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DottaandPaperclip
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## Thinking Path > - Paperclip manages AI-agent work and its connected tools. > - Idle hosted instances need their database and network activity to stop. > - The maintenance tick queries tool connections even when no health check is due. > - Existing connection rows already contain eligibility and the last health observation. > - This pull request reconstructs health deadlines and refreshes them after committed changes. > - The shared coordinator preserves retries, drain, and shutdown without another private timer. ## Linked Issues or Issue Description **What happened?** The aggregate maintenance tick scans connection health every 30 seconds. Empty instances and connections with fresh health observations still cause SQL activity. **Expected behavior** No eligible connection means no recurring health SQL. Eligible connections retain the existing 15-minute proactive check. Configuration changes and health observations update the schedule after commit. **Steps to reproduce** Start a server with heartbeat scheduling enabled and no tool connections. Let startup finish and observe two maintenance ticks. The old code repeats the health inventory query. The new startup regression verifies that those ticks do not invoke the health inventory. **Paperclip version or commit** This branch includes merged parent #17518 and master `96727b3cfefb61f85ffe1fbc29a9b6dd6837efe8`. The 47 changed paths belong to the single tool-connection health duty. No database file differs from master. Related: #14638 covers runtime-auth exclusions. #15448, #15325, and #11910 concern MCP failure classification. This PR preserves those provider policies and does not replace their work. ## What Changed - Keep the GitHub error-projection unit fixture at the health-write boundary and verify the real transaction path in the PostgreSQL health-worker suite. - Add a health schedule owned by tool access. Read lean eligibility fields and saved observation timestamps. - Register health work with the existing coordinator. Refresh only dirty connection/application/company scopes using bounded inventory pages, check due connections in fair company batches, continue concrete due backlog after one second, and retain failures with backoff. - Notify before supported eligibility and observation writes in their owning transactions. Cover API/gallery setup, OAuth, catalog/gateway observations, email, voice, access removal, deletion, and settings. - Commit connection creation with grant, binding, and runtime-slot SQL before its wake. Keep provider calls outside the new transactions. - Keep provider-to-transport mapping in the chat catalog. SDK-only chat changes do not wake health work. - Replace aggregate health scans, retain the public manual sweep, and document the producer audit and remaining sleep limits. - Keep metadata-only example and Smoke Lab installs scoped. Lock and re-read application type before publishing a real eligibility change. - Keep failed inventory reads on their own retry deadline while healthy due batches continue. - Apply fixture migrations before using external disposable databases in all six producer suites. ## Verification Published head: `8c1d293d1ae2b7db753ab20f5a2a2edec1fb0a62`. Fresh CI and reviews are required for this exact head. - **623 distinct targeted cases pass.** The final four complete health, fair-batching, GitHub health recovery, and startup suites pass 80 cases after the retry fix. Five complete producer suites pass 543 cases: tool access 469, access 18, email 45, GitHub events four, and Smoke Lab seven. The earlier 26 health cases are part of this total, not additional cases. - The six producer suites first passed against separate, initially empty PostgreSQL 17 databases at `acbf262843`. They apply their own migrations. The subsequent repair changes only the health worker and its regression; its complete final consumer suites pass on that integrated parent. Server typecheck and build pass with the final repair. - **Installer amplification:** five real installs with 205 unrelated connections reproduced 1,035 example rows and 1,045 Smoke Lab rows. Repeated metadata installs now load only changed fixture connections. The same cases restore an excluded application through each installer and require all 205 unrelated IDs to re-enter the schedule. - **Concurrent eligibility:** a real PostgreSQL lock-wait case requires the installer to notify after a concurrent type change. A mutation that retains the lock but uses the old lookup fails the settled-hint assertion; original source was restored byte for byte. - **Retry isolation:** the failing baseline read one unavailable company three times while another company's 60 due checks drained. Final tests require one initial read, at least 30 seconds between failed reads, prompt healthy progress, eventual recovery, and SQL quiet after settlement. - Real-service producer coverage includes AgentMail activation/pause, GitHub installation changes, and member access removal. Lifecycle coverage includes outer commit/rollback, startup reconstruction, drain/resume, failure, and shutdown. - Failure history and exact evidence scope: [health acceptance](https://github.com/paperclipai/paperclip/blob/8c1d293d1ae2b7db753ab20f5a2a2edec1fb0a62/doc/idle-tool-connection-health.md#acceptance-follow-up-after-the-plugin-parent-merged-october-27), [producer audit](https://github.com/paperclipai/paperclip/blob/8c1d293d1ae2b7db753ab20f5a2a2edec1fb0a62/doc/plans/2026-10-24-tool-connection-health-sleep-audit.md). Prior remote failures and earlier 706-case evidence remain historical. Startup tests emitted listener-count warnings; all assertions passed. No full local repository-suite, deployed sleep, fleet savings, or live provider qualification claim is made. ## Risks - Supported live writers must use the transaction signals. Independent SQL writers and other replicas need their own wake integration. - Configured eligible connections still have a real proactive health obligation. This does not prove Cloud alarm coverage or host/database suspension. - Existing manual probes and catalog operations can overlap. This migration does not introduce a credential-version CAS or change provider failure policy. - Voice remains eligible under the previous health policy. Its generic probe can still report an unsupported transport; changing that behavior is separate work. - No database migration, new table, workflow, or lockfile change. This PR includes its merged parent and current inspected master; later stack PRs and all current-head acceptance gates remain separate. ## Model Used OpenAI Codex, GPT-6 family, with repository tools, code execution, and reasoning. The exact serving version 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 (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 - [ ] All Paperclip CI gates are green - [ ] 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>