Commit Graph

2 Commits

Author SHA1 Message Date
Tom Boucher
918f987a19 feat(#2982): extend no-source-grep lint to catch var-binding readFileSync.includes() (#2985)
* feat(#2982): extend no-source-grep lint to catch var-binding readFileSync.includes()

The base lint (scripts/lint-no-source-grep.cjs) only catches
readFileSync(...).<text-method>() chained directly. The much more
common var-binding form escapes it:

  const src = fs.readFileSync(p, 'utf8');
  // 50 lines later
  if (src.includes('foo')) {}        // ← still grep, lint missed it

Scan of the test suite found ~141 files using this pattern.

Implementation built TDD per #2982 with structured-IR assertions:

  scripts/lint-no-source-grep-extras.cjs
    - detectVarBindingViolations(src) — pure detector, two passes:
      pass 1 collects vars bound from readFileSync, pass 2 finds any
      <var>.<includes|startsWith|endsWith|match|search>( on those vars.
    - detectWrappedAssertOkMatch(src) — flags
      assert.ok(<expr>.match(...)) which escapes the assert.match rule.
    - VIOLATION enum exposes stable codes for tests to assert on.

  scripts/lint-no-source-grep.cjs
    - Wires the new detectors into the existing per-file check; one
      additional violation row per file with the first 3 sample tokens.

  tests/bug-2982-lint-var-binding.test.cjs
    - 13 tests, all assertions on typed VIOLATION enum / structured
      records. Covers all 5 text-match methods, multi-var, no-bind,
      string literal (must NOT trigger), wrapped assert.ok(.match),
      and assert.match (must NOT double-flag).

Migration backlog (#2974 expanded scope):

  - 42 files annotated `// allow-test-rule: source-text-is-the-product`
    (legitimate — they read .md/.json/.yml files whose deployed text
    IS the product)
  - 3 files annotated `// allow-test-rule: pending-migration-to-typed-ir [#2974]`
    (read .cjs/.js source — clear migration debt)
  - 95 files annotated `pending-migration-to-typed-ir [#2974]` with
    `Per-file review may reclassify as source-text-is-the-product
    during migration` (mixed — manual review under #2974)

After this lands the lint reports 0 violations on main; new
violations in PRs surface immediately.

Closes #2982
Refs #2974

* test(#2982): fix truncated test name per CR

The label ended with a bare '(' from a copy-paste mishap. Now reads
'does NOT flag .matchAll(...) — matchAll is not match, so
assert.ok(.matchAll(...)) is not flagged'.

* chore(#2982): add changeset fragment for PR #2985

* chore(#2982): add changeset fragment for PR #2985
2026-05-01 19:50:10 -04:00
Tibsfox
820543ee9f feat(references): add common bug patterns checklist for debugger agent (#1780)
* feat(references): add common bug patterns checklist for debugger

Create a technology-agnostic reference of ~80%-coverage bug patterns
ordered by frequency — off-by-one, null access, async timing, state
management, imports, environment, data shape, strings, filesystem,
and error handling. The debugger agent now reads this checklist before
forming hypotheses, reducing the chance of overlooking common causes.

Closes #1746

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix(references): use bold bullet format in bug patterns per GSD convention (#1746)

- Convert checklist items from '- [ ]' checkbox format to '- **label** —'
  bold bullet format matching other GSD reference files
- Scope test to <patterns> block only so <usage> section doesn't fail
  the bold-bullet assertion

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-07 08:13:58 -04:00