Why: PR #144 review round 4 reproduced hooks referencing $PLUGIN_ROOT or
${PLUGIN_ROOT} without a path separator passing the audit, although apm
only rewrites ${TOKEN}/ and the deployed hook points nowhere.
- FAIL unbraced or unseparated plugin-root tokens
- check the exec bit for scripts run via an interpreter -c string
- skip env NAME=value prefixes when locating bare relative paths
- correct input: and empty-frontmatter messages, depth-walk applyTo braces
- INFO on unrecognised targets; failing-case tests for untested checks
- document tiers, blind spots and crash exit 2; drop rtk from portable flow
- restore the after-a-hand-edit trigger; pin upstream apm source URL
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KkT7RSDwDbmrM9T34b6sTi
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