What is lean-and-mean?
lean-and-mean is a Claude Code mod by spinlockdevelopment that concise prose and YAGNI code, installed into the project AGENTS.md. /endsession writes Rules and Next, commits, pushes, then stops. It is listed under Agents & automation and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | spinlockdevelopment |
| Repository | spinlockdevelopment/lean-and-mean |
| Popularity | no public popularity data yet |
| Category | Agents & automation |
| Security | Low risk (80/100) |
| Rank | #4,692 of 5,272 Claude Code mods; #357 in Agents & automation |
| License | MIT |
| Last commit | 2026-10-15 |
| Hooks | 7 events |
| Sees | every prompt |
| Draws on | AbovePrompt |
Is lean-and-mean safe to install?
lean-and-mean scores 80/100 on the MCPMods security check: Low risk. Things to review: watches every prompt or event. It passed 5 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 |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Validator reported problems | Note |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.command.list | |
$.command.run | drives Claude |
$.model.complete | drives Claude |
$.prompt.fill | writes the prompt box |
$.state.get | |
$.state.set | |
$.ui.ask | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install lean-and-mean?
- 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/spinlockdevelopment/lean-and-mean claude plugin validate ./lean-and-mean/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add spinlockdevelopment/lean-and-mean && claude plugin install lean-and-mean@lean-and-mean
Or ask Claude to set it up
Paste this into Claude Code and it installs lean-and-mean for you:
Install the "lean-and-mean" Claude Code mod from https://github.com/spinlockdevelopment/lean-and-mean. Run claude plugin validate on it first and show me what it can access before you enable it.