[eslint-refiner] ESLint Refiner — daily report (2026-10-02)

[github-actions[bot]]

Overview: ruleCount bumped 63 → 64 with a new rule, no-async-foreach-callback, shipped since yesterday's run. Gave it a full first-pass ground-truth review against the live actions/setup/js/**/*.cjs corpus — found it clean. Zero new issues filed today. Open-issue snapshot unchanged from 2026-10-01, with the oldest item now at the historical first-expiry window.

Key metrics

Metric	Value
Rules in factory	64 (+1 since 10-01)
Issues filed today	0
Open eslint-factory issues (tracked)	4
Oldest open issue	#63359, 7 days
Repo-memory size	52 KB / 12 KB patch limit — validated OK

New rule reviewed: no-async-foreach-callback

Flags Array.prototype.forEach(asyncCallback) — the promise returned by an async callback is discarded, so work isn't sequenced and rejections go unhandled.

Review detail

• Detection logic: CallExpression with a non-computed MemberExpression callee named forEach, whose first argument is an Arrow/FunctionExpression with .async === true.
• Declared limitations (per its own test suite, not bugs): computed member access (items["forEach"](async x => {})) and indirect callback references (items.forEach(handler)) are intentionally out of scope.
• Hypothesis investigated: a callback that is not literally async but still returns an unawaited promise (e.g. items.forEach(x => doAsyncWork(x).catch(...))) — same discarded-promise footgun, invisible to the async-keyword-only check.
• Grounding: collected all 39 live non-test .forEach( call sites in actions/setup/js/**/*.cjs. Zero contain await or any async/promise-returning callback — every site is a synchronous idiom (core.info, set.add, array building). No live misfire exists for either the rule's happy path or the investigated hypothesis.
• Docs: eslint-factory/README.md:1190-1208 already documents the rule accurately with correct flagged/safe-alternative examples. No doc debt.

Outcome: clean first pass, no issue filed — matching the same clean-debut pattern seen for no-single-char-string-replace on 2026-09-30.

Open issues watchlist

4 open eslint-factory issues

#	Rule	Age	Note
64186	no-github-request-interpolated-route	3d	fallback-expression Octokit client alias bypasses detection
63781	no-math-minmax-array-spread	5d	FP on identifiers holding statically-bounded arrays
63566	require-escaped-regexp-interpolation	6d	no recognition for regex-fragment constants
63359	require-fetch-response-body-try-catch	7d (oldest)	chain-unwrap gap, recurrence of #61542 — right at the historical ~1wk first-expiry window; a 2nd expiry would cross the retire threshold for this theme

Process note (for human/PR-capable follow-up)

• #64416 remains the only clean fix-and-closure cycle on record (closed completed within 9 hours on 09-30). By contrast, #61044 and #61543 were genuine upstream fixes closed not_planned by bot housekeeping. This workflow has no close/comment safe-output — flagging for a human or PR-capable workflow to reconcile issue state with actual fixes.
• The chronic try-catch-rule-utils.ts VariableDeclaration-suggestion gap (affects ~14 fs-sync/child-process-family rules, twice-filed-and-expired as eslint-factory: shared try/catch suggestion builder silently skips VariableDeclaration call sites #57868/eslint-factory: shared try/catch suggestion builder still skips VariableDeclaration call sites -- recurrence of expired issue 57 #59891) still can't be addressed via this workflow's tools (no create_pull_request safe-output) — carrying forward for a PR-capable workflow rather than filing a 3rd issue.

Next actions

1. Watch require-fetch-response-body-try-catch: chain-unwrap gap hides .catch()/.then()-chained body reads (recurrence of #61542) #63359 for expiry next run; if unfixed, this is its 2nd expiry and crosses the retire threshold.
2. No rotation re-checks due (demoted candidates only revisit on a new feature commit touching error-handling or regex/.exec() code).
3. Continue the ruleCount-bump-first discovery method each run.

Generated by 🤖 ESLint Refiner · claude · agent · 181 AIC · ⌖ 6.85 AIC · ⊞ 5.2K · ◷

• expires on Oct 2, 2026, 9:31 PM UTC-08:00

[github-actions[bot]]

This discussion has been marked as outdated by ESLint Refiner.

A newer discussion is available at Discussion #65256.