiredState;
    } else if (input.workspaceConfig?.desiredState) {
      nextConfig.desiredState = input.workspaceConfig.desiredState;
    }
    if (input.workspaceConfig?.serviceStates === null) {
      delete nextConfig.serviceStates;
    } else if (input.workspaceConfig?.serviceStates) {
      nextConfig.serviceStates = { ...input.workspaceConfig.serviceStates };
    }
  }

  if (input.workspaceConfig && input.mode === "isolated_workspace") {
    const nextStrategy = parseObject(nextConfig.workspaceStrategy);
    if (input.workspaceConfig.provisionCommand === null) delete nextStrategy.provisionCommand;
    else nextStrategy.provisionCommand = input.workspaceConfig.provisionCommand;
    if (input.workspaceConfig.teardownCommand === null) delete nextStrategy.teardownCommand;
    else nextStrategy.teardownCommand = input.workspaceConfig.teardownCommand;
    nextConfig.workspaceStrategy = nextStrategy;
  }

  return nextConfig;
}

export function stripWorkspaceRuntimeFromExecutionRunConfig(config: Record<string, unknown>) {
  const nextConfig = { ...config };
  delete nextConfig.workspaceRuntime;
  return nextConfig;
}

export function buildRealizedExecutionWorkspaceFromPersisted(input: {
  base: ExecutionWorkspaceInput;
  workspace: ExecutionWorkspace;
}): RealizedExecutionWorkspace | null {
  const cwd = readNonEmptyString(input.workspace.cwd) ?? readNonEmptyString(input.workspace.providerRef);
  if (!cwd) {
    return null;
  }

  const strategy = input.workspace.strategyType === "git_worktree" ? "git_worktree" : "project_primary";
  return {
    baseCwd: input.base.baseCwd,
    source: input.workspace.mode === "shared_workspace" ? "project_primary" : "task_session",
    projectId: input.workspace.projectId ?? input.base.projectId,
    workspaceId: input.workspace.projectWorkspaceId ?? input.base.workspaceId,
    repoUrl: input.workspace.repoUrl ?? input.base.repoUrl,
    repoRef: input.workspace.baseRef ?? input.base.repoRef,
    strategy,
    cwd,
    branchName: input.workspace.branchName ?? null,
    worktreePath: strategy === "git_worktree" ? (readNonEmptyString(input.workspace.providerRef) ?? cwd) : null,
    warnings: [],
    created: false,
  };
}

function buildExecutionWorkspaceConfigSnapshot(
  config: Record<string, unknown>,
  environmentId?: string | null,
): Partial<ExecutionWorkspaceConfig> | null {
  const strategy = parseObject(config.workspaceStrategy);
  const snapshot: Partial<ExecutionWorkspaceConfig> = {};
  // Persist the resolved environment onto the workspace so reused sessions stay on the
  // environment they were created against until the workspace itself is recreated/reset.
  const hasExplicitEnvironmentSelection = environmentId !== undefined;

  if (hasExplicitEnvironmentSelection) {
    snapshot.environmentId = environmentId ?? null;
  }

  if ("workspaceStrategy" in config) {
    snapshot.provisionCommand = typeof strategy.provisionCommand === "string" ? strategy.provisionCommand : null;
    snapshot.teardownCommand = typeof strategy.teardownCommand === "string" ? strategy.teardownCommand : null;
  }

  if ("workspaceRuntime" in config) {
    const workspaceRuntime = parseObject(config.workspaceRuntime);
    snapshot.workspaceRuntime = Object.keys(workspaceRuntime).length > 0 ? workspaceRuntime : null;
  }
  if ("desiredState" in config) {
    snapshot.desiredState =
      config.desiredState === "running" || config.desiredState === "stopped" || config.desiredState === "manual"
        ? config.desiredState
        : null;
  }
  if ("serviceStates" in config) {
    const serviceStates = parseObject(config.serviceStates);
    snapshot.serviceStates = Object.keys(serviceStates).length > 0
      ? Object.fromEntries(
          Object.entries(serviceStates).filter(([, state]) =>
            state === "running" || state === "stopped" || state === "manual"
          ),
        ) as ExecutionWorkspaceConfig["serviceStates"]
      : null;
  }

  const hasSnapshot = Object.values(snapshot).some((value) => {
    if (value === null) return false;
    if (typeof value === "object") return Object.keys(value).length > 0;
    return true;
  });
  return hasSnapshot || hasExplicitEnvironmentSelection ? snapshot : null;
}

function deriveRepoNameFromRepoUrl(repoUrl: string | null): string | null {
  const trimmed = repoUrl?.trim() ?? "";
  if (!trimmed) return null;
  try {
    const parsed = new URL(trimmed);
    const cleanedPath = parsed.pathname.replace(/\/+$/, "");
    const repoName = cleanedPath.split("/").filter(Boolean).pop()?.replace(/\.git$/i, "") ?? "";
    return repoName || null;
  } catch {
    return null;
  }
}

async function ensureManagedProjectWorkspace(input: {
  companyId: string;
  projectId: string;
  repoUrl: string | null;
}): Promise<{ cwd: string; warning: string | null }> {
  const cwd = resolveManagedProjectWorkspaceDir({
    companyId: input.companyId,
    projectId: input.projectId,
    repoName: deriveRepoNameFromRepoUrl(input.repoUrl),
  });
  await fs.mkdir(path.dirname(cwd), { recursive: true });
  const stats = await fs.stat(cwd).catch(() => null);

  if (!input.repoUrl) {
    if (!stats) {
      await fs.mkdir(cwd, { recursive: true });
    }
    return { cwd, warning: null };
  }

  const gitDirExists = await fs
    .stat(path.resolve(cwd, ".git"))
    .then((entry) => entry.isDirectory())
    .catch(() => false);
  if (gitDirExists) {
    return { cwd, warning: null };
  }

  if (stats) {
    const entries = await fs.readdir(cwd).catch(() => []);
    if (entries.length > 0) {
      return {
        cwd,
        warning: `Managed workspace path "${cwd}" already exists but is not a git checkout. Using it as-is.`,
      };
    }
    await fs.rm(cwd, { recursive: true, force: true });
  }

  try {
    await execFile("git", ["clone", input.repoUrl, cwd], {
      env: sanitizeRuntimeServiceBaseEnv(process.env),
      timeout: MANAGED_WORKSPACE_GIT_CLONE_TIMEOUT_MS,
    });
    return { cwd, warning: null };
  } catch (error) {
    const reason = error instanceof Error ? error.message : String(error);
    throw new Error(`Failed to prepare managed checkout for "${input.repoUrl}" at "${cwd}": ${reason}`);
  }
}

const heartbeatRunProcessGroupIdColumn =
  heartbeatRuns.processGroupId ?? sql<number | null>`NULL`.as("processGroupId");

const heartbeatRunListColumns = {
  id: heartbeatRuns.id,
  companyId: heartbeatRuns.companyId,
  agentId: heartbeatRuns.agentId,
  invocationSource: heartbeatRuns.invocationSource,
  triggerDetail: heartbeatRuns.triggerDetail,
  status: heartbeatRuns.status,
  startedAt: heartbeatRuns.startedAt,
  finishedAt: heartbeatRuns.finishedAt,
  error: heartbeatRuns.error,
  wakeupRequestId: heartbeatRuns.wakeupRequestId,
  exitCode: heartbeatRuns.exitCode,
  signal: heartbeatRuns.signal,
  usageJson: heartbeatRuns.usageJson,
  sessionIdBefore: heartbeatRuns.sessionIdBefore,
  sessionIdAfter: heartbeatRuns.sessionIdAfter,
  logStore: heartbeatRuns.logStore,
  logRef: heartbeatRuns.logRef,
  logBytes: heartbeatRuns.logBytes,
  logSha256: heartbeatRuns.logSha256,
  logCompressed: heartbeatRuns.logCompressed,
  stdoutExcerpt: sql<string | null>`NULL`.as("stdoutExcerpt"),
  stderrExcerpt: sql<string | null>`NULL`.as("stderrExcerpt"),
  errorCode: heartbeatRuns.errorCode,
  externalRunId: heartbeatRuns.externalRunId,
  processPid: heartbeatRuns.processPid,
  processGroupId: heartbeatRunProcessGroupIdColumn,
  processStartedAt: heartbeatRuns.processStartedAt,
  retryOfRunId: heartbeatRuns.retryOfRunId,
  processLossRetryCount: heartbeatRuns.processLossRetryCount,
  scheduledRetryAt: heartbeatRuns.scheduledRetryAt,
  scheduledRetryAttempt: heartbeatRuns.scheduledRetryAttempt,
  scheduledRetryReason: heartbeatRuns.scheduledRetryReason,
  livenessState: heartbeatRuns.livenessState,
  livenessReason: heartbeatRuns.livenessReason,
  continuationAttempt: heartbeatRuns.continuationAttempt,
  lastUsefulActionAt: heartbeatRuns.lastUsefulActionAt,
  nextAction: heartbeatRuns.nextAction,
  createdAt: heartbeatRuns.createdAt,
  updatedAt: heartbeatRuns.updatedAt,
} as const;

const heartbeatRunListContextColumns = {
  contextIssueId: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'issueId'`.as("contextIssueId"),
  contextTaskId: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'taskId'`.as("contextTaskId"),
  contextTaskKey: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'taskKey'`.as("contextTaskKey"),
  contextCommentId: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'commentId'`.as("contextCommentId"),
  contextWakeCommentId: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'wakeCommentId'`.as("contextWakeCommentId"),
  contextWakeReason: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'wakeReason'`.as("contextWakeReason"),
  contextWakeSource: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'wakeSource'`.as("contextWakeSource"),
  contextWakeTriggerDetail: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'wakeTriggerDetail'`.as("contextWakeTriggerDetail"),
} as const;

const heartbeatRunListResultColumns = {
  resultSummary: sql<string | null>`left(${heartbeatRuns.resultJson} ->> 'summary', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS})`.as("resultSummary"),
  resultResult: sql<string | null>`left(${heartbeatRuns.resultJson} ->> 'result', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS})`.as("resultResult"),
  resultMessage: sql<string | null>`left(${heartbeatRuns.resultJson} ->> 'message', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS})`.as("resultMessage"),
  resultError: sql<string | null>`left(${heartbeatRuns.resultJson} ->> 'error', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS})`.as("resultError"),
  resultTotalCostUsd: sql<string | null>`${heartbeatRuns.resultJson} ->> 'total_cost_usd'`.as("resultTotalCostUsd"),
  resultCostUsd: sql<string | null>`${heartbeatRuns.resultJson} ->> 'cost_usd'`.as("resultCostUsd"),
  resultCostUsdCamel: sql<string | null>`${heartbeatRuns.resultJson} ->> 'costUsd'`.as("resultCostUsdCamel"),
} as const;

const heartbeatRunSafeResultJsonColumn = sql<Record<string, unknown> | null>`
  case
    when ${heartbeatRuns.resultJson} is null then null
    when pg_column_size(${heartbeatRuns.resultJson}) <= ${HEARTBEAT_RUN_SAFE_RESULT_JSON_MAX_BYTES}
      then ${heartbeatRuns.resultJson}
    else jsonb_strip_nulls(
      jsonb_build_object(
        'summary', left(${heartbeatRuns.resultJson} ->> 'summary', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS}),
        'result', left(${heartbeatRuns.resultJson} ->> 'result', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS}),
        'message', left(${heartbeatRuns.resultJson} ->> 'message', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS}),
        'error', left(${heartbeatRuns.resultJson} ->> 'error', ${HEARTBEAT_RUN_RESULT_SUMMARY_MAX_CHARS}),
        'stdout', left(${heartbeatRuns.resultJson} ->> 'stdout', ${HEARTBEAT_RUN_RESULT_OUTPUT_MAX_CHARS}),
        'stderr', left(${heartbeatRuns.resultJson} ->> 'stderr', ${HEARTBEAT_RUN_RESULT_OUTPUT_MAX_CHARS}),
        'stdoutTruncated', case
          when length(${heartbeatRuns.resultJson} ->> 'stdout') > ${HEARTBEAT_RUN_RESULT_OUTPUT_MAX_CHARS}
            then to_jsonb(true)
          else null
        end,
        'stderrTruncated', case
          when length(${heartbeatRuns.resultJson} ->> 'stderr') > ${HEARTBEAT_RUN_RESULT_OUTPUT_MAX_CHARS}
            then to_jsonb(true)
          else null
        end,
        'costUsd', coalesce(
          ${heartbeatRuns.resultJson} -> 'costUsd',
          ${heartbeatRuns.resultJson} -> 'cost_usd',
          ${heartbeatRuns.resultJson} -> 'total_cost_usd'
        ),
        'cost_usd', coalesce(
          ${heartbeatRuns.resultJson} -> 'cost_usd',
          ${heartbeatRuns.resultJson} -> 'costUsd',
          ${heartbeatRuns.resultJson} -> 'total_cost_usd'
        ),
        'total_cost_usd', coalesce(
          ${heartbeatRuns.resultJson} -> 'total_cost_usd',
          ${heartbeatRuns.resultJson} -> 'cost_usd',
          ${heartbeatRuns.resultJson} -> 'costUsd'
        ),
        'truncated', true,
        'truncationReason', 'oversized_result_json',
        'originalSizeBytes', pg_column_size(${heartbeatRuns.resultJson})
      )
    )
  end
`.as("resultJson");

const heartbeatRunSafeColumns = {
  ...getTableColumns(heartbeatRuns),
  processGroupId: heartbeatRunProcessGroupIdColumn,
  resultJson: heartbeatRunSafeResultJsonColumn,
} as const;

const heartbeatRunSqlAsciiSafeColumns = {
  ...getTableColumns(heartbeatRuns),
  processGroupId: heartbeatRunProcessGroupIdColumn,
  error: sql<string | null>`NULL`.as("error"),
  resultJson: sql<Record<string, unknown> | null>`NULL`.as("resultJson"),
  stdoutExcerpt: sql<string | null>`NULL`.as("stdoutExcerpt"),
  stderrExcerpt: sql<string | null>`NULL`.as("stderrExcerpt"),
} as const;

const heartbeatRunLogAccessColumns = {
  id: heartbeatRuns.id,
  companyId: heartbeatRuns.companyId,
  logStore: heartbeatRuns.logStore,
  logRef: heartbeatRuns.logRef,
} as const;

const heartbeatRunIssueSummaryColumns = {
  id: heartbeatRuns.id,
  status: heartbeatRuns.status,
  invocationSource: heartbeatRuns.invocationSource,
  triggerDetail: heartbeatRuns.triggerDetail,
  startedAt: heartbeatRuns.startedAt,
  finishedAt: heartbeatRuns.finishedAt,
  createdAt: heartbeatRuns.createdAt,
  agentId: heartbeatRuns.agentId,
  livenessState: heartbeatRuns.livenessState,
  livenessReason: heartbeatRuns.livenessReason,
  continuationAttempt: heartbeatRuns.continuationAttempt,
  lastUsefulActionAt: heartbeatRuns.lastUsefulActionAt,
  nextAction: heartbeatRuns.nextAction,
  issueId: sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'issueId'`.as("issueId"),
} as const;

function appendExcerpt(prev: string, chunk: string) {
  return appendWithByteCap(prev, chunk, MAX_EXCERPT_BYTES);
}

function truncateRunEventString(value: string) {
  if (value.length <= MAX_RUN_EVENT_PAYLOAD_STRING_CHARS) return value;
  const omittedChars = value.length - MAX_RUN_EVENT_PAYLOAD_STRING_CHARS;
  return `${value.slice(0, MAX_RUN_EVENT_PAYLOAD_STRING_CHARS)}\n[truncated ${omittedChars} chars]`;
}

function boundRunEventValue(value: unknown, depth: number, seen: WeakSet<object>): unknown {
  if (typeof value === "string") {
    return truncateRunEventString(value);
  }
  if (
    value === null
    || typeof value === "number"
    || typeof value === "boolean"
  ) {
    return value;
  }
  if (value instanceof Date) {
    return value.toISOString();
  }
  if (Array.isArray(value)) {
    if (depth >= MAX_RUN_EVENT_PAYLOAD_DEPTH) {
      return {
        _truncated: true,
        type: "array",
        originalLength: value.length,
      };
    }
    const bounded = value
      .slice(0, MAX_RUN_EVENT_PAYLOAD_ARRAY_ITEMS)
      .map((entry) => boundRunEventValue(entry, depth + 1, seen));
    if (value.length > MAX_RUN_EVENT_PAYLOAD_ARRAY_ITEMS) {
      bounded.push({
        _truncated: true,
        omittedItems: value.length - MAX_RUN_EVENT_PAYLOAD_ARRAY_ITEMS,
      });
    }
    return bounded;
  }
  if (typeof value !== "object" || value === undefined) {
    return null;
  }
  if (seen.has(value)) {
    return "[Circular]";
  }
  seen.add(value);
  const entries = Object.entries(value as Record<string, unknown>);
  if (depth >= MAX_RUN_EVENT_PAYLOAD_DEPTH) {
    const bounded = {
      _truncated: true,
      type: "object",
      keys: entries.map(([key]) => key).slice(0, 20),
    };
    seen.delete(value);
    return bounded;
  }

  const out: Record<string, unknown> = {};
  for (const [key, entryValue] of entries.slice(0, MAX_RUN_EVENT_PAYLOAD_OBJECT_KEYS)) {
    out[key] = boundRunEventValue(entryValue, depth + 1, seen);
  }
  if (entries.length > MAX_RUN_EVENT_PAYLOAD_OBJECT_KEYS) {
    out._truncated = true;
    out._omittedKeys = entries.length - MAX_RUN_EVENT_PAYLOAD_OBJECT_KEYS;
  }
  seen.delete(value);
  return out;
}

export function boundHeartbeatRunEventPayloadForStorage(payload: Record<string, unknown>): Record<string, unknown> {
  const bounded = boundRunEventValue(payload, 0, new WeakSet());
  return parseObject(bounded) ?? { _truncated: true };
}

function redactInlineBase64ImageData(chunk: string) {
  return chunk.replace(INLINE_BASE64_IMAGE_DATA_RE, (_match, prefix: string, data: string, suffix: string) =>
    `${prefix}[omitted base64 image data: ${data.length} chars]${suffix}`,
  );
}

export function compactRunLogChunk(chunk: string, maxChars = MAX_PERSISTED_LOG_CHUNK_CHARS) {
  const normalized = redactInlineBase64ImageData(chunk);
  if (normalized.length <= maxChars) return normalized;

  const headChars = Math.max(0, Math.floor(maxChars * 0.6));
  const tailChars = Math.max(0, Math.floor(maxChars * 0.25));
  const omittedChars = Math.max(0, normalized.length - headChars - tailChars);
  const marker = `\n[paperclip truncated run log chunk: omitted ${omittedChars} chars]\n`;
  return `${normalized.slice(0, headChars)}${marker}${normalized.slice(normalized.length - tailChars)}`;
}

function normalizeMaxConcurrentRuns(value: unknown) {
  const parsed = Math.floor(asNumber(value, HEARTBEAT_MAX_CONCURRENT_RUNS_DEFAULT));
  if (!Number.isFinite(parsed)) return HEARTBEAT_MAX_CONCURRENT_RUNS_DEFAULT;
  return Math.max(HEARTBEAT_MAX_CONCURRENT_RUNS_DEFAULT, Math.min(HEARTBEAT_MAX_CONCURRENT_RUNS_MAX, parsed));
}

async function withAgentStartLock<T>(agentId: string, fn: () => Promise<T>) {
  const previous = startLocksByAgent.get(agentId) ?? Promise.resolve();
  const run = previous.then(fn);
  const marker = run.then(
    () => undefined,
    () => undefined,
  );
  startLocksByAgent.set(agentId, marker);
  try {
    return await run;
  } finally {
    if (startLocksByAgent.get(agentId) === marker) {
      startLocksByAgent.delete(agentId);
    }
  }
}

interface WakeupOptions {
  source?: "timer" | "assignment" | "on_demand" | "automation";
  triggerDetail?: "manual" | "ping" | "callback" | "system";
  reason?: string | null;
  payload?: Record<string, unknown> | null;
  idempotencyKey?: string | null;
  requestedByActorType?: "user" | "agent" | "system";
  requestedByActorId?: string | null;
  contextSnapshot?: Record<string, unknown>;
}

type UsageTotals = {
  inputTokens: number;
  cachedInputTokens: number;
  outputTokens: number;
};

type SessionCompactionDecision = {
  rotate: boolean;
  reason: string | null;
  handoffMarkdown: string | null;
  previousRunId: string | null;
};

interface ParsedIssueAssigneeAdapterOverrides {
  adapterConfig: Record<string, unknown> | null;
  useProjectWorkspace: boolean | null;
}

export type ResolvedWorkspaceForRun = {
  cwd: string;
  source: "project_primary" | "task_session" | "agent_home";
  projectId: string | null;
  workspaceId: string | null;
  repoUrl: string | null;
  repoRef: string | null;
  workspaceHints: Array<{
    workspaceId: string;
    cwd: string | null;
    repoUrl: string | null;
    repoRef: string | null;
  }>;
  warnings: string[];
};

type ProjectWorkspaceCandidate = {
  id: string;
};

export function prioritizeProjectWorkspaceCandidatesForRun<T extends ProjectWorkspaceCandidate>(
  rows: T[],
  preferredWorkspaceId: string | null | undefined,
): T[] {
  if (!preferredWorkspaceId) return rows;
  const preferredIndex = rows.findIndex((row) => row.id === preferredWorkspaceId);
  if (preferredIndex <= 0) return rows;
  return [rows[preferredIndex]!, ...rows.slice(0, preferredIndex), ...rows.slice(preferredIndex + 1)];
}

function readNonEmptyString(value: unknown): string | null {
  return typeof value === "string" && value.trim().length > 0 ? value : null;
}

export function summarizeHeartbeatRunContextSnapshot(
  contextSnapshot: Record<string, unknown> | null | undefined,
): Record<string, unknown> | null {
  const summary: Record<string, unknown> = {};
  const allowedKeys = [
    "issueId",
    "taskId",
    "taskKey",
    "commentId",
    "wakeCommentId",
    "wakeReason",
    "wakeSource",
    "wakeTriggerDetail",
  ] as const;

  for (const key of allowedKeys) {
    const value = readNonEmptyString(contextSnapshot?.[key]);
    if (value) summary[key] = value;
  }

  return Object.keys(summary).length > 0 ? summary : null;
}

export function summarizeHeartbeatRunListResultJson(input: {
  summary?: string | null;
  result?: string | null;
  message?: string | null;
  error?: string | null;
  totalCostUsd?: string | null;
  costUsd?: string | null;
  costUsdCamel?: string | null;
}): Record<string, unknown> | null {
  const summary: Record<string, unknown> = {};
  for (const [key, value] of [
    ["summary", input.summary],
    ["result", input.result],
    ["message", input.message],
    ["error", input.error],
  ] as const) {
    const normalized = readNonEmptyString(value);
    if (normalized) summary[key] = normalized;
  }

  for (const [key, value] of [
    ["total_cost_usd", input.totalCostUsd],
    ["cost_usd", input.costUsd],
    ["costUsd", input.costUsdCamel],
  ] as const) {
    const normalized = readNonEmptyString(value);
    if (!normalized) continue;
    const parsed = Number(normalized);
    if (Number.isFinite(parsed)) summary[key] = parsed;
  }

  return Object.keys(summary).length > 0 ? summary : null;
}

function summarizeRunFailureForIssueComment(
  run: Pick<typeof heartbeatRuns.$inferSelect, "error" | "errorCode"> | null | undefined,
) {
  if (!run) return null;

  const errorCode = readNonEmptyString(run.errorCode)?.trim() ?? null;
  const rawError = readNonEmptyString(run.error)?.trim() ?? null;
  const apiMessageMatch = rawError?.match(/"message"\s*:\s*"([^"]+)"/);
  const firstLine = rawError
    ?.split(/\r?\n/)
    .map((line) => line.trim())
    .find(Boolean) ?? null;
  const summarySource = apiMessageMatch?.[1] ?? firstLine;
  const summary =
    summarySource && summarySource.length > 240
      ? `${summarySource.slice(0, 237)}...`
      : summarySource;

  if (errorCode && summary) return ` Latest retry failure: \`${errorCode}\` - ${summary}.`;
  if (errorCode) return ` Latest retry failure: \`${errorCode}\`.`;
  if (summary) return ` Latest retry failure: ${summary}.`;
  return null;
}

function didAutomaticRecoveryFail(
  latestRun: Pick<typeof heartbeatRuns.$inferSelect, "status" | "contextSnapshot"> | null,
  expectedRetryReason: "assignment_recovery" | "issue_continuation_needed",
) {
  if (!latestRun) return false;

  const latestContext = parseObject(latestRun.contextSnapshot);
  const latestRetryReason = readNonEmptyString(latestContext.retryReason);
  return (
    latestRetryReason === expectedRetryReason &&
    UNSUCCESSFUL_HEARTBEAT_RUN_TERMINAL_STATUSES.includes(
      latestRun.status as (typeof UNSUCCESSFUL_HEARTBEAT_RUN_TERMINAL_STATUSES)[number],
    )
  );
}

function normalizeLedgerBillingType(value: unknown): BillingType {
  const raw = readNonEmptyString(value);
  switch (raw) {
    case "api":
    case "metered_api":
      return "metered_api";
    case "subscription":
    case "subscription_included":
      return "subscription_included";
    case "subscription_overage":
      return "subscription_overage";
    case "credits":
      return "credits";
    case "fixed":
      return "fixed";
    default:
      return "unknown";
  }
}

function resolveLedgerBiller(result: AdapterExecutionResult): string {
  return readNonEmptyString(result.biller) ?? readNonEmptyString(result.provider) ?? "unknown";
}

function normalizeBilledCostCents(costUsd: number | null | undefined, billingType: BillingType): number {
  if (billingType === "subscription_included") return 0;
  if (typeof costUsd !== "number" || !Number.isFinite(costUsd)) return 0;
  return Math.max(0, Math.round(costUsd * 100));
}

async function resolveLedgerScopeForRun(
  db: Db,
  companyId: string,
  run: typeof heartbeatRuns.$inferSelect,
) {
  const context = parseObject(run.contextSnapshot);
  const contextIssueId = readNonEmptyString(context.issueId);
  const contextProjectId = readNonEmptyString(context.projectId);

  if (!contextIssueId) {
    return {
      issueId: null,
      projectId: contextProjectId,
    };
  }

  const issue = await db
    .select({
      id: issues.id,
      projectId: issues.projectId,
    })
    .from(issues)
    .where(and(eq(issues.id, contextIssueId), eq(issues.companyId, companyId)))
    .then((rows) => rows[0] ?? null);

  return {
    issueId: issue?.id ?? null,
    projectId: issue?.projectId ?? contextProjectId,
  };
}

type ResumeSessionRow = {
  sessionParamsJson: Record<string, unknown> | null;
  sessionDisplayId: string | null;
  lastRunId: string | null;
};

export function buildExplicitResumeSessionOverride(input: {
  resumeFromRunId: string;
  resumeRunSessionIdBefore: string | null;
  resumeRunSessionIdAfter: string | null;
  taskSession: ResumeSessionRow | null;
  sessionCodec: AdapterSessionCodec;
}) {
  const desiredDisplayId = truncateDisplayId(
    input.resumeRunSessionIdAfter ?? input.resumeRunSessionIdBefore,
  );
  const taskSessionParams = normalizeSessionParams(
    input.sessionCodec.deserialize(input.taskSession?.sessionParamsJson ?? null),
  );
  const taskSessionDisplayId = truncateDisplayId(
    input.taskSession?.sessionDisplayId ??
      (input.sessionCodec.getDisplayId ? input.sessionCodec.getDisplayId(taskSessionParams) : null) ??
      readNonEmptyString(taskSessionParams?.sessionId),
  );
  const canReuseTaskSessionParams =
    input.taskSession != null &&
    (
      input.taskSession.lastRunId === input.resumeFromRunId ||
      (!!desiredDisplayId && taskSessionDisplayId === desiredDisplayId)
    );
  const sessionParams =
    canReuseTaskSessionParams
      ? taskSessionParams
      : desiredDisplayId
        ? { sessionId: desiredDisplayId }
        : null;
  const sessionDisplayId = desiredDisplayId ?? (canReuseTaskSessionParams ? taskSessionDisplayId : null);

  if (!sessionDisplayId && !sessionParams) return null;
  return {
    sessionDisplayId,
    sessionParams,
  };
}

function normalizeUsageTotals(usage: UsageSummary | null | undefined): UsageTotals | null {
  if (!usage) return null;
  return {
    inputTokens: Math.max(0, Math.floor(asNumber(usage.inputTokens, 0))),
    cachedInputTokens: Math.max(0, Math.floor(asNumber(usage.cachedInputTokens, 0))),
    outputTokens: Math.max(0, Math.floor(asNumber(usage.outputTokens, 0))),
  };
}

function readRawUsageTotals(usageJson: unknown): UsageTotals | null {
  const parsed = parseObject(usageJson);
  if (Object.keys(parsed).length === 0) return null;

  const inputTokens = Math.max(
    0,
    Math.floor(asNumber(parsed.rawInputTokens, asNumber(parsed.inputTokens, 0))),
  );
  const cachedInputTokens = Math.max(
    0,
    Math.floor(asNumber(parsed.rawCachedInputTokens, asNumber(parsed.cachedInputTokens, 0))),
  );
  const outputTokens = Math.max(
    0,
    Math.floor(asNumber(parsed.rawOutputTokens, asNumber(parsed.outputTokens, 0))),
  );

  if (inputTokens <= 0 && cachedInputTokens <= 0 && outputTokens <= 0) {
    return null;
  }

  return {
    inputTokens,
    cachedInputTokens,
    outputTokens,
  };
}

function deriveNormalizedUsageDelta(current: UsageTotals | null, previous: UsageTotals | null): UsageTotals | null {
  if (!current) return null;
  if (!previous) return { ...current };

  const inputTokens = current.inputTokens >= previous.inputTokens
    ? current.inputTokens - previous.inputTokens
    : current.inputTokens;
  const cachedInputTokens = current.cachedInputTokens >= previous.cachedInputTokens
    ? current.cachedInputTokens - previous.cachedInputTokens
    : current.cachedInputTokens;
  const outputTokens = current.outputTokens >= previous.outputTokens
    ? current.outputTokens - previous.outputTokens
    : current.outputTokens;

  return {
    inputTokens: Math.max(0, inputTokens),
    cachedInputTokens: Math.max(0, cachedInputTokens),
    outputTokens: Math.max(0, outputTokens),
  };
}

function formatCount(value: number | null | undefined) {
  if (typeof value !== "number" || !Number.isFinite(value)) return "0";
  return value.toLocaleString("en-US");
}

export function parseSessionCompactionPolicy(agent: typeof agents.$inferSelect): SessionCompactionPolicy {
  return resolveSessionCompactionPolicy(agent.adapterType, agent.runtimeConfig).policy;
}

export function resolveRuntimeSessionParamsForWorkspace(input: {
  agentId: string;
  previousSessionParams: Record<string, unknown> | null;
  resolvedWorkspace: ResolvedWorkspaceForRun;
}) {
  const { agentId, previousSessionParams, resolvedWorkspace } = input;
  const previousSessionId = readNonEmptyString(previousSessionParams?.sessionId);
  const previousCwd = readNonEmptyString(previousSessionParams?.cwd);
  if (!previousSessionId || !previousCwd) {
    return {
      sessionParams: previousSessionParams,
      warning: null as string | null,
    };
  }
  if (resolvedWorkspace.source !== "project_primary") {
    return {
      sessionParams: previousSessionParams,
      warning: null as string | null,
    };
  }
  const projectCwd = readNonEmptyString(resolvedWorkspace.cwd);
  if (!projectCwd) {
    return {
      sessionParams: previousSessionParams,
      warning: null as string | null,
    };
  }
  const fallbackAgentHomeCwd = resolveDefaultAgentWorkspaceDir(agentId);
  if (path.resolve(previousCwd) !== path.resolve(fallbackAgentHomeCwd)) {
    return {
      sessionParams: previousSessionParams,
      warning: null as string | null,
    };
  }
  if (path.resolve(projectCwd) === path.resolve(previousCwd)) {
    return {
      sessionParams: previousSessionParams,
      warning: null as string | null,
    };
  }
  const previousWorkspaceId = readNonEmptyString(previousSessionParams?.workspaceId);
  if (
    previousWorkspaceId &&
    resolvedWorkspace.workspaceId &&
    previousWorkspaceId !== resolvedWorkspace.workspaceId
  ) {
    return {
      sessionParams: previousSessionParams,
      warning: null as string | null,
    };
  }

  const migratedSessionParams: Record<string, unknown> = {
    ...(previousSessionParams ?? {}),
    cwd: projectCwd,
  };
  if (resolvedWorkspace.workspaceId) migratedSessionParams.workspaceId = resolvedWorkspace.workspaceId;
  if (resolvedWorkspace.repoUrl) migratedSessionParams.repoUrl = resolvedWorkspace.repoUrl;
  if (resolvedWorkspace.repoRef) migratedSessionParams.repoRef = resolvedWorkspace.repoRef;

  return {
    sessionParams: migratedSessionParams,
    warning:
      `Project workspace "${projectCwd}" is now available. ` +
      `Attempting to resume session "${previousSessionId}" that was previously saved in fallback workspace "${previousCwd}".`,
  };
}

function parseIssueAssigneeAdapterOverrides(
  raw: unknown,
): ParsedIssueAssigneeAdapterOverrides | null {
  const parsed = parseObject(raw);
  const parsedAdapterConfig = parseObject(parsed.adapterConfig);
  const adapterConfig =
    Object.keys(parsedAdapterConfig).length > 0 ? parsedAdapterConfig : null;
  const useProjectWorkspace =
    typeof parsed.useProjectWorkspace === "boolean"
      ? parsed.useProjectWorkspace
      : null;
  if (!adapterConfig && useProjectWorkspace === null) return null;
  return {
    adapterConfig,
    useProjectWorkspace,
  };
}

/**
 * Synthetic task key for timer/heartbeat wakes that have no issue context.
 * This allows timer wakes to participate in the `agentTaskSessions` system
 * and benefit from robust session resume, instead of relying solely on the
 * simpler `agentRuntimeState.sessionId` fallback.
 */
const HEARTBEAT_TASK_KEY = "__heartbeat__";

function deriveTaskKey(
  contextSnapshot: Record<string, unknown> | null | undefined,
  payload: Record<string, unknown> | null | undefined,
) {
  return (
    readNonEmptyString(contextSnapshot?.taskKey) ??
    readNonEmptyString(contextSnapshot?.taskId) ??
    readNonEmptyString(contextSnapshot?.issueId) ??
    readNonEmptyString(payload?.taskKey) ??
    readNonEmptyString(payload?.taskId) ??
    readNonEmptyString(payload?.issueId) ??
    null
  );
}

/**
 * Extended task key derivation that falls back to a stable synthetic key
 * for timer/heartbeat wakes. This ensures timer wakes can resume their
 * previous session via `agentTaskSessions` instead of starting fresh.
 *
 * The synthetic key is only used when:
 * - No explicit task/issue key exists in the context
 * - The wake source is "timer" (scheduled heartbeat)
 */
export function deriveTaskKeyWithHeartbeatFallback(
  contextSnapshot: Record<string, unknown> | null | undefined,
  payload: Record<string, unknown> | null | undefined,
) {
  const explicit = deriveTaskKey(contextSnapshot, payload);
  if (explicit) return explicit;

  const wakeSource = readNonEmptyString(contextSnapshot?.wakeSource);
  if (wakeSource === "timer") return HEARTBEAT_TASK_KEY;

  return null;
}

export function shouldResetTaskSessionForWake(
  contextSnapshot: Record<string, unknown> | null | undefined,
) {
  if (contextSnapshot?.forceFreshSession === true) return true;

  const wakeReason = readNonEmptyString(contextSnapshot?.wakeReason);
  if (
    wakeReason === "issue_assigned" ||
    wakeReason === "execution_review_requested" ||
    wakeReason === "execution_approval_requested" ||
    wakeReason === "execution_changes_requested"
  ) {
    return true;
  }
  return false;
}

function shouldRequireIssueCommentForWake(
  contextSnapshot: Record<string, unknown> | null | undefined,
) {
  const wakeReason = readNonEmptyString(contextSnapshot?.wakeReason);
  return (
    wakeReason === "issue_assigned" ||
    wakeReason === "execution_review_requested" ||
    wakeReason === "execution_approval_requested" ||
    wakeReason === "execution_changes_requested"
  );
}

function allowsIssueInteractionWake(
  contextSnapshot: Record<string, unknown> | null | undefined,
) {
  const wakeReason = readNonEmptyString(contextSnapshot?.wakeReason);
  if (!wakeReason || !ISSUE_TREE_CONTROL_INTERACTION_WAKE_REASONS.has(wakeReason)) return false;
  return Boolean(deriveCommentId(contextSnapshot, null));
}

async function listUnresolvedBlockerSummaries(
  dbOrTx: Pick<Db, "select">,
  companyId: string,
  issueId: string,
  unresolvedBlockerIssueIds: string[],
) {
  const ids = [...new Set(unresolvedBlockerIssueIds.filter(Boolean))];
  if (ids.length === 0) return [];
  return dbOrTx
    .select({
      id: issues.id,
      identifier: issues.identifier,
      title: issues.title,
      status: issues.status,
      priority: issues.priority,
      assigneeAgentId: issues.assigneeAgentId,
      assigneeUserId: issues.assigneeUserId,
    })
    .from(issueRelations)
    .innerJoin(issues, eq(issueRelations.issueId, issues.id))
    .where(
      and(
        eq(issueRelations.companyId, companyId),
        eq(issueRelations.type, "blocks"),
        eq(issueRelations.relatedIssueId, issueId),
        inArray(issues.id, ids),
      ),
    )
    .orderBy(asc(issues.title));
}

export function formatRuntimeWorkspaceWarningLog(warning: string) {
  return {
    stream: "stdout" as const,
    chunk: `[paperclip] ${warning}\n`,
  };
}

function describeSessionResetReason(
  contextSnapshot: Record<string, unknown> | null | undefined,
) {
  if (contextSnapshot?.forceFreshSession === true) return "forceFreshSession was requested";

  const wakeReason = readNonEmptyString(contextSnapshot?.wakeReason);
  if (wakeReason === "issue_assigned") return "wake reason is issue_assigned";
  if (wakeReason === "execution_review_requested") return "wake reason is execution_review_requested";
  if (wakeReason === "execution_approval_requested") return "wake reason is execution_approval_requested";
  if (wakeReason === "execution_changes_requested") return "wake reason is execution_changes_requested";
  return null;
}

function shouldAutoCheckoutIssueForWake(input: {
  contextSnapshot: Record<string, unknown> | null | undefined;
  issueStatus: string | null;
  issueAssigneeAgentId: string | null;
  isDependencyReady: boolean;
  agentId: string;
}) {
  if (input.issueAssigneeAgentId !== input.agentId) return false;
  if (!input.isDependencyReady) return false;

  const issueStatus = readNonEmptyString(input.issueStatus);
  if (
    issueStatus !== "todo" &&
    issueStatus !== "backlog" &&
    issueStatus !== "blocked" &&
    issueStatus !== "in_progress"
  ) {
    return false;
  }

  const wakeReason = readNonEmptyString(input.contextSnapshot?.wakeReason);
  if (!wakeReason) return false;
  if (wakeReason === "issue_comment_mentioned") return false;
  if (wakeReason.startsWith("execution_")) return false;

  return true;
}

function shouldQueueFollowupForRunningIssueWake(input: {
  contextSnapshot: Record<string, unknown> | null | undefined;
  wakeCommentId: string | null;
}) {
  if (input.wakeCommentId) return true;
  const wakeReason = readNonEmptyString(input.contextSnapshot?.wakeReason);
  return Boolean(wakeReason && RUNNING_ISSUE_WAKE_REASONS_REQUIRING_FOLLOWUP.has(wakeReason));
}

function isCheckoutConflictError(error: unknown): boolean {
  return error instanceof HttpError && error.status === 409 && error.message === "Issue checkout conflict";
}

function deriveCommentId(
  contextSnapshot: Record<string, unknown> | null | undefined,
  payload: Record<string, unknown> | null | undefined,
) {
  const batchedCommentId = extractWakeCommentIds(contextSnapshot).at(-1);
  return (
    batchedCommentId ??
    readNonEmptyString(contextSnapshot?.wakeCommentId) ??
    readNonEmptyString(contextSnapshot?.commentId) ??
    readNonEmptyString(payload?.commentId) ??
    null
  );
}

export function extractWakeCommentIds(
  contextSnapshot: Record<string, unknown> | null | undefined,
): string[] {
  const raw = contextSnapshot?.[WAKE_COMMENT_IDS_KEY];
  if (!Array.isArray(raw)) return [];
  const out: string[] = [];
  for (const entry of raw) {
    const value = readNonEmptyString(entry);
    if (!value || out.includes(value)) continue;
    out.push(value);
  }
  return out;
}

function mergeWakeCommentIds(...values: Array<unknown>): string[] {
  const merged: string[] = [];
  const append = (value: unknown) => {
    const normalized = readNonEmptyString(value);
    if (!normalized || merged.includes(normalized)) return;
    merged.push(normalized);
  };

  for (const value of values) {
    if (Array.isArray(value)) {
      for (const entry of value) append(entry);
      continue;
    }
    if (typeof value === "object" && value !== null) {
      const candidate = value as Record<string, unknown>;
      const batched = extractWakeCommentIds(candidate);
      if (batched.length > 0) {
        for (const entry of batched) append(entry);
        continue;
      }
      append(candidate.wakeCommentId);
      append(candidate.commentId);
      continue;
    }
    append(value);
  }

  return merged;
}

function enrichWakeContextSnapshot(input: {
  contextSnapshot: Record<string, unknown>;
  reason: string | null;
  source: WakeupOptions["source"];
  triggerDetail: WakeupOptions["triggerDetail"] | null;
  payload: Record<string, unknown> | null;
}) {
  const { contextSnapshot, reason, source, triggerDetail, payload } = input;
  const issueIdFromPayload = readNonEmptyString(payload?.["issueId"]);
  const commentIdFromPayload = readNonEmptyString(payload?.["commentId"]);
  const taskKey = deriveTaskKey(contextSnapshot, payload);
  const wakeCommentId = deriveCommentId(contextSnapshot, payload);
  const wakeCommentIds = mergeWakeCommentIds(contextSnapshot, commentIdFromPayload);

  if (!readNonEmptyString(contextSnapshot["wakeReason"]) && reason) {
    contextSnapshot.wakeReason = reason;
  }
  if (!readNonEmptyString(contextSnapshot["issueId"]) && issueIdFromPayload) {
    contextSnapshot.issueId = issueIdFromPayload;
  }
  if (!readNonEmptyString(contextSnapshot["taskId"]) && issueIdFromPayload) {
    contextSnapshot.taskId = issueIdFromPayload;
  }
  if (!readNonEmptyString(contextSnapshot["taskKey"]) && taskKey) {
    contextSnapshot.taskKey = taskKey;
  }
  if (!readNonEmptyString(contextSnapshot["commentId"]) && commentIdFromPayload) {
    contextSnapshot.commentId = commentIdFromPayload;
  }
  if (wakeCommentIds.length > 0) {
    const latestCommentId = wakeCommentIds[wakeCommentIds.length - 1];
    contextSnapshot[WAKE_COMMENT_IDS_KEY] = wakeCommentIds;
    contextSnapshot.commentId = latestCommentId;
    contextSnapshot.wakeCommentId = latestCommentId;
    // Once comment ids are normalized into the snapshot, rebuild the structured
    // wake payload from those ids later instead of carrying forward stale data.
    delete contextSnapshot[PAPERCLIP_WAKE_PAYLOAD_KEY];
  } else if (!readNonEmptyString(contextSnapshot["wakeCommentId"]) && wakeCommentId) {
    contextSnapshot.wakeCommentId = wakeCommentId;
  }
  if (!readNonEmptyString(contextSnapshot["wakeSource"]) && source) {
    contextSnapshot.wakeSource = source;
  }
  if (!readNonEmptyString(contextSnapshot["wakeTriggerDetail"]) && triggerDetail) {
    contextSnapshot.wakeTriggerDetail = triggerDetail;
  }

  return {
    contextSnapshot,
    issueIdFromPayload,
    commentIdFromPayload,
    taskKey,
    wakeCommentId,
  };
}

export function mergeCoalescedContextSnapshot(
  existingRaw: unknown,
  incoming: Record<string, unknown>,
) {
  const existing = parseObject(existingRaw);
  const merged: Record<string, unknown> = {
    ...existing,
    ...incoming,
  };
  const mergedCommentIds = mergeWakeCommentIds(existing, incoming);
  if (mergedCommentIds.length > 0) {
    const latestCommentId = mergedCommentIds[mergedCommentIds.length - 1];
    merged[WAKE_COMMENT_IDS_KEY] = mergedCommentIds;
    merged.commentId = latestCommentId;
    merged.wakeCommentId = latestCommentId;
    // The merged context should carry canonical comment ids; the next wake will
    // regenerate any structured payload from those ids.
    delete merged[PAPERCLIP_WAKE_PAYLOAD_KEY];
  }
  return merged;
}

async function buildPaperclipWakePayload(input: {
  db: Db;
  companyId: string;
  contextSnapshot: Record<string, unknown>;
  continuationSummary?:
    | {
        key: string;
        title: string | null;
        body: string;
        updatedAt: Date;
      }
    | null;
  issueSummary?:
    | {
        id: string;
        identifier: string | null;
        title: string;
        status: string;
        priority: string;
      }
    | null;
}) {
  const executionStage = parseObject(input.contextSnapshot.executionStage);
  const commentIds = extractWakeCommentIds(input.contextSnapshot);
  const issueId = readNonEmptyString(input.contextSnapshot.issueId);
  const continuationSummary = input.continuationSummary ?? null;
  const issueSummary =
    input.issueSummary ??
    (issueId
      ? await input.db
          .select({
            id: issues.id,
            identifier: issues.identifier,
            title: issues.title,
            status: issues.status,
            priority: issues.priority,
          })
          .from(issues)
          .where(and(eq(issues.id, issueId), eq(issues.companyId, input.companyId)))
          .then((rows) => rows[0] ?? null)
      : null);
  if (commentIds.length === 0 && Object.keys(executionStage).length === 0 && !issueSummary) return null;

  const commentRows =
    commentIds.length === 0
      ? []
      : await input.db
          .select({
            id: issueComments.id,
            issueId: issueComments.issueId,
            body: issueComments.body,
            authorAgentId: issueComments.authorAgentId,
            authorUserId: issueComments.authorUserId,
            createdAt: issueComments.createdAt,
          })
          .from(issueComments)
          .where(
            and(
              eq(issueComments.companyId, input.companyId),
              inArray(issueComments.id, commentIds),
            ),
          );

  const commentsById = new Map(commentRows.map((comment) => [comment.id, comment]));
  const comments: Array<Record<string, unknown>> = [];
  let remainingBodyChars = MAX_INLINE_WAKE_COMMENT_BODY_TOTAL_CHARS;
  let truncated = false;
  let missingCommentCount = 0;

  for (const commentId of commentIds) {
    const row = commentsById.get(commentId);
    if (!row) {
      truncated = true;
      missingCommentCount += 1;
      continue;
    }
    if (comments.length >= MAX_INLINE_WAKE_COMMENTS) {
      truncated = true;
      break;
    }

    const fullBody = row.body;
    const allowedBodyChars = Math.min(MAX_INLINE_WAKE_COMMENT_BODY_CHARS, remainingBodyChars);
    if (allowedBodyChars <= 0) {
      truncated = true;
      break;
    }

    const body = fullBody.length > allowedBodyChars ? fullBody.slice(0, allowedBodyChars) : fullBody;
    const bodyTruncated = body.length < fullBody.length;
    if (bodyTruncated) truncated = true;
    remainingBodyChars -= body.length;

    comments.push({
      id: row.id,
      issueId: row.issueId,
      body,
      bodyTruncated,
      createdAt: row.createdAt.toISOString(),
      author: row.authorAgentId
        ? { type: "agent", id: row.authorAgentId }
        : row.authorUserId
          ? { type: "user", id: row.authorUserId }
          : { type: "system", id: null },
    });
  }

  return {
    reason: readNonEmptyString(input.contextSnapshot.wakeReason),
    issue: issueSummary
      ? {
          id: issueSummary.id,
          identifier: issueSummary.identifier,
          title: issueSummary.title,
          status: issueSummary.status,
          priority: issueSummary.priority,
        }
      : null,
    childIssueSummaries: Array.isArray(input.contextSnapshot.childIssueSummaries)
      ? input.contextSnapshot.childIssueSummaries
      : [],
    childIssueSummaryTruncated: input.contextSnapshot.childIssueSummaryTruncated === true,
    livenessContinuation: readNonEmptyString(input.contextSnapshot.livenessContinuationState) ||
      readNonEmptyString(input.contextSnapshot.livenessContinuationInstruction) ||
      readNonEmptyString(input.contextSnapshot.livenessContinuationSourceRunId) ||
      typeof input.contextSnapshot.livenessContinuationAttempt === "number"
      ? {
          attempt: input.contextSnapshot.livenessContinuationAttempt,
          maxAttempts: input.contextSnapshot.livenessContinuationMaxAttempts,
          sourceRunId: readNonEmptyString(input.contextSnapshot.livenessContinuationSourceRunId),
          state: readNonEmptyString(input.contextSnapshot.livenessContinuationState),
          reason: readNonEmptyString(input.contextSnapshot.livenessContinuationReason),
          instruction: readNonEmptyString(input.contextSnapshot.livenessContinuationInstruction),
        }
      : null,
    checkedOutByHarness: input.contextSnapshot[PAPERCLIP_HARNESS_CHECKOUT_KEY] === true,
    dependencyBlockedInteraction: input.contextSnapshot.dependencyBlockedInteraction === true,
    treeHoldInteraction: input.contextSnapshot.treeHoldInteraction === true,
    activeTreeHold: parseObject(input.contextSnapshot.activeTreeHold),
    unresolvedBlockerIssueIds: Array.isArray(input.contextSnapshot.unresolvedBlockerIssueIds)
      ? input.contextSnapshot.unresolvedBlockerIssueIds.filter((value): value is string => typeof value === "string" && value.length > 0)
      : [],
    unresolvedBlockerSummaries: Array.isArray(input.contextSnapshot.unresolvedBlockerSummaries)
      ? input.contextSnapshot.unresolvedBlockerSummaries
      : [],
    executionStage: Object.keys(executionStage).length > 0 ? executionStage : null,
    continuationSummary: continuationSummary
      ? {
          key: continuationSummary.key,
          title: continuationSummary.title,
          body:
            continuationSummary.body.length > 4_000
              ? continuationSummary.body.slice(0, 4_000)
              : continuationSummary.body,
          bodyTruncated: continuationSummary.body.length > 4_000,
          updatedAt: continuationSummary.updatedAt.toISOString(),
        }
      : null,
    commentIds,
    latestCommentId: commentIds[commentIds.length - 1] ?? null,
    comments,
    commentWindow: {
      requestedCount: commentIds.length,
      includedCount: comments.length,
      missingCount: missingCommentCount,
    },
    truncated,
    fallbackFetchNeeded: truncated || missingCommentCount > 0,
  };
}

function runTaskKey(run: typeof heartbeatRuns.$inferSelect) {
  return deriveTaskKey(run.contextSnapshot as Record<string, unknown> | null, null);
}

function isSameTaskScope(left: string | null, right: string | null) {
  return (left ?? null) === (right ?? null);
}

function isTrackedLocalChildProcessAdapter(adapterType: string) {
  return SESSIONED_LOCAL_ADAPTERS.has(adapterType);
}

function isHeartbeatRunTerminalStatus(
  status: string | null | undefined,
): status is (typeof HEARTBEAT_RUN_TERMINAL_STATUSES)[number] {
  return HEARTBEAT_RUN_TERMINAL_STATUSES.includes(
    status as (typeof HEARTBEAT_RUN_TERMINAL_STATUSES)[number],
  );
}

// A positive liveness check means some process currently owns the PID.
// On Linux, PIDs can be recycled, so this is a best-effort signal rather
// than proof that the original child is still alive.
function isProcessAlive(pid: number | null | undefined) {
  if (typeof pid !== "number" || !Number.isInteger(pid) || pid <= 0) return false;
  try {
    process.kill(pid, 0);
    return true;
  } catch (error) {
    const code = (error as NodeJS.ErrnoException | undefined)?.code;
    if (code === "EPERM") return true;
    if (code === "ESRCH") return false;
    return false;
  }
}

async function terminateHeartbeatRunProcess(input: {
  pid: number | null | undefined;
  processGroupId: number | null | undefined;
  graceMs?: number;
}) {
  const pid = input.pid ?? null;
  const processGroupId = input.processGroupId ?? null;
  if (typeof pid !== "number" && typeof processGroupId !== "number") return;

  await terminateLocalService(
    {
      pid:
        typeof pid === "number" && Number.isInteger(pid) && pid > 0
          ? pid
          : (processGroupId ?? 0),
      processGroupId:
        typeof processGroupId === "number" && Number.isInteger(processGroupId) && processGroupId > 0
          ? processGroupId
          : null,
    },
    input.graceMs ? { forceAfterMs: input.graceMs } : undefined,
  );
}

function buildProcessLossMessage(run: {
  processPid: number | null;
  processGroupId: number | null;
}, options?: { descendantOnly?: boolean }) {
  if (options?.descendantOnly && run.processGroupId) {
    return `Process lost -- parent pid ${run.processPid ?? "unknown"} exited, but descendant process group ${run.processGroupId} was still alive and was terminated`;
  }
  if (run.processPid) {
    return `Process lost -- child pid ${run.processPid} is no longer running`;
  }
  if (run.processGroupId) {
    return `Process lost -- process group ${run.processGroupId} is no longer running`;
  }
  return "Process lost -- server may have restarted";
}

function truncateDisplayId(value: string | null | undefined, max = 128) {
  if (!value) return null;
  return value.length > max ? value.slice(0, max) : value;
}

function normalizeAgentNameKey(value: string | null | undefined) {
  if (typeof value !== "string") return null;
  const normalized = value.trim().toLowerCase();
  return normalized.length > 0 ? normalized : null;
}

const defaultSessionCodec: AdapterSessionCodec = {
  deserialize(raw: unknown) {
    const asObj = parseObject(raw);
    if (Object.keys(asObj).length > 0) return asObj;
    const sessionId = readNonEmptyString((raw as Record<string, unknown> | null)?.sessionId);
    if (sessionId) return { sessionId };
    return null;
  },
  serialize(params: Record<string, unknown> | null) {
    if (!params || Object.keys(params).length === 0) return null;
    return params;
  },
  getDisplayId(params: Record<string, unknown> | null) {
    return readNonEmptyString(params?.sessionId);
  },
};

function getAdapterSessionCodec(adapterType: string) {
  const adapter = getServerAdapter(adapterType);
  return adapter.sessionCodec ?? defaultSessionCodec;
}

function normalizeSessionParams(params: Record<string, unknown> | null | undefined) {
  if (!params) return null;
  return Object.keys(params).length > 0 ? params : null;
}

function resolveNextSessionState(input: {
  codec: AdapterSessionCodec;
  adapterResult: AdapterExecutionResult;
  previousParams: Record<string, unknown> | null;
  previousDisplayId: string | null;
  previousLegacySessionId: string | null;
}) {
  const { codec, adapterResult, previousParams, previousDisplayId, previousLegacySessionId } = input;

  if (adapterResult.clearSession) {
    return {
      params: null as Record<string, unknown> | null,
      displayId: null as string | null,
      legacySessionId: null as string | null,
    };
  }

  const explicitParams = adapterResult.sessionParams;
  const hasExplicitParams = adapterResult.sessionParams !== undefined;
  const hasExplicitSessionId = adapterResult.sessionId !== undefined;
  const explicitSessionId = readNonEmptyString(adapterResult.sessionId);
  const hasExplicitDisplay = adapterResult.sessionDisplayId !== undefined;
  const explicitDisplayId = readNonEmptyString(adapterResult.sessionDisplayId);
  const shouldUsePrevious = !hasExplicitParams && !hasExplicitSessionId && !hasExplicitDisplay;

  const candidateParams =
    hasExplicitParams
      ? explicitParams
      : hasExplicitSessionId
        ? (explicitSessionId ? { sessionId: explicitSessionId } : null)
        : previousParams;

  const serialized = normalizeSessionParams(codec.serialize(normalizeSessionParams(candidateParams) ?? null));
  const deserialized = normalizeSessionParams(codec.deserialize(serialized));

  const displayId = truncateDisplayId(
    explicitDisplayId ??
      (codec.getDisplayId ? codec.getDisplayId(deserialized) : null) ??
      readNonEmptyString(deserialized?.sessionId) ??
      (shouldUsePrevious ? previousDisplayId : null) ??
      explicitSessionId ??
      (shouldUsePrevious ? previousLegacySessionId : null),
  );

  const legacySessionId =
    explicitSessionId ??
    readNonEmptyString(deserialized?.sessionId) ??
    displayId ??
    (shouldUsePrevious ? previousLegacySessionId : null);

  return {
    params: serialized,
    displayId,
    legacySessionId,
  };
}

export function heartbeatService(db: Db) {
  const instanceSettings = instanceSettingsService(db);
  const getCurrentUserRedactionOptions = async () => ({
    enabled: (await instanceSettings.getGeneral()).censorUsernameInLogs,
  });

  const runLogStore = getRunLogStore();
  const secretsSvc = secretService(db);
  const companySkills = companySkillService(db);
  const issuesSvc = issueService(db);
  const treeControlSvc = issueTreeControlService(db);
  const executionWorkspacesSvc = executionWorkspaceService(db);
  const environmentsSvc = environmentService(db);
  const workspaceOperationsSvc = workspaceOperationService(db);
  const activeRunExecutions = new Set<string>();
  const budgetHooks = {
    cancelWorkForScope: cancelBudgetScopeWork,
  };
  const budgets = budgetService(db, budgetHooks);
  let unsafeTextProjectionPromise: Promise<boolean> | null = null;

  async function hasUnsafeTextProjectionDatabase() {
    if (!unsafeTextProjectionPromise) {
      unsafeTextProjectionPromise = db
        .execute(sql`select current_setting('server_encoding') as server_encoding`)
        .then((rows) => {
          const first = Array.isArray(rows) ? rows[0] : null;
          const serverEncoding = typeof first === "object" && first !== null
            ? (first as Record<string, unknown>).server_encoding
            : null;
          return typeof serverEncoding === "string" && serverEncoding.toUpperCase() === "SQL_ASCII";
        })
        .catch((err) => {
          logger.warn({ err }, "failed to inspect database server encoding; using conservative heartbeat result projection");
          return true;
        });
    }
    return unsafeTextProjectionPromise;
  }

  async function getAgent(agentId: string) {
    return db
      .select()
      .from(agents)
      .where(eq(agents.id, agentId))
      .then((rows) => rows[0] ?? null);
  }

  async function getRun(runId: string, opts?: { unsafeFullResultJson?: boolean }) {
    const safeForLegacyEncoding = !opts?.unsafeFullResultJson && await hasUnsafeTextProjectionDatabase();
    return db
      .select(
        opts?.unsafeFullResultJson
          ? getTableColumns(heartbeatRuns)
          : safeForLegacyEncoding
            ? heartbeatRunSqlAsciiSafeColumns
            : heartbeatRunSafeColumns,
      )
      .from(heartbeatRuns)
      .where(eq(heartbeatRuns.id, runId))
      .then((rows) => rows[0] ?? null);
  }

  async function getRunLogAccess(runId: string) {
    return db
      .select(heartbeatRunLogAccessColumns)
      .from(heartbeatRuns)
      .where(eq(heartbeatRuns.id, runId))
      .then((rows) => rows[0] ?? null);
  }

  async function getIssueExecutionContext(companyId: string, issueId: string) {
    return db
      .select({
        id: issues.id,
        identifier: issues.identifier,
        title: issues.title,
        status: issues.status,
        priority: issues.priority,
        projectId: issues.projectId,
        projectWorkspaceId: issues.projectWorkspaceId,
        executionWorkspaceId: issues.executionWorkspaceId,
        executionWorkspacePreference: issues.executionWorkspacePreference,
        assigneeAgentId: issues.assigneeAgentId,
        assigneeAdapterOverrides: issues.assigneeAdapterOverrides,
        executionWorkspaceSettings: issues.executionWorkspaceSettings,
      })
      .from(issues)
      .where(and(eq(issues.id, issueId), eq(issues.companyId, companyId)))
      .then((rows) => rows[0] ?? null);
  }

  async function getRuntimeState(agentId: string) {
    return db
      .select()
      .from(agentRuntimeState)
      .where(eq(agentRuntimeState.agentId, agentId))
      .then((rows) => rows[0] ?? null);
  }

  async function getTaskSession(
    companyId: string,
    agentId: string,
    adapterType: string,
    taskKey: string,
  ) {
    return db
      .select()
      .from(agentTaskSessions)
      .where(
        and(
          eq(agentTaskSessions.companyId, companyId),
          eq(agentTaskSessions.agentId, agentId),
          eq(agentTaskSessions.adapterType, adapterType),
          eq(agentTaskSessions.taskKey, taskKey),
        ),
      )
      .then((rows) => rows[0] ?? null);
  }

  async function getLatestRunForSession(
    agentId: string,
    sessionId: string,
    opts?: { excludeRunId?: string | null },
  ) {
    const conditions = [
      eq(heartbeatRuns.agentId, agentId),
      eq(heartbeatRuns.sessionIdAfter, sessionId),
    ];
    if (opts?.excludeRunId) {
      conditions.push(sql`${heartbeatRuns.id} <> ${opts.excludeRunId}`);
    }
    return db
      .select({
        id: heartbeatRuns.id,
        usageJson: heartbeatRuns.usageJson,
      })
      .from(heartbeatRuns)
      .where(and(...conditions))
      .orderBy(desc(heartbeatRuns.createdAt))
      .limit(1)
      .then((rows) => rows[0] ?? null);
  }

  async function getOldestRunForSession(agentId: string, sessionId: string) {
    return db
      .select({
        id: heartbeatRuns.id,
        createdAt: heartbeatRuns.createdAt,
      })
      .from(heartbeatRuns)
      .where(and(eq(heartbeatRuns.agentId, agentId), eq(heartbeatRuns.sessionIdAfter, sessionId)))
      .orderBy(asc(heartbeatRuns.createdAt), asc(heartbeatRuns.id))
      .limit(1)
      .then((rows) => rows[0] ?? null);
  }

  async function resolveNormalizedUsageForSession(input: {
    agentId: string;
    runId: string;
    sessionId: string | null;
    rawUsage: UsageTotals | null;
  }) {
    const { agentId, runId, sessionId, rawUsage } = input;
    if (!sessionId || !rawUsage) {
      return {
        normalizedUsage: rawUsage,
        previousRawUsage: null as UsageTotals | null,
        derivedFromSessionTotals: false,
      };
    }

    const previousRun = await getLatestRunForSession(agentId, sessionId, { excludeRunId: runId });
    const previousRawUsage = readRawUsageTotals(previousRun?.usageJson);
    return {
      normalizedUsage: deriveNormalizedUsageDelta(rawUsage, previousRawUsage),
      previousRawUsage,
      derivedFromSessionTotals: previousRawUsage !== null,
    };
  }

  async function evaluateSessionCompaction(input: {
    agent: typeof agents.$inferSelect;
    sessionId: string | null;
    issueId: string | null;
    continuationSummaryBody?: string | null;
  }): Promise<SessionCompactionDecision> {
    const { agent, sessionId, issueId } = input;
    if (!sessionId) {
      return {
        rotate: false,
        reason: null,
        handoffMarkdown: null,
        previousRunId: null,
      };
    }

    const policy = parseSessionCompactionPolicy(agent);
    if (!policy.enabled || !hasSessionCompactionThresholds(policy)) {
      return {
        rotate: false,
        reason: null,
        handoffMarkdown: null,
        previousRunId: null,
      };
    }

    const fetchLimit = Math.max(policy.maxSessionRuns > 0 ? policy.maxSessionRuns + 1 : 0, 4);
    const runs = await db
      .select({
        id: heartbeatRuns.id,
        createdAt: heartbeatRuns.createdAt,
        usageJson: heartbeatRuns.usageJson,
        error: heartbeatRuns.error,
        ...heartbeatRunListResultColumns,
      })
      .from(heartbeatRuns)
      .where(and(eq(heartbeatRuns.agentId, agent.id), eq(heartbeatRuns.sessionIdAfter, sessionId)))
      .orderBy(desc(heartbeatRuns.createdAt))
      .limit(fetchLimit);

    if (runs.length === 0) {
      return {
        rotate: false,
        reason: null,
        handoffMarkdown: null,
        previousRunId: null,
      };
    }

    const latestRun = runs[0] ?? null;
    const oldestRun =
      policy.maxSessionAgeHours > 0
        ? await getOldestRunForSession(agent.id, sessionId)
        : runs[runs.length - 1] ?? latestRun;
    const latestRawUsage = readRawUsageTotals(latestRun?.usageJson);
    const sessionAgeHours =
      latestRun && oldestRun
        ? Math.max(
            0,
            (new Date(latestRun.createdAt).getTime() - new Date(oldestRun.createdAt).getTime()) / (1000 * 60 * 60),
          )
        : 0;

    let reason: string | null = null;
    if (policy.maxSessionRuns > 0 && runs.length > policy.maxSessionRuns) {
      reason = `session exceeded ${policy.maxSessionRuns} runs`;
    } else if (
      policy.maxRawInputTokens > 0 &&
      latestRawUsage &&
      latestRawUsage.inputTokens >= policy.maxRawInputTokens
    ) {
      reason =
        `session raw input reached ${formatCount(latestRawUsage.inputTokens)} tokens ` +
        `(threshold ${formatCount(policy.maxRawInputTokens)})`;
    } else if (policy.maxSessionAgeHours > 0 && sessionAgeHours >= policy.maxSessionAgeHours) {
      reason = `session age reached ${Math.floor(sessionAgeHours)} hours`;
    }

    if (!reason || !latestRun) {
      return {
        rotate: false,
        reason: null,
        handoffMarkdown: null,
        previousRunId: latestRun?.id ?? null,
      };
    }

    const latestSummary = summarizeHeartbeatRunListResultJson({
      summary: latestRun?.resultSummary,
      result: latestRun?.resultResult,
      message: latestRun?.resultMessage,
      error: latestRun?.resultError,
      totalCostUsd: latestRun?.resultTotalCostUsd,
      costUsd: latestRun?.resultCostUsd,
      costUsdCamel: latestRun?.resultCostUsdCamel,
    });
    const latestTextSummary =
      readNonEmptyString(latestSummary?.summary) ??
      readNonEmptyString(latestSummary?.result) ??
      readNonEmptyString(latestSummary?.message) ??
      readNonEmptyString(latestRun.error);

    const handoffMarkdown = [
      "Paperclip session handoff:",
      `- Previous session: ${sessionId}`,
      issueId ? `- Issue: ${issueId}` : "",
      `- Rotation reason: ${reason}`,
      latestTextSummary ? `- Last run summary: ${latestTextSummary}` : "",
      input.continuationSummaryBody
        ? `- Issue continuation summary: ${input.continuationSummaryBody.slice(0, 1_500)}`
        : "",
      "Continue from the current task state. Rebuild only the minimum context you need.",
    ]
      .filter(Boolean)
      .join("\n");

    return {
      rotate: true,
      reason,
      handoffMarkdown,
      previousRunId: latestRun.id,
    };
  }

  async function resolveSessionBeforeForWakeup(
    agent: typeof agents.$inferSelect,
    taskKey: string | null,
  ) {
    if (taskKey) {
      const codec = getAdapterSessionCodec(agent.adapterType);
      const existingTaskSession = await getTaskSession(
        agent.companyId,
        agent.id,
        agent.adapterType,
        taskKey,
      );
      const parsedParams = normalizeSessionParams(
        codec.deserialize(existingTaskSession?.sessionParamsJson ?? null),
      );
      return truncateDisplayId(
        existingTaskSession?.sessionDisplayId ??
          (codec.getDisplayId ? codec.getDisplayId(parsedParams) : null) ??
          readNonEmptyString(parsedParams?.sessionId),
      );
    }

    const runtimeForRun = await getRuntimeState(agent.id);
    return runtimeForRun?.sessionId ?? null;
  }

  async function resolveExplicitResumeSessionOverride(
    agent: typeof agents.$inferSelect,
    payload: Record<string, unknown> | null,
    taskKey: string | null,
  ) {
    const resumeFromRunId = readNonEmptyString(payload?.resumeFromRunId);
    if (!resumeFromRunId) return null;

    const resumeRun = await db
      .select({
        id: heartbeatRuns.id,
        contextSnapshot: heartbeatRuns.contextSnapshot,
        sessionIdBefore: heartbeatRuns.sessionIdBefore,
        sessionIdAfter: heartbeatRuns.sessionIdAfter,
      })
      .from(heartbeatRuns)
      .where(
        and(
          eq(heartbeatRuns.id, resumeFromRunId),
          eq(heartbeatRuns.companyId, agent.companyId),
          eq(heartbeatRuns.agentId, agent.id),
        ),
      )
      .then((rows) => rows[0] ?? null);
    if (!resumeRun) return null;

    const resumeContext = parseObject(resumeRun.contextSnapshot);
    const resumeTaskKey = deriveTaskKey(resumeContext, null) ?? taskKey;
    const resumeTaskSession = resumeTaskKey
      ? await getTaskSession(agent.companyId, agent.id, agent.adapterType, resumeTaskKey)
      : null;
    const sessionCodec = getAdapterSessionCodec(agent.adapterType);
    const sessionOverride = buildExplicitResumeSessionOverride({
      resumeFromRunId,
      resumeRunSessionIdBefore: resumeRun.sessionIdBefore,
      resumeRunSessionIdAfter: resumeRun.sessionIdAfter,
      taskSession: resumeTaskSession,
      sessionCodec,
    });
    if (!sessionOverride) return null;

    return {
      resumeFromRunId,
      taskKey: resumeTaskKey,
      issueId: readNonEmptyString(resumeContext.issueId),
      taskId: readNonEmptyString(resumeContext.taskId) ?? readNonEmptyString(resumeContext.issueId),
      sessionDisplayId: sessionOverride.sessionDisplayId,
      sessionParams: sessionOverride.sessionParams,
    };
  }

  async function resolveWorkspaceForRun(
    agent: typeof agents.$inferSelect,
    context: Record<string, unknown>,
    previousSessionParams: Record<string, unknown> | null,
    opts?: { useProjectWorkspace?: boolean | null },
  ): Promise<ResolvedWorkspaceForRun> {
    const issueId = readNonEmptyString(context.issueId);
    const contextProjectId = readNonEmptyString(context.projectId);
    const contextProjectWorkspaceId = readNonEmptyString(context.projectWorkspaceId);
    const issueProjectRef = issueId
      ? await db
          .select({
            projectId: issues.projectId,
            projectWorkspaceId: issues.projectWorkspaceId,
          })
          .from(issues)
          .where(and(eq(issues.id, issueId), eq(issues.companyId, agent.companyId)))
          .then((rows) => rows[0] ?? null)
      : null;
    const issueProjectId = issueProjectRef?.projectId ?? null;
    const preferredProjectWorkspaceId =
      issueProjectRef?.projectWorkspaceId ?? contextProjectWorkspaceId ?? null;
    const resolvedProjectId = issueProjectId ?? contextProjectId;
    const useProjectWorkspace = opts?.useProjectWorkspace !== false;
    const workspaceProjectId = useProjectWorkspace ? resolvedProjectId : null;

    const unorderedProjectWorkspaceRows = workspaceProjectId
      ? await db
          .select()
          .from(projectWorkspaces)
          .where(
            and(
              eq(projectWorkspaces.companyId, agent.companyId),
              eq(projectWorkspaces.projectId, workspaceProjectId),
            ),
          )
          .orderBy(asc(projectWorkspaces.createdAt), asc(projectWorkspaces.id))
      : [];
    const projectWorkspaceRows = prioritizeProjectWorkspaceCandidatesForRun(
      unorderedProjectWorkspaceRows,
      preferredProjectWorkspaceId,
    );

    const workspaceHints = projectWorkspaceRows.map((workspace) => ({
      workspaceId: workspace.id,
      cwd: readNonEmptyString(workspace.cwd),
      repoUrl: readNonEmptyString(workspace.repoUrl),
      repoRef: readNonEmptyString(workspace.repoRef),
    }));

    if (projectWorkspaceRows.length > 0) {
      const preferredWorkspace = preferredProjectWorkspaceId
        ? projectWorkspaceRows.find((workspace) => workspace.id === preferredProjectWorkspaceId) ?? null
        : null;
      const missingProjectCwds: string[] = [];
      let hasConfiguredProjectCwd = false;
      let preferredWorkspaceWarning: string | null = null;
      if (preferredProjectWorkspaceId && !preferredWorkspace) {
        preferredWorkspaceWarning =
          `Selected project workspace "${preferredProjectWorkspaceId}" is not available on this project.`;
      }
      for (const workspace of projectWorkspaceRows) {
        let projectCwd = readNonEmptyString(workspace.cwd);
        let managedWorkspaceWarning: string | null = null;
        if (!projectCwd || projectCwd === REPO_ONLY_CWD_SENTINEL) {
          try {
            const managedWorkspace = await ensureManagedProjectWorkspace({
              companyId: agent.companyId,
              projectId: workspaceProjectId ?? resolvedProjectId ?? workspace.projectId,
              repoUrl: readNonEmptyString(workspace.repoUrl),
            });
            projectCwd = managedWorkspace.cwd;
            managedWorkspaceWarning = managedWorkspace.warning;
          } catch (error) {
            if (preferredWorkspace?.id === workspace.id) {
              preferredWorkspaceWarning = error instanceof Error ? error.message : String(error);
            }
            continue;
          }
        }
        hasConfiguredProjectCwd = true;
        const projectCwdExists = await fs
          .stat(projectCwd)
          .then((stats) => stats.isDirectory())
          .catch(() => false);
        if (projectCwdExists) {
          return {
            cwd: projectCwd,
            source: "project_primary" as const,
            projectId: resolvedProjectId,
            workspaceId: workspace.id,
            repoUrl: workspace.repoUrl,
            repoRef: workspace.repoRef,
            workspaceHints,
            warnings: [preferredWorkspaceWarning, managedWorkspaceWarning].filter(
              (value): value is string => Boolean(value),
            ),
          };
        }
        if (preferredWorkspace?.id === workspace.id) {
          preferredWorkspaceWarning =
            `Selected project workspace path "${projectCwd}" is not available yet.`;
        }
        missingProjectCwds.push(projectCwd);
      }

      const fallbackCwd = resolveDefaultAgentWorkspaceDir(agent.id);
      await fs.mkdir(fallbackCwd, { recursive: true });
      const warnings: string[] = [];
      if (preferredWorkspaceWarning) {
        warnings.push(preferredWorkspaceWarning);
      }
      if (missingProjectCwds.length > 0) {
        const firstMissing = missingProjectCwds[0];
        const extraMissingCount = Math.max(0, missingProjectCwds.length - 1);
        warnings.push(
          extraMissingCount > 0
            ? `Project workspace path "${firstMissing}" and ${extraMissingCount} other configured path(s) are not available yet. Using fallback workspace "${fallbackCwd}" for this run.`
            : `Project workspace path "${firstMissing}" is not available yet. Using fallback workspace "${fallbackCwd}" for this run.`,
        );
      } else if (!hasConfiguredProjectCwd) {
        warnings.push(
          `Project workspace has no local cwd configured. Using fallback workspace "${fallbackCwd}" for this run.`,
        );
      }
      return {
        cwd: fallbackCwd,
        source: "project_primary" as const,
        projectId: resolvedProjectId,
        workspaceId: projectWorkspaceRows[0]?.id ?? null,
        repoUrl: projectWorkspaceRows[0]?.repoUrl ?? null,
        repoRef: projectWorkspaceRows[0]?.repoRef ?? null,
        workspaceHints,
        warnings,
      };
    }

    if (workspaceProjectId) {
      const managedWorkspace = await ensureManagedProjectWorkspace({
        companyId: agent.companyId,
        projectId: workspaceProjectId,
        repoUrl: null,
      });
      return {
        cwd: managedWorkspace.cwd,
        source: "project_primary" as const,
        projectId: resolvedProjectId,
        workspaceId: null,
        repoUrl: null,
        repoRef: null,
        workspaceHints,
        warnings: managedWorkspace.warning ? [managedWorkspace.warning] : [],
      };
    }

    const sessionCwd = readNonEmptyString(previousSessionParams?.cwd);
    if (sessionCwd) {
      const sessionCwdExists = await fs
        .stat(sessionCwd)
        .then((stats) => stats.isDirectory())
        .catch(() => false);
      if (sessionCwdExists) {
        return {
          cwd: sessionCwd,
          source: "task_session" as const,
          projectId: resolvedProjectId,
          workspaceId: readNonEmptyString(previousSessionParams?.workspaceId),
          repoUrl: readNonEmptyString(previousSessionParams?.repoUrl),
          repoRef: readNonEmptyString(previousSessionParams?.repoRef),
          workspaceHints,
          warnings: [],
        };
      }
    }

    const cwd = resolveDefaultAgentWorkspaceDir(agent.id);
    await fs.mkdir(cwd, { recursive: true });
    const warnings: string[] = [];
    if (sessionCwd) {
      warnings.push(
        `Saved session workspace "${sessionCwd}" is not available. Using fallback workspace "${cwd}" for this run.`,
      );
    } else if (resolvedProjectId) {
      warnings.push(
        `No project workspace directory is currently available for this issue. Using fallback workspace "${cwd}" for this run.`,
      );
    } else {
      warnings.push(
        `No project or prior session workspace was available. Using fallback workspace "${cwd}" for this run.`,
      );
    }
    return {
      cwd,
      source: "agent_home" as const,
      projectId: resolvedProjectId,
      workspaceId: null,
      repoUrl: null,
      repoRef: null,
      workspaceHints,
      warnings,
    };
  }

  async function upsertTaskSession(input: {
    companyId: string;
    agentId: string;
    adapterType: string;
    taskKey: string;
    sessionParamsJson: Record<string, unknown> | null;
    sessionDisplayId: string | null;
    lastRunId: string | null;
    lastError: string | null;
  }) {
    const existing = await getTaskSession(
      input.companyId,
      input.agentId,
      input.adapterType,
      input.taskKey,
    );
    if (existing) {
      return db
        .update(agentTaskSessions)
        .set({
          sessionParamsJson: input.sessionParamsJson,
          sessionDisplayId: input.sessionDisplayId,
          lastRunId: input.lastRunId,
          lastError: input.lastError,
          updatedAt: new Date(),
        })
        .where(eq(agentTaskSessions.id, existing.id))
        .returning()
        .then((rows) => rows[0] ?? null);
    }

    return db
      .insert(agentTaskSessions)
      .values({
        companyId: input.companyId,
        agentId: input.agentId,
        adapterType: input.adapterType,
        taskKey: input.taskKey,
        sessionParamsJson: input.sessionParamsJson,
        sessionDisplayId: input.sessionDisplayId,
        lastRunId: input.lastRunId,
        lastError: input.lastError,
      })
      .returning()
      .then((rows) => rows[0] ?? null);
  }

  async function clearTaskSessions(
    companyId: string,
    agentId: string,
    opts?: { taskKey?: string | null; adapterType?: string | null },
  ) {
    const conditions = [
      eq(agentTaskSessions.companyId, companyId),
      eq(agentTaskSessions.agentId, agentId),
    ];
    if (opts?.taskKey) {
      conditions.push(eq(agentTaskSessions.taskKey, opts.taskKey));
    }
    if (opts?.adapterType) {
      conditions.push(eq(agentTaskSessions.adapterType, opts.adapterType));
    }

    return db
      .delete(agentTaskSessions)
      .where(and(...conditions))
      .returning()
      .then((rows) => rows.length);
  }

  async function ensureRuntimeState(agent: typeof agents.$inferSelect) {
    const existing = await getRuntimeState(agent.id);
    if (existing) return existing;

    return db
      .insert(agentRuntimeState)
      .values({
        agentId: agent.id,
        companyId: agent.companyId,
        adapterType: agent.adapterType,
        stateJson: {},
      })
      .returning()
      .then((rows) => rows[0]);
  }

  async function setRunStatus(
    runId: string,
    status: string,
    patch?: Partial<typeof heartbeatRuns.$inferInsert>,
  ) {
    const updated = await db
      .update(heartbeatRuns)
      .set({ status, ...patch, updatedAt: new Date() })
      .where(eq(heartbeatRuns.id, runId))
      .returning()
      .then((rows) => rows[0] ?? null);

    if (updated) {
      publishLiveEvent({
        companyId: updated.companyId,
        type: "heartbeat.run.status",
        payload: {
          runId: updated.id,
          agentId: updated.agentId,
          status: updated.status,
          invocationSource: updated.invocationSource,
          triggerDetail: updated.triggerDetail,
          error: updated.error ?? null,
          errorCode: updated.errorCode ?? null,
          startedAt: updated.startedAt ? new Date(updated.startedAt).toISOString() : null,
          finishedAt: updated.finishedAt ? new Date(updated.finishedAt).toISOString() : null,
        },
      });
      publishRunLifecyclePluginEvent(updated);
    }

    return updated;
  }

  function publishRunLifecyclePluginEvent(run: typeof heartbeatRuns.$inferSelect) {
    const eventType =
      run.status === "running"
        ? "agent.run.started"
        : run.status === "succeeded"
          ? "agent.run.finished"
          : run.status === "failed" || run.status === "timed_out"
            ? "agent.run.failed"
            : run.status === "cancelled"
              ? "agent.run.cancelled"
              : null;
    if (!eventType) return;
    publishPluginDomainEvent({
      eventId: randomUUID(),
      eventType,
      occurredAt: new Date().toISOString(),
      actorId: run.agentId,
      actorType: "agent",
      entityId: run.id,
      entityType: "heartbeat_run",
      companyId: run.companyId,
      payload: {
        runId: run.id,
        agentId: run.agentId,
        status: run.status,
        invocationSource: run.invocationSource,
        triggerDetail: run.triggerDetail,
        error: run.error ?? null,
        errorCode: run.errorCode ?? null,
        issueId: typeof run.contextSnapshot === "object" && run.contextSnapshot !== null
          ? (run.contextSnapshot as Record<string, unknown>).issueId ?? null
          : null,
        startedAt: run.startedAt ? new Date(run.startedAt).toISOString() : null,
        finishedAt: run.finishedAt ? new Date(run.finishedAt).toISOString() : null,
      },
    });
  }

  async function setWakeupStatus(
    wakeupRequestId: string | null | undefined,
    status: string,
    patch?: Partial<typeof agentWakeupRequests.$inferInsert>,
  ) {
    if (!wakeupRequestId) return;
    await db
      .update(agentWakeupRequests)
      .set({ status, ...patch, updatedAt: new Date() })
      .where(eq(agentWakeupRequests.id, wakeupRequestId));
  }

  async function addContinuationExhaustedCommentOnce(input: {
    run: typeof heartbeatRuns.$inferSelect;
    issueId: string;
    comment: string;
  }) {
    const existing = await db
      .select({ id: issueComments.id })
      .from(issueComments)
      .where(
        and(
          eq(issueComments.companyId, input.run.companyId),
          eq(issueComments.issueId, input.issueId),
          eq(issueComments.createdByRunId, input.run.id),
          sql`${issueComments.body} like 'Bounded liveness continuation exhausted%'`,
        ),
      )
      .limit(1)
      .then((rows) => rows[0] ?? null);
    if (existing) return;
    await issuesSvc.addComment(input.issueId, input.comment, {
      agentId: input.run.agentId,
      runId: input.run.id,
    });
  }

  async function handleRunLivenessContinuation(run: typeof heartbeatRuns.$inferSelect) {
    const livenessState = run.livenessState as RunLivenessState | null;
    if (livenessState !== "plan_only" && livenessState !== "empty_response") return;

    const context = parseObject(run.contextSnapshot);
    const issueId = readNonEmptyString(context.issueId);
    if (!issueId) return;

    const [issue, agent] = await Promise.all([
      db
        .select({
          id: issues.id,
          companyId: issues.companyId,
          identifier: issues.identifier,
          title: issues.title,
          status: issues.status,
          assigneeAgentId: issues.assigneeAgentId,
          executionState: issues.executionState,
          projectId: issues.projectId,
        })
        .from(issues)
        .where(and(eq(issues.id, issueId), eq(issues.companyId, run.companyId)))
        .then((rows) => rows[0] ?? null),
      db
        .select({
          id: agents.id,
          companyId: agents.companyId,
          status: agents.status,
        })
        .from(agents)
        .where(eq(agents.id, run.agentId))
        .then((rows) => rows[0] ?? null),
    ]);

    const budgetBlock =
      issue && agent
        ? await budgets.getInvocationBlock(issue.companyId, agent.id, {
          issueId: issue.id,
          projectId: issue.projectId,
        })
        : null;

    const nextAttempt = readContinuationAttempt(run.continuationAttempt) + 1;
    const idempotencyKey = issue
      ? buildRunLivenessContinuationIdempotencyKey({
        issueId: issue.id,
        sourceRunId: run.id,
        livenessState,
        nextAttempt,
      })
      : null;
    const existingWake = idempotencyKey
      ? await findExistingRunLivenessContinuationWake(db, {
        companyId: run.companyId,
        idempotencyKey,
      })
      : null;

    const decision = decideRunLivenessContinuation({
      run,
      issue,
      agent,
      livenessState,
      livenessReason: run.livenessReason,
      nextAction: run.nextAction,
      budgetBlocked: Boolean(budgetBlock),
      idempotentWakeExists: Boolean(existingWake),
    });

    if (decision.kind === "exhausted") {
      await setRunStatus(run.id, run.status, {
        livenessReason: `${run.livenessReason ?? "Run ended without concrete progress"}; continuation attempts exhausted`,
      });
      await addContinuationExhaustedCommentOnce({
        run,
        issueId,
        comment: decision.comment,
      });
      return;
    }

    if (decision.kind !== "enqueue") return;

    const continuationRun = await enqueueWakeup(run.agentId, {
      source: "automation",
      triggerDetail: "system",
      reason: RUN_LIVENESS_CONTINUATION_REASON,
      payload: decision.payload,
      contextSnapshot: decision.contextSnapshot,
      idempotencyKey: decision.idempotencyKey,
      requestedByActorType: "system",
      requestedByActorId: "heartbeat",
    });

    if (continuationRun) {
      await db
        .update(heartbeatRuns)
        .set({
          continuationAttempt: decision.nextAttempt,
          updatedAt: new Date(),
        })
        .where(eq(heartbeatRuns.id, continuationRun.id));
    }
  }

  async function appendRunEvent(
    run: typeof heartbeatRuns.$inferSelect,
    seq: number,
    event: {
      eventType: string;
      stream?: "system" | "stdout" | "stderr";
      level?: "info" | "warn" | "error";
      color?: string;
      message?: string;
      payload?: Record<string, unknown>;
    },
  ) {
    const currentUserRedactionOptions = await getCurrentUserRedactionOptions();
    const sanitizedMessage = event.message
      ? redactCurrentUserText(event.message, currentUserRedactionOptions)
      : event.message;
    const boundedPayload = event.payload
      ? boundHeartbeatRunEventPayloadForStorage(event.payload)
      : event.payload;
    const sanitizedPayload = boundedPayload
      ? redactCurrentUserValue(boundedPayload, currentUserRedactionOptions)
      : boundedPayload;

    await db.insert(heartbeatRunEvents).values({
      companyId: run.companyId,
      runId: run.id,
      agentId: run.agentId,
      seq,
      eventType: event.eventType,
      stream: event.stream,
      level: event.level,
      color: event.color,
      message: sanitizedMessage,
      payload: sanitizedPayload,
    });

    publishLiveEvent({
      companyId: run.companyId,
      type: "heartbeat.run.event",
      payload: {
        runId: run.id,
        agentId: run.agentId,
        seq,
        eventType: event.eventType,
        stream: event.stream ?? null,
        level: event.level ?? null,
        color: event.color ?? null,
        message: sanitizedMessage ?? null,
        payload: sanitizedPayload ?? null,
      },
    });
  }

  async function nextRunEventSeq(runId: string) {
    const [row] = await db
      .select({ maxSeq: sql<number | null>`max(${heartbeatRunEvents.seq})` })
      .from(heartbeatRunEvents)
      .where(eq(heartbeatRunEvents.runId, runId));
    return Number(row?.maxSeq ?? 0) + 1;
  }

  async function persistRunProcessMetadata(
    runId: string,
    meta: { pid: number; processGroupId: number | null; startedAt: string },
  ) {
    const startedAt = new Date(meta.startedAt);
    return db
      .update(heartbeatRuns)
      .set({
        processPid: meta.pid,
        processGroupId: meta.processGroupId,
        processStartedAt: Number.isNaN(startedAt.getTime()) ? new Date() : startedAt,
        updatedAt: new Date(),
      })
      .where(eq(heartbeatRuns.id, runId))
      .returning()
      .then((rows) => rows[0] ?? null);
  }

  async function clearDetachedRunWarning(runId: string) {
    const updated = await db
      .update(heartbeatRuns)
      .set({
        error: null,
        errorCode: null,
        updatedAt: new Date(),
      })
      .where(and(eq(heartbeatRuns.id, runId), eq(heartbeatRuns.status, "running"), eq(heartbeatRuns.errorCode, DETACHED_PROCESS_ERROR_CODE)))
      .returning()
      .then((rows) => rows[0] ?? null);
    if (!updated) return null;

    await appendRunEvent(updated, await nextRunEventSeq(updated.id), {
      eventType: "lifecycle",
      stream: "system",
      level: "info",
      message: "Detached child process reported activity; cleared detached warning",
    });
    return updated;
  }

  async function patchRunIssueCommentStatus(
    runId: string,
    patch: Partial<Pick<typeof heartbeatRuns.$inferInsert, "issueCommentStatus" | "issueCommentSatisfiedByCommentId" | "issueCommentRetryQueuedAt">>,
  ) {
    return db
      .update(heartbeatRuns)
      .set({ ...patch, updatedAt: new Date() })
      .where(eq(heartbeatRuns.id, runId))
      .returning()
      .then((rows) => rows[0] ?? null);
  }

  async function findRunIssueComment(runId: string, companyId: string, issueId: string) {
    return db
      .select({
        id: issueComments.id,
      })
      .from(issueComments)
      .where(
        and(
          eq(issueComments.companyId, companyId),
          eq(issueComments.issueId, issueId),
          eq(issueComments.createdByRunId, runId),
        ),
      )
      .orderBy(desc(issueComments.createdAt), desc(issueComments.id))
      .limit(1)
      .then((rows) => rows[0] ?? null);
  }

  async function refreshContinuationSummaryForRun(
    run: typeof heartbeatRuns.$inferSelect,
    agent: typeof agents.$inferSelect,
  ) {
    const contextSnapshot = parseObject(run.contextSnapshot);
    const issueId = readNonEmptyString(contextSnapshot.issueId);
    if (!issueId) return null;
    try {
      return await refreshIssueContinuationSummary({
        db,
        issueId,
        run: {
          id: run.id,
          status: run.status,
          error: run.error,
          errorCode: run.errorCode,
          resultJson: run.resultJson as Record<string, unknown> | null,
          stdoutExcerpt: run.stdoutExcerpt,
          stderrExcerpt: run.stderrExcerpt,
          finishedAt: run.finishedAt,
        },
        agent: {
          id: agent.id,
          name: agent.name,
          adapterType: agent.adapterType,
        },
      });
    } catch (err) {
      logger.warn(
        {
          err,
          runId: run.id,
          issueId,
          agentId: agent.id,
        },
        "failed to refresh issue continuation summary",
      );
      return null;
    }
  }

  async function enqueueMissingIssueCommentRetry(
    run: typeof heartbeatRuns.$inferSelect,
    agent: typeof agents.$inferSelect,
    issueId: string,
  ) {
    const contextSnapshot = parseObject(run.contextSnapshot);
    const taskKey = deriveTaskKeyWithHeartbeatFallback(contextSnapshot, null);
    const sessionBefore = await resolveSessionBeforeForWakeup(agent, taskKey);
    const retryContextSnapshot = {
      ...contextSnapshot,
      retryOfRunId: run.id,
      wakeReason: "missing_issue_comment",
      retryReason: "missing_issue_comment",
      missingIssueCommentForRunId: run.id,
    };
    const now = new Date();

    const retryRun = await db.transaction(async (tx) => {
      await tx.execute(
        sql`select id from issues where company_id = ${run.companyId} and execution_run_id = ${run.id} for update`,
      );

      const issue = await tx
        .select({ id: issues.id })
        .from(issues)
        .where(and(eq(issues.companyId, run.companyId), eq(issues.executionRunId, run.id)))
        .then((rows) => rows[0] ?? null);
      if (!issue) return null;

      const wakeupRequest = await tx
        .insert(agentWakeupRequests)
        .values({
          companyId: run.companyId,
          agentId: run.agentId,
          source: "automation",
          triggerDetail: "system",
          reason: "missing_issue_comment",
          payload: {
            issueId,
            retryOfRunId: run.id,
            retryReason: "missing_issue_comment",
          },
          status: "queued",
          requestedByActorType: "system",
          requestedByActorId: null,
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      const queuedRun = await tx
        .insert(heartbeatRuns)
        .values({
          companyId: run.companyId,
          agentId: run.agentId,
          invocationSource: "automation",
          triggerDetail: "system",
          status: "queued",
          wakeupRequestId: wakeupRequest.id,
          contextSnapshot: retryContextSnapshot,
          sessionIdBefore: sessionBefore,
          retryOfRunId: run.id,
          issueCommentStatus: "not_applicable",
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      await tx
        .update(agentWakeupRequests)
        .set({
          runId: queuedRun.id,
          updatedAt: now,
        })
        .where(eq(agentWakeupRequests.id, wakeupRequest.id));

      await tx
        .update(issues)
        .set({
          executionRunId: queuedRun.id,
          executionAgentNameKey: normalizeAgentNameKey(agent.name),
          executionLockedAt: now,
          updatedAt: now,
        })
        .where(eq(issues.id, issue.id));

      await tx
        .update(heartbeatRuns)
        .set({
          issueCommentStatus: "retry_queued",
          issueCommentRetryQueuedAt: now,
          updatedAt: now,
        })
        .where(eq(heartbeatRuns.id, run.id));

      return queuedRun;
    });

    if (!retryRun) return null;

    publishLiveEvent({
      companyId: retryRun.companyId,
      type: "heartbeat.run.queued",
      payload: {
        runId: retryRun.id,
        agentId: retryRun.agentId,
        invocationSource: retryRun.invocationSource,
        triggerDetail: retryRun.triggerDetail,
        wakeupRequestId: retryRun.wakeupRequestId,
      },
    });

    return retryRun;
  }

  async function hasDeferredIssueCommentWake(companyId: string, issueId: string, agentId: string) {
    const deferredPayloads = await db
      .select({ payload: agentWakeupRequests.payload })
      .from(agentWakeupRequests)
      .where(
        and(
          eq(agentWakeupRequests.companyId, companyId),
          eq(agentWakeupRequests.agentId, agentId),
          eq(agentWakeupRequests.status, "deferred_issue_execution"),
          sql`${agentWakeupRequests.payload} ->> 'issueId' = ${issueId}`,
        ),
      );

    return deferredPayloads.some(({ payload }) => {
      const parsedPayload = parseObject(payload);
      const deferredContext = parseObject(parsedPayload[DEFERRED_WAKE_CONTEXT_KEY]);
      return Boolean(deriveCommentId(deferredContext, parsedPayload));
    });
  }

  async function finalizeIssueCommentPolicy(
    run: typeof heartbeatRuns.$inferSelect,
    agent: typeof agents.$inferSelect,
  ) {
    const contextSnapshot = parseObject(run.contextSnapshot);
    const issueId = readNonEmptyString(contextSnapshot.issueId);
    if (!issueId) {
      if (run.issueCommentStatus !== "not_applicable") {
        await patchRunIssueCommentStatus(run.id, {
          issueCommentStatus: "not_applicable",
          issueCommentSatisfiedByCommentId: null,
          issueCommentRetryQueuedAt: null,
        });
      }
      return { outcome: "not_applicable" as const, queuedRun: null };
    }

    const postedComment = await findRunIssueComment(run.id, run.companyId, issueId);
    if (postedComment) {
      await patchRunIssueCommentStatus(run.id, {
        issueCommentStatus: "satisfied",
        issueCommentSatisfiedByCommentId: postedComment.id,
        issueCommentRetryQueuedAt: null,
      });
      return { outcome: "satisfied" as const, queuedRun: null };
    }

    if (readNonEmptyString(contextSnapshot.retryReason) === "missing_issue_comment") {
      await patchRunIssueCommentStatus(run.id, {
        issueCommentStatus: "retry_exhausted",
        issueCommentSatisfiedByCommentId: null,
      });
      await appendRunEvent(run, await nextRunEventSeq(run.id), {
        eventType: "lifecycle",
        stream: "system",
        level: "warn",
        message: "Run ended without an issue comment after one retry; no further comment wake will be queued",
      });
      return { outcome: "retry_exhausted" as const, queuedRun: null };
    }

    if (!shouldRequireIssueCommentForWake(contextSnapshot)) {
      if (run.issueCommentStatus !== "not_applicable") {
        await patchRunIssueCommentStatus(run.id, {
          issueCommentStatus: "not_applicable",
          issueCommentSatisfiedByCommentId: null,
          issueCommentRetryQueuedAt: null,
        });
      }
      return { outcome: "not_applicable" as const, queuedRun: null };
    }

    if (await hasDeferredIssueCommentWake(run.companyId, issueId, run.agentId)) {
      await patchRunIssueCommentStatus(run.id, {
        issueCommentStatus: "not_applicable",
        issueCommentSatisfiedByCommentId: null,
        issueCommentRetryQueuedAt: null,
      });
      await appendRunEvent(run, await nextRunEventSeq(run.id), {
        eventType: "lifecycle",
        stream: "system",
        level: "info",
        message: "Run ended without an issue comment; a deferred comment wake already exists for this issue",
      });
      return { outcome: "not_applicable" as const, queuedRun: null };
    }

    const queuedRun = await enqueueMissingIssueCommentRetry(run, agent, issueId);
    if (queuedRun) {
      await appendRunEvent(run, await nextRunEventSeq(run.id), {
        eventType: "lifecycle",
        stream: "system",
        level: "warn",
        message: "Run ended without an issue comment; queued one follow-up wake to require a comment",
      });
      return { outcome: "retry_queued" as const, queuedRun };
    }

    await patchRunIssueCommentStatus(run.id, {
      issueCommentStatus: "retry_exhausted",
      issueCommentSatisfiedByCommentId: null,
    });
    return { outcome: "retry_exhausted" as const, queuedRun: null };
  }

  async function enqueueProcessLossRetry(
    run: typeof heartbeatRuns.$inferSelect,
    agent: typeof agents.$inferSelect,
    now: Date,
  ) {
    const contextSnapshot = parseObject(run.contextSnapshot);
    const issueId = readNonEmptyString(contextSnapshot.issueId);
    const taskKey = deriveTaskKeyWithHeartbeatFallback(contextSnapshot, null);
    const sessionBefore = await resolveSessionBeforeForWakeup(agent, taskKey);
    const retryContextSnapshot = {
      ...contextSnapshot,
      retryOfRunId: run.id,
      wakeReason: "process_lost_retry",
      retryReason: "process_lost",
    };

    const queued = await db.transaction(async (tx) => {
      const wakeupRequest = await tx
        .insert(agentWakeupRequests)
        .values({
          companyId: run.companyId,
          agentId: run.agentId,
          source: "automation",
          triggerDetail: "system",
          reason: "process_lost_retry",
          payload: {
            ...(issueId ? { issueId } : {}),
            retryOfRunId: run.id,
          },
          status: "queued",
          requestedByActorType: "system",
          requestedByActorId: null,
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      const retryRun = await tx
        .insert(heartbeatRuns)
        .values({
          companyId: run.companyId,
          agentId: run.agentId,
          invocationSource: "automation",
          triggerDetail: "system",
          status: "queued",
          wakeupRequestId: wakeupRequest.id,
          contextSnapshot: retryContextSnapshot,
          sessionIdBefore: sessionBefore,
          retryOfRunId: run.id,
          processLossRetryCount: (run.processLossRetryCount ?? 0) + 1,
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      await tx
        .update(agentWakeupRequests)
        .set({
          runId: retryRun.id,
          updatedAt: now,
        })
        .where(eq(agentWakeupRequests.id, wakeupRequest.id));

      if (issueId) {
        await tx
          .update(issues)
          .set({
            executionRunId: retryRun.id,
            executionAgentNameKey: normalizeAgentNameKey(agent.name),
            executionLockedAt: now,
            updatedAt: now,
          })
          .where(and(eq(issues.id, issueId), eq(issues.companyId, run.companyId), eq(issues.executionRunId, run.id)));
      }

      return retryRun;
    });

    publishLiveEvent({
      companyId: queued.companyId,
      type: "heartbeat.run.queued",
      payload: {
        runId: queued.id,
        agentId: queued.agentId,
        invocationSource: queued.invocationSource,
        triggerDetail: queued.triggerDetail,
        wakeupRequestId: queued.wakeupRequestId,
      },
    });

    await appendRunEvent(queued, 1, {
      eventType: "lifecycle",
      stream: "system",
      level: "warn",
      message: "Queued automatic retry after orphaned child process was confirmed dead",
      payload: {
        retryOfRunId: run.id,
      },
    });

    return queued;
  }

  async function scheduleBoundedRetryForRun(
    run: typeof heartbeatRuns.$inferSelect,
    agent: typeof agents.$inferSelect,
    opts?: {
      now?: Date;
      random?: () => number;
      retryReason?: string;
      wakeReason?: string;
    },
  ) {
    const now = opts?.now ?? new Date();
    const retryReason = opts?.retryReason ?? BOUNDED_TRANSIENT_HEARTBEAT_RETRY_REASON;
    const wakeReason = opts?.wakeReason ?? BOUNDED_TRANSIENT_HEARTBEAT_RETRY_WAKE_REASON;
    const nextAttempt = (run.scheduledRetryAttempt ?? 0) + 1;
    const schedule = computeBoundedTransientHeartbeatRetrySchedule(nextAttempt, now, opts?.random);
    const codexTransientFallbackMode =
      agent.adapterType === "codex_local" && retryReason === BOUNDED_TRANSIENT_HEARTBEAT_RETRY_REASON && run.errorCode === "codex_transient_upstream"
        ? resolveCodexTransientFallbackMode(nextAttempt)
        : null;

    if (!schedule) {
      await appendRunEvent(run, await nextRunEventSeq(run.id), {
        eventType: "lifecycle",
        stream: "system",
        level: "warn",
        message: `Bounded retry exhausted after ${run.scheduledRetryAttempt ?? 0} scheduled attempts; no further automatic retry will be queued`,
        payload: {
          retryReason,
          scheduledRetryAttempt: run.scheduledRetryAttempt ?? 0,
          maxAttempts: BOUNDED_TRANSIENT_HEARTBEAT_RETRY_MAX_ATTEMPTS,
        },
      });
      return {
        outcome: "retry_exhausted" as const,
        attempt: nextAttempt,
        maxAttempts: BOUNDED_TRANSIENT_HEARTBEAT_RETRY_MAX_ATTEMPTS,
      };
    }

    const contextSnapshot = parseObject(run.contextSnapshot);
    const issueId = readNonEmptyString(contextSnapshot.issueId);
    const taskKey = deriveTaskKeyWithHeartbeatFallback(contextSnapshot, null);
    const sessionBefore = await resolveSessionBeforeForWakeup(agent, taskKey);
    const retryContextSnapshot: Record<string, unknown> = {
      ...contextSnapshot,
      retryOfRunId: run.id,
      wakeReason,
      retryReason,
      scheduledRetryAttempt: schedule.attempt,
      scheduledRetryAt: schedule.dueAt.toISOString(),
      ...(codexTransientFallbackMode ? { codexTransientFallbackMode } : {}),
    };

    const retryRun = await db.transaction(async (tx) => {
      const wakeupRequest = await tx
        .insert(agentWakeupRequests)
        .values({
          companyId: run.companyId,
          agentId: run.agentId,
          source: "automation",
          triggerDetail: "system",
          reason: wakeReason,
          payload: {
            ...(issueId ? { issueId } : {}),
            retryOfRunId: run.id,
            retryReason,
            scheduledRetryAttempt: schedule.attempt,
            scheduledRetryAt: schedule.dueAt.toISOString(),
            ...(codexTransientFallbackMode ? { codexTransientFallbackMode } : {}),
          },
          status: "queued",
          requestedByActorType: "system",
          requestedByActorId: null,
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      const scheduledRun = await tx
        .insert(heartbeatRuns)
        .values({
          companyId: run.companyId,
          agentId: run.agentId,
          invocationSource: "automation",
          triggerDetail: "system",
          status: "scheduled_retry",
          wakeupRequestId: wakeupRequest.id,
          contextSnapshot: retryContextSnapshot,
          sessionIdBefore: sessionBefore,
          retryOfRunId: run.id,
          scheduledRetryAt: schedule.dueAt,
          scheduledRetryAttempt: schedule.attempt,
          scheduledRetryReason: retryReason,
          continuationAttempt: readContinuationAttempt(retryContextSnapshot.livenessContinuationAttempt),
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      await tx
        .update(agentWakeupRequests)
        .set({
          runId: scheduledRun.id,
          updatedAt: now,
        })
        .where(eq(agentWakeupRequests.id, wakeupRequest.id));

      if (issueId) {
        await tx
          .update(issues)
          .set({
            executionRunId: scheduledRun.id,
            executionAgentNameKey: normalizeAgentNameKey(agent.name),
            executionLockedAt: now,
            updatedAt: now,
          })
          .where(and(eq(issues.id, issueId), eq(issues.companyId, run.companyId), eq(issues.executionRunId, run.id)));
      }

      return scheduledRun;
    });

    await appendRunEvent(run, await nextRunEventSeq(run.id), {
      eventType: "lifecycle",
      stream: "system",
      level: "warn",
      message: `Scheduled bounded retry ${schedule.attempt}/${schedule.maxAttempts} for ${schedule.dueAt.toISOString()}`,
      payload: {
        retryRunId: retryRun.id,
        retryReason,
        scheduledRetryAttempt: schedule.attempt,
        scheduledRetryAt: schedule.dueAt.toISOString(),
        baseDelayMs: schedule.baseDelayMs,
        delayMs: schedule.delayMs,
        ...(codexTransientFallbackMode ? { codexTransientFallbackMode } : {}),
      },
    });

    return {
      outcome: "scheduled" as const,
      run: retryRun,
      dueAt: schedule.dueAt,
      attempt: schedule.attempt,
      maxAttempts: schedule.maxAttempts,
    };
  }

  async function promoteDueScheduledRetries(now = new Date()) {
    const dueRuns = await db
      .select()
      .from(heartbeatRuns)
      .where(
        and(
          eq(heartbeatRuns.status, "scheduled_retry"),
          lte(heartbeatRuns.scheduledRetryAt, now),
        ),
      )
      .orderBy(asc(heartbeatRuns.scheduledRetryAt), asc(heartbeatRuns.createdAt), asc(heartbeatRuns.id))
      .limit(50);

    const promotedRunIds: string[] = [];

    for (const dueRun of dueRuns) {
      const promoted = await db
        .update(heartbeatRuns)
        .set({
          status: "queued",
          updatedAt: now,
        })
        .where(
          and(
            eq(heartbeatRuns.id, dueRun.id),
            eq(heartbeatRuns.status, "scheduled_retry"),
            lte(heartbeatRuns.scheduledRetryAt, now),
          ),
        )
        .returning()
        .then((rows) => rows[0] ?? null);
      if (!promoted) continue;

      promotedRunIds.push(promoted.id);

      await appendRunEvent(promoted, await nextRunEventSeq(promoted.id), {
        eventType: "lifecycle",
        stream: "system",
        level: "info",
        message: "Scheduled retry became due and was promoted to the queued run pool",
        payload: {
          scheduledRetryAttempt: promoted.scheduledRetryAttempt,
          scheduledRetryAt: promoted.scheduledRetryAt ? new Date(promoted.scheduledRetryAt).toISOString() : null,
          scheduledRetryReason: promoted.scheduledRetryReason,
        },
      });

      publishLiveEvent({
        companyId: promoted.companyId,
        type: "heartbeat.run.queued",
        payload: {
          runId: promoted.id,
          agentId: promoted.agentId,
          invocationSource: promoted.invocationSource,
          triggerDetail: promoted.triggerDetail,
          wakeupRequestId: promoted.wakeupRequestId,
        },
      });
    }

    return {
      promoted: promotedRunIds.length,
      runIds: promotedRunIds,
    };
  }

  function parseHeartbeatPolicy(agent: typeof agents.$inferSelect) {
    const runtimeConfig = parseObject(agent.runtimeConfig);
    const heartbeat = parseObject(runtimeConfig.heartbeat);

    return {
      enabled: asBoolean(heartbeat.enabled, false),
      intervalSec: Math.max(0, asNumber(heartbeat.intervalSec, 0)),
      wakeOnDemand: asBoolean(heartbeat.wakeOnDemand ?? heartbeat.wakeOnAssignment ?? heartbeat.wakeOnOnDemand ?? heartbeat.wakeOnAutomation, true),
      maxConcurrentRuns: normalizeMaxConcurrentRuns(heartbeat.maxConcurrentRuns),
    };
  }

  function issueRunPriorityRank(priority: string | null | undefined) {
    switch (priority) {
      case "critical":
        return 0;
      case "high":
        return 1;
      case "medium":
        return 2;
      case "low":
        return 3;
      default:
        return 4;
    }
  }

  async function listQueuedRunDependencyReadiness(
    companyId: string,
    queuedRuns: Array<typeof heartbeatRuns.$inferSelect>,
  ) {
    const issueIds = [...new Set(
      queuedRuns
        .map((run) => readNonEmptyString(parseObject(run.contextSnapshot).issueId))
        .filter((issueId): issueId is string => Boolean(issueId)),
    )];
    if (issueIds.length === 0) {
      return new Map<string, Awaited<ReturnType<typeof issuesSvc.getDependencyReadiness>>>();
    }
    return issuesSvc.listDependencyReadiness(companyId, issueIds);
  }

  async function countRunningRunsForAgent(agentId: string) {
    const [{ count }] = await db
      .select({ count: sql<number>`count(*)` })
      .from(heartbeatRuns)
      .where(and(eq(heartbeatRuns.agentId, agentId), eq(heartbeatRuns.status, "running")));
    return Number(count ?? 0);
  }

  async function claimQueuedRun(run: typeof heartbeatRuns.$inferSelect) {
    if (run.status !== "queued") return run;
    const agent = await getAgent(run.agentId);
    if (!agent) {
      await cancelRunInternal(run.id, "Cancelled because the agent no longer exists");
      return null;
    }
    if (agent.status === "paused" || agent.status === "terminated" || agent.status === "pending_approval") {
      await cancelRunInternal(run.id, "Cancelled because the agent is not invokable");
      return null;
    }

    const context = parseObject(run.contextSnapshot);
    const budgetBlock = await budgets.getInvocationBlock(run.companyId, run.agentId, {
      issueId: readNonEmptyString(context.issueId),
      projectId: readNonEmptyString(context.projectId),
    });
    if (budgetBlock) {
      await cancelRunInternal(run.id, budgetBlock.reason);
      return null;
    }

    const issueId = readNonEmptyString(context.issueId);
    if (issueId) {
      const activePauseHold = await treeControlSvc.getActivePauseHoldGate(run.companyId, issueId);
      const treeHoldInteractionWake = activePauseHold && allowsIssueInteractionWake(context);
      if (activePauseHold && !treeHoldInteractionWake) {
        await cancelRunInternal(run.id, "Cancelled because issue is held by an active subtree pause hold");
        await logActivity(db, {
          companyId: run.companyId,
          actorType: "system",
          actorId: "system",
          agentId: run.agentId,
          runId: run.id,
          action: "issue.tree_hold_run_interrupted",
          entityType: "heartbeat_run",
          entityId: run.id,
          details: {
            issueId,
            holdId: activePauseHold.holdId,
            rootIssueId: activePauseHold.rootIssueId,
            source: "heartbeat.claim_queued_run",
            securityPrinciples: ["Complete Mediation", "Fail Securely", "Secure Defaults"],
          },
        });
        return null;
      }

      const dependencyReadiness = await issuesSvc.listDependencyReadiness(run.companyId, [issueId]);
      const unresolvedBlockerCount = dependencyReadiness.get(issueId)?.unresolvedBlockerCount ?? 0;
      if (unresolvedBlockerCount > 0 && !allowsIssueInteractionWake(context)) {
        logger.debug({ runId: run.id, issueId, unresolvedBlockerCount }, "claimQueuedRun: skipping blocked run");
        return null;
      }
    }

    const claimedAt = new Date();
    const claimed = await db
      .update(heartbeatRuns)
      .set({
        status: "running",
        startedAt: run.startedAt ?? claimedAt,
        updatedAt: claimedAt,
      })
      .where(and(eq(heartbeatRuns.id, run.id), eq(heartbeatRuns.status, "queued")))
      .returning()
      .then((rows) => rows[0] ?? null);
    if (!claimed) return null;

    publishLiveEvent({
      companyId: claimed.companyId,
      type: "heartbeat.run.status",
      payload: {
        runId: claimed.id,
        agentId: claimed.agentId,
        status: claimed.status,
        invocationSource: claimed.invocationSource,
        triggerDetail: claimed.triggerDetail,
        error: claimed.error ?? null,
        errorCode: claimed.errorCode ?? null,
        startedAt: claimed.startedAt ? new Date(claimed.startedAt).toISOString() : null,
        finishedAt: claimed.finishedAt ? new Date(claimed.finishedAt).toISOString() : null,
      },
    });
    publishRunLifecyclePluginEvent(claimed);

    await setWakeupStatus(claimed.wakeupRequestId, "claimed", { claimedAt });

    // Fix A (lazy locking): stamp executionRunId now that the run is actually running,
    // not at queue time. Guard is idempotent — safe if called more than once.
    const claimedIssueId = readNonEmptyString(parseObject(claimed.contextSnapshot).issueId);
    if (claimedIssueId) {
      const claimedAgent = await getAgent(claimed.agentId);
      await db
        .update(issues)
        .set({
          executionRunId: claimed.id,
          executionAgentNameKey: normalizeAgentNameKey(claimedAgent?.name),
          executionLockedAt: claimedAt,
          updatedAt: claimedAt,
        })
        .where(
          and(
            eq(issues.id, claimedIssueId),
            eq(issues.companyId, claimed.companyId),
            or(isNull(issues.executionRunId), eq(issues.executionRunId, claimed.id)),
          ),
        );
    }

    return claimed;
  }

  async function finalizeAgentStatus(
    agentId: string,
    outcome: "succeeded" | "failed" | "cancelled" | "timed_out",
  ) {
    const existing = await getAgent(agentId);
    if (!existing) return;

    if (existing.status === "paused" || existing.status === "terminated") {
      return;
    }

    const isFirstHeartbeat = !existing.lastHeartbeatAt;

    const runningCount = await countRunningRunsForAgent(agentId);
    const nextStatus =
      runningCount > 0
        ? "running"
        : outcome === "succeeded" || outcome === "cancelled"
          ? "idle"
          : "error";

    const updated = await db
      .update(agents)
      .set({
        status: nextStatus,
        lastHeartbeatAt: new Date(),
        updatedAt: new Date(),
      })
      .where(eq(agents.id, agentId))
      .returning()
      .then((rows) => rows[0] ?? null);

    if (isFirstHeartbeat && updated) {
      const tc = getTelemetryClient();
      if (tc) trackAgentFirstHeartbeat(tc, { agentRole: updated.role, agentId: updated.id });
    }

    if (updated) {
      publishLiveEvent({
        companyId: updated.companyId,
        type: "agent.status",
        payload: {
          agentId: updated.id,
          status: updated.status,
          lastHeartbeatAt: updated.lastHeartbeatAt
            ? new Date(updated.lastHeartbeatAt).toISOString()
            : null,
          outcome,
        },
      });
    }
  }

  function mergeRunStopMetadataForAgent(
    agent: Pick<typeof agents.$inferSelect, "adapterType" | "adapterConfig">,
    outcome: "succeeded" | "failed" | "cancelled" | "timed_out",
    options?: {
      resultJson?: Record<string, unknown> | null;
      errorCode?: string | null;
      errorMessage?: string | null;
    },
  ) {
    const stopMetadata = buildHeartbeatRunStopMetadata({
      adapterType: agent.adapterType,
      adapterConfig: parseObject(agent.adapterConfig),
      outcome,
      errorCode: options?.errorCode ?? null,
      errorMessage: options?.errorMessage ?? null,
    });
    return mergeHeartbeatRunStopMetadata(options?.resultJson ?? null, stopMetadata);
  }

  function countValue(value: unknown) {
    const parsed = Number(value ?? 0);
    return Number.isFinite(parsed) ? Math.max(0, Math.floor(parsed)) : 0;
  }

  function dateValue(value: unknown) {
    if (value instanceof Date) return Number.isNaN(value.getTime()) ? null : value;
    if (typeof value === "string" || typeof value === "number") {
      const parsed = new Date(value);
      return Number.isNaN(parsed.getTime()) ? null : parsed;
    }
    return null;
  }

  function latestDate(...values: unknown[]) {
    let latest: Date | null = null;
    for (const value of values) {
      const parsed = dateValue(value);
      if (!parsed) continue;
      if (!latest || parsed.getTime() > latest.getTime()) latest = parsed;
    }
    return latest;
  }

  async function buildRunLivenessInput(
    run: typeof heartbeatRuns.$inferSelect,
    resultJson: Record<string, unknown> | null | undefined,
  ): Promise<RunLivenessClassificationInput> {
    const context = parseObject(run.contextSnapshot);
    const contextIssueId = readNonEmptyString(context.issueId);
    const continuationAttempt = asNumber(context.continuationAttempt, run.continuationAttempt ?? 0);

    const issue = contextIssueId
      ? await db
        .select({
          status: issues.status,
          title: issues.title,
          description: issues.description,
        })
        .from(issues)
        .where(and(eq(issues.companyId, run.companyId), eq(issues.id, contextIssueId)))
        .then((rows) => rows[0] ?? null)
      : null;

    const [commentStats] = contextIssueId
      ? await db
        .select({
          count: sql<number>`count(*)::int`,
          latestAt: sql<Date | null>`max(${issueComments.createdAt})`,
        })
        .from(issueComments)
        .where(
          and(
            eq(issueComments.companyId, run.companyId),
            eq(issueComments.issueId, contextIssueId),
            eq(issueComments.createdByRunId, run.id),
          ),
        )
      : [{ count: 0, latestAt: null }];

    const [documentStats] = contextIssueId
      ? await db
        .select({
          count: sql<number>`count(*)::int`,
          planCount: sql<number>`count(*) filter (where ${issueDocuments.key} = 'plan')::int`,
          latestAt: sql<Date | null>`max(${documentRevisions.createdAt})`,
        })
        .from(documentRevisions)
        .innerJoin(issueDocuments, eq(documentRevisions.documentId, issueDocuments.documentId))
        .where(
          and(
            eq(documentRevisions.companyId, run.companyId),
            eq(documentRevisions.createdByRunId, run.id),
            eq(issueDocuments.companyId, run.companyId),
            eq(issueDocuments.issueId, contextIssueId),
            sql`${issueDocuments.key} != ${ISSUE_CONTINUATION_SUMMARY_DOCUMENT_KEY}`,
          ),
        )
      : [{ count: 0, planCount: 0, latestAt: null }];

    const [workProductStats] = contextIssueId
      ? await db
        .select({
          count: sql<number>`count(*)::int`,
          latestAt: sql<Date | null>`max(${issueWorkProducts.createdAt})`,
        })
        .from(issueWorkProducts)
        .where(
          and(
            eq(issueWorkProducts.companyId, run.companyId),
            eq(issueWorkProducts.issueId, contextIssueId),
            eq(issueWorkProducts.createdByRunId, run.id),
          ),
        )
      : [{ count: 0, latestAt: null }];

    const [workspaceOperationStats] = await db
      .select({
        count: sql<number>`count(*)::int`,
        latestAt: sql<Date | null>`max(${workspaceOperations.startedAt})`,
      })
      .from(workspaceOperations)
      .where(and(eq(workspaceOperations.companyId, run.companyId), eq(workspaceOperations.heartbeatRunId, run.id)));

    const [activityStats] = await db
      .select({
        count: sql<number>`count(*)::int`,
        latestAt: sql<Date | null>`max(${activityLog.createdAt})`,
      })
      .from(activityLog)
      .where(
        and(
          eq(activityLog.companyId, run.companyId),
          eq(activityLog.runId, run.id),
          notInArray(activityLog.action, LIVENESS_BOOKKEEPING_ACTIVITY_ACTIONS),
        ),
      );

    const [eventStats] = await db
      .select({
        count: sql<number>`count(*) filter (where ${heartbeatRunEvents.eventType} not in ('lifecycle', 'adapter.invoke', 'error'))::int`,
        latestAt: sql<Date | null>`max(${heartbeatRunEvents.createdAt}) filter (where ${heartbeatRunEvents.eventType} not in ('lifecycle', 'adapter.invoke', 'error'))`,
      })
      .from(heartbeatRunEvents)
      .where(and(eq(heartbeatRunEvents.companyId, run.companyId), eq(heartbeatRunEvents.runId, run.id)));

    return {
      runStatus: run.status,
      issue,
      resultJson: resultJson ?? run.resultJson ?? null,
      stdoutExcerpt: run.stdoutExcerpt ?? null,
      stderrExcerpt: run.stderrExcerpt ?? null,
      error: run.error ?? null,
      errorCode: run.errorCode ?? null,
      continuationAttempt,
      evidence: {
        issueCommentsCreated: countValue(commentStats?.count),
        documentRevisionsCreated: countValue(documentStats?.count),
        planDocumentRevisionsCreated: countValue(documentStats?.planCount),
        workProductsCreated: countValue(workProductStats?.count),
        workspaceOperationsCreated: countValue(workspaceOperationStats?.count),
        activityEventsCreated: countValue(activityStats?.count),
        toolOrActionEventsCreated: countValue(eventStats?.count),
        latestEvidenceAt: latestDate(
          commentStats?.latestAt,
          documentStats?.latestAt,
          workProductStats?.latestAt,
          workspaceOperationStats?.latestAt,
          activityStats?.latestAt,
          eventStats?.latestAt,
        ),
      },
    };
  }

  async function classifyAndPersistRunLiveness(
    run: typeof heartbeatRuns.$inferSelect,
    resultJson?: Record<string, unknown> | null,
  ) {
    const classification = classifyRunLiveness(await buildRunLivenessInput(run, resultJson));
    return db
      .update(heartbeatRuns)
      .set({
        livenessState: classification.livenessState,
        livenessReason: classification.livenessReason,
        continuationAttempt: classification.continuationAttempt,
        lastUsefulActionAt: classification.lastUsefulActionAt,
        nextAction: classification.nextAction,
        updatedAt: new Date(),
      })
      .where(eq(heartbeatRuns.id, run.id))
      .returning()
      .then((rows) => rows[0] ?? null);
  }

  async function reapOrphanedRuns(opts?: { staleThresholdMs?: number }) {
    const staleThresholdMs = opts?.staleThresholdMs ?? 0;
    const now = new Date();

    // Find all runs stuck in "running" state (queued runs are legitimately waiting; resumeQueuedRuns handles them)
    const activeRuns = await db
      .select({
        run: heartbeatRuns,
        adapterType: agents.adapterType,
        adapterConfig: agents.adapterConfig,
      })
      .from(heartbeatRuns)
      .innerJoin(agents, eq(heartbeatRuns.agentId, agents.id))
      .where(eq(heartbeatRuns.status, "running"));

    const reaped: string[] = [];

    for (const { run, adapterType, adapterConfig } of activeRuns) {
      if (runningProcesses.has(run.id) || activeRunExecutions.has(run.id)) continue;

      // Apply staleness threshold to avoid false positives
      if (staleThresholdMs > 0) {
        const refTime = run.updatedAt ? new Date(run.updatedAt).getTime() : 0;
        if (now.getTime() - refTime < staleThresholdMs) continue;
      }

      const tracksLocalChild = isTrackedLocalChildProcessAdapter(adapterType);
      const processPidAlive = tracksLocalChild && run.processPid && isProcessAlive(run.processPid);
      const processGroupAlive = tracksLocalChild && run.processGroupId && isProcessGroupAlive(run.processGroupId);
      if (processPidAlive) {
        if (run.errorCode !== DETACHED_PROCESS_ERROR_CODE) {
          const detachedMessage = `Lost in-memory process handle, but child pid ${run.processPid} is still alive`;
          const detachedRun = await setRunStatus(run.id, "running", {
            error: detachedMessage,
            errorCode: DETACHED_PROCESS_ERROR_CODE,
          });
          if (detachedRun) {
            await appendRunEvent(detachedRun, await nextRunEventSeq(detachedRun.id), {
              eventType: "lifecycle",
              stream: "system",
              level: "warn",
              message: detachedMessage,
              payload: {
                processPid: run.processPid,
              },
            });
          }
        }
        continue;
      }

      let descendantOnlyCleanup = false;
      if (processGroupAlive) {
        descendantOnlyCleanup = true;
        await terminateHeartbeatRunProcess({
          pid: run.processPid,
          processGroupId: run.processGroupId,
        });
      }

      const shouldRetry = tracksLocalChild && (!!run.processPid || !!run.processGroupId) && (run.processLossRetryCount ?? 0) < 1;
      const baseMessage = buildProcessLossMessage(run, descendantOnlyCleanup ? { descendantOnly: true } : undefined);

      let finalizedRun = await setRunStatus(run.id, "failed", {
        error: shouldRetry ? `${baseMessage}; retrying once` : baseMessage,
        errorCode: "process_lost",
        finishedAt: now,
        resultJson: mergeRunStopMetadataForAgent(
          { adapterType, adapterConfig },
          "failed",
          {
            resultJson: parseObject(run.resultJson),
            errorCode: "process_lost",
            errorMessage: shouldRetry ? `${baseMessage}; retrying once` : baseMessage,
          },
        ),
      });
      await setWakeupStatus(run.wakeupRequestId, "failed", {
        finishedAt: now,
        error: shouldRetry ? `${baseMessage}; retrying once` : baseMessage,
      });
      if (!finalizedRun) finalizedRun = await getRun(run.id);
      if (!finalizedRun) continue;
      finalizedRun = await classifyAndPersistRunLiveness(finalizedRun, parseObject(finalizedRun.resultJson)) ?? finalizedRun;

      let retriedRun: typeof heartbeatRuns.$inferSelect | null = null;
      if (shouldRetry) {
        const agent = await getAgent(run.agentId);
        if (agent) {
          retriedRun = await enqueueProcessLossRetry(finalizedRun, agent, now);
        }
      } else {
        await releaseIssueExecutionAndPromote(finalizedRun);
      }

      await appendRunEvent(finalizedRun, await nextRunEventSeq(finalizedRun.id), {
        eventType: "lifecycle",
        stream: "system",
        level: "error",
        message: shouldRetry
          ? `${baseMessage}; queued retry ${retriedRun?.id ?? ""}`.trim()
          : baseMessage,
        payload: {
          ...(run.processPid ? { processPid: run.processPid } : {}),
          ...(run.processGroupId ? { processGroupId: run.processGroupId } : {}),
          ...(descendantOnlyCleanup ? { descendantOnlyCleanup: true } : {}),
          ...(retriedRun ? { retryRunId: retriedRun.id } : {}),
        },
      });

      await finalizeAgentStatus(run.agentId, "failed");
      await startNextQueuedRunForAgent(run.agentId);
      runningProcesses.delete(run.id);
      reaped.push(run.id);
    }

    if (reaped.length > 0) {
      logger.warn({ reapedCount: reaped.length, runIds: reaped }, "reaped orphaned heartbeat runs");
    }
    return { reaped: reaped.length, runIds: reaped };
  }

  async function resumeQueuedRuns() {
    const queuedRuns = await db
      .select({ agentId: heartbeatRuns.agentId })
      .from(heartbeatRuns)
      .where(eq(heartbeatRuns.status, "queued"));

    const agentIds = [...new Set(queuedRuns.map((r) => r.agentId))];
    for (const agentId of agentIds) {
      await startNextQueuedRunForAgent(agentId);
    }
  }

  async function getLatestIssueRun(companyId: string, issueId: string) {
    return db
      .select({
        id: heartbeatRuns.id,
        status: heartbeatRuns.status,
        error: heartbeatRuns.error,
        errorCode: heartbeatRuns.errorCode,
        contextSnapshot: heartbeatRuns.contextSnapshot,
      })
      .from(heartbeatRuns)
      .where(
        and(
          eq(heartbeatRuns.companyId, companyId),
          sql`${heartbeatRuns.contextSnapshot} ->> 'issueId' = ${issueId}`,
        ),
      )
      .orderBy(desc(heartbeatRuns.createdAt), desc(heartbeatRuns.id))
      .limit(1)
      .then((rows) => rows[0] ?? null);
  }

  async function hasActiveExecutionPath(companyId: string, issueId: string) {
    const [run, deferredWake] = await Promise.all([
      db
        .select({ id: heartbeatRuns.id })
        .from(heartbeatRuns)
        .where(
          and(
            eq(heartbeatRuns.companyId, companyId),
            inArray(heartbeatRuns.status, [...EXECUTION_PATH_HEARTBEAT_RUN_STATUSES]),
            sql`${heartbeatRuns.contextSnapshot} ->> 'issueId' = ${issueId}`,
          ),
        )
        .limit(1)
        .then((rows) => rows[0] ?? null),
      db
        .select({ id: agentWakeupRequests.id })
        .from(agentWakeupRequests)
        .where(
          and(
            eq(agentWakeupRequests.companyId, companyId),
            eq(agentWakeupRequests.status, "deferred_issue_execution"),
            sql`${agentWakeupRequests.payload} ->> 'issueId' = ${issueId}`,
          ),
        )
        .limit(1)
        .then((rows) => rows[0] ?? null),
    ]);

    return Boolean(run || deferredWake);
  }

  async function enqueueStrandedIssueRecovery(input: {
    issueId: string;
    agentId: string;
    reason: "issue_assignment_recovery" | "issue_continuation_needed";
    retryReason: "assignment_recovery" | "issue_continuation_needed";
    source: string;
    retryOfRunId?: string | null;
  }) {
    const queued = await enqueueWakeup(input.agentId, {
      source: "automation",
      triggerDetail: "system",
      reason: input.reason,
      payload: {
        issueId: input.issueId,
        ...(input.retryOfRunId ? { retryOfRunId: input.retryOfRunId } : {}),
      },
      requestedByActorType: "system",
      requestedByActorId: null,
      contextSnapshot: {
        issueId: input.issueId,
        taskId: input.issueId,
        wakeReason: input.reason,
        retryReason: input.retryReason,
        source: input.source,
        ...(input.retryOfRunId ? { retryOfRunId: input.retryOfRunId } : {}),
      },
    });

    if (queued && input.retryOfRunId) {
      return db
        .update(heartbeatRuns)
        .set({
          retryOfRunId: input.retryOfRunId,
          updatedAt: new Date(),
        })
        .where(eq(heartbeatRuns.id, queued.id))
        .returning()
        .then((rows) => rows[0] ?? queued);
    }

    return queued;
  }

  function formatIssueLinksForComment(relations: Array<{ identifier?: string | null }>) {
    const identifiers = [
      ...new Set(
        relations
          .map((relation) => relation.identifier)
          .filter((identifier): identifier is string => Boolean(identifier)),
      ),
    ];
    if (identifiers.length === 0) return "another open issue";
    return identifiers
      .slice(0, 5)
      .map((identifier) => {
        const prefix = identifier.split("-")[0] || "PAP";
        return `[${identifier}](/${prefix}/issues/${identifier})`;
      })
      .join(", ");
  }

  async function reconcileUnassignedBlockingIssues() {
    const candidates = await db
      .select({
        id: issues.id,
        companyId: issues.companyId,
        identifier: issues.identifier,
        status: issues.status,
        createdByAgentId: issues.createdByAgentId,
      })
      .from(issueRelations)
      .innerJoin(issues, eq(issueRelations.issueId, issues.id))
      .where(
        and(
          eq(issueRelations.type, "blocks"),
          inArray(issues.status, ["todo", "blocked"]),
          isNull(issues.assigneeAgentId),
          isNull(issues.assigneeUserId),
          sql`${issues.createdByAgentId} is not null`,
          sql`exists (
            select 1
            from issues blocked_issue
            where blocked_issue.id = ${issueRelations.relatedIssueId}
              and blocked_issue.company_id = ${issues.companyId}
              and blocked_issue.status not in ('done', 'cancelled')
          )`,
        ),
      );

    let assigned = 0;
    let skipped = 0;
    const issueIds: string[] = [];
    const seen = new Set<string>();

    for (const candidate of candidates) {
      if (seen.has(candidate.id)) continue;
      seen.add(candidate.id);

      const creatorAgentId = candidate.createdByAgentId;
      if (!creatorAgentId) {
        skipped += 1;
        continue;
      }
      const creatorAgent = await getAgent(creatorAgentId);
      if (
        !creatorAgent ||
        creatorAgent.companyId !== candidate.companyId ||
        creatorAgent.status === "paused" ||
        creatorAgent.status === "terminated" ||
        creatorAgent.status === "pending_approval"
      ) {
        skipped += 1;
        continue;
      }

      const relations = await issuesSvc.getRelationSummaries(candidate.id);
      const blockingLinks = formatIssueLinksForComment(relations.blocks);
      const updated = await issuesSvc.update(candidate.id, {
        assigneeAgentId: creatorAgent.id,
        assigneeUserId: null,
      });
      if (!updated) {
        skipped += 1;
        continue;
      }

      await issuesSvc.addComment(
        candidate.id,
        [
          "## Assigned Orphan Blocker",
          "",
          `Paperclip found this issue is blocking ${blockingLinks} but had no assignee, so no heartbeat could pick it up.`,
          "",
          "- Assigned it back to the agent that created the blocker.",
          "- Next action: resolve this blocker or reassign it to the right owner.",
        ].join("\n"),
        {},
      );

      await logActivity(db, {
        companyId: candidate.companyId,
        actorType: "system",
        actorId: "system",
        agentId: null,
        runId: null,
        action: "issue.updated",
        entityType: "issue",
        entityId: candidate.id,
        details: {
          identifier: candidate.identifier,
          assigneeAgentId: creatorAgent.id,
          source: "heartbeat.reconcile_unassigned_blocking_issue",
        },
      });

      const queued = await enqueueWakeup(creatorAgent.id, {
        source: "automation",
        triggerDetail: "system",
        reason: "issue_assigned",
        payload: {
          issueId: candidate.id,
          mutation: "unassigned_blocker_recovery",
        },
        requestedByActorType: "system",
        requestedByActorId: null,
        contextSnapshot: {
          issueId: candidate.id,
          taskId: candidate.id,
          wakeReason: "issue_assigned",
          source: "issue.unassigned_blocker_recovery",
        },
      });

      if (queued) {
        assigned += 1;
        issueIds.push(candidate.id);
      } else {
        skipped += 1;
      }
    }

    return { assigned, skipped, issueIds };
  }

  async function escalateStrandedAssignedIssue(input: {
    issue: typeof issues.$inferSelect;
    previousStatus: "todo" | "in_progress";
    latestRun: Pick<
      typeof heartbeatRuns.$inferSelect,
      "id" | "status" | "error" | "errorCode" | "contextSnapshot"
    > | null;
    comment: string;
  }) {
    const updated = await issuesSvc.update(input.issue.id, {
      status: "blocked",
    });
    if (!updated) return null;

    await issuesSvc.addComment(input.issue.id, input.comment, {});

    await logActivity(db, {
      companyId: input.issue.companyId,
      actorType: "system",
      actorId: "system",
      agentId: null,
      runId: null,
      action: "issue.updated",
      entityType: "issue",
      entityId: input.issue.id,
      details: {
        identifier: input.issue.identifier,
        status: "blocked",
        previousStatus: input.previousStatus,
        source: "heartbeat.reconcile_stranded_assigned_issue",
        latestRunId: input.latestRun?.id ?? null,
        latestRunStatus: input.latestRun?.status ?? null,
        latestRunErrorCode: input.latestRun?.errorCode ?? null,
      },
    });

    return updated;
  }

  async function reconcileStrandedAssignedIssues() {
    const candidates = await db
      .select()
      .from(issues)
      .where(
        and(
          isNull(issues.assigneeUserId),
          inArray(issues.status, ["todo", "in_progress"]),
          sql`${issues.assigneeAgentId} is not null`,
        ),
      );

    const result = {
      dispatchRequeued: 0,
      continuationRequeued: 0,
      orphanBlockersAssigned: 0,
      escalated: 0,
      skipped: 0,
      issueIds: [] as string[],
    };

    for (const issue of candidates) {
      const agentId = issue.assigneeAgentId;
      if (!agentId) {
        result.skipped += 1;
        continue;
      }

      const agent = await getAgent(agentId);
      if (!agent || agent.companyId !== issue.companyId) {
        result.skipped += 1;
        continue;
      }
      if (agent.status === "paused" || agent.status === "terminated" || agent.status === "pending_approval") {
        result.skipped += 1;
        continue;
      }

      if (await hasActiveExecutionPath(issue.companyId, issue.id)) {
        result.skipped += 1;
        continue;
      }

      const latestRun = await getLatestIssueRun(issue.companyId, issue.id);
      if (issue.status === "todo") {
        if (!latestRun || latestRun.status === "succeeded") {
          result.skipped += 1;
          continue;
        }

        if (didAutomaticRecoveryFail(latestRun, "assignment_recovery")) {
          const failureSummary = summarizeRunFailureForIssueComment(latestRun);
          const updated = await escalateStrandedAssignedIssue({
            issue,
            previousStatus: "todo",
            latestRun,
            comment:
              "Paperclip automatically retried dispatch for this assigned `todo` issue after a lost wake/run, " +
              `but it still has no live execution path.${failureSummary ?? ""} ` +
              "Moving it to `blocked` so it is visible for intervention.",
          });
          if (updated) {
            result.escalated += 1;
            result.issueIds.push(issue.id);
          } else {
            result.skipped += 1;
          }
          continue;
        }

        const queued = await enqueueStrandedIssueRecovery({
          issueId: issue.id,
          agentId,
          reason: "issue_assignment_recovery",
          retryReason: "assignment_recovery",
          source: "issue.assignment_recovery",
          retryOfRunId: latestRun.id,
        });
        if (queued) {
          result.dispatchRequeued += 1;
          result.issueIds.push(issue.id);
        } else {
          result.skipped += 1;
        }
        continue;
      }

      if (!latestRun && !issue.checkoutRunId && !issue.executionRunId) {
        result.skipped += 1;
        continue;
      }
      if (didAutomaticRecoveryFail(latestRun, "issue_continuation_needed")) {
        const failureSummary = summarizeRunFailureForIssueComment(latestRun);
        const updated = await escalateStrandedAssignedIssue({
          issue,
          previousStatus: "in_progress",
          latestRun,
          comment:
            "Paperclip automatically retried continuation for this assigned `in_progress` issue after its live " +
            `execution disappeared, but it still has no live execution path.${failureSummary ?? ""} ` +
            "Moving it to `blocked` so it is visible for intervention.",
        });
        if (updated) {
          result.escalated += 1;
          result.issueIds.push(issue.id);
        } else {
          result.skipped += 1;
        }
        continue;
      }

      const queued = await enqueueStrandedIssueRecovery({
        issueId: issue.id,
        agentId,
        reason: "issue_continuation_needed",
        retryReason: "issue_continuation_needed",
        source: "issue.continuation_recovery",
        retryOfRunId: latestRun?.id ?? issue.checkoutRunId ?? null,
      });
      if (queued) {
        result.continuationRequeued += 1;
        result.issueIds.push(issue.id);
      } else {
        result.skipped += 1;
      }
    }

    const orphanBlockerRecovery = await reconcileUnassignedBlockingIssues();
    result.orphanBlockersAssigned = orphanBlockerRecovery.assigned;
    result.skipped += orphanBlockerRecovery.skipped;
    result.issueIds.push(...orphanBlockerRecovery.issueIds);

    return result;
  }

  function issueIdFromRunContext(contextSnapshot: unknown) {
    const context = parseObject(contextSnapshot);
    return readNonEmptyString(context.issueId) ?? readNonEmptyString(context.taskId);
  }

  function issueIdFromWakePayload(payload: unknown) {
    const parsed = parseObject(payload);
    const nestedContext = parseObject(parsed[DEFERRED_WAKE_CONTEXT_KEY]);
    return readNonEmptyString(parsed.issueId) ??
      readNonEmptyString(nestedContext.issueId) ??
      readNonEmptyString(nestedContext.taskId);
  }

  async function collectIssueGraphLivenessFindings() {
    const [issueRows, relationRows, agentRows, activeRunRows, wakeRows] = await Promise.all([
      db
        .select({
          id: issues.id,
          companyId: issues.companyId,
          identifier: issues.identifier,
          title: issues.title,
          status: issues.status,
          projectId: issues.projectId,
          goalId: issues.goalId,
          parentId: issues.parentId,
          assigneeAgentId: issues.assigneeAgentId,
          assigneeUserId: issues.assigneeUserId,
          createdByAgentId: issues.createdByAgentId,
          createdByUserId: issues.createdByUserId,
          executionState: issues.executionState,
        })
        .from(issues)
        .where(isNull(issues.hiddenAt)),
      db
        .select({
          companyId: issueRelations.companyId,
          blockerIssueId: issueRelations.issueId,
          blockedIssueId: issueRelations.relatedIssueId,
        })
        .from(issueRelations)
        .where(eq(issueRelations.type, "blocks")),
      db
        .select({
          id: agents.id,
          companyId: agents.companyId,
          name: agents.name,
          role: agents.role,
          title: agents.title,
          status: agents.status,
          reportsTo: agents.reportsTo,
        })
        .from(agents),
      db
        .select({
          companyId: heartbeatRuns.companyId,
          agentId: heartbeatRuns.agentId,
          status: heartbeatRuns.status,
          contextSnapshot: heartbeatRuns.contextSnapshot,
        })
        .from(heartbeatRuns)
        .where(inArray(heartbeatRuns.status, [...EXECUTION_PATH_HEARTBEAT_RUN_STATUSES])),
      db
        .select({
          companyId: agentWakeupRequests.companyId,
          agentId: agentWakeupRequests.agentId,
          status: agentWakeupRequests.status,
          payload: agentWakeupRequests.payload,
        })
        .from(agentWakeupRequests)
        .where(inArray(agentWakeupRequests.status, ["queued", "deferred_issue_execution"])),
    ]);

    return classifyIssueGraphLiveness({
      issues: issueRows,
      relations: relationRows,
      agents: agentRows,
      activeRuns: activeRunRows.map((row) => ({
        companyId: row.companyId,
        agentId: row.agentId,
        status: row.status,
        issueId: issueIdFromRunContext(row.contextSnapshot),
      })),
      queuedWakeRequests: wakeRows.map((row) => ({
        companyId: row.companyId,
        agentId: row.agentId,
        status: row.status,
        issueId: issueIdFromWakePayload(row.payload),
      })),
    });
  }

  async function findOpenLivenessEscalation(companyId: string, incidentKey: string) {
    return db
      .select()
      .from(issues)
      .where(
        and(
          eq(issues.companyId, companyId),
          eq(issues.originKind, "harness_liveness_escalation"),
          eq(issues.originId, incidentKey),
          isNull(issues.hiddenAt),
          notInArray(issues.status, ["done", "cancelled"]),
        ),
      )
      .limit(1)
      .then((rows) => rows[0] ?? null);
  }

  async function existingBlockerIssueIds(companyId: string, issueId: string) {
    return db
      .select({ blockerIssueId: issueRelations.issueId })
      .from(issueRelations)
      .where(
        and(
          eq(issueRelations.companyId, companyId),
          eq(issueRelations.relatedIssueId, issueId),
          eq(issueRelations.type, "blocks"),
        ),
      )
      .then((rows) => rows.map((row) => row.blockerIssueId));
  }

  function formatDependencyPath(finding: IssueLivenessFinding) {
    return finding.dependencyPath
      .map((entry) => entry.identifier ?? entry.issueId)
      .join(" -> ");
  }

  function buildLivenessEscalationDescription(finding: IssueLivenessFinding) {
    return [
      "Paperclip detected a harness-level issue graph liveness incident.",
      "",
      `- Incident key: \`${finding.incidentKey}\``,
      `- Finding: \`${finding.state}\``,
      `- Dependency path: ${formatDependencyPath(finding)}`,
      `- Reason: ${finding.reason}`,
      `- Requested action: ${finding.recommendedAction}`,
      "",
      "Resolve the blocked chain, then mark this escalation issue done so the original issue can resume when all blockers are cleared.",
    ].join("\n");
  }

  function buildLivenessOriginalIssueComment(finding: IssueLivenessFinding, escalation: typeof issues.$inferSelect) {
    return [
      "Paperclip detected a harness-level liveness incident in this issue's dependency graph.",
      "",
      `- Escalation issue: ${escalation.identifier ?? escalation.id}`,
      `- Incident key: \`${finding.incidentKey}\``,
      `- Finding: \`${finding.state}\``,
      `- Dependency path: ${formatDependencyPath(finding)}`,
      `- Reason: ${finding.reason}`,
      `- Manager action requested: ${finding.recommendedAction}`,
      "",
      "This issue now keeps its existing blockers and is also blocked by the escalation issue so dependency wakeups remain explicit.",
    ].join("\n");
  }

  async function resolveEscalationOwnerAgentId(
    finding: IssueLivenessFinding,
    issue: typeof issues.$inferSelect,
  ) {
    const candidates = [
      finding.recommendedOwnerAgentId,
      ...finding.recommendedOwnerCandidateAgentIds,
    ].filter((candidate): candidate is string => Boolean(candidate));

    for (const candidate of [...new Set(candidates)]) {
      const budgetBlock = await budgets.getInvocationBlock(issue.companyId, candidate, {
        issueId: issue.id,
        projectId: issue.projectId,
      });
      if (!budgetBlock) return candidate;
    }

    return null;
  }

  async function ensureIssueBlockedByEscalation(input: {
    issue: typeof issues.$inferSelect;
    escalationIssueId: string;
    finding: IssueLivenessFinding;
    runId?: string | null;
  }) {
    const blockerIds = await existingBlockerIssueIds(input.issue.companyId, input.issue.id);
    const nextBlockerIds = [...new Set([...blockerIds, input.escalationIssueId])];
    const update: Partial<typeof issues.$inferInsert> & { blockedByIssueIds: string[] } = {
      blockedByIssueIds: nextBlockerIds,
    };
    if (input.issue.status !== "blocked") {
      update.status = "blocked";
    }

    const updated = await issuesSvc.update(input.issue.id, update);
    if (!updated) return null;

    await logActivity(db, {
      companyId: input.issue.companyId,
      actorType: "system",
      actorId: "system",
      agentId: null,
      runId: input.runId ?? null,
      action: "issue.blockers.updated",
      entityType: "issue",
      entityId: input.issue.id,
      details: {
        source: "heartbeat.reconcile_issue_graph_liveness",
        incidentKey: input.finding.incidentKey,
        findingState: input.finding.state,
        blockerIssueIds: nextBlockerIds,
        escalationIssueId: input.escalationIssueId,
        status: update.status ?? input.issue.status,
        previousStatus: input.issue.status,
      },
    });

    return updated;
  }

  async function createIssueGraphLivenessEscalation(input: {
    finding: IssueLivenessFinding;
    runId?: string | null;
  }) {
    const issue = await db
      .select()
      .from(issues)
      .where(eq(issues.id, input.finding.issueId))
      .then((rows) => rows[0] ?? null);
    if (!issue || issue.companyId !== input.finding.companyId) return { kind: "skipped" as const };

    const existing = await findOpenLivenessEscalation(issue.companyId, input.finding.incidentKey);
    if (existing) {
      await ensureIssueBlockedByEscalation({
        issue,
        escalationIssueId: existing.id,
        finding: input.finding,
        runId: input.runId ?? null,
      });
      return { kind: "existing" as const, escalationIssueId: existing.id };
    }

    const ownerAgentId = await resolveEscalationOwnerAgentId(input.finding, issue);
    if (!ownerAgentId) return { kind: "skipped" as const };

    const escalation = await issuesSvc.create(issue.companyId, {
      title: `Unblock liveness incident for ${issue.identifier ?? issue.title}`,
      description: buildLivenessEscalationDescription(input.finding),
      status: "todo",
      priority: "high",
      parentId: issue.id,
      projectId: issue.projectId,
      goalId: issue.goalId,
      assigneeAgentId: ownerAgentId,
      originKind: "harness_liveness_escalation",
      originId: input.finding.incidentKey,
      billingCode: issue.billingCode,
      inheritExecutionWorkspaceFromIssueId: issue.id,
    });

    await ensureIssueBlockedByEscalation({
      issue,
      escalationIssueId: escalation.id,
      finding: input.finding,
      runId: input.runId ?? null,
    });

    await issuesSvc.addComment(
      issue.id,
      buildLivenessOriginalIssueComment(input.finding, escalation),
      { runId: input.runId ?? null },
    );

    await logActivity(db, {
      companyId: issue.companyId,
      actorType: "system",
      actorId: "system",
      agentId: ownerAgentId,
      runId: input.runId ?? null,
      action: "issue.harness_liveness_escalation_created",
      entityType: "issue",
      entityId: escalation.id,
      details: {
        source: "heartbeat.reconcile_issue_graph_liveness",
        incidentKey: input.finding.incidentKey,
        findingState: input.finding.state,
        sourceIssueId: issue.id,
        sourceIdentifier: issue.identifier,
        escalationIssueId: escalation.id,
        escalationIdentifier: escalation.identifier,
        dependencyPath: input.finding.dependencyPath,
      },
    });

    const wake = await enqueueWakeup(ownerAgentId, {
      source: "assignment",
      triggerDetail: "system",
      reason: "issue_assigned",
      payload: {
        issueId: escalation.id,
        sourceIssueId: issue.id,
        incidentKey: input.finding.incidentKey,
      },
      requestedByActorType: "system",
      requestedByActorId: null,
      contextSnapshot: {
        issueId: escalation.id,
        taskId: escalation.id,
        wakeReason: "issue_assigned",
        source: "harness_liveness_escalation",
        sourceIssueId: issue.id,
        incidentKey: input.finding.incidentKey,
      },
    });

    logger.warn({
      incidentKey: input.finding.incidentKey,
      findingState: input.finding.state,
      sourceIssueId: issue.id,
      escalationIssueId: escalation.id,
      ownerAgentId,
      wakeupRunId: wake?.id ?? null,
    }, "created issue graph liveness escalation");

    return { kind: "created" as const, escalationIssueId: escalation.id };
  }

  async function reconcileIssueGraphLiveness(opts?: { runId?: string | null }) {
    const findings = await collectIssueGraphLivenessFindings();
    const result = {
      findings: findings.length,
      escalationsCreated: 0,
      existingEscalations: 0,
      skipped: 0,
      issueIds: [] as string[],
      escalationIssueIds: [] as string[],
    };

    for (const finding of findings) {
      const escalation = await createIssueGraphLivenessEscalation({
        finding,
        runId: opts?.runId ?? null,
      });
      if (escalation.kind === "created") {
        result.escalationsCreated += 1;
        result.issueIds.push(finding.issueId);
        result.escalationIssueIds.push(escalation.escalationIssueId);
      } else if (escalation.kind === "existing") {
        result.existingEscalations += 1;
        result.issueIds.push(finding.issueId);
        result.escalationIssueIds.push(escalation.escalationIssueId);
      } else {
        result.skipped += 1;
      }
    }

    return result;
  }

  async function updateRuntimeState(
    agent: typeof agents.$inferSelect,
    run: typeof heartbeatRuns.$inferSelect,
    result: AdapterExecutionResult,
    session: { legacySessionId: string | null },
    normalizedUsage?: UsageTotals | null,
  ) {
    await ensureRuntimeState(agent);
    const usage = normalizedUsage ?? normalizeUsageTotals(result.usage);
    const inputTokens = usage?.inputTokens ?? 0;
    const outputTokens = usage?.outputTokens ?? 0;
    const cachedInputTokens = usage?.cachedInputTokens ?? 0;
    const billingType = normalizeLedgerBillingType(result.billingType);
    const additionalCostCents = normalizeBilledCostCents(result.costUsd, billingType);
    const hasTokenUsage = inputTokens > 0 || outputTokens > 0 || cachedInputTokens > 0;
    const provider = result.provider ?? "unknown";
    const biller = resolveLedgerBiller(result);
    const ledgerScope = await resolveLedgerScopeForRun(db, agent.companyId, run);

    await db
      .update(agentRuntimeState)
      .set({
        adapterType: agent.adapterType,
        sessionId: session.legacySessionId,
        lastRunId: run.id,
        lastRunStatus: run.status,
        lastError: result.errorMessage ?? null,
        totalInputTokens: sql`${agentRuntimeState.totalInputTokens} + ${inputTokens}`,
        totalOutputTokens: sql`${agentRuntimeState.totalOutputTokens} + ${outputTokens}`,
        totalCachedInputTokens: sql`${agentRuntimeState.totalCachedInputTokens} + ${cachedInputTokens}`,
        totalCostCents: sql`${agentRuntimeState.totalCostCents} + ${additionalCostCents}`,
        updatedAt: new Date(),
      })
      .where(eq(agentRuntimeState.agentId, agent.id));

    if (additionalCostCents > 0 || hasTokenUsage) {
      const costs = costService(db, budgetHooks);
      await costs.createEvent(agent.companyId, {
        heartbeatRunId: run.id,
        agentId: agent.id,
        issueId: ledgerScope.issueId,
        projectId: ledgerScope.projectId,
        provider,
        biller,
        billingType,
        model: result.model ?? "unknown",
        inputTokens,
        cachedInputTokens,
        outputTokens,
        costCents: additionalCostCents,
        occurredAt: new Date(),
      });
    }
  }

  async function startNextQueuedRunForAgent(agentId: string) {
    return withAgentStartLock(agentId, async () => {
      const agent = await getAgent(agentId);
      if (!agent) return [];
      if (agent.status === "paused" || agent.status === "terminated" || agent.status === "pending_approval") {
        return [];
      }
      const policy = parseHeartbeatPolicy(agent);
      const runningCount = await countRunningRunsForAgent(agentId);
      const availableSlots = Math.max(0, policy.maxConcurrentRuns - runningCount);
      if (availableSlots <= 0) return [];

      const queuedRuns = await db
        .select()
        .from(heartbeatRuns)
        .where(and(eq(heartbeatRuns.agentId, agentId), eq(heartbeatRuns.status, "queued")))
        .orderBy(asc(heartbeatRuns.createdAt));
      if (queuedRuns.length === 0) return [];

      const dependencyReadiness = await listQueuedRunDependencyReadiness(agent.companyId, queuedRuns);
      const queuedIssueIds = [...new Set(
        queuedRuns
          .map((run) => readNonEmptyString(parseObject(run.contextSnapshot).issueId))
          .filter((issueId): issueId is string => Boolean(issueId)),
      )];
      const issueRows = await db
        .select({
          id: issues.id,
          status: issues.status,
          priority: issues.priority,
        })
        .from(issues)
        .where(
          queuedIssueIds.length > 0
            ? and(eq(issues.companyId, agent.companyId), inArray(issues.id, queuedIssueIds))
            : sql`false`,
        );
      const issueById = new Map(issueRows.map((row) => [row.id, row]));
      const prioritizedRuns = [...queuedRuns].sort((left, right) => {
        const leftIssueId = readNonEmptyString(parseObject(left.contextSnapshot).issueId);
        const rightIssueId = readNonEmptyString(parseObject(right.contextSnapshot).issueId);
        const leftReadiness = leftIssueId ? dependencyReadiness.get(leftIssueId) : null;
        const rightReadiness = rightIssueId ? dependencyReadiness.get(rightIssueId) : null;
        const leftReady = leftIssueId ? (leftReadiness?.isDependencyReady ?? true) : true;
        const rightReady = rightIssueId ? (rightReadiness?.isDependencyReady ?? true) : true;
        const leftIssue = leftIssueId ? issueById.get(leftIssueId) : null;
        const rightIssue = rightIssueId ? issueById.get(rightIssueId) : null;
        const leftRank = leftIssueId ? (leftReady ? (leftIssue?.status === "in_progress" ? 0 : 1) : 3) : 2;
        const rightRank = rightIssueId ? (rightReady ? (rightIssue?.status === "in_progress" ? 0 : 1) : 3) : 2;
        if (leftRank !== rightRank) return leftRank - rightRank;
        const leftPriorityRank = issueRunPriorityRank(leftIssue?.priority);
        const rightPriorityRank = issueRunPriorityRank(rightIssue?.priority);
        if (leftPriorityRank !== rightPriorityRank) return leftPriorityRank - rightPriorityRank;
        return left.createdAt.getTime() - right.createdAt.getTime();
      });

      const claimedRuns: Array<typeof heartbeatRuns.$inferSelect> = [];
      for (const queuedRun of prioritizedRuns) {
        if (claimedRuns.length >= availableSlots) break;
        const claimed = await claimQueuedRun(queuedRun);
        if (claimed) claimedRuns.push(claimed);
      }
      if (claimedRuns.length === 0) return [];

      for (const claimedRun of claimedRuns) {
        void executeRun(claimedRun.id).catch((err) => {
          logger.error({ err, runId: claimedRun.id }, "queued heartbeat execution failed");
        });
      }
      return claimedRuns;
    });
  }

  async function executeRun(runId: string) {
    let run = await getRun(runId);
    if (!run) return;
    if (run.status !== "queued" && run.status !== "running") return;

    if (run.status === "queued") {
      const claimed = await claimQueuedRun(run);
      if (!claimed) {
        // claimQueuedRun can also leave the run queued when dependencies are unresolved.
        return;
      }
      run = claimed;
    }

    activeRunExecutions.add(run.id);

    try {
    const agent = await getAgent(run.agentId);
    if (!agent) {
      await setRunStatus(runId, "failed", {
        error: "Agent not found",
        errorCode: "agent_not_found",
        finishedAt: new Date(),
      });
      await setWakeupStatus(run.wakeupRequestId, "failed", {
        finishedAt: new Date(),
        error: "Agent not found",
      });
      const failedRun = await getRun(runId);
      if (failedRun) await releaseIssueExecutionAndPromote(failedRun);
      return;
    }

    const runtime = await ensureRuntimeState(agent);
    const context = parseObject(run.contextSnapshot);
    const taskKey = deriveTaskKeyWithHeartbeatFallback(context, null);
    const sessionCodec = getAdapterSessionCodec(agent.adapterType);
    const issueId = readNonEmptyString(context.issueId);
    let issueContext = issueId ? await getIssueExecutionContext(agent.companyId, issueId) : null;
    const issueDependencyReadiness = issueId
      ? await issuesSvc.listDependencyReadiness(agent.companyId, [issueId]).then((rows) => rows.get(issueId) ?? null)
      : null;
    if (
      issueId &&
      issueContext &&
      shouldAutoCheckoutIssueForWake({
        contextSnapshot: context,
        issueStatus: issueContext.status,
        issueAssigneeAgentId: issueContext.assigneeAgentId,
        isDependencyReady: issueDependencyReadiness?.isDependencyReady ?? true,
        agentId: agent.id,
      })
    ) {
      try {
        await issuesSvc.checkout(issueId, agent.id, ["todo", "backlog", "blocked"], run.id);
        context[PAPERCLIP_HARNESS_CHECKOUT_KEY] = true;
      } catch (error) {
        if (!isCheckoutConflictError(error)) throw error;
        context[PAPERCLIP_HARNESS_CHECKOUT_KEY] = false;
      }
      issueContext = await getIssueExecutionContext(agent.companyId, issueId);
    }
    const issueAssigneeOverrides =
      issueContext && issueContext.assigneeAgentId === agent.id
        ? parseIssueAssigneeAdapterOverrides(
            issueContext.assigneeAdapterOverrides,
          )
        : null;
    const isolatedWorkspacesEnabled = (await instanceSettings.getExperimental()).enableIsolatedWorkspaces;
    const issueExecutionWorkspaceSettings = isolatedWorkspacesEnabled
      ? parseIssueExecutionWorkspaceSettings(issueContext?.executionWorkspaceSettings)
      : null;
    const contextProjectId = readNonEmptyString(context.projectId);
    const executionProjectId = issueContext?.projectId ?? contextProjectId;
    const projectContext = executionProjectId
      ? await db
          .select({
            executionWorkspacePolicy: projects.executionWorkspacePolicy,
            env: projects.env,
          })
          .from(projects)
          .where(and(eq(projects.id, executionProjectId), eq(projects.companyId, agent.companyId)))
          .then((rows) => rows[0] ?? null)
      : null;
    const projectExecutionWorkspacePolicy = gateProjectExecutionWorkspacePolicy(
      parseProjectExecutionWorkspacePolicy(projectContext?.executionWorkspacePolicy),
      isolatedWorkspacesEnabled,
    );
    const taskSession = taskKey
      ? await getTaskSession(agent.companyId, agent.id, agent.adapterType, taskKey)
      : null;
    const resetTaskSession = shouldResetTaskSessionForWake(context);
    const sessionResetReason = describeSessionResetReason(context);
    const taskSessionForRun = resetTaskSession ? null : taskSession;
    const explicitResumeSessionParams = normalizeSessionParams(
      sessionCodec.deserialize(parseObject(context.resumeSessionParams)),
    );
    const explicitResumeSessionDisplayId = truncateDisplayId(
      readNonEmptyString(context.resumeSessionDisplayId) ??
        (sessionCodec.getDisplayId ? sessionCodec.getDisplayId(explicitResumeSessionParams) : null) ??
        readNonEmptyString(explicitResumeSessionParams?.sessionId),
    );
    const previousSessionParams =
      explicitResumeSessionParams ??
      (explicitResumeSessionDisplayId ? { sessionId: explicitResumeSessionDisplayId } : null) ??
      normalizeSessionParams(sessionCodec.deserialize(taskSessionForRun?.sessionParamsJson ?? null));
    const config = parseObject(agent.adapterConfig);
    const requestedExecutionWorkspaceMode = resolveExecutionWorkspaceMode({
      projectPolicy: projectExecutionWorkspacePolicy,
      issueSettings: issueExecutionWorkspaceSettings,
      legacyUseProjectWorkspace: issueAssigneeOverrides?.useProjectWorkspace ?? null,
    });
    const resolvedWorkspace = await resolveWorkspaceForRun(
      agent,
      context,
      previousSessionParams,
      { useProjectWorkspace: requestedExecutionWorkspaceMode !== "agent_default" },
    );
    const issueRef = issueContext
      ? {
          id: issueContext.id,
          identifier: issueContext.identifier,
          title: issueContext.title,
          status: issueContext.status,
          priority: issueContext.priority,
          projectId: issueContext.projectId,
          projectWorkspaceId: issueContext.projectWorkspaceId,
          executionWorkspaceId: issueContext.executionWorkspaceId,
          executionWorkspacePreference: issueContext.executionWorkspacePreference,
        }
      : null;
    const continuationSummary = issueRef
      ? await getIssueContinuationSummaryDocument(db, issueRef.id)
      : null;
    if (continuationSummary) {
      context.paperclipContinuationSummary = {
        key: continuationSummary.key,
        title: continuationSummary.title,
        body: continuationSummary.body,
        updatedAt: continuationSummary.updatedAt.toISOString(),
      };
    } else {
      delete context.paperclipContinuationSummary;
    }
    const paperclipWakePayload = await buildPaperclipWakePayload({
      db,
      companyId: agent.companyId,
      contextSnapshot: context,
      continuationSummary,
      issueSummary: issueRef
        ? {
            id: issueRef.id,
            identifier: issueRef.identifier,
            title: issueRef.title,
            status: issueRef.status,
            priority: issueRef.priority,
          }
        : null,
    });
    if (paperclipWakePayload) {
      context[PAPERCLIP_WAKE_PAYLOAD_KEY] = paperclipWakePayload;
    } else {
      delete context[PAPERCLIP_WAKE_PAYLOAD_KEY];
    }
    const existingExecutionWorkspace =
      issueRef?.executionWorkspaceId ? await executionWorkspacesSvc.getById(issueRef.executionWorkspaceId) : null;
    const shouldReuseExisting =
      issueRef?.executionWorkspacePreference === "reuse_existing" &&
      existingExecutionWorkspace &&
      existingExecutionWorkspace.status !== "archived";
    const persistedExecutionWorkspaceMode = shouldReuseExisting && existingExecutionWorkspace
      ? issueExecutionWorkspaceModeForPersistedWorkspace(existingExecutionWorkspace.mode)
      : null;
    const effectiveExecutionWorkspaceMode: ReturnType<typeof resolveExecutionWorkspaceMode> =
      persistedExecutionWorkspaceMode === "isolated_workspace" ||
      persistedExecutionWorkspaceMode === "operator_branch" ||
      persistedExecutionWorkspaceMode === "agent_default"
        ? persistedExecutionWorkspaceMode
        : requestedExecutionWorkspaceMode;
    const workspaceManagedConfig = shouldReuseExisting
      ? { ...config }
      : buildExecutionWorkspaceAdapterConfig({
          agentConfig: config,
          projectPolicy: projectExecutionWorkspacePolicy,
          issueSettings: issueExecutionWorkspaceSettings,
          mode: requestedExecutionWorkspaceMode,
          legacyUseProjectWorkspace: issueAssigneeOverrides?.useProjectWorkspace ?? null,
        });
    const persistedWorkspaceManagedConfig = applyPersistedExecutionWorkspaceConfig({
      config: workspaceManagedConfig,
      workspaceConfig: existingExecutionWorkspace?.config ?? null,
      mode: effectiveExecutionWorkspaceMode,
    });
    const mergedConfig = issueAssigneeOverrides?.adapterConfig
      ? { ...persistedWorkspaceManagedConfig, ...issueAssigneeOverrides.adapterConfig }
      : persistedWorkspaceManagedConfig;
    const defaultEnvironment = await environmentsSvc.ensureLocalEnvironment(agent.companyId);
    const selectedEnvironmentId = resolveExecutionWorkspaceEnvironmentId({
      projectPolicy: projectExecutionWorkspacePolicy,
      issueSettings: issueExecutionWorkspaceSettings,
      workspaceConfig: existingExecutionWorkspace?.config ?? null,
      agentDefaultEnvironmentId: agent.defaultEnvironmentId,
      defaultEnvironmentId: defaultEnvironment.id,
    });
    const configSnapshot = buildExecutionWorkspaceConfigSnapshot(mergedConfig, selectedEnvironmentId);
    const executionRunConfig = stripWorkspaceRuntimeFromExecutionRunConfig(mergedConfig);
    const { resolvedConfig, secretKeys } = await resolveExecutionRunAdapterConfig({
      companyId: agent.companyId,
      executionRunConfig,
      projectEnv: projectContext?.env ?? null,
      secretsSvc,
    });
    const runScopedMentionedSkillKeys = await resolveRunScopedMentionedSkillKeys({
      db,
      companyId: agent.companyId,
      issueId,
    });
    const effectiveResolvedConfig = applyRunScopedMentionedSkillKeys(
      resolvedConfig,
      runScopedMentionedSkillKeys,
    );
    const runtimeSkillEntries = await companySkills.listRuntimeSkillEntries(agent.companyId);
    const runtimeConfig = {
      ...effectiveResolvedConfig,
      paperclipRuntimeSkills: runtimeSkillEntries,
    };
    const workspaceOperationRecorder = workspaceOperationsSvc.createRecorder({
      companyId: agent.companyId,
      heartbeatRunId: run.id,
      executionWorkspaceId: existingExecutionWorkspace?.id ?? null,
    });
    const executionWorkspaceBase = {
      baseCwd: resolvedWorkspace.cwd,
      source: resolvedWorkspace.source,
      projectId: resolvedWorkspace.projectId,
      workspaceId: resolvedWorkspace.workspaceId,
      repoUrl: resolvedWorkspace.repoUrl,
      repoRef: resolvedWorkspace.repoRef,
    } satisfies ExecutionWorkspaceInput;
    const reusedExecutionWorkspace = shouldReuseExisting && existingExecutionWorkspace
      ? buildRealizedExecutionWorkspaceFromPersisted({
          base: executionWorkspaceBase,
          workspace: existingExecutionWorkspace,
        })
      : null;
    const executionWorkspace = reusedExecutionWorkspace ?? await realizeExecutionWorkspace({
          base: executionWorkspaceBase,
          config: runtimeConfig,
          issue: issueRef,
          agent: {
            id: agent.id,
            name: agent.name,
            companyId: agent.companyId,
          },
          recorder: workspaceOperationRecorder,
        });
    const resolvedProjectId = executionWorkspace.projectId ?? issueRef?.projectId ?? executionProjectId ?? null;
    const resolvedProjectWorkspaceId = issueRef?.projectWorkspaceId ?? resolvedWorkspace.workspaceId ?? null;
    let persistedExecutionWorkspace = null;
    const nextExecutionWorkspaceMetadataBase = {
      ...(existingExecutionWorkspace?.metadata ?? {}),
      source: executionWorkspace.source,
      createdByRuntime: executionWorkspace.created,
    } as Record<string, unknown>;
    const nextExecutionWorkspaceMetadata = shouldReuseExisting
      ? nextExecutionWorkspaceMetadataBase
      : configSnapshot
        ? mergeExecutionWorkspaceConfig(nextExecutionWorkspaceMetadataBase, configSnapshot)
        : nextExecutionWorkspaceMetadataBase;
    try {
      persistedExecutionWorkspace = shouldReuseExisting && existingExecutionWorkspace
        ? await executionWorkspacesSvc.update(existingExecutionWorkspace.id, {
            cwd: executionWorkspace.cwd,
            repoUrl: executionWorkspace.repoUrl,
            baseRef: executionWorkspace.repoRef,
            branchName: executionWorkspace.branchName,
            providerType: executionWorkspace.strategy === "git_worktree" ? "git_worktree" : "local_fs",
            providerRef: executionWorkspace.worktreePath,
            status: "active",
            lastUsedAt: new Date(),
            metadata: nextExecutionWorkspaceMetadata,
          })
        : resolvedProjectId
          ? await executionWorkspacesSvc.create({
              companyId: agent.companyId,
              projectId: resolvedProjectId,
              projectWorkspaceId: resolvedProjectWorkspaceId,
              sourceIssueId: issueRef?.id ?? null,
              mode:
                requestedExecutionWorkspaceMode === "isolated_workspace"
                  ? "isolated_workspace"
                  : requestedExecutionWorkspaceMode === "operator_branch"
                    ? "operator_branch"
                    : requestedExecutionWorkspaceMode === "agent_default"
                      ? "adapter_managed"
                      : "shared_workspace",
              strategyType: executionWorkspace.strategy === "git_worktree" ? "git_worktree" : "project_primary",
              name: executionWorkspace.branchName ?? issueRef?.identifier ?? `workspace-${agent.id.slice(0, 8)}`,
              status: "active",
              cwd: executionWorkspace.cwd,
              repoUrl: executionWorkspace.repoUrl,
              baseRef: executionWorkspace.repoRef,
              branchName: executionWorkspace.branchName,
              providerType: executionWorkspace.strategy === "git_worktree" ? "git_worktree" : "local_fs",
              providerRef: executionWorkspace.worktreePath,
              lastUsedAt: new Date(),
              openedAt: new Date(),
              metadata: nextExecutionWorkspaceMetadata,
            })
          : null;
    } catch (error) {
      if (executionWorkspace.created) {
        try {
          await cleanupExecutionWorkspaceArtifacts({
            workspace: {
              id: existingExecutionWorkspace?.id ?? `transient-${run.id}`,
              cwd: executionWorkspace.cwd,
              providerType: executionWorkspace.strategy === "git_worktree" ? "git_worktree" : "local_fs",
              providerRef: executionWorkspace.worktreePath,
              branchName: executionWorkspace.branchName,
              repoUrl: executionWorkspace.repoUrl,
              baseRef: executionWorkspace.repoRef,
              projectId: resolvedProjectId,
              projectWorkspaceId: resolvedProjectWorkspaceId,
              sourceIssueId: issueRef?.id ?? null,
              metadata: {
                createdByRuntime: true,
                source: executionWorkspace.source,
              },
            },
            projectWorkspace: {
              cwd: resolvedWorkspace.cwd,
              cleanupCommand: null,
            },
            cleanupCommand: configSnapshot?.cleanupCommand ?? null,
            teardownCommand: configSnapshot?.teardownCommand ?? projectExecutionWorkspacePolicy?.workspaceStrategy?.teardownCommand ?? null,
            recorder: workspaceOperationRecorder,
          });
        } catch (cleanupError) {
          logger.warn(
            {
              runId: run.id,
              issueId,
              executionWorkspaceCwd: executionWorkspace.cwd,
              cleanupError: cleanupError instanceof Error ? cleanupError.message : String(cleanupError),
            },
            "Failed to cleanup realized execution workspace after persistence failure",
          );
        }
      }
      throw error;
    }
    await workspaceOperationRecorder.attachExecutionWorkspaceId(persistedExecutionWorkspace?.id ?? null);
    if (
      existingExecutionWorkspace &&
      persistedExecutionWorkspace &&
      existingExecutionWorkspace.id !== persistedExecutionWorkspace.id &&
      existingExecutionWorkspace.status === "active"
    ) {
      await executionWorkspacesSvc.update(existingExecutionWorkspace.id, {
        status: "idle",
        cleanupReason: null,
      });
    }
    if (issueId && persistedExecutionWorkspace) {
      const nextIssueWorkspaceMode = issueExecutionWorkspaceModeForPersistedWorkspace(persistedExecutionWorkspace.mode);
      const shouldSwitchIssueToExistingWorkspace =
        issueRef?.executionWorkspacePreference === "reuse_existing" ||
        requestedExecutionWorkspaceMode === "isolated_workspace" ||
        requestedExecutionWorkspaceMode === "operator_branch";
      const nextIssuePatch: Record<string, unknown> = {};
      if (issueRef?.executionWorkspaceId !== persistedExecutionWorkspace.id) {
        nextIssuePatch.executionWorkspaceId = persistedExecutionWorkspace.id;
      }
      if (resolvedProjectWorkspaceId && issueRef?.projectWorkspaceId !== resolvedProjectWorkspaceId) {
        nextIssuePatch.projectWorkspaceId = resolvedProjectWorkspaceId;
      }
      if (shouldSwitchIssueToExistingWorkspace) {
        nextIssuePatch.executionWorkspacePreference = "reuse_existing";
        nextIssuePatch.executionWorkspaceSettings = {
          ...(issueExecutionWorkspaceSettings ?? {}),
          mode: nextIssueWorkspaceMode,
        };
      }
      if (Object.keys(nextIssuePatch).length > 0) {
        await issuesSvc.update(issueId, nextIssuePatch);
      }
    }
    if (persistedExecutionWorkspace) {
      context.executionWorkspaceId = persistedExecutionWorkspace.id;
      await db
        .update(heartbeatRuns)
        .set({
          contextSnapshot: context,
          updatedAt: new Date(),
        })
        .where(eq(heartbeatRuns.id, run.id));
    }
    const runtimeSessionResolution = resolveRuntimeSessionParamsForWorkspace({
      agentId: agent.id,
      previousSessionParams,
      resolvedWorkspace: {
        ...resolvedWorkspace,
        cwd: executionWorkspace.cwd,
      },
    });
    const runtimeSessionParams = runtimeSessionResolution.sessionParams;
    const runtimeWorkspaceWarnings = [
      ...resolvedWorkspace.warnings,
      ...executionWorkspace.warnings,
      ...(runtimeSessionResolution.warning ? [runtimeSessionResolution.warning] : []),
      ...(resetTaskSession && sessionResetReason
        ? [
            taskKey
              ? `Skipping saved session resume for task "${taskKey}" because ${sessionResetReason}.`
              : `Skipping saved session resume because ${sessionResetReason}.`,
          ]
        : []),
    ];
    context.paperclipWorkspace = {
      cwd: executionWorkspace.cwd,
      source: executionWorkspace.source,
      mode: effectiveExecutionWorkspaceMode,
      strategy: executionWorkspace.strategy,
      projectId: executionWorkspace.projectId,
      workspaceId: executionWorkspace.workspaceId,
      repoUrl: executionWorkspace.repoUrl,
      repoRef: executionWorkspace.repoRef,
      branchName: executionWorkspace.branchName,
      worktreePath: executionWorkspace.worktreePath,
      agentHome: await (async () => {
        const home = resolveDefaultAgentWorkspaceDir(agent.id);
        await fs.mkdir(home, { recursive: true });
        return home;
      })(),
    };
    context.paperclipWorkspaces = resolvedWorkspace.workspaceHints;
    const selectedEnvironment =
      selectedEnvironmentId === defaultEnvironment.id
        ? defaultEnvironment
        : await environmentsSvc.getById(selectedEnvironmentId);
    if (!selectedEnvironment || selectedEnvironment.companyId !== agent.companyId) {
      throw notFound(`Environment "${selectedEnvironmentId}" not found.`);
    }
    if (selectedEnvironment.status !== "active") {
      throw conflict(`Environment "${selectedEnvironment.name}" is not active.`);
    }
    if (!isEnvironmentDriverSupportedForAdapter(agent.adapterType, selectedEnvironment.driver)) {
      throw conflict(
        `Adapter "${agent.adapterType}" does not support "${selectedEnvironment.driver}" environments.`,
      );
    }

    const selectedEnvironmentRuntimeConfig = await resolveEnvironmentDriverConfigForRuntime(
      db,
      agent.companyId,
      selectedEnvironment,
    );
    let environmentProvider = selectedEnvironment.driver;
    let environmentProviderLeaseId: string | null = null;
    let environmentLeaseMetadata: Record<string, unknown> = {
      driver: selectedEnvironment.driver,
      executionWorkspaceMode: persistedExecutionWorkspace?.mode ?? effectiveExecutionWorkspaceMode,
      cwd: executionWorkspace.cwd,
    };
    let executionTarget: AdapterExecutionTarget | null = null;
    let remoteExecution: SshRemoteExecutionSpec | null = null;

    if (selectedEnvironmentRuntimeConfig.driver === "ssh") {
      const { remoteCwd } = await ensureSshWorkspaceReady(selectedEnvironmentRuntimeConfig.config);
      const paperclipApiUrl = await findReachablePaperclipApiUrlOverSsh({
        config: selectedEnvironmentRuntimeConfig.config,
        candidates: runtimeApiUrlCandidates(),
      });
      remoteExecution = {
        ...selectedEnvironmentRuntimeConfig.config,
        remoteCwd,
        paperclipApiUrl,
      };
      environmentProvider = "ssh";
      environmentProviderLeaseId = `ssh://${selectedEnvironmentRuntimeConfig.config.username}@${selectedEnvironmentRuntimeConfig.config.host}:${selectedEnvironmentRuntimeConfig.config.port}${remoteCwd}`;
      environmentLeaseMetadata = {
        ...environmentLeaseMetadata,
        host: selectedEnvironmentRuntimeConfig.config.host,
        port: selectedEnvironmentRuntimeConfig.config.port,
        username: selectedEnvironmentRuntimeConfig.config.username,
        remoteWorkspacePath: selectedEnvironmentRuntimeConfig.config.remoteWorkspacePath,
        remoteCwd,
        paperclipApiUrl,
      };
    }

    const environmentLease = await environmentsSvc.acquireLease({
      companyId: agent.companyId,
      environmentId: selectedEnvironment.id,
      executionWorkspaceId: persistedExecutionWorkspace?.id ?? null,
      issueId: issueId ?? null,
      heartbeatRunId: run.id,
      leasePolicy: "ephemeral",
      provider: environmentProvider,
      providerLeaseId: environmentProviderLeaseId,
      metadata: environmentLeaseMetadata,
    });
    if (remoteExecution) {
      executionTarget = {
        kind: "remote",
        transport: "ssh",
        environmentId: selectedEnvironment.id,
        leaseId: environmentLease.id,
        remoteCwd: remoteExecution.remoteCwd,
        paperclipApiUrl: remoteExecution.paperclipApiUrl,
        spec: remoteExecution,
      };
    }
    context.paperclipEnvironment = {
      id: selectedEnvironment.id,
      name: selectedEnvironment.name,
      driver: selectedEnvironment.driver,
      leaseId: environmentLease.id,
      ...(typeof environmentLease.metadata?.remoteCwd === "string"
        ? {
            remoteCwd: environmentLease.metadata.remoteCwd,
            host:
              typeof environmentLease.metadata?.host === "string"
                ? environmentLease.metadata.host
                : undefined,
            port:
              typeof environmentLease.metadata?.port === "number"
                ? environmentLease.metadata.port
                : undefined,
            username:
              typeof environmentLease.metadata?.username === "string"
                ? environmentLease.metadata.username
                : undefined,
          }
        : {}),
    };
    await logActivity(db, {
      companyId: agent.companyId,
      actorType: "agent",
      actorId: agent.id,
      agentId: agent.id,
      runId: run.id,
      action: "environment.lease_acquired",
      entityType: "environment_lease",
      entityId: environmentLease.id,
      details: {
        environmentId: selectedEnvironment.id,
        driver: selectedEnvironment.driver,
        leasePolicy: environmentLease.leasePolicy,
        provider: environmentLease.provider,
        executionWorkspaceId: environmentLease.executionWorkspaceId,
        issueId,
      },
    }).catch((err) => {
      logger.warn({ err, runId: run.id }, "failed to log environment lease acquisition");
    });
    const runtimeServiceIntents = (() => {
      const runtimeConfig = parseObject(resolvedConfig.workspaceRuntime);
      return Array.isArray(runtimeConfig.services)
        ? runtimeConfig.services.filter(
            (value): value is Record<string, unknown> => typeof value === "object" && value !== null,
          )
        : [];
    })();
    if (runtimeServiceIntents.length > 0) {
      context.paperclipRuntimeServiceIntents = runtimeServiceIntents;
    } else {
      delete context.paperclipRuntimeServiceIntents;
    }
    if (executionWorkspace.projectId && !readNonEmptyString(context.projectId)) {
      context.projectId = executionWorkspace.projectId;
    }
    await db
      .update(heartbeatRuns)
      .set({
        contextSnapshot: context,
        updatedAt: new Date(),
      })
      .where(eq(heartbeatRuns.id, run.id));
    const runtimeSessionFallback = taskKey || resetTaskSession ? null : runtime.sessionId;
    let previousSessionDisplayId = truncateDisplayId(
      explicitResumeSessionDisplayId ??
        taskSessionForRun?.sessionDisplayId ??
        (sessionCodec.getDisplayId ? sessionCodec.getDisplayId(runtimeSessionParams) : null) ??
        readNonEmptyString(runtimeSessionParams?.sessionId) ??
        runtimeSessionFallback,
    );
    let runtimeSessionIdForAdapter =
      readNonEmptyString(runtimeSessionParams?.sessionId) ?? runtimeSessionFallback;
    let runtimeSessionParamsForAdapter = runtimeSessionParams;

    const sessionCompaction = await evaluateSessionCompaction({
      agent,
      sessionId: previousSessionDisplayId ?? runtimeSessionIdForAdapter,
      issueId,
      continuationSummaryBody: continuationSummary?.body ?? null,
    });
    if (sessionCompaction.rotate) {
      context.paperclipSessionHandoffMarkdown = sessionCompaction.handoffMarkdown;
      context.paperclipSessionRotationReason = sessionCompaction.reason;
      context.paperclipPreviousSessionId = previousSessionDisplayId ?? runtimeSessionIdForAdapter;
      runtimeSessionIdForAdapter = null;
      runtimeSessionParamsForAdapter = null;
      previousSessionDisplayId = null;
      if (sessionCompaction.reason) {
        runtimeWorkspaceWarnings.push(
          `Starting a fresh session because ${sessionCompaction.reason}.`,
        );
      }
    } else {
      delete context.paperclipSessionHandoffMarkdown;
      delete context.paperclipSessionRotationReason;
      delete context.paperclipPreviousSessionId;
    }

    const runtimeForAdapter = {
      sessionId: runtimeSessionIdForAdapter,
      sessionParams: runtimeSessionParamsForAdapter,
      sessionDisplayId: previousSessionDisplayId,
      taskKey,
    };

    let seq = 1;
    let handle: RunLogHandle | null = null;
    let stdoutExcerpt = "";
    let stderrExcerpt = "";
    try {
      const startedAt = run.startedAt ?? new Date();
      const runningWithSession = await db
        .update(heartbeatRuns)
        .set({
          startedAt,
          sessionIdBefore: runtimeForAdapter.sessionDisplayId ?? runtimeForAdapter.sessionId,
          contextSnapshot: context,
          updatedAt: new Date(),
        })
        .where(eq(heartbeatRuns.id, run.id))
        .returning()
        .then((rows) => rows[0] ?? null);
      if (runningWithSession) run = runningWithSession;

      const runningAgent = await db
        .update(agents)
        .set({ status: "running", updatedAt: new Date() })
        .where(eq(agents.id, agent.id))
        .returning()
        .then((rows) => rows[0] ?? null);

      if (runningAgent) {
        publishLiveEvent({
          companyId: runningAgent.companyId,
          type: "agent.status",
          payload: {
            agentId: runningAgent.id,
            status: runningAgent.status,
            outcome: "running",
          },
        });
      }

      const currentRun = run;
      await appendRunEvent(currentRun, seq++, {
        eventType: "lifecycle",
        stream: "system",
        level: "info",
        message: "run started",
      });

      handle = await runLogStore.begin({
        companyId: run.companyId,
        agentId: run.agentId,
        runId,
      });

      await db
        .update(heartbeatRuns)
        .set({
          logStore: handle.store,
          logRef: handle.logRef,
          updatedAt: new Date(),
        })
        .where(eq(heartbeatRuns.id, runId));

      const currentUserRedactionOptions = await getCurrentUserRedactionOptions();
      const onLog = async (stream: "stdout" | "stderr", chunk: string) => {
        const sanitizedChunk = compactRunLogChunk(
          redactCurrentUserText(chunk, currentUserRedactionOptions),
        );
        if (stream === "stdout") stdoutExcerpt = appendExcerpt(stdoutExcerpt, sanitizedChunk);
        if (stream === "stderr") stderrExcerpt = appendExcerpt(stderrExcerpt, sanitizedChunk);
        const ts = new Date().toISOString();

        if (handle) {
          await runLogStore.append(handle, {
            stream,
            chunk: sanitizedChunk,
            ts,
          });
        }

        const payloadChunk =
          sanitizedChunk.length > MAX_LIVE_LOG_CHUNK_BYTES
            ? sanitizedChunk.slice(sanitizedChunk.length - MAX_LIVE_LOG_CHUNK_BYTES)
            : sanitizedChunk;

        publishLiveEvent({
          companyId: run.companyId,
          type: "heartbeat.run.log",
          payload: {
            runId: run.id,
            agentId: run.agentId,
            ts,
            stream,
            chunk: payloadChunk,
            truncated: payloadChunk.length !== sanitizedChunk.length,
          },
        });
      };
      if (runScopedMentionedSkillKeys.length > 0) {
        await onLog(
          "stdout",
          `[paperclip] Enabled run-scoped skills from issue mentions: ${runScopedMentionedSkillKeys.join(", ")}\n`,
        );
      }
      for (const warning of runtimeWorkspaceWarnings) {
        const logEntry = formatRuntimeWorkspaceWarningLog(warning);
        await onLog(logEntry.stream, logEntry.chunk);
      }
      const adapterEnv = Object.fromEntries(
        Object.entries(parseObject(resolvedConfig.env)).filter(
          (entry): entry is [string, string] => typeof entry[0] === "string" && typeof entry[1] === "string",
        ),
      );
      const runtimeServices = await ensureRuntimeServicesForRun({
        db,
        runId: run.id,
        agent: {
          id: agent.id,
          name: agent.name,
          companyId: agent.companyId,
        },
        issue: issueRef,
        workspace: executionWorkspace,
        executionWorkspaceId: persistedExecutionWorkspace?.id ?? issueRef?.executionWorkspaceId ?? null,
        config: effectiveResolvedConfig,
        adapterEnv,
        onLog,
      });
      if (runtimeServices.length > 0) {
        context.paperclipRuntimeServices = runtimeServices;
        context.paperclipRuntimePrimaryUrl =
          runtimeServices.find((service) => readNonEmptyString(service.url))?.url ?? null;
        await db
          .update(heartbeatRuns)
          .set({
            contextSnapshot: context,
            updatedAt: new Date(),
          })
          .where(eq(heartbeatRuns.id, run.id));
      }
      if (issueId && (executionWorkspace.created || runtimeServices.some((service) => !service.reused))) {
        try {
          await issuesSvc.addComment(
            issueId,
            buildWorkspaceReadyComment({
              workspace: executionWorkspace,
              runtimeServices,
            }),
            { agentId: agent.id, runId: run.id },
          );
        } catch (err) {
          await onLog(
            "stderr",
            `[paperclip] Failed to post workspace-ready comment: ${err instanceof Error ? err.message : String(err)}\n`,
          );
        }
      }
      const onAdapterMeta = async (meta: AdapterInvocationMeta) => {
        if (meta.env && secretKeys.size > 0) {
          for (const key of secretKeys) {
            if (key in meta.env) meta.env[key] = "***REDACTED***";
          }
        }
        await appendRunEvent(currentRun, seq++, {
          eventType: "adapter.invoke",
          stream: "system",
          level: "info",
          message: "adapter invocation",
          payload: meta as unknown as Record<string, unknown>,
        });
      };

      const adapter = getServerAdapter(agent.adapterType);
      const authToken = adapter.supportsLocalAgentJwt
        ? createLocalAgentJwt(agent.id, agent.companyId, agent.adapterType, run.id)
        : null;
      if (adapter.supportsLocalAgentJwt && !authToken) {
        logger.warn(
          {
            companyId: agent.companyId,
            agentId: agent.id,
            runId: run.id,
            adapterType: agent.adapterType,
          },
          "local agent jwt secret missing or invalid; running without injected PAPERCLIP_API_KEY",
        );
      }
      const adapterResult = await adapter.execute({
        runId: run.id,
        agent,
        runtime: runtimeForAdapter,
        config: runtimeConfig,
        context,
        executionTarget,
        executionTransport: remoteExecution
          ? { remoteExecution: remoteExecution as unknown as Record<string, unknown> }
          : undefined,
        onLog,
        onMeta: onAdapterMeta,
        onSpawn: async (meta) => {
          await persistRunProcessMetadata(run.id, {
            pid: meta.pid,
            processGroupId:
              "processGroupId" in meta && typeof meta.processGroupId === "number"
                ? meta.processGroupId
                : null,
            startedAt: meta.startedAt,
          });
        },
        authToken: authToken ?? undefined,
      });
      const adapterManagedRuntimeServices = adapterResult.runtimeServices
        ? await persistAdapterManagedRuntimeServices({
            db,
            adapterType: agent.adapterType,
            runId: run.id,
            agent: {
              id: agent.id,
              name: agent.name,
              companyId: agent.companyId,
            },
            issue: issueRef,
            workspace: executionWorkspace,
            reports: adapterResult.runtimeServices,
          })
        : [];
      if (adapterManagedRuntimeServices.length > 0) {
        const combinedRuntimeServices = [
          ...runtimeServices,
          ...adapterManagedRuntimeServices,
        ];
        context.paperclipRuntimeServices = combinedRuntimeServices;
        context.paperclipRuntimePrimaryUrl =
          combinedRuntimeServices.find((service) => readNonEmptyString(service.url))?.url ?? null;
        await db
          .update(heartbeatRuns)
          .set({
            contextSnapshot: context,
            updatedAt: new Date(),
          })
          .where(eq(heartbeatRuns.id, run.id));
        if (issueId) {
          try {
            await issuesSvc.addComment(
              issueId,
              buildWorkspaceReadyComment({
                workspace: executionWorkspace,
                runtimeServices: adapterManagedRuntimeServices,
              }),
              { agentId: agent.id, runId: run.id },
            );
          } catch (err) {
            await onLog(
              "stderr",
              `[paperclip] Failed to post adapter-managed runtime comment: ${err instanceof Error ? err.message : String(err)}\n`,
            );
          }
        }
      }
      const nextSessionState = resolveNextSessionState({
        codec: sessionCodec,
        adapterResult,
        previousParams: previousSessionParams,
        previousDisplayId: runtimeForAdapter.sessionDisplayId,
        previousLegacySessionId: runtimeForAdapter.sessionId,
      });
      const rawUsage = normalizeUsageTotals(adapterResult.usage);
      const sessionUsageResolution = await resolveNormalizedUsageForSession({
        agentId: agent.id,
        runId: run.id,
        sessionId: nextSessionState.displayId ?? nextSessionState.legacySessionId,
        rawUsage,
      });
      const normalizedUsage = sessionUsageResolution.normalizedUsage;

      let outcome: "succeeded" | "failed" | "cancelled" | "timed_out";
      const latestRun = await getRun(run.id);
      if (isHeartbeatRunTerminalStatus(latestRun?.status)) {
        outcome = latestRun.status;
      } else if (adapterResult.timedOut) {
        outcome = "timed_out";
      } else if ((adapterResult.exitCode ?? 0) === 0 && !adapterResult.errorMessage) {
        outcome = "succeeded";
      } else {
        outcome = "failed";
      }
      const runErrorMessage =
        outcome === "cancelled"
          ? (latestRun?.error ?? adapterResult.errorMessage ?? "Cancelled")
          : outcome === "succeeded"
            ? null
            : redactCurrentUserText(
                adapterResult.errorMessage ?? (outcome === "timed_out" ? "Timed out" : "Adapter failed"),
                currentUserRedactionOptions,
              );
      const runErrorCode =
        outcome === "timed_out"
          ? "timeout"
          : outcome === "cancelled"
            ? (latestRun?.errorCode ?? "cancelled")
            : outcome === "failed"
              ? (adapterResult.errorCode ?? "adapter_failed")
              : null;

      let logSummary: { bytes: number; sha256?: string; compressed: boolean } | null = null;
      if (handle) {
        logSummary = await runLogStore.finalize(handle);
      }

      const status =
        outcome === "succeeded"
          ? "succeeded"
          : outcome === "cancelled"
            ? "cancelled"
            : outcome === "timed_out"
              ? "timed_out"
              : "failed";

      const usageJson =
        normalizedUsage || adapterResult.costUsd != null
          ? ({
              ...(normalizedUsage ?? {}),
              ...(rawUsage ? {
                rawInputTokens: rawUsage.inputTokens,
                rawCachedInputTokens: rawUsage.cachedInputTokens,
                rawOutputTokens: rawUsage.outputTokens,
              } : {}),
              ...(sessionUsageResolution.derivedFromSessionTotals ? { usageSource: "session_delta" } : {}),
              ...((nextSessionState.displayId ?? nextSessionState.legacySessionId)
                ? { persistedSessionId: nextSessionState.displayId ?? nextSessionState.legacySessionId }
                : {}),
              sessionReused: runtimeForAdapter.sessionId != null || runtimeForAdapter.sessionDisplayId != null,
              taskSessionReused: taskSessionForRun != null,
              freshSession: runtimeForAdapter.sessionId == null && runtimeForAdapter.sessionDisplayId == null,
              sessionRotated: sessionCompaction.rotate,
              sessionRotationReason: sessionCompaction.reason,
              provider: readNonEmptyString(adapterResult.provider) ?? "unknown",
              biller: resolveLedgerBiller(adapterResult),
              model: readNonEmptyString(adapterResult.model) ?? "unknown",
              ...(adapterResult.costUsd != null ? { costUsd: adapterResult.costUsd } : {}),
              billingType: normalizeLedgerBillingType(adapterResult.billingType),
            } as Record<string, unknown>)
          : null;

      const persistedResultJson = mergeHeartbeatRunResultJson(
        mergeRunStopMetadataForAgent(agent, outcome, {
          resultJson: adapterResult.resultJson ?? null,
          errorCode: runErrorCode,
          errorMessage: runErrorMessage,
        }),
        adapterResult.summary ?? null,
      );

      let persistedRun = await setRunStatus(run.id, status, {
        finishedAt: new Date(),
        error: runErrorMessage,
        errorCode: runErrorCode,
        exitCode: adapterResult.exitCode,
        signal: adapterResult.signal,
        usageJson,
        resultJson: persistedResultJson,
        sessionIdAfter: nextSessionState.displayId ?? nextSessionState.legacySessionId,
        stdoutExcerpt,
        stderrExcerpt,
        logBytes: logSummary?.bytes,
        logSha256: logSummary?.sha256,
        logCompressed: logSummary?.compressed ?? false,
      });
      if (persistedRun) {
        persistedRun = await classifyAndPersistRunLiveness(persistedRun, persistedResultJson) ?? persistedRun;
      }

      await setWakeupStatus(run.wakeupRequestId, outcome === "succeeded" ? "completed" : status, {
        finishedAt: new Date(),
        error: runErrorMessage,
      });

      const finalizedRun = persistedRun ?? (await getRun(run.id));
      if (finalizedRun) {
        await appendRunEvent(finalizedRun, seq++, {
          eventType: "lifecycle",
          stream: "system",
          level: outcome === "succeeded" ? "info" : "error",
          message: `run ${outcome}`,
          payload: {
            status,
            exitCode: adapterResult.exitCode,
          },
        });
        const livenessRun = finalizedRun;
        await refreshContinuationSummaryForRun(livenessRun, agent);
        if (issueId && outcome === "succeeded") {
          try {
            const existingRunComment = await findRunIssueComment(livenessRun.id, livenessRun.companyId, issueId);
            if (!existingRunComment) {
              const issueComment = buildHeartbeatRunIssueComment(persistedResultJson);
              if (issueComment) {
                await issuesSvc.addComment(issueId, issueComment, { agentId: agent.id, runId: livenessRun.id });
              }
            }
          } catch (err) {
            await onLog(
              "stderr",
              `[paperclip] Failed to post run summary comment: ${err instanceof Error ? err.message : String(err)}\n`,
            );
          }
        }
        if (outcome === "failed" && livenessRun.errorCode === "codex_transient_upstream") {
          await scheduleBoundedRetryForRun(livenessRun, agent);
        }
        await finalizeIssueCommentPolicy(livenessRun, agent);
        await releaseIssueExecutionAndPromote(livenessRun);
        await handleRunLivenessContinuation(livenessRun);
      }

      if (finalizedRun) {
        await updateRuntimeState(agent, finalizedRun, adapterResult, {
          legacySessionId: nextSessionState.legacySessionId,
        }, normalizedUsage);
        if (taskKey) {
          if (adapterResult.clearSession || (!nextSessionState.params && !nextSessionState.displayId)) {
            await clearTaskSessions(agent.companyId, agent.id, {
              taskKey,
              adapterType: agent.adapterType,
            });
          } else {
            await upsertTaskSession({
              companyId: agent.companyId,
              agentId: agent.id,
              adapterType: agent.adapterType,
              taskKey,
              sessionParamsJson: nextSessionState.params,
              sessionDisplayId: nextSessionState.displayId,
              lastRunId: finalizedRun.id,
              lastError: outcome === "succeeded" ? null : (adapterResult.errorMessage ?? "run_failed"),
            });
          }
        }
      }
      await finalizeAgentStatus(agent.id, outcome);
    } catch (err) {
      const message = redactCurrentUserText(
        err instanceof Error ? err.message : "Unknown adapter failure",
        await getCurrentUserRedactionOptions(),
      );
      logger.error({ err, runId }, "heartbeat execution failed");

      let logSummary: { bytes: number; sha256?: string; compressed: boolean } | null = null;
      if (handle) {
        try {
          logSummary = await runLogStore.finalize(handle);
        } catch (finalizeErr) {
          logger.warn({ err: finalizeErr, runId }, "failed to finalize run log after error");
        }
      }

      const failedRun = await setRunStatus(run.id, "failed", {
        error: message,
        errorCode: "adapter_failed",
        finishedAt: new Date(),
        resultJson: mergeRunStopMetadataForAgent(agent, "failed", {
          errorCode: "adapter_failed",
          errorMessage: message,
        }),
        stdoutExcerpt,
        stderrExcerpt,
        logBytes: logSummary?.bytes,
        logSha256: logSummary?.sha256,
        logCompressed: logSummary?.compressed ?? false,
      });
      await setWakeupStatus(run.wakeupRequestId, "failed", {
        finishedAt: new Date(),
        error: message,
      });

      if (failedRun) {
        await appendRunEvent(failedRun, seq++, {
          eventType: "error",
          stream: "system",
          level: "error",
          message,
        });
        const livenessRun = await classifyAndPersistRunLiveness(failedRun) ?? failedRun;
        await refreshContinuationSummaryForRun(livenessRun, agent);
        await finalizeIssueCommentPolicy(livenessRun, agent);
        await releaseIssueExecutionAndPromote(livenessRun);

        await updateRuntimeState(agent, livenessRun, {
          exitCode: null,
          signal: null,
          timedOut: false,
          errorMessage: message,
        }, {
          legacySessionId: runtimeForAdapter.sessionId,
        });

        if (taskKey && (previousSessionParams || previousSessionDisplayId || taskSession)) {
          await upsertTaskSession({
            companyId: agent.companyId,
            agentId: agent.id,
            adapterType: agent.adapterType,
            taskKey,
            sessionParamsJson: previousSessionParams,
            sessionDisplayId: previousSessionDisplayId,
            lastRunId: failedRun.id,
            lastError: message,
          });
        }
      }

      await finalizeAgentStatus(agent.id, "failed");
    }
    } catch (outerErr) {
          // Setup code before adapter.execute threw (e.g. ensureRuntimeState, resolveWorkspaceForRun).
          // The inner catch did not fire, so we must record the failure here.
          const message = outerErr instanceof Error ? outerErr.message : "Unknown setup failure";
          logger.error({ err: outerErr, runId }, "heartbeat execution setup failed");
          const setupFailureAgent = await getAgent(run.agentId).catch(() => null);
          await setRunStatus(runId, "failed", {
            error: message,
            errorCode: "adapter_failed",
            finishedAt: new Date(),
            ...(setupFailureAgent ? {
              resultJson: mergeRunStopMetadataForAgent(setupFailureAgent, "failed", {
                errorCode: "adapter_failed",
                errorMessage: message,
              }),
            } : {}),
          }).catch(() => undefined);
          await setWakeupStatus(run.wakeupRequestId, "failed", {
            finishedAt: new Date(),
            error: message,
          }).catch(() => undefined);
          const failedRun = await getRun(runId).catch(() => null);
          if (failedRun) {
            // Emit a run-log event so the failure is visible in the run timeline,
            // consistent with what the inner catch block does for adapter failures.
            await appendRunEvent(failedRun, 1, {
              eventType: "error",
              stream: "system",
              level: "error",
              message,
            }).catch(() => undefined);
            const livenessRun = await classifyAndPersistRunLiveness(failedRun).catch(() => failedRun);
            const failedAgent = setupFailureAgent ?? await getAgent(run.agentId).catch(() => null);
            if (failedAgent) {
              await refreshContinuationSummaryForRun(livenessRun, failedAgent).catch(() => undefined);
              await finalizeIssueCommentPolicy(livenessRun, failedAgent).catch(() => undefined);
            }
            await releaseIssueExecutionAndPromote(livenessRun).catch(() => undefined);
          }
          // Ensure the agent is not left stuck in "running" if the inner catch handler's
          // DB calls threw (e.g. a transient DB error in finalizeAgentStatus).
          await finalizeAgentStatus(run.agentId, "failed").catch(() => undefined);
        } finally {
          const latestRun = await getRun(run.id).catch(() => null);
          const releasedLeases = await environmentsSvc
            .releaseLeasesForRun(run.id, leaseReleaseStatusForRunStatus(latestRun?.status))
            .catch((err) => {
              logger.warn({ err, runId: run.id }, "failed to release environment leases for heartbeat run");
              return [];
            });
          for (const lease of releasedLeases) {
            await logActivity(db, {
              companyId: run.companyId,
              actorType: "agent",
              actorId: run.agentId,
              agentId: run.agentId,
              runId: run.id,
              action: "environment.lease_released",
              entityType: "environment_lease",
              entityId: lease.id,
              details: {
                environmentId: lease.environmentId,
                driver: lease.metadata?.driver ?? "local",
                leasePolicy: lease.leasePolicy,
                provider: lease.provider,
                executionWorkspaceId: lease.executionWorkspaceId,
                issueId: lease.issueId,
                status: lease.status,
              },
            }).catch(() => undefined);
          }
          await releaseRuntimeServicesForRun(run.id).catch(() => undefined);
          activeRunExecutions.delete(run.id);
          await startNextQueuedRunForAgent(run.agentId);
        }
  }

  function buildImmediateExecutionPathRecoveryComment(input: {
    status: "todo" | "in_progress";
    latestRun: Pick<typeof heartbeatRuns.$inferSelect, "error" | "errorCode"> | null | undefined;
  }) {
    const failureSummary = summarizeRunFailureForIssueComment(input.latestRun);
    if (input.status === "todo") {
      return (
        "Paperclip automatically retried dispatch for this assigned `todo` issue during terminal run recovery, " +
        `but it still has no live execution path.${failureSummary ?? ""} ` +
        "Moving it to `blocked` so it is visible for intervention."
      );
    }

    return (
      "Paperclip automatically retried continuation for this assigned `in_progress` issue during terminal run " +
      `recovery, but it still has no live execution path.${failureSummary ?? ""} ` +
      "Moving it to `blocked` so it is visible for intervention."
    );
  }

  async function releaseIssueExecutionAndPromote(run: typeof heartbeatRuns.$inferSelect) {
    const runContext = parseObject(run.contextSnapshot);
    const contextIssueId = readNonEmptyString(runContext.issueId);
    const taskKey = deriveTaskKeyWithHeartbeatFallback(runContext, null);
    const recoveryAgent = await getAgent(run.agentId);
    const recoveryAgentInvokable =
      recoveryAgent &&
      recoveryAgent.status !== "paused" &&
      recoveryAgent.status !== "terminated" &&
      recoveryAgent.status !== "pending_approval";
    const recoverySessionBefore = recoveryAgentInvokable
      ? await resolveSessionBeforeForWakeup(recoveryAgent, taskKey)
      : null;
    const recoveryAgentNameKey = normalizeAgentNameKey(recoveryAgent?.name);

    const promotionResult = await db.transaction(async (tx) => {
      if (contextIssueId) {
        await tx.execute(
          sql`select id from issues where company_id = ${run.companyId} and id = ${contextIssueId} for update`,
        );
      } else {
        await tx.execute(
          sql`select id from issues where company_id = ${run.companyId} and execution_run_id = ${run.id} for update`,
        );
      }

      let issue = await tx
        .select({
          id: issues.id,
          companyId: issues.companyId,
          identifier: issues.identifier,
          status: issues.status,
          assigneeAgentId: issues.assigneeAgentId,
          assigneeUserId: issues.assigneeUserId,
          executionRunId: issues.executionRunId,
        })
        .from(issues)
        .where(
          and(
            eq(issues.companyId, run.companyId),
            contextIssueId ? eq(issues.id, contextIssueId) : eq(issues.executionRunId, run.id),
          ),
        )
        .then((rows) => rows[0] ?? null);

      if (!issue) return null;
      if (issue.executionRunId && issue.executionRunId !== run.id) return null;

      if (issue.executionRunId === run.id) {
        await tx
          .update(issues)
          .set({
            executionRunId: null,
            executionAgentNameKey: null,
            executionLockedAt: null,
            updatedAt: new Date(),
          })
          .where(eq(issues.id, issue.id));
      }

      while (true) {
        const deferred = await tx
          .select()
          .from(agentWakeupRequests)
          .where(
            and(
              eq(agentWakeupRequests.companyId, issue.companyId),
              eq(agentWakeupRequests.status, "deferred_issue_execution"),
              sql`${agentWakeupRequests.payload} ->> 'issueId' = ${issue.id}`,
            ),
          )
          .orderBy(asc(agentWakeupRequests.requestedAt))
          .limit(1)
          .then((rows) => rows[0] ?? null);

        if (!deferred) break;

        const deferredAgent = await tx
          .select()
          .from(agents)
          .where(eq(agents.id, deferred.agentId))
          .then((rows) => rows[0] ?? null);

        if (
          !deferredAgent ||
          deferredAgent.companyId !== issue.companyId ||
          deferredAgent.status === "paused" ||
          deferredAgent.status === "terminated" ||
          deferredAgent.status === "pending_approval"
        ) {
          await tx
            .update(agentWakeupRequests)
            .set({
              status: "failed",
              finishedAt: new Date(),
              error: "Deferred wake could not be promoted: agent is not invokable",
              updatedAt: new Date(),
            })
            .where(eq(agentWakeupRequests.id, deferred.id));
          continue;
        }

        const deferredPayload = parseObject(deferred.payload);
        const deferredContextSeed = parseObject(deferredPayload[DEFERRED_WAKE_CONTEXT_KEY]);
        const activePauseHold = await treeControlSvc.getActivePauseHoldGate(issue.companyId, issue.id);
        const treeHoldInteractionWake = activePauseHold && allowsIssueInteractionWake(deferredContextSeed);
        if (activePauseHold && !treeHoldInteractionWake) {
          await tx
            .update(agentWakeupRequests)
            .set({
              status: "cancelled",
              finishedAt: new Date(),
              error: "Deferred wake suppressed by active subtree pause hold",
              updatedAt: new Date(),
            })
            .where(eq(agentWakeupRequests.id, deferred.id));
          continue;
        }

        const promotedContextSeed: Record<string, unknown> = { ...deferredContextSeed };
        if (activePauseHold) {
          promotedContextSeed.treeHoldInteraction = true;
          promotedContextSeed.activeTreeHold = {
            holdId: activePauseHold.holdId,
            rootIssueId: activePauseHold.rootIssueId,
            mode: activePauseHold.mode,
            reason: activePauseHold.reason,
            releasePolicy: activePauseHold.releasePolicy,
            interaction: true,
          };
        }
        const deferredCommentIds = extractWakeCommentIds(deferredContextSeed);
        const shouldReopenDeferredCommentWake =
          deferredCommentIds.length > 0 && (issue.status === "done" || issue.status === "cancelled");
        let reopenedActivity: LogActivityInput | null = null;

        if (shouldReopenDeferredCommentWake) {
          const reopenedFromStatus = issue.status;
          const reopenedIssue = await issuesSvc.update(
            issue.id,
            {
              status: "todo",
              executionState: null,
            },
            tx,
          );
          if (reopenedIssue) {
            issue = {
              ...issue,
              identifier: reopenedIssue.identifier,
              status: reopenedIssue.status,
              executionRunId: reopenedIssue.executionRunId,
            };
            if (!readNonEmptyString(promotedContextSeed.reopenedFrom)) {
              promotedContextSeed.reopenedFrom = reopenedFromStatus;
            }
            reopenedActivity = {
              companyId: issue.companyId,
              actorType: "system",
              actorId: "heartbeat",
              agentId: deferred.agentId,
              runId: run.id,
              action: "issue.updated",
              entityType: "issue",
              entityId: issue.id,
              details: {
                status: "todo",
                reopened: true,
                reopenedFrom: reopenedFromStatus,
                source: "deferred_comment_wake",
                identifier: issue.identifier,
              },
            };
          }
        }

        const promotedReason = readNonEmptyString(deferred.reason) ?? "issue_execution_promoted";
        const promotedSource =
          (readNonEmptyString(deferred.source) as WakeupOptions["source"]) ?? "automation";
        const promotedTriggerDetail =
          (readNonEmptyString(deferred.triggerDetail) as WakeupOptions["triggerDetail"]) ?? null;
        const promotedPayload = deferredPayload;
        delete promotedPayload[DEFERRED_WAKE_CONTEXT_KEY];

        const {
          contextSnapshot: promotedContextSnapshot,
          taskKey: promotedTaskKey,
        } = enrichWakeContextSnapshot({
          contextSnapshot: promotedContextSeed,
          reason: promotedReason,
          source: promotedSource,
          triggerDetail: promotedTriggerDetail,
          payload: promotedPayload,
        });

        const sessionBefore =
          readNonEmptyString(promotedContextSnapshot.resumeSessionDisplayId) ??
          await resolveSessionBeforeForWakeup(deferredAgent, promotedTaskKey);
        const promotedContinuationAttempt = readContinuationAttempt(
          promotedContextSnapshot.livenessContinuationAttempt,
        );
        const now = new Date();
        const newRun = await tx
          .insert(heartbeatRuns)
          .values({
            companyId: deferredAgent.companyId,
            agentId: deferredAgent.id,
            invocationSource: promotedSource,
            triggerDetail: promotedTriggerDetail,
            status: "queued",
            wakeupRequestId: deferred.id,
            contextSnapshot: promotedContextSnapshot,
            sessionIdBefore: sessionBefore,
            continuationAttempt: promotedContinuationAttempt,
          })
          .returning()
          .then((rows) => rows[0]);

        await tx
          .update(agentWakeupRequests)
          .set({
            status: "queued",
            reason: "issue_execution_promoted",
            runId: newRun.id,
            claimedAt: null,
            finishedAt: null,
            error: null,
            updatedAt: now,
          })
          .where(eq(agentWakeupRequests.id, deferred.id));

        await tx
          .update(issues)
          .set({
            executionRunId: newRun.id,
            executionAgentNameKey: normalizeAgentNameKey(deferredAgent.name),
            executionLockedAt: now,
            updatedAt: now,
          })
          .where(eq(issues.id, issue.id));

        return {
          kind: "promoted" as const,
          run: newRun,
          reopenedActivity,
        };
      }

      const issueNeedsImmediateRecovery =
        (issue.status === "todo" || issue.status === "in_progress") &&
        !issue.assigneeUserId &&
        issue.assigneeAgentId === run.agentId &&
        (run.status === "failed" || run.status === "timed_out" || run.status === "cancelled");

      if (!issueNeedsImmediateRecovery) {
        return { kind: "released" as const };
      }

      const existingExecutionPath = await tx
        .select({ id: heartbeatRuns.id })
        .from(heartbeatRuns)
        .where(
          and(
            eq(heartbeatRuns.companyId, issue.companyId),
            inArray(heartbeatRuns.status, [...EXECUTION_PATH_HEARTBEAT_RUN_STATUSES]),
            sql`${heartbeatRuns.contextSnapshot} ->> 'issueId' = ${issue.id}`,
            sql`${heartbeatRuns.id} <> ${run.id}`,
          ),
        )
        .limit(1)
        .then((rows) => rows[0] ?? null);
      if (existingExecutionPath) {
        return { kind: "released" as const };
      }

      const shouldBlockImmediately =
        !recoveryAgentInvokable ||
        !recoveryAgent ||
        didAutomaticRecoveryFail(run, issue.status === "todo" ? "assignment_recovery" : "issue_continuation_needed");
      if (shouldBlockImmediately) {
        const comment = buildImmediateExecutionPathRecoveryComment({
          status: issue.status as "todo" | "in_progress",
          latestRun: run,
        });
        await tx
          .update(issues)
          .set({
            status: "blocked",
            updatedAt: new Date(),
          })
          .where(eq(issues.id, issue.id));
        return {
          kind: "blocked" as const,
          issueId: issue.id,
          issueIdentifier: issue.identifier,
          previousStatus: issue.status,
          comment,
        };
      }

      const retryReason = issue.status === "todo" ? "assignment_recovery" : "issue_continuation_needed";
      const recoveryReason = issue.status === "todo" ? "issue_assignment_recovery" : "issue_continuation_needed";
      const recoverySource =
        issue.status === "todo" ? "issue.assignment_recovery" : "issue.continuation_recovery";
      const now = new Date();
      const wakeupRequest = await tx
        .insert(agentWakeupRequests)
        .values({
          companyId: issue.companyId,
          agentId: recoveryAgent.id,
          source: "automation",
          triggerDetail: "system",
          reason: recoveryReason,
          payload: {
            issueId: issue.id,
            retryOfRunId: run.id,
          },
          status: "queued",
          requestedByActorType: "system",
          requestedByActorId: null,
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      const queuedRun = await tx
        .insert(heartbeatRuns)
        .values({
          companyId: issue.companyId,
          agentId: recoveryAgent.id,
          invocationSource: "automation",
          triggerDetail: "system",
          status: "queued",
          wakeupRequestId: wakeupRequest.id,
          contextSnapshot: {
            issueId: issue.id,
            taskId: issue.id,
            wakeReason: recoveryReason,
            retryReason,
            source: recoverySource,
            retryOfRunId: run.id,
          },
          sessionIdBefore: recoverySessionBefore,
          retryOfRunId: run.id,
          updatedAt: now,
        })
        .returning()
        .then((rows) => rows[0]);

      await tx
        .update(agentWakeupRequests)
        .set({
          runId: queuedRun.id,
          updatedAt: now,
        })
        .where(eq(agentWakeupRequests.id, wakeupRequest.id));

      await tx
        .update(issues)
        .set({
          executionRunId: queuedRun.id,
          executionAgentNameKey: recoveryAgentNameKey,
          executionLockedAt: now,
          updatedAt: now,
        })
        .where(eq(issues.id, issue.id));

      return {
        kind: "queued_recovery" as const,
        run: queuedRun,
      };
    });

    if (promotionResult?.kind === "blocked") {
      await issuesSvc.addComment(promotionResult.issueId, promotionResult.comment, {});
      await logActivity(db, {
        companyId: run.companyId,
        actorType: "system",
        actorId: "system",
        agentId: null,
        runId: run.id,
        action: "issue.updated",
        entityType: "issue",
        entityId: promotionResult.issueId,
        details: {
          identifier: promotionResult.issueIdentifier,
          status: "blocked",
          previousStatus: promotionResult.previousStatus,
          source: "heartbeat.release_issue_execution_and_promote",
          latestRunId: run.id,
          latestRunStatus: run.status,
          latestRunErrorCode: run.errorCode ?? null,
        },
      });
      return;
    }

    const promotedRun = promotionResult?.run ?? null;
    if (!promotedRun) return;

    if (promotionResult?.kind === "promoted" && promotionResult.reopenedActivity) {
      await logActivity(db, promotionResult.reopenedActivity);
    }

    publishLiveEvent({
      companyId: promotedRun.companyId,
      type: "heartbeat.run.queued",
      payload: {
        runId: promotedRun.id,
        agentId: promotedRun.agentId,
        invocationSource: promotedRun.invocationSource,
        triggerDetail: promotedRun.triggerDetail,
        wakeupRequestId: promotedRun.wakeupRequestId,
      },
    });

    await startNextQueuedRunForAgent(promotedRun.agentId);
  }

  async function enqueueWakeup(agentId: string, opts: WakeupOptions = {}) {
    const source = opts.source ?? "on_demand";
    const triggerDetail = opts.triggerDetail ?? null;
    const contextSnapshot: Record<string, unknown> = { ...(opts.contextSnapshot ?? {}) };
    const reason = opts.reason ?? null;
    const payload = opts.payload ?? null;
    const {
      contextSnapshot: enrichedContextSnapshot,
      issueIdFromPayload,
      taskKey,
      wakeCommentId,
    } = enrichWakeContextSnapshot({
      contextSnapshot,
      reason,
      source,
      triggerDetail,
      payload,
    });
    let issueId = readNonEmptyString(enrichedContextSnapshot.issueId) ?? issueIdFromPayload;

    const agent = await getAgent(agentId);
    if (!agent) throw notFound("Agent not found");
    const explicitResumeSession = await resolveExplicitResumeSessionOverride(agent, payload, taskKey);
    if (explicitResumeSession) {
      enrichedContextSnapshot.resumeFromRunId = explicitResumeSession.resumeFromRunId;
      enrichedContextSnapshot.resumeSessionDisplayId = explicitResumeSession.sessionDisplayId;
      enrichedContextSnapshot.resumeSessionParams = explicitResumeSession.sessionParams;
      if (!readNonEmptyString(enrichedContextSnapshot.issueId) && explicitResumeSession.issueId) {
        enrichedContextSnapshot.issueId = explicitResumeSession.issueId;
      }
      if (!readNonEmptyString(enrichedContextSnapshot.taskId) && explicitResumeSession.taskId) {
        enrichedContextSnapshot.taskId = explicitResumeSession.taskId;
      }
      if (!readNonEmptyString(enrichedContextSnapshot.taskKey) && explicitResumeSession.taskKey) {
        enrichedContextSnapshot.taskKey = explicitResumeSession.taskKey;
      }
      issueId = readNonEmptyString(enrichedContextSnapshot.issueId) ?? issueId;
    }
    const effectiveTaskKey = readNonEmptyString(enrichedContextSnapshot.taskKey) ?? taskKey;
    const sessionBefore =
      explicitResumeSession?.sessionDisplayId ??
      await resolveSessionBeforeForWakeup(agent, effectiveTaskKey);
    const continuationAttempt = readContinuationAttempt(enrichedContextSnapshot.livenessContinuationAttempt);

    const writeSkippedRequest = async (skipReason: string) => {
      await db.insert(agentWakeupRequests).values({
        companyId: agent.companyId,
        agentId,
        source,
        triggerDetail,
        reason: skipReason,
        payload,
        status: "skipped",
        requestedByActorType: opts.requestedByActorType ?? null,
        requestedByActorId: opts.requestedByActorId ?? null,
        idempotencyKey: opts.idempotencyKey ?? null,
        finishedAt: new Date(),
      });
    };

    let projectId = readNonEmptyString(enrichedContextSnapshot.projectId);
    if (!projectId && issueId) {
      projectId = await db
        .select({ projectId: issues.projectId })
        .from(issues)
        .where(and(eq(issues.id, issueId), eq(issues.companyId, agent.companyId)))
        .then((rows) => rows[0]?.projectId ?? null);
    }

    const budgetBlock = await budgets.getInvocationBlock(agent.companyId, agentId, {
      issueId,
      projectId,
    });
    if (budgetBlock) {
      await writeSkippedRequest("budget.blocked");
      throw conflict(budgetBlock.reason, {
        scopeType: budgetBlock.scopeType,
        scopeId: budgetBlock.scopeId,
      });
    }

    if (
      agent.status === "paused" ||
      agent.status === "terminated" ||
      agent.status === "pending_approval"
    ) {
      throw conflict("Agent is not invokable in its current state", { status: agent.status });
    }

    const policy = parseHeartbeatPolicy(agent);

    if (source === "timer" && !policy.enabled) {
      await writeSkippedRequest("heartbeat.disabled");
      return null;
    }
    if (source !== "timer" && !policy.wakeOnDemand) {
      await writeSkippedRequest("heartbeat.wakeOnDemand.disabled");
      return null;
    }

    if (issueId) {
      const activePauseHold = await treeControlSvc.getActivePauseHoldGate(agent.companyId, issueId);
      if (activePauseHold) {
        const treeHoldInteractionWake = allowsIssueInteractionWake(enrichedContextSnapshot);

        if (!treeHoldInteractionWake) {
          await writeSkippedRequest("issue_tree_hold_active");
          await logActivity(db, {
            companyId: agent.companyId,
            actorType: "system",
            actorId: "system",
            agentId,
            runId: null,
            action: "issue.tree_hold_wakeup_deferred",
            entityType: "issue",
            entityId: issueId,
            details: {
              holdId: activePauseHold.holdId,
              rootIssueId: activePauseHold.rootIssueId,
              requestedReason: reason,
              source,
              triggerDetail,
              securityPrinciples: ["Complete Mediation", "Fail Securely", "Secure Defaults"],
            },
          });
          return null;
        }

        enrichedContextSnapshot.treeHoldInteraction = true;
        enrichedContextSnapshot.activeTreeHold = {
          holdId: activePauseHold.holdId,
          rootIssueId: activePauseHold.rootIssueId,
          mode: activePauseHold.mode,
          reason: activePauseHold.reason,
          releasePolicy: activePauseHold.releasePolicy,
          interaction: true,
        };
      }
    }

    if (issueId) {
      // Mention-triggered wakes can request input from another agent, but they must
      // still respect the issue execution lock so a second agent cannot start on the
      // same issue workspace while the assignee already has a live run.
      const agentNameKey = normalizeAgentNameKey(agent.name);

      const outcome = await db.transaction(async (tx) => {
        await tx.execute(
          sql`select id from issues where id = ${issueId} and company_id = ${agent.companyId} for update`,
        );

        const issue = await tx
          .select({
            id: issues.id,
            companyId: issues.companyId,
            executionRunId: issues.executionRunId,
            executionAgentNameKey: issues.executionAgentNameKey,
          })
          .from(issues)
          .where(and(eq(issues.id, issueId), eq(issues.companyId, agent.companyId)))
          .then((rows) => rows[0] ?? null);

        if (!issue) {
          await tx.insert(agentWakeupRequests).values({
            companyId: agent.companyId,
            agentId,
            source,
            triggerDetail,
            reason: "issue_execution_issue_not_found",
            payload,
            status: "skipped",
            requestedByActorType: opts.requestedByActorType ?? null,
            requestedByActorId: opts.requestedByActorId ?? null,
            idempotencyKey: opts.idempotencyKey ?? null,
            finishedAt: new Date(),
          });
          return { kind: "skipped" as const };
        }

        let activeExecutionRun = issue.executionRunId
          ? await tx
            .select()
            .from(heartbeatRuns)
            .where(eq(heartbeatRuns.id, issue.executionRunId))
            .then((rows) => rows[0] ?? null)
          : null;

        if (
          activeExecutionRun &&
          !EXECUTION_PATH_HEARTBEAT_RUN_STATUSES.includes(
            activeExecutionRun.status as (typeof EXECUTION_PATH_HEARTBEAT_RUN_STATUSES)[number],
          )
        ) {
          activeExecutionRun = null;
        }

        if (!activeExecutionRun && issue.executionRunId) {
          await tx
            .update(issues)
            .set({
              executionRunId: null,
              executionAgentNameKey: null,
              executionLockedAt: null,
              updatedAt: new Date(),
            })
            .where(eq(issues.id, issue.id));
        }

        if (!activeExecutionRun) {
          const legacyRun = await tx
            .select()
            .from(heartbeatRuns)
            .where(
              and(
                eq(heartbeatRuns.companyId, issue.companyId),
                inArray(heartbeatRuns.status, [...EXECUTION_PATH_HEARTBEAT_RUN_STATUSES]),
                sql`${heartbeatRuns.contextSnapshot} ->> 'issueId' = ${issue.id}`,
              ),
            )
            .orderBy(
              sql`case when ${heartbeatRuns.status} = 'running' then 0 else 1 end`,
              asc(heartbeatRuns.createdAt),
            )
            .limit(1)
            .then((rows) => rows[0] ?? null);

          if (legacyRun) {
            activeExecutionRun = legacyRun;
            const legacyAgent = await tx
              .select({ name: agents.name })
              .from(agents)
              .where(eq(agents.id, legacyRun.agentId))
              .then((rows) => rows[0] ?? null);
            await tx
              .update(issues)
              .set({
                executionRunId: legacyRun.id,
                executionAgentNameKey: normalizeAgentNameKey(legacyAgent?.name),
                executionLockedAt: new Date(),
                updatedAt: new Date(),
              })
              .where(eq(issues.id, issue.id));
          }
        }

        const dependencyReadiness = await issuesSvc.listDependencyReadiness(
          issue.companyId,
          [issue.id],
          tx,
        ).then((rows) => rows.get(issue.id) ?? null);

        // Blocked descendants should stay idle until the final blocker resolves.
        // Human comment/mention wakes are the exception: they may run in a
        // bounded interaction mode so the assignee can answer or triage.
        const blockedInteractionWake =
          dependencyReadiness &&
          !dependencyReadiness.isDependencyReady &&
          allowsIssueInteractionWake(enrichedContextSnapshot);

        if (blockedInteractionWake) {
          enrichedContextSnapshot.dependencyBlockedInteraction = true;
          enrichedContextSnapshot.unresolvedBlockerIssueIds = dependencyReadiness.unresolvedBlockerIssueIds;
          enrichedContextSnapshot.unresolvedBlockerCount = dependencyReadiness.unresolvedBlockerCount;
          enrichedContextSnapshot.unresolvedBlockerSummaries = await listUnresolvedBlockerSummaries(
            tx,
            issue.companyId,
            issue.id,
            dependencyReadiness.unresolvedBlockerIssueIds,
          );
        }

        if (!activeExecutionRun && dependencyReadiness && !dependencyReadiness.isDependencyReady && !blockedInteractionWake) {
          await tx.insert(agentWakeupRequests).values({
            companyId: agent.companyId,
            agentId,
            source,
            triggerDetail,
            reason: "issue_dependencies_blocked",
            payload: {
              ...(payload ?? {}),
              issueId,
              unresolvedBlockerIssueIds: dependencyReadiness.unresolvedBlockerIssueIds,
            },
            status: "skipped",
            requestedByActorType: opts.requestedByActorType ?? null,
            requestedByActorId: opts.requestedByActorId ?? null,
            idempotencyKey: opts.idempotencyKey ?? null,
            finishedAt: new Date(),
          });
          return { kind: "skipped" as const };
        }

        if (activeExecutionRun) {
          const executionAgent = await tx
            .select({ name: agents.name })
            .from(agents)
            .where(eq(agents.id, activeExecutionRun.agentId))
            .then((rows) => rows[0] ?? null);
          const executionAgentNameKey =
            normalizeAgentNameKey(issue.executionAgentNameKey) ??
            normalizeAgentNameKey(executionAgent?.name);
          const isSameExecutionAgent =
            Boolean(executionAgentNameKey) && executionAgentNameKey === agentNameKey;
          const shouldQueueFollowupForRunningWake =
            shouldQueueFollowupForRunningIssueWake({ contextSnapshot: enrichedContextSnapshot, wakeCommentId }) &&
            activeExecutionRun.status === "running" &&
            isSameExecutionAgent;

          if (isSameExecutionAgent && !shouldQueueFollowupForRunningWake) {
            const mergedContextSnapshot = mergeCoalescedContextSnapshot(
              activeExecutionRun.contextSnapshot,
              enrichedContextSnapshot,
            );
            const mergedRun = await tx
              .update(heartbeatRuns)
              .set({
                contextSnapshot: mergedContextSnapshot,
                updatedAt: new Date(),
              })
              .where(eq(heartbeatRuns.id, activeExecutionRun.id))
              .returning()
              .then((rows) => rows[0] ?? activeExecutionRun);

            await tx.insert(agentWakeupRequests).values({
              companyId: agent.companyId,
              agentId,
              source,
              triggerDetail,
              reason: "issue_execution_same_name",
              payload,
              status: "coalesced",
              coalescedCount: 1,
              requestedByActorType: opts.requestedByActorType ?? null,
              requestedByActorId: opts.requestedByActorId ?? null,
              idempotencyKey: opts.idempotencyKey ?? null,
              runId: mergedRun.id,
              finishedAt: new Date(),
            });

            return { kind: "coalesced" as const, run: mergedRun };
          }

          const deferredPayload = {
            ...(payload ?? {}),
            issueId,
            [DEFERRED_WAKE_CONTEXT_KEY]: enrichedContextSnapshot,
          };

          const existingDeferred = await tx
            .select()
            .from(agentWakeupRequests)
            .where(
              and(
                eq(agentWakeupRequests.companyId, agent.companyId),
                eq(agentWakeupRequests.agentId, agentId),
                eq(agentWakeupRequests.status, "deferred_issue_execution"),
                sql`${agentWakeupRequests.payload} ->> 'issueId' = ${issue.id}`,
              ),
            )
            .orderBy(asc(agentWakeupRequests.requestedAt))
            .limit(1)
            .then((rows) => rows[0] ?? null);

          if (existingDeferred) {
            const existingDeferredPayload = parseObject(existingDeferred.payload);
            const existingDeferredContext = parseObject(existingDeferredPayload[DEFERRED_WAKE_CONTEXT_KEY]);
            const mergedDeferredContext = mergeCoalescedContextSnapshot(
              existingDeferredContext,
              enrichedContextSnapshot,
            );
            const mergedDeferredPayload = {
              ...existingDeferredPayload,
              ...(payload ?? {}),
              issueId,
              [DEFERRED_WAKE_CONTEXT_KEY]: mergedDeferredContext,
            };

            await tx
              .update(agentWakeupRequests)
              .set({
                payload: mergedDeferredPayload,
                coalescedCount: (existingDeferred.coalescedCount ?? 0) + 1,
                updatedAt: new Date(),
              })
              .where(eq(agentWakeupRequests.id, existingDeferred.id));

            return { kind: "deferred" as const };
          }

          await tx.insert(agentWakeupRequests).values({
            companyId: agent.companyId,
            agentId,
            source,
            triggerDetail,
            reason: "issue_execution_deferred",
            payload: deferredPayload,
            status: "deferred_issue_execution",
            requestedByActorType: opts.requestedByActorType ?? null,
            requestedByActorId: opts.requestedByActorId ?? null,
            idempotencyKey: opts.idempotencyKey ?? null,
          });

          return { kind: "deferred" as const };
        }

        const wakeupRequest = await tx
          .insert(agentWakeupRequests)
          .values({
            companyId: agent.companyId,
            agentId,
            source,
            triggerDetail,
            reason,
            payload,
            status: "queued",
            requestedByActorType: opts.requestedByActorType ?? null,
            requestedByActorId: opts.requestedByActorId ?? null,
            idempotencyKey: opts.idempotencyKey ?? null,
          })
          .returning()
          .then((rows) => rows[0]);

        const newRun = await tx
          .insert(heartbeatRuns)
          .values({
            companyId: agent.companyId,
            agentId,
            invocationSource: source,
            triggerDetail,
            status: "queued",
            wakeupRequestId: wakeupRequest.id,
            contextSnapshot: enrichedContextSnapshot,
            sessionIdBefore: sessionBefore,
            continuationAttempt,
          })
          .returning()
          .then((rows) => rows[0]);

        await tx
          .update(agentWakeupRequests)
          .set({
            runId: newRun.id,
            updatedAt: new Date(),
          })
          .where(eq(agentWakeupRequests.id, wakeupRequest.id));

        // executionRunId is NOT stamped here (enqueueWakeup queues the run but
        // doesn't start it). It will be stamped in claimQueuedRun() once the run
        // transitions to "running" — Fix A (lazy locking).

        return { kind: "queued" as const, run: newRun };
      });

      if (outcome.kind === "deferred" || outcome.kind === "skipped") return null;
      if (outcome.kind === "coalesced") {
        await startNextQueuedRunForAgent(agent.id);
        return outcome.run;
      }

      const newRun = outcome.run;
      publishLiveEvent({
        companyId: newRun.companyId,
        type: "heartbeat.run.queued",
        payload: {
          runId: newRun.id,
          agentId: newRun.agentId,
          invocationSource: newRun.invocationSource,
          triggerDetail: newRun.triggerDetail,
          wakeupRequestId: newRun.wakeupRequestId,
        },
      });

      await startNextQueuedRunForAgent(agent.id);
      return newRun;
    }

    const activeRuns = await db
      .select()
      .from(heartbeatRuns)
      .where(and(eq(heartbeatRuns.agentId, agentId), inArray(heartbeatRuns.status, [...EXECUTION_PATH_HEARTBEAT_RUN_STATUSES])))
      .orderBy(desc(heartbeatRuns.createdAt));

    const sameScopeQueuedRun = activeRuns.find(
      (candidate) => candidate.status === "queued" && isSameTaskScope(runTaskKey(candidate), taskKey),
    );
    const sameScopeScheduledRetryRun = activeRuns.find(
      (candidate) => candidate.status === "scheduled_retry" && isSameTaskScope(runTaskKey(candidate), taskKey),
    );
    const sameScopeRunningRun = activeRuns.find(
      (candidate) => candidate.status === "running" && isSameTaskScope(runTaskKey(candidate), taskKey),
    );
    const shouldQueueFollowupForRunningWake =
      Boolean(sameScopeRunningRun) &&
      !sameScopeQueuedRun &&
      shouldQueueFollowupForRunningIssueWake({ contextSnapshot: enrichedContextSnapshot, wakeCommentId });

    const coalescedTargetRun =
      sameScopeQueuedRun ??
      sameScopeScheduledRetryRun ??
      (shouldQueueFollowupForRunningWake ? null : sameScopeRunningRun ?? null);

    if (coalescedTargetRun) {
      const mergedContextSnapshot = mergeCoalescedContextSnapshot(
        coalescedTargetRun.contextSnapshot,
        contextSnapshot,
      );
      const mergedRun = await db
        .update(heartbeatRuns)
        .set({
          contextSnapshot: mergedContextSnapshot,
          updatedAt: new Date(),
        })
        .where(eq(heartbeatRuns.id, coalescedTargetRun.id))
        .returning()
        .then((rows) => rows[0] ?? coalescedTargetRun);

      await db.insert(agentWakeupRequests).values({
        companyId: agent.companyId,
        agentId,
        source,
        triggerDetail,
        reason,
        payload,
        status: "coalesced",
        coalescedCount: 1,
        requestedByActorType: opts.requestedByActorType ?? null,
        requestedByActorId: opts.requestedByActorId ?? null,
        idempotencyKey: opts.idempotencyKey ?? null,
        runId: mergedRun.id,
        finishedAt: new Date(),
      });
      return mergedRun;
    }

    const wakeupRequest = await db
      .insert(agentWakeupRequests)
      .values({
        companyId: agent.companyId,
        agentId,
        source,
        triggerDetail,
        reason,
        payload,
        status: "queued",
        requestedByActorType: opts.requestedByActorType ?? null,
        requestedByActorId: opts.requestedByActorId ?? null,
        idempotencyKey: opts.idempotencyKey ?? null,
      })
      .returning()
      .then((rows) => rows[0]);

    const newRun = await db
      .insert(heartbeatRuns)
      .values({
        companyId: agent.companyId,
        agentId,
        invocationSource: source,
        triggerDetail,
        status: "queued",
        wakeupRequestId: wakeupRequest.id,
        contextSnapshot: enrichedContextSnapshot,
        sessionIdBefore: sessionBefore,
        continuationAttempt,
      })
      .returning()
      .then((rows) => rows[0]);

    await db
      .update(agentWakeupRequests)
      .set({
        runId: newRun.id,
        updatedAt: new Date(),
      })
      .where(eq(agentWakeupRequests.id, wakeupRequest.id));

    publishLiveEvent({
      companyId: newRun.companyId,
      type: "heartbeat.run.queued",
      payload: {
        runId: newRun.id,
        agentId: newRun.agentId,
        invocationSource: newRun.invocationSource,
        triggerDetail: newRun.triggerDetail,
        wakeupRequestId: newRun.wakeupRequestId,
      },
    });

    await startNextQueuedRunForAgent(agent.id);

    return newRun;
  }

  async function listProjectScopedRunIds(companyId: string, projectId: string) {
    const runIssueId = sql<string | null>`${heartbeatRuns.contextSnapshot} ->> 'issueId'`;
    const effectiveProjectId = sql<string | null>`coalesce(${heartbeatRuns.contextSnapshot} ->> 'projectId', ${issues.projectId}::text)`;

    const rows = await db
      .selectDistinctOn([heartbeatRuns.id], { id: heartbeatRuns.id })
      .from(heartbeatRuns)
      .leftJoin(
        issues,
        and(
          eq(issues.companyId, companyId),
          sql`${issues.id}::text = ${runIssueId}`,
        ),
      )
      .where(
        and(
          eq(heartbeatRuns.companyId, companyId),
          inArray(heartbeatRuns.status, [...CANCELLABLE_HEARTBEAT_RUN_STATUSES]),
          sql`${effectiveProjectId} = ${projectId}`,
        ),
      );

    return rows.map((row) => row.id);
  }

  async function listProjectScopedWakeupIds(companyId: string, projectId: string) {
    const wakeIssueId = sql<string | null>`${agentWakeupRequests.payload} ->> 'issueId'`;
    const effectiveProjectId = sql<string | null>`coalesce(${agentWakeupRequests.payload} ->> 'projectId', ${issues.projectId}::text)`;

    const rows = await db
      .selectDistinctOn([agentWakeupRequests.id], { id: agentWakeupRequests.id })
      .from(agentWakeupRequests)
      .leftJoin(
        issues,
        and(
          eq(issues.companyId, companyId),
          sql`${issues.id}::text = ${wakeIssueId}`,
        ),
      )
      .where(
        and(
          eq(agentWakeupRequests.companyId, companyId),
          inArray(agentWakeupRequests.status, ["queued", "deferred_issue_execution"]),
          sql`${agentWakeupRequests.runId} is null`,
          sql`${effectiveProjectId} = ${projectId}`,
        ),
      );

    return rows.map((row) => row.id);
  }

  async function cancelPendingWakeupsForBudgetScope(scope: BudgetEnforcementScope) {
    const now = new Date();
    let wakeupIds: string[] = [];

    if (scope.scopeType === "company") {
      wakeupIds = await db
        .select({ id: agentWakeupRequests.id })
        .from(agentWakeupRequests)
        .where(
          and(
            eq(agentWakeupRequests.companyId, scope.companyId),
            inArray(agentWakeupRequests.status, ["queued", "deferred_issue_execution"]),
            sql`${agentWakeupRequests.runId} is null`,
          ),
        )
        .then((rows) => rows.map((row) => row.id));
    } else if (scope.scopeType === "agent") {
      wakeupIds = await db
        .select({ id: agentWakeupRequests.id })
        .from(agentWakeupRequests)
        .where(
          and(
            eq(agentWakeupRequests.companyId, scope.companyId),
            eq(agentWakeupRequests.agentId, scope.scopeId),
            inArray(agentWakeupRequests.status, ["queued", "deferred_issue_execution"]),
            sql`${agentWakeupRequests.runId} is null`,
          ),
        )
        .then((rows) => rows.map((row) => row.id));
    } else {
      wakeupIds = await listProjectScopedWakeupIds(scope.companyId, scope.scopeId);
    }

    if (wakeupIds.length === 0) return 0;

    await db
      .update(agentWakeupRequests)
      .set({
        status: "cancelled",
        finishedAt: now,
        error: "Cancelled due to budget pause",
        updatedAt: now,
      })
      .where(inArray(agentWakeupRequests.id, wakeupIds));

    return wakeupIds.length;
  }

  async function cancelRunInternal(runId: string, reason = "Cancelled by control plane") {
    const run = await getRun(runId);
    if (!run) throw notFound("Heartbeat run not found");
    if (!CANCELLABLE_HEARTBEAT_RUN_STATUSES.includes(run.status as (typeof CANCELLABLE_HEARTBEAT_RUN_STATUSES)[number])) return run;
    const agent = await getAgent(run.agentId);

    const running = runningProcesses.get(run.id);
    if (running) {
      await terminateHeartbeatRunProcess({
        pid: running.child.pid ?? run.processPid,
        processGroupId: running.processGroupId ?? run.processGroupId,
        graceMs: Math.max(1, running.graceSec) * 1000,
      });
    } else if (run.processPid || run.processGroupId) {
      await terminateHeartbeatRunProcess({
        pid: run.processPid,
        processGroupId: run.processGroupId,
      });
    }

    const cancelled = await setRunStatus(run.id, "cancelled", {
      finishedAt: new Date(),
      error: reason,
      errorCode: "cancelled",
      ...(agent ? {
        resultJson: mergeRunStopMetadataForAgent(agent, "cancelled", {
          resultJson: parseObject(run.resultJson),
          errorCode: "cancelled",
          errorMessage: reason,
        }),
      } : {}),
    });

    await setWakeupStatus(run.wakeupRequestId, "cancelled", {
      finishedAt: new Date(),
      error: reason,
    });

    if (cancelled) {
      await appendRunEvent(cancelled, 1, {
        eventType: "lifecycle",
        stream: "system",
        level: "warn",
        message: "run cancelled",
      });
      await releaseIssueExecutionAndPromote(cancelled);
    }

    runningProcesses.delete(run.id);
    await finalizeAgentStatus(run.agentId, "cancelled");
    await startNextQueuedRunForAgent(run.agentId);
    return cancelled;
  }

  async function cancelActiveForAgentInternal(agentId: string, reason = "Cancelled due to agent pause") {
    const agent = await getAgent(agentId);
    const runs = await db
      .select()
      .from(heartbeatRuns)
      .where(and(eq(heartbeatRuns.agentId, agentId), inArray(heartbeatRuns.status, [...CANCELLABLE_HEARTBEAT_RUN_STATUSES])));

    for (const run of runs) {
      await setRunStatus(run.id, "cancelled", {
        finishedAt: new Date(),
        error: reason,
        errorCode: "cancelled",
        ...(agent ? {
          resultJson: mergeRunStopMetadataForAgent(agent, "cancelled", {
            resultJson: parseObject(run.resultJson),
            errorCode: "cancelled",
            errorMessage: reason,
          }),
        } : {}),
      });

      await setWakeupStatus(run.wakeupRequestId, "cancelled", {
        finishedAt: new Date(),
        error: reason,
      });

      const running = runningProcesses.get(run.id);
      if (running) {
        await terminateHeartbeatRunProcess({
          pid: running.child.pid ?? run.processPid,
          processGroupId: running.processGroupId ?? run.processGroupId,
          graceMs: Math.max(1, running.graceSec) * 1000,
        });
        runningProcesses.delete(run.id);
      } else if (run.processPid || run.processGroupId) {
        await terminateHeartbeatRunProcess({
          pid: run.processPid,
          processGroupId: run.processGroupId,
        });
      }
      await releaseIssueExecutionAndPromote(run);
    }

    return runs.length;
  }

  async function cancelBudgetScopeWork(scope: BudgetEnforcementScope) {
    if (scope.scopeType === "agent") {
      await cancelActiveForAgentInternal(scope.scopeId, "Cancelled due to budget pause");
      await cancelPendingWakeupsForBudgetScope(scope);
      return;
    }

    const runIds =
      scope.scopeType === "company"
        ? await db
          .select({ id: heartbeatRuns.id })
          .from(heartbeatRuns)
          .where(
            and(
              eq(heartbeatRuns.companyId, scope.companyId),
              inArray(heartbeatRuns.status, [...CANCELLABLE_HEARTBEAT_RUN_STATUSES]),
            ),
          )
          .then((rows) => rows.map((row) => row.id))
        : await listProjectScopedRunIds(scope.companyId, scope.scopeId);

    for (const runId of runIds) {
      await cancelRunInternal(runId, "Cancelled due to budget pause");
    }

    await cancelPendingWakeupsForBudgetScope(scope);
  }

  return {
    list: async (companyId: string, agentId?: string, limit?: number) => {
      const safeForLegacyEncoding = await hasUnsafeTextProjectionDatabase();
      const query = db
        .select(
          safeForLegacyEncoding
            ? {
                ...heartbeatRunListColumns,
                error: sql<string | null>`NULL`.as("error"),
                ...heartbeatRunListContextColumns,
              }
            : {
                ...heartbeatRunListColumns,
                ...heartbeatRunListContextColumns,
                ...heartbeatRunListResultColumns,
              },
        )
        .from(heartbeatRuns)
        .where(
          agentId
            ? and(eq(heartbeatRuns.companyId, companyId), eq(heartbeatRuns.agentId, agentId))
            : eq(heartbeatRuns.companyId, companyId),
        )
        .orderBy(desc(heartbeatRuns.createdAt));

      const rows = limit ? await query.limit(limit) : await query;
      return rows.map((row) => {
        const {
          contextIssueId,
          contextTaskId,
          contextTaskKey,
          contextCommentId,
          contextWakeCommentId,
          contextWakeReason,
          contextWakeSource,
          contextWakeTriggerDetail,
          resultSummary,
          resultResult,
          resultMessage,
          resultError,
          resultTotalCostUsd,
          resultCostUsd,
          resultCostUsdCamel,
          ...rest
        } = row as typeof row & {
          resultSummary?: string | null;
          resultResult?: string | null;
          resultMessage?: string | null;
          resultError?: string | null;
          resultTotalCostUsd?: string | null;
          resultCostUsd?: string | null;
          resultCostUsdCamel?: string | null;
        };

        return {
          ...rest,
          contextSnapshot: summarizeHeartbeatRunContextSnapshot({
            issueId: contextIssueId,
            taskId: contextTaskId,
            taskKey: contextTaskKey,
            commentId: contextCommentId,
            wakeCommentId: contextWakeCommentId,
            wakeReason: contextWakeReason,
            wakeSource: contextWakeSource,
            wakeTriggerDetail: contextWakeTriggerDetail,
          }),
          resultJson: safeForLegacyEncoding
            ? null
            : summarizeHeartbeatRunListResultJson({
                summary: resultSummary,
                result: resultResult,
                message: resultMessage,
                error: resultError,
                totalCostUsd: resultTotalCostUsd,
                costUsd: resultCostUsd,
                costUsdCamel: resultCostUsdCamel,
              }),
        };
      });
    },

    getRun,

    getRunLogAccess,

    getRuntimeState: async (agentId: string) => {
      const state = await getRuntimeState(agentId);
      const agent = await getAgent(agentId);
      if (!agent) return null;
      const ensured = state ?? (await ensureRuntimeState(agent));
      const latestTaskSession = await db
        .select()
        .from(agentTaskSessions)
        .where(and(eq(agentTaskSessions.companyId, agent.companyId), eq(agentTaskSessions.agentId, agent.id)))
        .orderBy(desc(agentTaskSessions.updatedAt))
        .limit(1)
        .then((rows) => rows[0] ?? null);
      return {
        ...ensured,
        sessionDisplayId: latestTaskSession?.sessionDisplayId ?? ensured.sessionId,
        sessionParamsJson: latestTaskSession?.sessionParamsJson ?? null,
      };
    },

    listTaskSessions: async (agentId: string) => {
      const agent = await getAgent(agentId);
      if (!agent) throw notFound("Agent not found");

      return db
        .select()
        .from(agentTaskSessions)
        .where(and(eq(agentTaskSessions.companyId, agent.companyId), eq(agentTaskSessions.agentId, agentId)))
        .orderBy(desc(agentTaskSessions.updatedAt), desc(agentTaskSessions.createdAt));
    },

    resetRuntimeSession: async (agentId: string, opts?: { taskKey?: string | null }) => {
      const agent = await getAgent(agentId);
      if (!agent) throw notFound("Agent not found");
      await ensureRuntimeState(agent);
      const taskKey = readNonEmptyString(opts?.taskKey);
      const clearedTaskSessions = await clearTaskSessions(
        agent.companyId,
        agent.id,
        taskKey ? { taskKey, adapterType: agent.adapterType } : undefined,
      );
      const runtimePatch: Partial<typeof agentRuntimeState.$inferInsert> = {
        sessionId: null,
        lastError: null,
        updatedAt: new Date(),
      };
      if (!taskKey) {
        runtimePatch.stateJson = {};
      }

      const updated = await db
        .update(agentRuntimeState)
        .set(runtimePatch)
        .where(eq(agentRuntimeState.agentId, agentId))
        .returning()
        .then((rows) => rows[0] ?? null);

      if (!updated) return null;
      return {
        ...updated,
        sessionDisplayId: null,
        sessionParamsJson: null,
        clearedTaskSessions,
      };
    },

    listEvents: (runId: string, afterSeq = 0, limit = 200) =>
      db
        .select()
        .from(heartbeatRunEvents)
        .where(and(eq(heartbeatRunEvents.runId, runId), gt(heartbeatRunEvents.seq, afterSeq)))
        .orderBy(asc(heartbeatRunEvents.seq))
        .limit(Math.max(1, Math.min(limit, 1000))),

    getRetryExhaustedReason: async (runId: string) => {
      const row = await db
        .select({
          message: heartbeatRunEvents.message,
        })
        .from(heartbeatRunEvents)
        .where(
          and(
            eq(heartbeatRunEvents.runId, runId),
            eq(heartbeatRunEvents.eventType, "lifecycle"),
            sql`${heartbeatRunEvents.message} like 'Bounded retry exhausted%'`,
          ),
        )
        .orderBy(desc(heartbeatRunEvents.id))
        .limit(1)
        .then((rows) => rows[0] ?? null);
      return row?.message ?? null;
    },

    readLog: async (
      runOrLookup: string | {
        id: string;
        companyId: string;
        logStore: string | null;
        logRef: string | null;
      },
      opts?: { offset?: number; limitBytes?: number },
    ) => {
      const run = typeof runOrLookup === "string" ? await getRunLogAccess(runOrLookup) : runOrLookup;
      const runId = typeof runOrLookup === "string" ? runOrLookup : runOrLookup.id;
      if (!run) throw notFound("Heartbeat run not found");
      if (!run.logStore || !run.logRef) throw notFound("Run log not found");

      const result = await runLogStore.read(
        {
          store: run.logStore as "local_file",
          logRef: run.logRef,
        },
        opts,
      );

      return {
        runId,
        store: run.logStore,
        logRef: run.logRef,
        ...result,
        // Run-log chunks are already redacted before they are appended to the store.
        // Rewriting the full chunk again on every poll creates avoidable string copies.
        content: result.content,
      };
    },

    invoke: async (
      agentId: string,
      source: "timer" | "assignment" | "on_demand" | "automation" = "on_demand",
      contextSnapshot: Record<string, unknown> = {},
      triggerDetail: "manual" | "ping" | "callback" | "system" = "manual",
      actor?: { actorType?: "user" | "agent" | "system"; actorId?: string | null },
    ) =>
      enqueueWakeup(agentId, {
        source,
        triggerDetail,
        contextSnapshot,
        requestedByActorType: actor?.actorType,
        requestedByActorId: actor?.actorId ?? null,
      }),

    wakeup: enqueueWakeup,

    reportRunActivity: clearDetachedRunWarning,

    reapOrphanedRuns,

    promoteDueScheduledRetries,

    resumeQueuedRuns,

    scheduleBoundedRetry: async (
      runId: string,
      opts?: {
        now?: Date;
        random?: () => number;
        retryReason?: string;
        wakeReason?: string;
      },
    ) => {
      const run = await getRun(runId, { unsafeFullResultJson: true });
      if (!run) return { outcome: "missing_run" as const };
      const agent = await getAgent(run.agentId);
      if (!agent) return { outcome: "missing_agent" as const };
      return scheduleBoundedRetryForRun(run, agent, opts);
    },

    reconcileStrandedAssignedIssues,

    reconcileIssueGraphLiveness,

    tickTimers: async (now = new Date()) => {
      const allAgents = await db.select().from(agents);
      let checked = 0;
      let enqueued = 0;
      let skipped = 0;

      for (const agent of allAgents) {
        if (agent.status === "paused" || agent.status === "terminated" || agent.status === "pending_approval") continue;
        const policy = parseHeartbeatPolicy(agent);
        if (!policy.enabled || policy.intervalSec <= 0) continue;

        checked += 1;
        const baseline = new Date(agent.lastHeartbeatAt ?? agent.createdAt).getTime();
        const elapsedMs = now.getTime() - baseline;
        if (elapsedMs < policy.intervalSec * 1000) continue;

        const run = await enqueueWakeup(agent.id, {
          source: "timer",
          triggerDetail: "system",
          reason: "heartbeat_timer",
          requestedByActorType: "system",
          requestedByActorId: "heartbeat_scheduler",
          contextSnapshot: {
            source: "scheduler",
            reason: "interval_elapsed",
            now: now.toISOString(),
          },
        });
        if (run) enqueued += 1;
        else skipped += 1;
      }

      return { checked, enqueued, skipped };
    },

    cancelRun: (runId: string) => cancelRunInternal(runId),

    cancelActiveForAgent: (agentId: string) => cancelActiveForAgentInternal(agentId),

    cancelBudgetScopeWork,

    getRunIssueSummary: async (runId: string) => {
      const [run] = await db
        .select(heartbeatRunIssueSummaryColumns)
        .from(heartbeatRuns)
        .where(eq(heartbeatRuns.id, runId))
        .limit(1);
      return run ?? null;
    },

    getActiveRunForAgent: async (agentId: string) => {
      const [run] = await db
        .select()
        .from(heartbeatRuns)
        .where(
          and(
            eq(heartbeatRuns.agentId, agentId),
            eq(heartbeatRuns.status, "running"),
          ),
        )
        .orderBy(desc(heartbeatRuns.startedAt))
        .limit(1);
      return run ?? null;
    },

    getActiveRunIssueSummaryForAgent: async (agentId: string) => {
      const [run] = await db
        .select(heartbeatRunIssueSummaryColumns)
        .from(heartbeatRuns)
        .where(
          and(
            eq(heartbeatRuns.agentId, agentId),
            eq(heartbeatRuns.status, "running"),
          ),
        )
        .orderBy(desc(heartbeatRuns.startedAt))
        .limit(1);
      return run ?? null;
    },
  };
}