What is warn-usage?
warn-usage is a Claude Code mod by ricardo-martincoski that warns when context window usage or 5-hour/7-day session usage limits reach a threshold. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | ricardo-martincoski |
| Repository | ricardo-martincoski/claude-lab |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Low risk (100/100) |
| Rank | #4,408 of 5,272 Claude Code mods; #848 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-04 |
| Hooks | 1 events |
| Sees | only the events it hooks |
| Draws on | nothing |
Is warn-usage safe to install?
warn-usage scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 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 |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.ui.toast | draws interface |
How do I install warn-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/ricardo-martincoski/claude-lab claude plugin validate ./claude-lab/plugins/warn-usage
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add ricardo-martincoski/claude-lab && claude plugin install warn-usage@claude-lab
Or ask Claude to set it up
Paste this into Claude Code and it installs warn-usage for you:
Install the "warn-usage" Claude Code mod from https://github.com/ricardo-martincoski/claude-lab/tree/main/plugins/warn-usage. Run claude plugin validate on it first and show me what it can access before you enable it.
More from ricardo-martincoski/claude-lab
This repository has 2 Claude Code mods on MCPMods.
- show-usage: Shows context window usage and 5-hour/7-day session usage limits in the status line (Low risk)