What is usage-guard?
usage-guard is a Claude Code mod by aliaksei-loi that winds sessions and subagents down before the 5-hour or 7-day subscription limit: one wind-down note per band, a handoff file, spawn and loop denies near the limit, optional resume after. It is listed under Security and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | aliaksei-loi |
| Repository | aliaksei-loi/usage-guard |
| Popularity | no public popularity data yet |
| Category | Security |
| Security | Review before installing (72/100) |
| Rank | #2,561 of 5,272 Claude Code mods; #303 in Security |
| License | MIT |
| Last commit | 2026-10-09 |
| Hooks | 8 events |
| Sees | classic hooks, every tool call, subagent spawns |
| Draws on | AbovePrompt |
Is usage-guard safe to install?
usage-guard scores 72/100 on the MCPMods security check: Review before installing. Things to review: writes files or config; 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 no processes | Pass |
| Writes files or config | Review |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.agent.list | |
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.write | writes files |
$.prompt.submit | drives Claude |
$.session.append | |
$.session.id | |
$.session.messages | reads the transcript |
$.session.root | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install usage-guard?
- 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/aliaksei-loi/usage-guard claude plugin validate ./usage-guard/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add aliaksei-loi/usage-guard && claude plugin install usage-guard@usage-guard
Or ask Claude to set it up
Paste this into Claude Code and it installs usage-guard for you:
Install the "usage-guard" Claude Code mod from https://github.com/aliaksei-loi/usage-guard. Run claude plugin validate on it first and show me what it can access before you enable it.