what your AI knows about you.
One command. Installs, runs, opens your AI personality report.
Works with Claude Code and OpenAI Codex.
Mac / Linux:
curl -fsSL https://raw.githubusercontent.com/mjwsolo/openbook/main/install.sh | bashWindows (PowerShell):
iwr -useb https://raw.githubusercontent.com/mjwsolo/openbook/main/install.ps1 | iexThat's it. One command. Installs and runs immediately.
After install, just type openbook anytime to run again.
- Your archetype — a pattern-based roast of your coding habits
- The receipts — how many times you swore, said "fix", coded at 3am
- Activity heatmap — GitHub-style contribution grid for your AI usage
- Word cloud — what you actually talk about (privacy-filtered)
- Cost estimate — what your AI habit is costing you
- Tips — personalized recommendations with cited sources
- Shareable card — download as PNG, share on X
Reads your local prompt history. No data leaves your machine unless you opt in.
| Tool | File |
|---|---|
| Claude Code | ~/.claude/history.jsonl |
| OpenAI Codex | ~/.codex/history.jsonl |
Zero dependencies. Just Python 3.8+.
- All analysis runs locally
- File paths, usernames, project names are filtered from output
- Anonymous telemetry is on by default and only sends aggregate counts (never prompt text, code, or file paths)
- Opt out anytime:
openbook --opt-out
openbook # full report + browser
openbook -t # terminal only
openbook --opt-in # enable anonymous stats sharing
openbook --opt-out # disable stats sharing
openbook --version # show versionMIT