What is usage-mod?
usage-mod is a Claude Code mod by jasmo13 that a live usage band above the prompt for this Claude Code session: cost, tokens, cache, context, rate limits, turns, tools. Desktop and terminal. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | jasmo13 |
| Repository | jasmo13/usage-mod |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Review before installing (76/100) |
| Rank | #3,525 of 5,272 Claude Code mods; #653 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-07 |
| Hooks | 17 events |
| Sees | classic hooks, compaction, every tool call |
| Draws on | PromptHint, AbovePrompt |
Is usage-mod safe to install?
usage-mod scores 76/100 on the MCPMods security check: Review before installing. Things to review: sends data over the network; reads environment variables. 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 |
|---|---|
| Sends data over the network | Review |
| Starts no processes | Pass |
| Writes no files or config | Pass |
| 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.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.http.fetch | network requests |
$.process.spawn | |
$.session.authorize | reads the transcript |
$.session.cwd | |
$.session.id | |
$.session.model | |
$.session.root | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.copy | draws interface |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install usage-mod?
- 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/jasmo13/usage-mod claude plugin validate ./usage-mod/plugins/usage-mod
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add jasmo13/usage-mod && claude plugin install usage-mod@usage-mod
Or ask Claude to set it up
Paste this into Claude Code and it installs usage-mod for you:
Install the "usage-mod" Claude Code mod from https://github.com/jasmo13/usage-mod/tree/main/plugins/usage-mod. Run claude plugin validate on it first and show me what it can access before you enable it.