## Thinking Path
> - Paperclip helps people manage AI agents for work.
> - Agent adapters connect Paperclip to tools such as the Codex command
line tool.
> - A sandboxed Codex agent may start without a credential.
> - The operator needs a safe sign-in flow that does not expose
credentials to the shared package or the sandbox.
> - This pull request adds a company-scoped device-login flow with a
temporary Daytona sandbox.
> - The flow promotes the credential only after readiness checks pass
and removes the temporary sandbox after use.
> - The result lets an operator sign in to a sandboxed Codex agent from
the agent form.
## Linked Issues or Issue Description
**Subsystem affected**
Cross-cutting (multiple of the above)
**Problem or motivation**
A Codex adapter that runs in a sandbox cannot authenticate when the
company has no pre-provisioned Codex credential.
**Proposed solution**
Add a company-scoped device-login session. Start a temporary sandbox,
run `codex login --device-auth`, stream the code and URL, verify
readiness, promote the credential, and delete the sandbox.
**Alternatives considered**
Pre-provisioning a credential does not support first-time sandbox login.
Keeping the credential in the login sandbox does not provide a durable
company credential.
**Roadmap alignment**
This supports the roadmap item for cloud and sandbox agents.
**Additional context**
The flow uses a five-minute cleanup reaper, compare-and-set status
changes, and a PostgreSQL advisory lock to protect promotion and
cleanup.
## What Changed
- Add the adapter login-session contract, database table, and migration.
- Add company-scoped server routes and a service for sandbox device
login.
- Add credential promotion, readiness checks, and cleanup after login.
- Add restart-safe cleanup for abandoned login sandboxes.
- Add sandbox login controls to the agent creation and edit forms.
- Keep device-login and vendor identifiers out of public shared and
adapter UI symbols.
## Verification
- `pnpm --filter @paperclipai/adapter-codex-local exec vitest run`
passed with 310 tests at the submitted commit.
- The server login route, service, and reaper tests passed with 45 tests
at the submitted commit.
- The agent form render tests passed with 26 tests at the submitted
commit.
- The public-symbol leak check passed at the submitted commit.
- A live Daytona sign-in flow still requires confirmation by a user with
a live sandbox.
## Risks
The migration adds a new company-scoped table. A promotion or cleanup
race could remove a credential or leave a sandbox active, so the service
uses claims, compare-and-set transitions, and an advisory lock. The live
Daytona flow needs operator confirmation because local tests do not
provide a real browser sign-in.
## Model Used
OpenAI Codex, GPT-5, tool use and code execution, extended reasoning.
## 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 (a) linked existing issues with `Fixes: #` /
`Closes: #` / `Refs: #` OR (b) described the issue in-PR following the
relevant issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
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
---------
Co-authored-by: Paperclip <noreply@paperclip.ing>
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