## Thinking Path
> - Paperclip orchestrates AI-agent companies through issues, documents,
runs, and durable company-scoped state.
> - Issue documents are where agents and operators capture plans,
handoffs, and work products.
> - Before this change, document collaboration could only happen through
whole-document edits and detached issue comments.
> - Inline document annotations need stable anchors, revision-aware
persistence, and UI affordances that do not break existing document
editing.
> - This pull request adds company-scoped document annotation threads,
comments, anchor snapshots, API routes, and board UI.
> - The benefit is that operators and agents can discuss specific
document passages without losing context as documents evolve.
## What Changed
- Added document annotation tables, schema exports, shared types,
validators, anchor hashing, and text-anchor helpers.
- Added server-side document annotation services and issue routes for
listing, creating, commenting, resolving, and reopening annotation
threads.
- Included annotation summaries in relevant issue document reads and
backup/recovery document workspace behavior.
- Added React UI for inline document highlights, comment panels, mobile
sheet behavior, deep-link focus, and resolved/open filtering.
- Added annotation design artifacts, Storybook coverage, screenshots,
and a screenshot helper script.
- Rebased the branch onto current `paperclipai/paperclip` `master` and
renumbered the annotation migration from `0085_old_swarm` to
`0091_old_swarm`; the SQL uses `IF NOT EXISTS` guards so environments
that previously applied the old migration number can safely apply the
new one.
- Adjusted the new annotation UI tests to use a local async flush helper
because this workspace's React 19.2.4 export does not expose
`React.act`.
## Verification
- `pnpm run preflight:workspace-links && pnpm exec vitest run
packages/shared/src/document-anchors.test.ts
server/src/__tests__/document-annotation-routes.test.ts
server/src/__tests__/document-annotations-service.test.ts
ui/src/components/DocumentAnnotationLayer.test.tsx
ui/src/components/IssueDocumentAnnotations.test.tsx
ui/src/lib/document-annotation-hash.test.ts
ui/src/lib/document-annotation-selection.test.ts`
- Confirmed `git diff --check` passes.
- Confirmed no `pnpm-lock.yaml` or `.github/workflows/*` files are
included in the PR diff.
## Risks
- Medium risk: this adds new persisted annotation tables and routes
across db/shared/server/ui.
- Migration risk is reduced by moving the branch migration to
`0091_old_swarm` after upstream `0090_resource_memberships` and keeping
the SQL idempotent for old `0085_old_swarm` adopters.
- UI risk is mostly around text range anchoring and panel positioning
across long documents, folded content, and mobile layouts; the PR
includes focused unit coverage and design screenshots.
> 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 coding agent, tool-using software engineering
mode. Context window size is not exposed in this Paperclip runtime.
## 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>
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