What is cache-keeper?
cache-keeper is a Claude Code mod by oioi555 that context, quota and prompt-cache meters above the prompt; while the session is idle on a 1-hour cache, keeps it alive and compacts before it lapses, holding off system sleep meanwhile. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | oioi555 |
| Repository | oioi555/claude-code-mods |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Review before installing (60/100) |
| Rank | #4,194 of 5,272 Claude Code mods; #802 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-14 |
| Hooks | 10 events |
| Sees | compaction, every prompt |
| Draws on | AbovePrompt, Pane |
Is cache-keeper safe to install?
cache-keeper scores 60/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; reads environment variables; watches every prompt or event. It passed 4 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 processes outside the sandbox | Review |
| 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 |
$.model.fork | drives Claude |
$.process.run | runs processes |
$.process.spawn | |
$.session.compact | drives Claude |
$.session.model | |
$.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.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
How do I install cache-keeper?
- 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/oioi555/claude-code-mods claude plugin validate ./claude-code-mods/plugins/cache-keeper
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add oioi555/claude-code-mods && claude plugin install cache-keeper@oioi555
Or ask Claude to set it up
Paste this into Claude Code and it installs cache-keeper for you:
Install the "cache-keeper" Claude Code mod from https://github.com/oioi555/claude-code-mods/tree/main/plugins/cache-keeper. Run claude plugin validate on it first and show me what it can access before you enable it.