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>
Garry Tan