What is auto-effort?
auto-effort is a Claude Code mod by arthur-fontaine that picks Claude's effort level for each prompt with a System One decision model. It is listed under Interface and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | arthur-fontaine |
| Repository | arthur-fontaine/cc-mod-auto-effort |
| Popularity | 2 GitHub stars |
| Category | Interface |
| Security | High risk (48/100) |
| Rank | #1,110 of 5,272 Claude Code mods; #425 in Interface |
| Last commit | 2026-10-05 |
| Hooks | 7 events |
| Sees | every prompt |
| Draws on | SessionMode |
Is auto-effort safe to install?
auto-effort scores 48/100 on the MCPMods security check: High risk. Things to review: sends data over the network; starts processes outside the sandbox; reads environment variables; watches every prompt or event. It passed 3 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 |
| Watches every prompt or event | Review |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.sleep | |
$.command.register | |
$.env.get | reads env vars |
$.http.fetch | network requests |
$.process.run | runs processes |
$.process.spawn | |
$.session.messages | reads the transcript |
$.session.model | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.ask | draws interface |
$.ui.log | draws interface |
$.ui.status | draws interface |
How do I install auto-effort?
- 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/arthur-fontaine/cc-mod-auto-effort claude plugin validate ./cc-mod-auto-effort/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add arthur-fontaine/cc-mod-auto-effort && claude plugin install auto-effort@auto-effort-dev
Or ask Claude to set it up
Paste this into Claude Code and it installs auto-effort for you:
Install the "auto-effort" Claude Code mod from https://github.com/arthur-fontaine/cc-mod-auto-effort. Run claude plugin validate on it first and show me what it can access before you enable it.