What is usage?
usage is a Claude Code mod by jaaaackieLai that model, folder, git branch/worktree, context and rate-limit band above the prompt, with threshold toasts, /limits and a /ctx pane. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | jaaaackieLai |
| Repository | jaaaackieLai/claude-mods |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Review before installing (76/100) |
| Rank | #3,501 of 5,272 Claude Code mods; #646 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-07 |
| Hooks | 5 events |
| Sees | only the events it hooks |
| Draws on | AbovePrompt, Pane |
Is usage safe to install?
usage scores 76/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; writes files or config. It passed 6 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 |
| Doesn't read environment variables | Pass |
| 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 | |
$.command.register | |
$.config.list | |
$.fs.write | writes files |
$.process.run | runs processes |
$.session.cwd | |
$.session.model | |
$.session.root | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.ui.close | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install usage?
- 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/jaaaackieLai/claude-mods claude plugin validate ./claude-mods/plugins/usage
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add jaaaackieLai/claude-mods && claude plugin install usage@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs usage for you:
Install the "usage" Claude Code mod from https://github.com/jaaaackieLai/claude-mods/tree/main/plugins/usage. Run claude plugin validate on it first and show me what it can access before you enable it.
More from jaaaackieLai/claude-mods
This repository has 5 Claude Code mods on MCPMods.
- agent-monitor: 子代理監看：prompt 上方顯示子代理摘要列，/agent-monitor 開關面板，列出模型、context、token、估計費用和時間。 (Low risk)
- gold-fish: 金魚列：自動記住工作堆疊，輸入列上方顯示主線和支線，收支線後提醒回主線 (Review before installing)
- todo-calendar: TODO 週曆面板：在面板顯示一週任務，由 Claude 用工具新增與修改任務 (Review before installing)
- typo-picker: Flag typos in the prompt box (rules file + Opus 5.5 check) and pick a fix from the band above the prompt, /typo to add r (Review before installing)