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feat: add /careful, /freeze, /guard, /unfreeze safety hook skills

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Four new on-demand skills using Claude Code's PreToolUse hooks:
- /careful: warns before destructive commands (rm -rf, DROP TABLE, force-push, etc.)
- /freeze: blocks file edits outside a specified directory
- /guard: composes both into one command
- /unfreeze: clears freeze boundary without ending session

Pure bash hook scripts with Python fallback for JSON edge cases.
Safe exceptions for build artifacts (node_modules, dist, .next, etc.).
Hook fire telemetry logs pattern name only (never command content).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Garry Tan
2026-03-18 11:05:18 -07:00
co-authored by Claude Opus 4.6
parent bc86a665b7
commit 533fdca1f2
10 changed files with 698 additions and 0 deletions
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unfreeze/SKILL.md
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---
name: unfreeze
version: 0.1.0
description: |
Clear the freeze boundary set by /freeze, allowing edits to all directories
again. Use when you want to widen edit scope without ending the session.
Use when asked to "unfreeze", "unlock edits", "remove freeze", or
"allow all edits".
allowed-tools:
- Bash
- Read
---
<!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly -->
<!-- Regenerate: bun run gen:skill-docs -->
# /unfreeze — Clear Freeze Boundary
Remove the edit restriction set by `/freeze`, allowing edits to all directories.
```bash
mkdir -p ~/.gstack/analytics
echo '{"skill":"unfreeze","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","repo":"'$(basename "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null || echo "unknown")'"}' >> ~/.gstack/analytics/skill-usage.jsonl 2>/dev/null || true
```
## Clear the boundary
```bash
STATE_DIR="${CLAUDE_PLUGIN_DATA:-$HOME/.gstack}"
if [ -f "$STATE_DIR/freeze-dir.txt" ]; then
PREV=$(cat "$STATE_DIR/freeze-dir.txt")
rm -f "$STATE_DIR/freeze-dir.txt"
echo "Freeze boundary cleared (was: $PREV). Edits are now allowed everywhere."
else
echo "No freeze boundary was set."
fi
```
Tell the user the result. Note that `/freeze` hooks are still registered for the
session — they will just allow everything since no state file exists. To re-freeze,
run `/freeze` again.
unfreeze/SKILL.md.tmpl
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---
name: unfreeze
version: 0.1.0
description: |
Clear the freeze boundary set by /freeze, allowing edits to all directories
again. Use when you want to widen edit scope without ending the session.
Use when asked to "unfreeze", "unlock edits", "remove freeze", or
"allow all edits".
allowed-tools:
- Bash
- Read
---
# /unfreeze — Clear Freeze Boundary
Remove the edit restriction set by `/freeze`, allowing edits to all directories.
```bash
mkdir -p ~/.gstack/analytics
echo '{"skill":"unfreeze","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","repo":"'$(basename "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null || echo "unknown")'"}' >> ~/.gstack/analytics/skill-usage.jsonl 2>/dev/null || true
```
## Clear the boundary
```bash
STATE_DIR="${CLAUDE_PLUGIN_DATA:-$HOME/.gstack}"
if [ -f "$STATE_DIR/freeze-dir.txt" ]; then
PREV=$(cat "$STATE_DIR/freeze-dir.txt")
rm -f "$STATE_DIR/freeze-dir.txt"
echo "Freeze boundary cleared (was: $PREV). Edits are now allowed everywhere."
else
echo "No freeze boundary was set."
fi
```
Tell the user the result. Note that `/freeze` hooks are still registered for the
session — they will just allow everything since no state file exists. To re-freeze,
run `/freeze` again.