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<!-- entire-trail-link-start --> https://entire.com/gh/paperclipai/-/trails/58/changes/paperclip/58 <!-- entire-trail-link-end --> ## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Agent timers must start due work and preserve queue admission rules. > - The server woke their scan on every heartbeat interval, even with no eligible timer. > - Idle scans keep the database and instance active. > - This pull request derives the next deadline from saved policy and work records. > - Supported producer transactions notify the shared coordinator when eligibility changes. > - An idle timer worker stops scanning and resumes when real work or a deadline requires it. ## Linked Issues or Issue Description Refs #17863. This is slice 63 of the recurring-work migration and follows the merged issue-monitor deadline PR. Related: #16632 changes timer issue scope; #16881 changes live-run eligibility. This PR preserves the current admission policy. Those policy changes are separate work. A future time-sensitive predicate must expose its next transition deadline. **What existing behavior does this improve?** Agent timer heartbeat scheduling in the server. **Current behavior** A recurring heartbeat wakes the timer scan even when companies are paused, timers are disabled, or no actionable task exists. **Proposed behavior** Register the earliest eligible interval or positive daily-cap reset deadline. Re-read on supported producer commits and startup. Leave no recurring database scan when no timer obligation remains. ## What Changed - Keep policy and deadline calculation in the heartbeat queue. Scheduling retains company, reporting-chain, worktree, and CAS gates. - Use the existing deadline coordinator. Remove only the timer wake from the server heartbeat loop. - Notify before existing transaction writes that change eligibility or deadlines. Cover configuration, lifecycle, company budgets, task ownership, recovery, conversations, accounting corrections, and completion. - Use the lifecycle status-change hook for saved hire rejection. Cover checkout's second adoption transaction after an initial failed CAS. - Preserve pending work through idle and maintenance drains. Check cancellation between due agents. Reconstruct on restart. - Document the supported writer model and producer inventory. Add no schema, table, or provider branch. ## Verification - **1,710 passing cases across 49 complete files**, no skips, on accepted source `32db86c1974dcbf794f01a8c5e42024e2ad071fc`. Coverage includes real timer policy/CAS/producers, monitor and shared deadline consumers, native reconstruction, Slack lifecycle, skills/settings/configuration, queue isolation and agent lifecycle. - Database build, production server typechecking/build, module boundaries, target migration order and Runner profile identity pass. Twenty-nine fresh PostgreSQL 17 schemas plus per-file fixtures applied all 412 journal entries through index 413; all selected source hashes and temporary fixture imports were restored exactly. - Four new deadline composition cases verify future/overdue timing, minimum scan spacing and disarming. A controlled mutation dropping only the inherited continuation option fails; the composed source passes with identical assertions and timers. - Normal parent reconciliation preserves task-drain expiry and both deadline contracts. The final monitor-parent publication changes only its audit, preserving every qualified runtime and selected test source. - Historical failures and review corrections remain in [the timer audit](doc/idle-agent-timers.md). No full local repository-suite, live provider, measured suspend/wake, external-alarm or fleet-savings claim. Final-head CI/security, exact-head Greptile 5/5 and actionable Ponytail findings remain separate merge gates. ## Risks - Process-local notifications cover supported service/API writers in one server process. Direct SQL and independent replicas need an explicit ingress contract. Startup reconstruction is not live cross-process notification. - Notifications can batch for up to the configured heartbeat interval. Known deadlines retain their scheduler path; failed reconciliation retains bounded retry. - Enabled timers without an actionable-work requirement remain real recurring obligations. Zero caps require policy changes; positive reached caps use UTC midnight. - The timer fixture substitutes adapter enqueue. Existing admission tests also pass, but this is not deployed provider or sleep qualification. - Cloud does not gain legacy agent timer alarms in this PR. Existing sleep-safety blockers remain. No database/host suspension or fleet savings claim is made. - Parent-stack CI and review must pass before merge. This PR does not authorize merging its dependencies. ## Model Used OpenAI Codex (GPT-6-based coding agent), using repository inspection, normal Git merges, composition proofs, a controlled red/green regression and complete PostgreSQL integration suites. No subagents were used in this reconciliation. ## 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> Co-authored-by: Codex <noreply@openai.com>