What is flashcards?
flashcards is a Claude Code mod by musingfox that [Experimental] Flashcards from your repo's specs, ADRs and vault task cards — /cards build generates a review deck with a background Haiku, /cards opens a token-free Leitner review pane. It is listed under Security and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | musingfox |
| Repository | musingfox/cc-plugins |
| Popularity | 2 GitHub stars |
| Category | Security |
| Security | Low risk (84/100) |
| Rank | #1,359 of 5,272 Claude Code mods; #147 in Security |
| License | MIT |
| Last commit | 2026-10-16 |
| Hooks | 4 events |
| Sees | only the events it hooks |
| Draws on | Pane |
Is flashcards safe to install?
flashcards scores 84/100 on the MCPMods security check: Low risk. Things to review: starts processes outside the sandbox. It passed 6 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 processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.agent.list | |
$.agent.spawn | drives Claude |
$.clock.now | |
$.command.register | |
$.fs.exists | reads files |
$.fs.list | reads files |
$.fs.read | reads files |
$.process.run | runs processes |
$.session.cwd | |
$.session.repo | |
$.session.root | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.close | draws interface |
$.ui.invalidate | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install flashcards?
- 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/musingfox/cc-plugins claude plugin validate ./cc-plugins/flashcards
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add musingfox/cc-plugins && claude plugin install flashcards@nick-personal-marketplace
Or ask Claude to set it up
Paste this into Claude Code and it installs flashcards for you:
Install the "flashcards" Claude Code mod from https://github.com/musingfox/cc-plugins/tree/main/flashcards. Run claude plugin validate on it first and show me what it can access before you enable it.
More from musingfox/cc-plugins
This repository has 7 Claude Code mods on MCPMods.
- calendar: [Experimental] Upcoming Google Calendar events in-session — /cal toggles a band above the prompt with the next 7 days, / (Review before installing)
- cf: [Experimental] Contract-driven development pipeline with human-in-the-loop decision gating — agents defined by Context + (Low risk)
- games: [Experimental] Mini games to play while Claude works — /2048, /mines (Minesweeper), /dino (Chrome's offline runner) and (Review before installing)
- mermaid-inline: [Experimental] Every ```mermaid block Claude writes drawn as plain box art in place in the transcript — flowchart, seque (Review before installing)
- obw: Obsidian Workspace — project-scoped vault productivity (capture / notes / PM). Skills own folder layout and templates; / (Review before installing)
- omp-quota: [Experimental] Every omp provider's remaining quota in-session — a /quota band above the prompt, /quota refresh, and a t (Review before installing)