What is cache-maxxer?
cache-maxxer is a Claude Code mod by vayaan-labs that shows the prompt cache's countdown and hit rate above the input box, explains every cache break and cache expiry, and can keep the cache warm to cut Claude Code cost. It is listed under Cost & usage and has 8 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | vayaan-labs |
| Repository | vayaan-labs/cache-maxxer |
| Popularity | 8 GitHub stars |
| Category | Cost & usage |
| Security | Review before installing (60/100) |
| Rank | #571 of 5,272 Claude Code mods; #101 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-09 |
| Hooks | 10 events |
| Sees | classic hooks, compaction |
| Draws on | AbovePrompt |
Is cache-maxxer safe to install?
cache-maxxer scores 60/100 on the MCPMods security check: Review before installing. Things to review: sends data over the network; starts processes outside the sandbox; reads environment variables. 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 |
|---|---|
| Sends data over the network | Review |
| Starts processes outside the sandbox | Review |
| Writes no files or config | Pass |
| 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 |
|---|---|
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.list | reads files |
$.http.fetch | network requests |
$.model.fork | drives Claude |
$.process.run | runs processes |
$.session.compact | drives Claude |
$.session.id | |
$.session.model | |
$.session.surfaces | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install cache-maxxer?
- 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/vayaan-labs/cache-maxxer claude plugin validate ./cache-maxxer/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/vayaan-labs/cache-maxxer && claude --plugin-dir ./cache-maxxer/.
Or ask Claude to set it up
Paste this into Claude Code and it installs cache-maxxer for you:
Install the "cache-maxxer" Claude Code mod from https://github.com/vayaan-labs/cache-maxxer. Run claude plugin validate on it first and show me what it can access before you enable it.