Smoke 5 restart-test (chistaa session) refuted stale-process hypothesis and
identified the real bug: Stream A's pathNormalize() returned OS-native paths
(backslashes on win32) while DEFAULT_PROTECTED_PATTERNS regexes are forward-slash
only.
Trace confirmation:
Stream A pathNormalize('~/foo/bar.jsonl') on win32:
BEFORE: 'c:\\users\\admin\\foo\\bar.jsonl' — backslashes
AFTER: 'c:/users/admin/foo/bar.jsonl' — forward slashes
isProtectedPath now matches → Bash/PowerShell hooks block correctly.
Root cause: path.resolve() + fs.realpathSync() on Windows produce backslashes,
caseFold lowercases them but doesn't change separators. DEFAULT_PROTECTED_PATTERNS
in shell-content-rules.mjs are forward-slash regexes (e.g. /(^|\/)\.claude\/projects/i).
defaultPathNormalize fallback in shell-content-rules.mjs DID normalize separators,
which is why my emergency commit 25e184e5 unit-tests passed but live behavior
failed — live hooks use resolvePathNormalize() which returns Stream A's
buggy implementation.
Fix:
- path-normalization.mjs: append .split('\\').join('/') to pathNormalize output.
- path-normalization.test.mjs: +1 RED→GREEN test for win32 separator normalization.
Why previous commit 25e184e5 was incomplete:
- Added pattern to protected list ✓
- Added enforce-read-path-deny.mjs ✓ (Read tool — works because hook uses
defaultPathNormalize directly, not resolvePathNormalize)
- Did NOT detect Bash/PowerShell path-normalize integration bug (debug script
bypassed Stream A by passing defaultPathNormalize directly).
Side observation (recorded as Stream H TODO by chistaa session):
- extractPathArgs/pathDenyOverlay — non-reading path in non-first position is
not checked fully. Independent latent bug, separate fix.
Regression: 1715/1715 vitest tools GREEN (+1 separator test).
Critical: re-run Smoke 5 in clean session — expected PASS all 6 vectors now.