What is usage-log?
usage-log is a Claude Code mod by tanuu5 that ターンが終わるたびに使用率などを記録し、7日枠の目安（ペース表）との差を入力欄の下に出す. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | tanuu5 |
| Repository | tanuu5/usage-log |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Review before installing (64/100) |
| Rank | #4,771 of 5,272 Claude Code mods; #940 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-04 |
| Hooks | 9 events |
| Sees | every tool call |
| Draws on | Pane |
Is usage-log safe to install?
usage-log scores 64/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; writes files or config; reads environment variables. It passed 5 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes files or config | Review |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
$.process.run | runs processes |
$.session.cwd | |
$.session.id | |
$.session.model | |
$.session.surfaces | |
$.session.turns | |
$.session.usage | |
$.session.version | |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install usage-log?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/tanuu5/usage-log claude plugin validate ./usage-log/plugins/usage-log
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add tanuu5/usage-log && claude plugin install usage-log@usage-log
Or ask Claude to set it up
Paste this into Claude Code and it installs usage-log for you:
Install the "usage-log" Claude Code mod from https://github.com/tanuu5/usage-log/tree/main/plugins/usage-log. Run claude plugin validate on it first and show me what it can access before you enable it.