# Task 3: Parameterize impact tooling

**Plan**: reusable-impact-tooling
**Status**: DONE
**Deliverable**: Portable hook script, viewer, and install script

## What to do

1. Refactor `pre-compact-snapshot.sh`:
   - Remove hardcoded project paths.
   - Use `$CLAUDE_PROJECT_DIR` or `cwd` from hook input consistently.
   - Remove the debug trace line (`/tmp/precompact-debug.log`).

2. Refactor `show-impact.sh`:
   - Accept log file path as argument or auto-detect from project dir.

3. Create `install.sh` that:
   - Copies scripts to the user's `.claude/hooks/` directory.
   - Adds the PreCompact hook entry to `.claude/settings.json` (project
     or user level, user's choice).
   - Verifies `jq` is available (dependency).
   - Is idempotent (safe to run twice).

4. Organize into a self-contained directory structure:
   ```
   impact-toolkit/
     install.sh
     hooks/pre-compact-snapshot.sh
     hooks/show-impact.sh
     README.md
   ```

## Done when

- A user can clone the repo, run `install.sh`, and have impact tracking
  working in their Claude Code project.