## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies
> - Issue detail is where operators coordinate review, approvals, and
follow-up work with active runs
> - That thread UI needs to surface blockers, descendants, review
handoffs, and reply ergonomics clearly enough for humans to guide agent
work
> - Several small gaps in the issue-thread flow were making review and
navigation clunkier than necessary
> - This pull request improves the reply composer, descendant/blocker
presentation, interaction folding, and review-request handoff plumbing
together as one cohesive issue-thread workflow slice
> - The benefit is a cleaner operator review loop without changing the
broader task model
## What Changed
- restored and refined the floating reply composer behavior in the issue
thread
- folded expired confirmation interactions and improved post-submit
thread scrolling behavior
- surfaced descendant issue context and inline blocker/paused-assignee
notices on the issue detail view
- tightened large-board first paint behavior in `IssuesList`
- added loose review-request handoffs through the issue
execution-policy/update path and covered them with tests
## Verification
- `pnpm vitest run ui/src/pages/IssueDetail.test.tsx`
- `pnpm vitest run server/src/__tests__/issues-service.test.ts
server/src/__tests__/issue-execution-policy.test.ts`
- `pnpm exec vitest run --project @paperclipai/ui
ui/src/components/IssueChatThread.test.tsx
ui/src/components/IssueProperties.test.tsx
ui/src/components/IssuesList.test.tsx ui/src/lib/issue-tree.test.ts
ui/src/api/issues.test.ts`
- `pnpm exec vitest run --project @paperclipai/adapter-utils
packages/adapter-utils/src/server-utils.test.ts`
- `pnpm exec vitest run --project @paperclipai/server
server/src/__tests__/issue-comment-reopen-routes.test.ts -t "coerces
executor handoff patches into workflow-controlled review wakes|wakes the
return assignee with execution_changes_requested"`
- `pnpm exec vitest run --project @paperclipai/server
server/src/__tests__/issue-execution-policy.test.ts
server/src/__tests__/issues-service.test.ts`
## Visual Evidence
- UI layout changes are covered by the focused issue-thread component
and issue-detail tests listed above. Browser screenshots were not
attachable from this automated greploop environment, so reviewers should
use the running preview for final visual confirmation.
## Risks
- Moderate UI-flow risk: these changes touch the issue detail experience
in multiple spots, so regressions would most likely show up as
thread-layout quirks or incorrect review-handoff behavior
> 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 GPT-5-based coding agent with tool use and code execution
in the Codex CLI 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 or documented the visual verification path
- [ ] 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>
## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies.
> - This branch extends the issue control-plane so board operators can
pause, cancel, and later restore whole issue subtrees while keeping
descendant execution and wake behavior coherent.
> - That required new hold state in the database, shared contracts,
server routes/services, and issue detail UI controls so subtree actions
are durable and auditable instead of ad hoc.
> - While this branch was in flight, `master` advanced with new
environment lifecycle work, including a new `0065_environments`
migration.
> - Before opening the PR, this branch had to be rebased onto
`paperclipai/paperclip:master` without losing the existing
subtree-control work or leaving conflicting migration numbering behind.
> - This pull request rebases the subtree pause/cancel/restore feature
cleanly onto current `master`, renumbers the hold migration to
`0066_issue_tree_holds`, and preserves the full branch diff in a single
PR.
> - The benefit is that reviewers get one clean, mergeable PR for the
subtree-control feature instead of stale branch history with migration
conflicts.
## What Changed
- Added durable issue subtree hold data structures, shared
API/types/validators, server routes/services, and UI flows for subtree
pause, cancel, and restore operations.
- Added server and UI coverage for subtree previewing, hold
creation/release, dependency-aware scheduling under holds, and issue
detail subtree controls.
- Rebased the branch onto current `paperclipai/paperclip:master` and
renumbered the branch migration from `0065_issue_tree_holds` to
`0066_issue_tree_holds` so it no longer conflicts with upstream
`0065_environments`.
- Added a small follow-up commit that makes restore requests return `200
OK` explicitly while keeping pause/cancel hold creation at `201
Created`, and updated the route test to match that contract.
## Verification
- `pnpm --filter @paperclipai/db typecheck`
- `pnpm --filter @paperclipai/shared typecheck`
- `pnpm --filter @paperclipai/server typecheck`
- `pnpm --filter @paperclipai/ui typecheck`
- `cd server && pnpm exec vitest run
src/__tests__/issue-tree-control-routes.test.ts
src/__tests__/issue-tree-control-service.test.ts
src/__tests__/issue-tree-control-service-unit.test.ts
src/__tests__/heartbeat-dependency-scheduling.test.ts`
- `cd ui && pnpm exec vitest run src/components/IssueChatThread.test.tsx
src/pages/IssueDetail.test.tsx`
## Risks
- This is a broad cross-layer change touching DB/schema, shared
contracts, server orchestration, and UI; regressions are most likely
around subtree status restoration or wake suppression/resume edge cases.
- The migration was renumbered during PR prep to avoid the new upstream
`0065_environments` conflict. Reviewers should confirm the final
`0066_issue_tree_holds` ordering is the only hold-related migration that
lands.
- The issue-tree restore endpoint now responds with `200` instead of
relying on implicit behavior, which is semantically better for a restore
operation but still changes an API detail that clients or tests could
have assumed.
> 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 in the Paperclip Codex runtime (GPT-5-class
tool-using coding model; exact deployment ID/context window is not
exposed inside this session).
## 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
- [ ] If this change affects the UI, I have included before/after
screenshots
- [ ] 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>
