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Skill-frontmatter PreToolUse hooks broken on Claude Code 2.1.162 (${CLAUDE_SKILL_DIR} not populated) #1871
Description
gstack skill-frontmatter PreToolUse hooks (guard, freeze, careful) use ${CLAUDE_SKILL_DIR}, which Claude Code 2.1.162 does not populate in the skill-hook execution env — it expands to empty, so e.g. guard's Edit hook runs bash /../freeze/bin/check-freeze.sh and errors on every Edit/Write (Bash for careful). Fix: use an absolute/$HOME-anchored path, or a variable CC actually provides to skill hooks, instead of ${CLAUDE_SKILL_DIR}.
Activity
garrytan commentedon Jun 8, 2026
Fixed in #1911 (v1.57.6.0). The guard/freeze/careful PreToolUse hooks no longer rely on
${CLAUDE_SKILL_DIR}(unset on Claude Code 2.1.162); they're anchored to the installed checkout path so Edit/Write/Bash stop erroring. Thanks @omariani-howdy. Auto-closes on merge.v1.57.6.0 fix wave: 8 community bugs (4 security guards failing open) (…
v1.64.0.0 fix wave: full tracker audit — 90 fixes, 52 issues closed, …