[eslint-refiner] ESLint Refiner daily report — 2026-09-27

[github-actions[bot]]

ESLint Refiner — daily report, 2026-09-27

Reviewed one previously-zero-live-call-site rule against the current corpus and found a genuine, first-ever-live false positive. All 62 registered rules now have at least one review; today used a new "re-grep previously-ungrounded theories against the current corpus" method since the codebase does evolve file-by-file even though git log diffing has been dead for 10 consecutive runs (shallow-clone squash commits show all-insertions, zero deletions, every day).

Key metrics

Metric	Value
Rules registered	62 (unchanged since 09-19)
Rules reviewed today	1 (no-math-minmax-array-spread, re-grounded)
Issues filed today	1
Open eslint-factory issues (tracker)	4 known + 1 new today = 5
HEAD	ba0499c (#63747) — 10th consecutive all-insertions squash artifact

Issue filed today

no-math-minmax-array-spread: false positive on identifiers holding statically-bounded arrays

Math.max(...times) in actions/setup/js/daily_aic_api_budget.cjs:24-25 flags a variable (times = [reset, retryAt].filter(...)) that can never hold more than 2 elements — nowhere near the crash-risk size the rule targets. The rule only recognizes inline array literals as bounded; it never traces an identifier back to its declaration. This is the rule's first-ever live occurrence in the corpus (previously zero call sites existed), so it's a real firing false positive, not a latent theory.

Full grounding detail

• Root cause: isUnboundedSpreadArgument in no-math-minmax-array-spread.ts treats every Identifier / MemberExpression / CallExpression as unbounded, with no scope resolution back to the declaration.
• Test-suite gap: no-math-minmax-array-spread.test.ts only tests identifiers with no traceable initializer (bare values) as invalid, and only an inline spread (Math.max(...[1,2,3])) as the bounded/valid case. No test covers an identifier whose initializer is itself a fixed-size literal.
• Suggested fix: single-hop scope resolution of the spread identifier to its declaration; if the initializer is a plain ArrayExpression (optionally through non-growing chain calls like .filter()/.slice()), treat as bounded.
• Filed with concrete acceptance criteria and target test cases.

Other theories re-checked today (no new issue)

Re-confirmed unchanged / still ungrounded

• core-method-resolve.ts 2-hop alias theory (7 consumer rules) — still zero const x = core; matches anywhere in the corpus.
• no-json-stringify-equality indirect-variable/indirect-template-literal gap — 103 files match = JSON.stringify(...) but, as in the 09-23/09-24/09-25 checks, every non-test match is an unrelated single assignment, not the indirect-then-compared shape. 4th consecutive non-refile; chronic theme (2 prior expiries: no-json-stringify-equality: misses indirect template-literal comparisons (live gap: trace_graders.cjs gradeLoops) #57869/no-json-stringify-equality: still misses indirect template-literal comparisons -- recurrence of expired issue 57869 #59892).
• require-spawn-error-listener nested-function reachability gap — still exactly 3 live spawn() sites (process_runner.cjs:127, start_mcp_gateway.cjs:905, apply_samples.cjs:629), all correctly guarded, unchanged since 09-18.

Tracker watch list

Open issues and aging

• #63566 — require-escaped-regexp-interpolation regex-fragment-constant gap (filed 09-26, 1 day old)
• #63359 — require-fetch-response-body-try-catch chain-unwrap gap, recurrence of require-fetch-response-body-try-catch: trailing .catch()/.then() on the body-read call hides it from the rule #61542 (2 days old)
• #62560 — no-string-fallback-for-non-string-message alias-type-narrowing FP, recurrence of no-string-fallback-for-non-string-message: false positive on type-narrowed catch-param alias (safeoutputs_cli.cjs:48) #60757 (5 days old — past where prior first-expiries have historically landed, watch closely)
• #62317 — require-invalid-date-check-before-compare arithmetic-derived-duration recurrence, recurrence of require-invalid-date-check-before-compare misses arithmetic-derived duration variables (live gap in check_rate_limit.cjs) #60577 (6 days old — likewise past the typical expiry window)

Chronic, do-not-refile themes (2+ expiries, no new grounding — flagged for a human/PR-capable workflow, not for another issue filing):

• try-catch-rule-utils.ts VariableDeclaration-suggestion gap, affecting ~14 fs-sync/child-process rules (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, both expired).
• no-json-stringify-equality indirect-operand gap (no-json-stringify-equality: misses indirect template-literal comparisons (live gap: trace_graders.cjs gradeLoops) #57869/no-json-stringify-equality: still misses indirect template-literal comparisons -- recurrence of expired issue 57869 #59892, both expired).
• require-error-code-in-thrown-error's two themes (require-error-code-in-thrown-error: ERROR_CODE_PATTERN does not recognize error_codes.cjs non-ERR_/E0xx exports #61285/require-error-code-in-thrown-error: nested identifier aliases inside binary/template messages bypass write-once resolution (fals #61284, both expired, re-audited 09-24 as still ungrounded).

Known upstream fixes that landed without issue closure (this workflow has no close_issue/add_comment safe-output — needs a human or PR-capable workflow to verify and close): #61044 (09-23), #61543 (09-24).

Next actions

• Watch #62317 and #62560 for their first expiry next run — both are now past the ~1-week window where prior recurrences have historically expired.
• Continue the periodic re-grep method on remaining previously-ungrounded theories (core-method-resolve.ts, no-json-stringify-equality, no-unsafe-promise-catch-error-property) since the corpus evolves even though git-log diffing stays unusable.
• README.md still documents only 2 of 62 rules — worth a documentation pass at some point, not urgent enough for its own issue yet.

Generated by 🤖 ESLint Refiner · claude · agent · 177.9 AIC · ⌖ 10.3 AIC · ⊞ 5.9K · ◷

• expires on Sep 27, 2026, 9:30 PM UTC-08:00

[github-actions[bot]]

This discussion has been marked as outdated by ESLint Refiner.

A newer discussion is available at Discussion #63936.