What is idle-compact?
idle-compact is a Claude Code mod by davidar that compacts an idle interactive session shortly before its prompt cache expires, so coming back later doesn't re-read the whole context uncached. It is listed under Cost & usage and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | davidar |
| Repository | davidar/claude-idle-compact |
| Popularity | 1 GitHub stars |
| Category | Cost & usage |
| Security | Low risk (100/100) |
| Rank | #1,739 of 5,272 Claude Code mods; #291 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-09 |
| Hooks | 4 events |
| Sees | only the events it hooks |
| Draws on | nothing |
Is idle-compact safe to install?
idle-compact scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 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 |
| Doesn't read environment variables | Pass |
| 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 | |
$.session.compact | drives Claude |
$.session.id | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.ui.log | draws interface |
$.ui.status | draws interface |
How do I install idle-compact?
- 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/davidar/claude-idle-compact claude plugin validate ./claude-idle-compact/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add davidar/claude-idle-compact && claude plugin install idle-compact@idle-compact
Or ask Claude to set it up
Paste this into Claude Code and it installs idle-compact for you:
Install the "idle-compact" Claude Code mod from https://github.com/davidar/claude-idle-compact. Run claude plugin validate on it first and show me what it can access before you enable it.