What is cache-countdown?
cache-countdown is a Claude Code mod by jmac122 that prompt-cache meter above the input box: hit %, read/wrote/new tokens, a TTL countdown and advice; cache-expiry toasts and context-window alerts. /cache opens a detail pane; /cache setup. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | jmac122 |
| Repository | jmac122/cache-countdown |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Review before installing (76/100) |
| Rank | #3,589 of 5,272 Claude Code mods; #663 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-13 |
| Hooks | 6 events |
| Sees | only the events it hooks |
| Draws on | AbovePrompt, Pane |
Is cache-countdown safe to install?
cache-countdown scores 76/100 on the MCPMods security check: Review before installing. Things to review: writes files or config; reads environment variables. It passed 6 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 |
| 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.after | |
$.clock.now | |
$.command.register | |
$.config.set | changes config |
$.env.get | reads env vars |
$.session.usage | |
$.settings.read | reads settings |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.close | draws interface |
$.ui.focus | draws interface |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install cache-countdown?
- 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/jmac122/cache-countdown claude plugin validate ./cache-countdown/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add jmac122/cache-countdown && claude plugin install cache-countdown@cache-countdown
Or ask Claude to set it up
Paste this into Claude Code and it installs cache-countdown for you:
Install the "cache-countdown" Claude Code mod from https://github.com/jmac122/cache-countdown. Run claude plugin validate on it first and show me what it can access before you enable it.