Claude Code mod

md-preview

Shows the Markdown files Claude edits, rendered like GitHub, in a pane next to the chat. Before and after side by side. /md opens it.

Git & GitHub mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add thorstenalpers/claude-code-mods
/plugin install md-preview@claude-code-mods

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach
L2Writes or runs: runs processes, writes files, reads files, reads env vars, reads mod state, draws
Sees
every tool call
Draws in
Pane
Hooks
session.startturn.startturn.completetool.callcommand.runui.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.
Claude Code docs

Details

Repository
thorstenalpers/claude-code-mods
Folder
mods/md-preview
Marketplace
claude-code-mods
Author
Hamza Zafar
Type
Git & GitHub mods
License
MIT
Last updated
12 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is md-preview?

Shows the Markdown files Claude edits, rendered like GitHub, in a pane next to the chat. Before and after side by side. /md opens it. It is a mod for Claude Code, from thorstenalpers/claude-code-mods on GitHub.

What can the md-preview mod access?

Its widest reach is "writes or runs" (runs processes, writes files, reads files, reads env vars, reads mod state, draws). It sees every tool call. It draws in Pane. Like any mod, it runs with your permissions.

How do I install md-preview?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add thorstenalpers/claude-code-mods and then /plugin install md-preview@claude-code-mods.

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