## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work.
> - External tools need explicit identity and access boundaries.
> - Shared connection credentials cannot represent every user-scoped use
case.
> - Grants must stay company-scoped and support safe delegation.
> - This pull request adds connection grants, identity rules, and their
database contract.
> - The benefit is durable control over which identity an agent may use.
## Linked Issues or Issue Description
Refs #11965
This is stack 3 of 11. It depends on stack 2 and replaces another
reviewable part of #11965.
## What Changed
- Add company and user connection grants.
- Add delegated identity and membership rules.
- Synchronize database, shared, server, and UI contracts.
- Register the grant-member replacement route in the OpenAPI surface in
the same layer that mounts it.
- Add migration 0231 with replay-safe guards and coverage.
## Verification
- `pnpm -r typecheck`
- `pnpm --filter @paperclipai/server exec vitest run
src/__tests__/tool-access-service.test.ts`
- `pnpm --filter @paperclipai/server exec vitest run
src/__tests__/openapi-routes.test.ts` (5 passed)
- `pnpm --filter @paperclipai/db check:migrations`
- `pnpm build`
## Risks
- Incorrect grant selection could expose the wrong credential scope.
- The service enforces company and subject boundaries before credential
use.
- Migration 0231 is generated, ordered after 0230, and safe to replay.
> I checked `ROADMAP.md`. This stack continues the existing app
connection work from #11965 and does not duplicate another planned item.
## Model Used
OpenAI Codex, GPT-5. The runtime model ID and context window were not
exposed. The model used reasoning, tool use, and code execution.
## 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 searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either linked a public issue or pull request with `Refs #`
- [x] I have not referenced internal or instance-local Paperclip issues
or links
- [x] My branch name describes the change and contains no internal
Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge
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Co-authored-by: Paperclip <noreply@paperclip.ing>
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