Claude Code mod
lean-and-mean
Concise prose and YAGNI code, installed into the project AGENTS.md. /endsession writes Rules and Next, commits, pushes, then stops.
Install
/plugin marketplace add spinlockdevelopment/lean-and-mean
/plugin install lean-and-mean@lean-and-meanMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: runs processes, drives Claude, writes the prompt box, reads files, reads mod state, persists state, draws
- Sees
- every prompt, mcp__ccd_turn__update_plan calls, mcp__ccd_turn__wrap_up calls
- Draws in
AbovePromptPane- Hooks
session.startsession.attachsession.measuresession.endcommand.runprompt.submitturn.startturn.completetool.callui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- spinlockdevelopment/lean-and-mean
- Folder
.- Marketplace
lean-and-mean- Author
- Spinlock Development
- License
- MIT
- Last updated
- 1 November 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is lean-and-mean?
Concise prose and YAGNI code, installed into the project AGENTS.md. /endsession writes Rules and Next, commits, pushes, then stops. It is a mod for Claude Code, from spinlockdevelopment/lean-and-mean on GitHub.
What can the lean-and-mean mod access?
Its widest reach is "writes or runs" (runs processes, drives Claude, writes the prompt box, reads files, reads mod state, persists state, draws). It sees every prompt, mcp__ccd_turn__update_plan calls, mcp__ccd_turn__wrap_up calls. It draws in AbovePrompt, Pane. Like any mod, it runs with your permissions.
How do I install lean-and-mean?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add spinlockdevelopment/lean-and-mean and then /plugin install lean-and-mean@lean-and-mean.
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