What is UsageBreakdown?
UsageBreakdown is a Claude Code mod by Heuwzen that shows what uses up your Claude limits: tokens by model, by main chat versus agents, and by project, across every chat on this Mac. It is listed under Cost & usage and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | Heuwzen |
| Repository | Heuwzen/claude-runway |
| Popularity | 2 GitHub stars |
| Category | Cost & usage |
| Security | Low risk (96/100) |
| Rank | #1,178 of 5,272 Claude Code mods; #220 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-07 |
| Hooks | 5 events |
| Sees | only the events it hooks |
| Draws on | Pane |
Is UsageBreakdown safe to install?
UsageBreakdown scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 7 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 no processes | Pass |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Validator reported problems | Note |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.command.register | |
$.session.cwd | |
$.session.id | |
$.session.repo | |
$.state.get | |
$.state.set | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.keys | keeps its own state |
$.store.set | keeps its own state |
$.ui.open | draws interface |
$.ui.panes | draws interface |
$.ui.resolve | draws interface |
How do I install UsageBreakdown?
- 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/Heuwzen/claude-runway claude plugin validate ./claude-runway/usage-breakdown
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/Heuwzen/claude-runway && claude --plugin-dir ./claude-runway/usage-breakdown
Or ask Claude to set it up
Paste this into Claude Code and it installs UsageBreakdown for you:
Install the "UsageBreakdown" Claude Code mod from https://github.com/Heuwzen/claude-runway/tree/main/usage-breakdown. Run claude plugin validate on it first and show me what it can access before you enable it.
More from Heuwzen/claude-runway
This repository has 4 Claude Code mods on MCPMods.
- CommitNudge: A quiet reminder in the status line and a toast when uncommitted work piles up in the chat's project (Low risk)
- MacLoad: Shows your Mac's CPU and memory under the prompt, names the app behind a slowdown, and warns when the Mac is overloaded (Low risk)
- Runway: Your Claude Code 5-hour and weekly limits and the chat’s context window as live meters above the prompt (Low risk)