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## Thinking Path > - Paperclip manages agents and governs their work. > - The Runner owns execution and task authority. > - Dot executes at OpenAI and uses Paperclip through MCP. > - Dot previously required a self-hosted controller. > - Cloud must admit Dot work in a managed sandbox and keep protocol traffic in the tenant. > - This pull request adds managed Dot execution and dedicated pairing routes. > - The same Runner path can later host sandboxed workspace tools. ## Linked Issues or Issue Description **Agent or provider** OpenAI Dot, through the existing dedicated MCP adapter. Related changes: #15402, #15414, and #15581. **Why this adapter is useful** Cloud users need to assign work to Dot and let Dot request work while idle. Neither path should execute agent commands on the control-plane host or require an idle sandbox. **How the agent is invoked** The tenant serves OAuth, signed mailbox events, and scoped tools. Normal admission creates a managed sandbox for each assignment. A verified Rust Runner owns that assignment and relays its tools and results. ## What Changed - Enable the external-agent invitation in Cloud behind the standalone Dot flag. - Launch Dot through the existing managed process launcher and authenticated PRP transport. - Verify the artifact digest and Dot capability before dispatch. Read provider checkpoints from the execution target for recovery. - Reject local execution in Cloud and reject managed workspace access for this release. - Add dedicated public Dot pairing aliases. Preserve the personal assistant consent paths. - Keep Dot events in the tenant when a personal Cloud broker is configured. - Use the app-configured heartbeat for Dot-initiated work. Report terminal admission failures and fence stranded offers before new admission. - Offer normal comments through the active assignment's mailbox. Keep their wakes deferred until a successful history receipt contains the exact IDs; preserve unread comments through finish, batching and recovery without replaying consumed input. - Require a sandbox process fingerprint before dispatch and allow a bounded five-minute controller reconnect gap. Preserve remote process birth without inspecting a colliding controller PID. - Recognize authenticated remote shutdown receipts even without an OS exit code. - Document dedicated pairing aliases and teach route coverage to inspect literal path arrays. - Add opt-in private Daytona qualification and focused contract tests. ## Verification - Workspace typecheck, production build, and UI token gates passed. - Focused onboarding, OAuth, managed environment, artifact metadata, and terminal-fence tests passed. One environment-test timeout passed on an isolated repeat. - A private Daytona fixture passed with the real Rust Runner, signed readiness, assigned app tools, document writes, duplicate receipts, authority fences, completion, and sandbox deletion. - A real OpenAI Dot completed both an operator-assigned task and a Dot-initiated task in managed Daytona sandboxes. Both leases were released. - A real accepted Dot assignment survived a controller gap longer than one minute with the same sandbox process, Runner, session, and assignment. Dot consumed the normal task-comment follow-up and completed exactly once; the lease was released. - A real cancellation fenced an accepted assignment, released its lease, and received Dot's acknowledgement without claiming a global provider stop. - Final local checks: 74 Dot execution, OAuth onboarding and API contract tests after integrating the current agent-lifecycle changes, 9 real Rust driver tests, 21 remote-runtime tests plus the 3 detached-process cleanup tests, and 17 lifecycle tests passed. The final live Daytona fixture passed and deleted its sandbox. - A final real Dot follow-up stayed pending until its exact comment appeared in a successful history receipt. Dot completed the original managed assignment once; its lease was released. - The broad local suite crossed a rebase and was stopped; its failures are not a qualification of this final source. Focused repeats passed. The final head passed all CI gates: workspace types, build, general and serialized test suites, Rust and Runner verification, all browser shards, and the canary dry run. Greptile is 5/5 with both findings resolved. ## Risks - Deploy the tenant app with its current Linux Runner artifact and the corresponding front-door protocol routes together. - This branch has not been deployed to a Cloud tenant. A deployed tenant still needs an OAuth and assignment smoke test. - Dot provider usage and cost are unmetered. Revocation fences Paperclip tools and does not prove a global OpenAI stop. - Missing or changed recovery identity fails closed. No replacement Dot thread is invented. - No schema migration is added. Managed Dot workspace access remains unavailable. ## Model Used OpenAI Codex, based on GPT-6, with reasoning, tool use, code execution, and browser testing. The exact runtime model identifier and context-window size are not exposed in 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 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 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>