What is tools-usage?
tools-usage is a Claude Code mod by Fazzani that side pane listing the tools used in the session (built-in, MCP, skill, agent, plugin, hook) with calls and token consumption. It is listed under Cost & usage and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | Fazzani |
| Repository | Fazzani/claude-mods |
| Popularity | 1 GitHub stars |
| Category | Cost & usage |
| Security | Low risk (88/100) |
| Rank | #1,788 of 5,272 Claude Code mods; #306 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-10 |
| Hooks | 6 events |
| Sees | every tool call |
| Draws on | Pane |
Is tools-usage safe to install?
tools-usage scores 88/100 on the MCPMods security check: Low risk. Things to review: reads environment variables. 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 |
| 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.now | |
$.command.register | |
$.env.get | reads env vars |
$.settings.read | reads settings |
$.state.get | |
$.state.set | |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install tools-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/Fazzani/claude-mods claude plugin validate ./claude-mods/plugins/tools-usage
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add Fazzani/claude-mods && claude plugin install tools-usage@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs tools-usage for you:
Install the "tools-usage" Claude Code mod from https://github.com/Fazzani/claude-mods/tree/main/plugins/tools-usage. Run claude plugin validate on it first and show me what it can access before you enable it.
More from Fazzani/claude-mods
This repository has 4 Claude Code mods on MCPMods.
- logstrip-gain: LogStrip global token savings in a status line and statistics report card. (Review before installing)
- rtk-gain: RTK token savings in the status line, and /rtk-gain draws the full rtk gain report as a card. (Review before installing)
- secret-mask: Masks secrets (API keys, tokens, passwords, private keys) in the transcript; hover a masked value to reveal it. (Low risk)