Master every Claude Code slash command
/cards is a flashcards app that drills the whole slash-command catalog with spaced repetition, so the right command comes to mind without scanning a cheat sheet.

What you get
A study app built for the command line
Two ways to quiz
See a command and pick what it does, or read a description and pick the right /command. Mixed mode alternates both directions.
Always current
40+ documented commands, kept in sync as new Claude Code releases ship, so your deck never goes stale.
Full command library
Browse the entire catalog with search, category filters, examples, aliases, and the version each command landed in.
Mastery tracking
Answer a command right five times to lock it in. Streaks and per-category progress keep you honest.
Stats dashboard
Streaks, daily activity, accuracy, and mastery progress at a glance, with a per-category breakdown.
Widgets
Card of the Day on your Home and Lock Screen, plus a Control Center button to jump straight into a round.
See it in action
Quiz yourself, then track what sticks
How it works
A couple of minutes a day is all it takes
Learn the catalog
Browse all 43 documented commands with descriptions, examples, aliases, and the version each one landed in.
Quiz both ways
Match commands to descriptions and back again. Mixed mode alternates so you can't coast on pattern recognition.
Lock it in
Get a command right five times to master it. Streaks, accuracy, and per-category stats keep you moving.
Better together
The companion to Claude Drops
/cards helps you master the commands that exist today. Claude Drops keeps you current as new ones ship, with a push notification on every Claude Code release. Track with Drops, drill with /cards, and you will both know what is new and remember how to use it.
Free reference
All 43 Claude Code slash commands
Browse the full list with descriptions and examples, no download required.
Open the commands list βFAQ
/cards questions, answered
What is /cards for Claude Code?+
Is /cards free?+
Where does the command catalog come from?+
How is /cards different from Claude Drops?+
Which slash commands does it cover?+
Stop looking them up. Start remembering them.
Free to download, with a daily practice limit. Pro unlocks unlimited practice and every mode.





