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Devin FoleyandClaude Opus 5.5
db95539d46
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - A board user can permanently delete (purge) a terminated agent > - The purge deletes the agent's heartbeat runs, but cost and finance events still point to those runs > - Postgres then rejects the delete with a foreign key error, and the API returns a 500 > - Cost and finance events are accounting history. The purge must not remove them > - This pull request makes the purge check for this history first and return a clear 409 > - The benefit is a clear, expected response instead of a 500, and accounting history stays intact ## Linked Issues or Issue Description **What happened?** Permanent agent deletion failed with `Failed query: delete from "heartbeat_runs" where "heartbeat_runs"."agent_id" = $1`. The cause is `update or delete on table "heartbeat_runs" violates foreign key constraint "cost_events_heartbeat_run_id_heartbeat_runs_id_fk" on table "cost_events"`. The server reported this as an unexpected error. Sentry: PAPERCLIP-BACKEND-4Z. **Steps to reproduce** 1. Run an agent so that a heartbeat run records a cost event. 2. Terminate the agent. 3. Permanently delete (purge) the agent. **Expected behavior** The purge stops before it deletes anything. It returns a clear conflict, and the agent stays terminated. This matches the existing `agent_case_history_retained` behavior. **Actual behavior** The transaction fails on the `heartbeat_runs` delete with a raw foreign key error (500). Related, older approaches: #9130 and #1987 tried to delete cost and finance rows during agent removal. This PR keeps the ledger instead. ## What Changed - `deleteAgentDependencies` now checks for `cost_events` and `finance_events` rows that reference the agent or one of its heartbeat runs. It does this before any destructive cleanup. - If such rows exist, it throws `409 agent_cost_history_retained`. Termination stays available. - The activity-log cleanup reuses the same agent-runs subquery. - New embedded-Postgres regression test `server/src/services/agent-cost-history-deletion.test.ts`. It covers a cost event on a run, a cost event attributed to the agent, a finance event on a run, and a normal purge with no cost history. ## Verification - Without the fix, 3 of the 4 new tests fail with the exact Sentry error. Examples: `cost_events_heartbeat_run_id_heartbeat_runs_id_fk`, `cost_events_agent_id_agents_id_fk`, `finance_events_heartbeat_run_id_heartbeat_runs_id_fk`. - With the fix, all 4 pass. - Related suites pass (8 files, 249 tests): `lifecycle.test.ts`, `execution-admission/adapters/postgres.test.ts`, `decision-models.test.ts`, `prompt-injection-prevention.test.ts`, `fast-responses.test.ts`, `agent-timer-deadlines.test.ts`, `case-deletion.test.ts`, and the new test. - `tsc --noEmit` in `server/` reports 0 errors. ## Risks - Behavior change: agents with recorded cost or finance history can no longer be purged. Before this change, these purges already failed with a 500, so no purge that used to succeed is now blocked. - No schema change and no migration. - Docs follow-up: `doc/SPEC-implementation.md`, `doc/DEVELOPING.md` and `maps/agent-access-map/agents.md` describe `agent_case_history_retained`. They do not yet mention the new `agent_cost_history_retained` code. I can add that in this PR if reviewers want it. ## Model Used - Claude Opus 5.5 (`claude-opus-5-5`), agentic coding with 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 (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 - [ ] 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 - [ ] I will address all Greptile and reviewer comments before requesting merge 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>