What is sub-agent-compact?
sub-agent-compact is a Claude Code mod by rezzminator that smart auto-compact for Claude Code: a separate compaction point for every sub-agent, and self-compaction at a milestone the model chooses. It is listed under Context & memory and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | rezzminator |
| Repository | rezzminator/sub-agent-compact |
| Popularity | no public popularity data yet |
| Category | Context & memory |
| Security | High risk (52/100) |
| Rank | #4,404 of 5,272 Claude Code mods; #416 in Context & memory |
| License | MIT |
| Last commit | 2026-10-17 |
| Hooks | 11 events |
| Sees | classic hooks, compaction, every prompt, every tool call, subagent spawns |
| Draws on | nothing |
Is sub-agent-compact safe to install?
sub-agent-compact scores 52/100 on the MCPMods security check: High risk. Things to review: starts processes outside the sandbox; writes files or config; 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 files or config | Review |
| 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 |
|---|---|
$.agent.list | |
$.clock.after | |
$.clock.now | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.fs.write | writes files |
$.process.run | runs processes |
$.session.compact | drives Claude |
$.session.cwd | |
$.session.id | |
$.session.messages | reads the transcript |
$.session.turns | |
$.session.usage | |
$.settings.read | reads settings |
$.tool.check | |
$.tool.register | drives Claude |
How do I install sub-agent-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/rezzminator/sub-agent-compact claude plugin validate ./sub-agent-compact/plugins/sub-agent-compact
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/rezzminator/sub-agent-compact && claude --plugin-dir ./sub-agent-compact/plugins/sub-agent-compact
Or ask Claude to set it up
Paste this into Claude Code and it installs sub-agent-compact for you:
Install the "sub-agent-compact" Claude Code mod from https://github.com/rezzminator/sub-agent-compact/tree/develop/plugins/sub-agent-compact. Run claude plugin validate on it first and show me what it can access before you enable it.