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Nicky LeachandClaude Opus 5.5
aa8372fd5d
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Native Runner sessions keep one provider conversation across task turns, so Paperclip accounts usage per run. > - Codex can report more usage for a turn after its run's charge was posted. > - The Runner then marked the session `reconciliation_required`. If another run was attached, it also failed that run. Core refused the delivery with `native_usage_after_finalization_requires_reconciliation`. > - That usage has already happened. Blocking the session cannot undo it, and the debt waited for an operator while the run totals stayed wrong. > - Codex totals are cumulative, and the Runner already knows the owning run in most cases. So the correct amount can be posted automatically. > - This pull request reports the exact increment with its owner, and posts it to the owning run as a separate cost event. > - The benefit is that run accounting becomes correct without stopping work, and an old run's usage can no longer fail a newer run. ## Linked Issues or Issue Description No issue exists. I searched open and closed pull requests and issues for "late usage", `native_usage_after_finalization_requires_reconciliation` and `codex_usage_accounting_integrity`. I found no duplicate. **What happened?** Code review found this while diagnosing session recovery failures. When Codex reported usage above the known total for a turn that was not active, the Runner blocked the session. If that turn belonged to a previous run, the Runner also failed the attached run with `codex_usage_accounting_integrity`. Core kept the receipt as debt, and could correct it automatically only if the token counts were unchanged. **Expected behavior** Late usage does not stop any run or session. The charge goes to the run that used the tokens, and it is auditable. **Steps to reproduce** 1. Finish a Codex turn on a native Runner session and attach the next run. 2. Have Codex send `thread/tokenUsage/updated` with a higher total for the finished turn. 3. On the unfixed code, the attached run fails and later attaches are refused. `late_codex_usage_requires_durable_reconciliation_before_or_after_handoff` encoded this behavior. **Paperclip version or commit** `master` at `04a24f4e06`. **Deployment mode** Any deployment that uses a native Runner with Codex. ## What Changed - **Runner:** late usage no longer sets `reconciliation_required` or fails a run. For a turn that belongs to a previous run, the Runner emits `usage.reported` with the increment in `runDelta` and the owner in `reconciliation.priorOrigin`. `runDeltaAvailable` stays `false`, so an older Core does not bill it to the attached run. - **`CodexRunUsage::absorb_late_usage`:** treats only usage above the known thread total as late, and keeps the attached run's delta unchanged. A report at or below that total adds nothing, so the sum across runs always equals the thread total and a replay cannot charge twice. - **Delivery:** `captureLateUsageForOwner` stores the increment as a late receipt on the owning run. The owner must be a finished run in the same company and native session. If the Runner cannot name the owner, Core uses the session's last finished run and records the attribution as `inferred`. - **Local Runner:** late usage stays with the run that is active when it arrives, or the next run. Usage reported between two runs stays in the next run's delta, so the total stays exact. - **Accounting:** `reconcileLateRunUsageReceiptInTransaction` posts a token increase as a new cost event with the key `heartbeat:<run>:late:<receipt>`. It updates the run totals so the accounting integrity check still agrees, records `cost.late_usage_posted` in the activity log, and queues budget evaluation. - **No more refusal:** `persistUsageReceipt` no longer throws after it saves late evidence, so late usage cannot wedge a Runner outbox. - **Covered receipts:** an older same-source receipt at or below the accepted totals, with matching billing, is cleared because a newer cumulative receipt already covers it. Conflicting billing stays as debt. - **Older Runners:** a zero-filled invalidation stays on the delivering run. - **Unchanged:** a newer lower total, a changed model or billing type, and per-model receipts stay as visible accounting debt for an operator. - **Unchanged:** an unexpected provider message during the warm attachment drain still fails closed. A separate change addresses that gate. - **Docs:** added "Late provider usage" to `doc/execution-semantics.md`. ## Verification - `cd packages/paperclip-runner/runner && cargo test --locked -p paperclip-runner-core --test codex_provider`: 99 passed, 2 ignored. - `cargo test --locked -p paperclip-runner-core --lib codex_usage`: 7 passed. This includes new tests for the out-of-order and repeated report cases. - `cd server && pnpm exec vitest run src/services/run-cost-accounting.test.ts src/services/native-runtime/native-usage-delivery.integration.test.ts src/services/native-runtime/native-recovery-usage-delivery.test.ts src/__tests__/cost-data-quality.test.ts`: passed against embedded PostgreSQL before the last review fixes, and the accounting and delivery files were re-run after them. - `npx tsc --noEmit -p .` in `server` reports no errors. - New tests cover exact and inferred owners, repeated delivery, late usage that arrives before the owner's charge posts, another session's run, an older Runner's report with no increment, a same-run increase, and a lower total. They also run the accounting integrity check after posting. - **Review:** Greptile Apex scored 1/5, 4/5, 3/5, 2/5 and 4/5 while findings were fixed, then 5/5 at the current head. - **Local Runner:** driver tests cover usage reported between two runs, including across a restore. No end-to-end local run has exercised it. - **Not run locally:** the full test suite. CI provides that coverage. - **Not verified live:** a read-only check of a test deployment found no late receipts in its history, so this path has only run against fixtures. ## Risks - **Run totals can rise after a run finishes.** This is deliberate. The correction is a separate cost event and an activity log entry. - **Budgets are corrected after the fact.** A late charge can put an agent over budget after later work has started. Budget evaluation runs after each correction, but it cannot prevent that work. - **Local sessions accept imperfect attribution by design.** Their late usage can land on the active or next run, because local sessions have no durable path for routing it. This also applies after a Stop or a pause. The total stays exact. - **Out-of-order reports can leave tokens on the wrong run in the session.** If a prior turn's report arrives after the attached run has already counted past that total, those tokens stay on the attached run. Moving them would need a lower correction to the attached run. The total stays exact. - **Inferred attribution can name the wrong run in the session.** The usage still belongs to that session and the total stays correct. The attribution is recorded as `inferred`. - **A session with no finished run charges the delivering run,** as an inferred late charge after its own charge posts. - **Rollout order:** deploy Core before the Runner. An older Core would keep this event on the attached run as incomplete usage, and would still refuse a same-run late receipt. - **Migrations:** this change has no migration. > For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and discuss it in `#dev` before opening the PR. Feature PRs that overlap with planned core work may need to be reworked. ## Model Used - Anthropic Claude Opus 5.5 (`claude-opus-5-5`), through Claude Code, with tool use and code execution. A human directed the design and approved the scope. ## 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 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>