What is lesson-cards?
lesson-cards is a Claude Code mod by yonatangross that displays lesson hint cards when tool calls match known patterns. Additive surface during pilot; the classic --strict guard keeps its 12 block-severity denies. It is listed under Security and has 296 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | yonatangross |
| Repository | yonatangross/orchestkit |
| Popularity | 296 GitHub stars |
| Category | Security |
| Security | Low risk (88/100) |
| Rank | #58 of 5,272 Claude Code mods; #26 in Security |
| License | MIT |
| Last commit | 2026-10-17 |
| Stars this week | +4 |
| Hooks | 4 events |
| Sees | every tool call |
| Draws on | ToolUse |
Is lesson-cards safe to install?
lesson-cards scores 88/100 on the MCPMods security check: Low risk. Things to review: reads environment variables. It passed 7 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 |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| 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 |
|---|---|
$.command.register | |
$.env.get | reads env vars |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.ui.ask | draws interface |
$.ui.invalidate | draws interface |
$.ui.notice | draws interface |
$.ui.resolve | draws interface |
How do I install lesson-cards?
- 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/yonatangross/orchestkit claude plugin validate ./orchestkit/mods/lesson-cards
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/yonatangross/orchestkit && claude --plugin-dir ./orchestkit/mods/lesson-cards
Or ask Claude to set it up
Paste this into Claude Code and it installs lesson-cards for you:
Install the "lesson-cards" Claude Code mod from https://github.com/yonatangross/orchestkit/tree/main/mods/lesson-cards. Run claude plugin validate on it first and show me what it can access before you enable it.
More from yonatangross/orchestkit
This repository has 4 Claude Code mods on MCPMods.
- memory-lens: Recalls the few memories related to each prompt: one line for the human, one context entry for the model. Local files on (Review before installing)
- promote-lights: Shows CI status lights above the prompt while a promote PR (base main) is open. One REST page per minute, PR-open only. (Review before installing)
- secrets-veil: Masks secret values in tool results before the model reads them: named vendor variables, value-shape patterns, and high- (Low risk)