Claude Code mod
sidecard
Tiny disposable learning cards under Claude Code's spinner while it works. Categories are markdown files.
Install
/plugin marketplace add phunterlau/sidecard
/plugin install sidecard@sidecardMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: drives Claude, reads files, reads env vars, persists state, draws
- Sees
- every prompt, every tool call, classic hooks
- Draws in
SpinnerAbovePromptPane- Hooks
session.startcommand.runturn.startprompt.submittool.callturn.completeclassic.PermissionRequestclassic.Notificationui.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
- phunterlau/sidecard
- Folder
.- Marketplace
sidecard- Author
- phunterlau
- License
- MIT
- Last updated
- 5 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is sidecard?
Tiny disposable learning cards under Claude Code's spinner while it works. Categories are markdown files. It is a mod for Claude Code, from phunterlau/sidecard on GitHub.
What can the sidecard mod access?
Its widest reach is "writes or runs" (drives Claude, reads files, reads env vars, persists state, draws). It sees every prompt, every tool call, classic hooks. It draws in Spinner, AbovePrompt, Pane. Like any mod, it runs with your permissions.
How do I install sidecard?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add phunterlau/sidecard and then /plugin install sidecard@sidecard.
Is sidecard popular?
phunterlau/sidecard has 1 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 5 October 2026.
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