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Garry Tan
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* feat: add /careful, /freeze, /guard, /unfreeze safety hook skills 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> * feat: add skill usage telemetry to preamble TemplateContext system passes skill name through resolver pipeline so each generated SKILL.md gets its own name baked into the telemetry line. Appends to ~/.gstack/analytics/skill-usage.jsonl on every invocation. Covers 14 preamble-using skills + 4 hook skills (inline telemetry). JSONL format: {"skill":"ship","ts":"...","repo":"my-project"} Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * feat: add analytics CLI for skill usage stats bun run analytics reads ~/.gstack/analytics/skill-usage.jsonl and shows top skills, per-repo breakdown, hook fire stats, and daily timeline. Supports --period 7d/30d/all. Handles missing/empty/malformed data. 22 unit tests cover parsing, filtering, formatting, and edge cases. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * feat: add skills-used-this-week to /retro Retro Step 2 now reads skill-usage.jsonl and shows which gstack skills were used during the retro window. Follows the same pattern as the Greptile signal and Backlog Health metrics — read file, filter by date, aggregate, present. Skips silently if no analytics data exists. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * test: add hook script and telemetry tests 32 unit tests for check-careful.sh covering all 8 destructive patterns, safe exceptions, Python fallback, and malformed input handling. 7 unit tests for check-freeze.sh covering boundary enforcement, trailing slash edge case, and missing state file. Telemetry tests verify per-skill name correctness in generated output. Adds careful/freeze/guard/unfreeze/document-release to ALL_SKILLS. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * chore: bump version to 0.6.5 + changelog + mark TODOs shipped Safety hook skills and skill usage telemetry shipped. Analytics CLI and /retro integration included. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * feat: /debug auto-freezes edits to the module being debugged Add PreToolUse hooks (Edit/Write) to debug/SKILL.md.tmpl that reference the existing freeze/bin/check-freeze.sh. After Phase 1 investigation, /debug locks edits to the narrowest affected directory. Graceful degradation: if freeze script is unavailable, scope lock is skipped. Users can run /unfreeze to remove the restriction. Deferred 6 enhancements to TODOS.md, gated on telemetry showing the freeze hook actually fires in real debugging sessions. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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name, version, description, allowed-tools, hooks
| name | version | description | allowed-tools | hooks | |||||||||||||||||||||||||||||||||||||||||
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| guard | 0.1.0 | Full safety mode: destructive command warnings + directory-scoped edits. Combines /careful (warns before rm -rf, DROP TABLE, force-push, etc.) with /freeze (blocks edits outside a specified directory). Use for maximum safety when touching prod or debugging live systems. Use when asked to "guard mode", "full safety", "lock it down", or "maximum safety". |
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/guard — Full Safety Mode
Activates both destructive command warnings and directory-scoped edit restrictions.
This is the combination of /careful + /freeze in a single command.
Dependency note: This skill references hook scripts from the sibling /careful
and /freeze skill directories. Both must be installed (they are installed together
by the gstack setup script).
mkdir -p ~/.gstack/analytics
echo '{"skill":"guard","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","repo":"'$(basename "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null || echo "unknown")'"}' >> ~/.gstack/analytics/skill-usage.jsonl 2>/dev/null || true
Setup
Ask the user which directory to restrict edits to. Use AskUserQuestion:
- Question: "Guard mode: which directory should edits be restricted to? Destructive command warnings are always on. Files outside the chosen path will be blocked from editing."
- Text input (not multiple choice) — the user types a path.
Once the user provides a directory path:
- Resolve it to an absolute path:
FREEZE_DIR=$(cd "<user-provided-path>" 2>/dev/null && pwd)
echo "$FREEZE_DIR"
- Ensure trailing slash and save to the freeze state file:
FREEZE_DIR="${FREEZE_DIR%/}/"
STATE_DIR="${CLAUDE_PLUGIN_DATA:-$HOME/.gstack}"
mkdir -p "$STATE_DIR"
echo "$FREEZE_DIR" > "$STATE_DIR/freeze-dir.txt"
echo "Freeze boundary set: $FREEZE_DIR"
Tell the user:
- "Guard mode active. Two protections are now running:"
- "1. Destructive command warnings — rm -rf, DROP TABLE, force-push, etc. will warn before executing (you can override)"
- "2. Edit boundary — file edits restricted to
<path>/. Edits outside this directory are blocked." - "To remove the edit boundary, run
/unfreeze. To deactivate everything, end the session."
What's protected
See /careful for the full list of destructive command patterns and safe exceptions.
See /freeze for how edit boundary enforcement works.