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086e44c964
coderabbitai flagged: the two `catch` blocks in `readSessionCost`
silently swallowed every failure mode. A malformed `costs.jsonl`
row, a permission error opening the file, or any other unexpected
I/O failure would silently return zero cost — masking real
problems and feeding stale or zero numbers into
`ecc-context-monitor.js` (which then injects them as
`additionalContext` into the live model turn).
Fix two things, both fail-open-preserving:
1. **Inner JSON.parse catch** — count malformed lines and write
one aggregated breadcrumb per call:
[ecc-metrics-bridge] skipped N malformed line(s) in <path>
Aggregating (rather than per-line) keeps a log-flooded
`costs.jsonl` diagnosable without overwhelming stderr.
2. **Outer fs.readFileSync catch** — write a breadcrumb on real
errors, but stay silent on `ENOENT`. The "no costs.jsonl yet"
case is genuinely normal (no Stop event has fired this session)
and producing noise on every PreToolUse before the first Stop
would be reviewer-visible spam. All other error codes
(`EACCES`, `EISDIR`, `EMFILE`, …) get:
[ecc-metrics-bridge] failing open after <name> reading <path>: <msg>
In both cases the function still returns the zero-cost fallback
so the bridge never breaks tool execution — only the
diagnosability changes.
Two new regression tests in
`tests/hooks/ecc-metrics-bridge.test.js`:
✓ readSessionCost writes a stderr breadcrumb when malformed
lines are skipped — feeds 4 rows (2 valid, 2 malformed),
asserts the last valid row still wins AND captured stderr
contains "skipped 2 malformed line(s)".
✓ readSessionCost stays silent when costs.jsonl does not exist
(ENOENT) — uses a fresh tmp HOME with no metrics dir, asserts
zero return AND empty stderr.
Test count: 16 → 18; `npm test` green; `yarn lint` clean.
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| .. | ||
| ci | ||
| codemaps | ||
| codex | ||
| codex-git-hooks | ||
| hooks | ||
| lib | ||
| auto-update.js | ||
| build-opencode.js | ||
| catalog.js | ||
| claw.js | ||
| consult.js | ||
| discussion-audit.js | ||
| doctor.js | ||
| ecc.js | ||
| gan-harness.sh | ||
| gemini-adapt-agents.js | ||
| harness-adapter-compliance.js | ||
| harness-audit.js | ||
| install-apply.js | ||
| install-plan.js | ||
| list-installed.js | ||
| loop-status.js | ||
| observability-readiness.js | ||
| operator-readiness-dashboard.js | ||
| orchestrate-codex-worker.sh | ||
| orchestrate-worktrees.js | ||
| orchestration-status.js | ||
| platform-audit.js | ||
| preview-pack-smoke.js | ||
| release.sh | ||
| repair.js | ||
| session-inspect.js | ||
| sessions-cli.js | ||
| setup-package-manager.js | ||
| skill-create-output.js | ||
| skills-health.js | ||
| status.js | ||
| sync-ecc-to-codex.sh | ||
| uninstall.js | ||
| work-items.js | ||