What is cache-ttl-timer?
cache-ttl-timer is a Claude Code mod by WQGGSEY that a prompt-cache countdown beside the prompt, in the terminal footer and above the prompt on the desktop: how long until your next message has to re-cache the whole conversation, with a. It is listed under Cost & usage and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | WQGGSEY |
| Repository | WQGGSEY/cache-ttl-timer |
| Popularity | 2 GitHub stars |
| Category | Cost & usage |
| Security | Review before installing (76/100) |
| Rank | #1,430 of 5,272 Claude Code mods; #261 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-16 |
| Stars this week | +1 |
| Hooks | 10 events |
| Sees | classic hooks, compaction, every prompt |
| Draws on | SessionMode, AbovePrompt |
Is cache-ttl-timer safe to install?
cache-ttl-timer scores 76/100 on the MCPMods security check: Review before installing. Things to review: reads environment variables; watches every prompt or event. 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 no files or config | Pass |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| 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.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.list | reads files |
$.fs.read | reads files |
$.session.cwd | |
$.session.id | |
$.session.surfaces | |
$.state.get | |
$.state.set | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.invalidate | draws interface |
$.ui.resolve | draws interface |
How do I install cache-ttl-timer?
- 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/WQGGSEY/cache-ttl-timer claude plugin validate ./cache-ttl-timer/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add WQGGSEY/cache-ttl-timer && claude plugin install cache-ttl-timer@cache-ttl-timer
Or ask Claude to set it up
Paste this into Claude Code and it installs cache-ttl-timer for you:
Install the "cache-ttl-timer" Claude Code mod from https://github.com/WQGGSEY/cache-ttl-timer. Run claude plugin validate on it first and show me what it can access before you enable it.