Claude Code mod
lessons-learned
When Claude fixes a mistake, offers to save the lesson to CLAUDE.md.
Install
/plugin marketplace add Plagemes/claude-mods
/plugin install lessons-learned@claude-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: writes files, drives Claude, reads files, reads mod state, draws, other: $.mods.hello, other: $.mods.mode, other: $.mods.notify, other: $.mods.publish, other: $.mods.recent, other: $.mods.registerTab
- Sees
- Bash calls, every tool call
- Draws in
AbovePrompt- Hooks
session.starttool.callturn.completeui.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
- Plagemes/claude-mods
- Folder
mods/lessons-learned- Marketplace
claude-mods- Author
- Plagemes
- License
- MIT
- Last updated
- 15 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is lessons-learned?
When Claude fixes a mistake, offers to save the lesson to CLAUDE.md. It is a mod for Claude Code, from Plagemes/claude-mods on GitHub.
What can the lessons-learned mod access?
Its widest reach is "writes or runs" (writes files, drives Claude, reads files, reads mod state, draws, other: $.mods.hello, other: $.mods.mode, other: $.mods.notify, other: $.mods.publish, other: $.mods.recent, other: $.mods.registerTab). It sees Bash calls, every tool call. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install lessons-learned?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add Plagemes/claude-mods and then /plugin install lessons-learned@claude-mods.
Is lessons-learned popular?
Plagemes/claude-mods has 3 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 15 October 2026.
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