What is cache-caffeine?
cache-caffeine is a Claude Code mod by lperezmo that keeps the prompt cache warm while you step away: a short poke before the cache expires, so the next turn reads the cache instead of writing it again. A row above the prompt turns it on and. It is listed under Games and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | lperezmo |
| Repository | lperezmo/cache-caffeine |
| Popularity | no public popularity data yet |
| Category | Games |
| Security | Review before installing (72/100) |
| Rank | #3,829 of 5,272 Claude Code mods; #74 in Games |
| License | MIT |
| Last commit | 2026-10-16 |
| Hooks | 11 events |
| Sees | classic hooks, compaction, every prompt |
| Draws on | AbovePrompt |
Is cache-caffeine safe to install?
cache-caffeine scores 72/100 on the MCPMods security check: Review before installing. Things to review: reads environment variables; watches every prompt or event. 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 no files or config | Pass |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| 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 |
|---|---|
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.prompt.submit | drives Claude |
$.session.id | |
$.session.usage | |
$.settings.read | reads settings |
$.state.get | |
$.state.set | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.ask | draws interface |
$.ui.focus | draws interface |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install cache-caffeine?
- 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/lperezmo/cache-caffeine claude plugin validate ./cache-caffeine/plugins/cache-caffeine
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add lperezmo/cache-caffeine && claude plugin install cache-caffeine@cache-caffeine
Or ask Claude to set it up
Paste this into Claude Code and it installs cache-caffeine for you:
Install the "cache-caffeine" Claude Code mod from https://github.com/lperezmo/cache-caffeine/tree/main/plugins/cache-caffeine. Run claude plugin validate on it first and show me what it can access before you enable it.