Add ACPX local adapter runtime (#4893)

## Thinking Path

> - Paperclip orchestrates AI-agent companies through a control plane
that can start, supervise, and recover agent runs.
> - Local adapters are the bridge between Paperclip issues and concrete
agent runtimes such as Claude, Codex, and other ACP-compatible tools.
> - The roadmap calls out broader “bring your own agent” and claw-style
agent support, and ACPX gives Paperclip one path to normalize multiple
ACP agents behind a single adapter.
> - The branch needed to become one reviewable PR against current
`paperclipai/paperclip:master`, without carrying stale base conflicts or
generated lockfile churn.
> - This pull request adds an experimental built-in `acpx_local`
adapter, integrates it through the server/CLI/UI adapter surfaces, and
adds regression coverage for runtime execution, skill sync, stream
parsing, diagnostics, and log redaction.
> - The benefit is that Paperclip can run Claude/Codex/custom ACP agents
through ACPX while keeping operator configuration, skills, logging, and
transcript rendering inside the existing adapter model.

## What Changed

- Added `@paperclipai/adapter-acpx-local` with server execution, config
schema, ACPX session handling, CLI formatting, UI config helpers, and
stdout parsing.
- Registered `acpx_local` across CLI, server, shared constants, UI
adapter metadata, adapter capabilities, and agent creation/editing
surfaces.
- Added ACPX runtime execution support with persistent sessions,
local-agent JWT environment handling, skill snapshots, runtime skill
materialization, and isolation/security regressions.
- Added ACPX adapter diagnostics and marked the adapter experimental in
the UI.
- Added command/env secret redaction for resolved command metadata in
adapter-utils, server event storage, and the Agent Detail invocation UI.
- Added Storybook coverage for ACPX config, transcript rendering, and
skill states, plus PR screenshots under `docs/pr-screenshots/pap-2944/`.
- Rebased the branch onto current `public-gh/master`; `pnpm-lock.yaml`
is intentionally not included and there are no migration/schema changes.

## Verification

- `pnpm exec vitest run
packages/adapters/acpx-local/src/server/execute.test.ts
packages/adapters/acpx-local/src/server/test.test.ts
packages/adapters/acpx-local/src/cli/format-event.test.ts
packages/adapters/acpx-local/src/ui/parse-stdout.test.ts
packages/adapter-utils/src/server-utils.test.ts
server/src/__tests__/redaction.test.ts
server/src/__tests__/acpx-local-execute.test.ts
server/src/__tests__/acpx-local-skill-sync.test.ts
server/src/__tests__/acpx-local-adapter-environment.test.ts
server/src/__tests__/adapter-routes.test.ts
server/src/__tests__/agent-skills-routes.test.ts
ui/src/adapters/metadata.test.ts` — 12 files, 87 tests passed.
- `pnpm --filter @paperclipai/adapter-acpx-local typecheck` — passed.
- `pnpm --filter @paperclipai/server typecheck` — passed.
- `pnpm --filter @paperclipai/ui typecheck` — passed.
- Confirmed PR diff does not include `pnpm-lock.yaml`, database schema
files, or migrations.

Screenshots:

![ACPX Claude skills
light](https://github.com/cryppadotta/paperclip-1/blob/PAP-2944-acpx-make-a-claude_local-adapter-that-uses-acpx-instead/docs/pr-screenshots/pap-2944/skills-claude-light.png?raw=true)
![ACPX Claude skills
dark](https://github.com/cryppadotta/paperclip-1/blob/PAP-2944-acpx-make-a-claude_local-adapter-that-uses-acpx-instead/docs/pr-screenshots/pap-2944/skills-claude-dark.png?raw=true)
![ACPX custom skills
light](https://github.com/cryppadotta/paperclip-1/blob/PAP-2944-acpx-make-a-claude_local-adapter-that-uses-acpx-instead/docs/pr-screenshots/pap-2944/skills-custom-light.png?raw=true)

## Risks

- Medium risk: this introduces a new built-in adapter package and
touches runtime execution, adapter registration, agent config, skills,
and transcript rendering.
- ACPX and ACP agent behavior can vary by installed tool versions; the
adapter is marked experimental to set operator expectations.
- `pnpm-lock.yaml` is excluded per repository PR policy, so dependency
lock refresh must be handled by the repo’s automation or maintainers.
- No database migration risk: no schema or migration files changed.

> For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and
discuss it in `#dev` before opening the PR. Feature PRs that overlap
with planned core work may need to be redirected — check the roadmap
first. See `CONTRIBUTING.md`.

## Model Used

- OpenAI Codex coding agent based on GPT-5, with repository tool use,
shell execution, git operations, and local verification. Exact hosted
context window was not exposed in this environment.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>

server/src/adapters/builtin-adapter-types.ts

@@ -2,6 +2,7 @@
  * Adapter types shipped with Paperclip. External plugins must not replace these.
  */
 export const BUILTIN_ADAPTER_TYPES = new Set([
+  "acpx_local",
   "claude_local",
   "codex_local",
   "cursor",

server/src/adapters/registry.ts

@@ -1,5 +1,14 @@
 import type { AdapterModelProfileDefinition, ServerAdapterModule } from "./types.js";
 import { getAdapterSessionManagement } from "@paperclipai/adapter-utils";
+import {
+  execute as acpxExecute,
+  testEnvironment as acpxTestEnvironment,
+  sessionCodec as acpxSessionCodec,
+  getConfigSchema as getAcpxConfigSchema,
+  listAcpxSkills,
+  syncAcpxSkills,
+} from "@paperclipai/adapter-acpx-local/server";
+import { agentConfigurationDoc as acpxAgentConfigurationDoc } from "@paperclipai/adapter-acpx-local";
 import {
   execute as claudeExecute,
   listClaudeSkills,
@@ -154,6 +163,22 @@ const claudeLocalAdapter: ServerAdapterModule = {
   getQuotaWindows: claudeGetQuotaWindows,
 };
 
+const acpxLocalAdapter: ServerAdapterModule = {
+  type: "acpx_local",
+  execute: acpxExecute,
+  testEnvironment: acpxTestEnvironment,
+  listSkills: listAcpxSkills,
+  syncSkills: syncAcpxSkills,
+  sessionCodec: acpxSessionCodec,
+  sessionManagement: getAdapterSessionManagement("acpx_local") ?? undefined,
+  supportsLocalAgentJwt: true,
+  supportsInstructionsBundle: true,
+  instructionsPathKey: "instructionsFilePath",
+  requiresMaterializedRuntimeSkills: false,
+  agentConfigurationDoc: acpxAgentConfigurationDoc,
+  getConfigSchema: getAcpxConfigSchema,
+};
+
 const codexLocalAdapter: ServerAdapterModule = {
   type: "codex_local",
   execute: codexExecute,
@@ -335,6 +360,7 @@ const pausedOverrides = new Set<string>();
 
 function registerBuiltInAdapters() {
   for (const adapter of [
+    acpxLocalAdapter,
     claudeLocalAdapter,
     codexLocalAdapter,
     openCodeLocalAdapter,

server/src/adapters/utils.ts

@@ -64,7 +64,8 @@ export function buildInvocationEnvForLogs(
 
   const resolvedCommand = options.resolvedCommand?.trim();
   if (resolvedCommand) {
-    merged[options.resolvedCommandEnvKey ?? "PAPERCLIP_RESOLVED_COMMAND"] = resolvedCommand;
+    merged[options.resolvedCommandEnvKey ?? "PAPERCLIP_RESOLVED_COMMAND"] =
+      serverUtils.redactCommandTextForLogs(resolvedCommand);
   }
 
   return redactEnvForLogs(merged);