What is usageline?
usageline is a Claude Code mod by Sma1lboy that a status line under the prompt: context, cache hit rate, cache TTL countdown, today's spend for this project, and why a turn missed the cache. /usage prints the project ledger. It is listed under Cost & usage and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | Sma1lboy |
| Repository | Sma1lboy/claude-mods |
| Popularity | 2 GitHub stars |
| Category | Cost & usage |
| Security | Review before installing (72/100) |
| Rank | #1,402 of 5,272 Claude Code mods; #255 in Cost & usage |
| Last commit | 2026-10-12 |
| Hooks | 8 events |
| Sees | compaction, every tool call |
| Draws on | PromptHint |
Is usageline safe to install?
usageline scores 72/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; 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 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 |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.read | reads files |
$.process.run | runs processes |
$.session.model | |
$.session.repo | |
$.session.root | |
$.session.usage | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
How do I install usageline?
- 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/Sma1lboy/claude-mods claude plugin validate ./claude-mods/usageline
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add Sma1lboy/claude-mods && claude plugin install usageline@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs usageline for you:
Install the "usageline" Claude Code mod from https://github.com/Sma1lboy/claude-mods/tree/main/usageline. Run claude plugin validate on it first and show me what it can access before you enable it.