Claude Code mod

mermaid-inline

[Experimental] Every ```mermaid block Claude writes drawn as plain box art in place in the transcript — flowchart, sequence, class, state and xychart; CJK labels aligned (Claude Mod fork of claude-mermaid; needs Claude Code 2.1.287+)

2 starsGuard & safety mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add musingfox/cc-plugins
/plugin install mermaid-inline@nick-personal-marketplace

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 env vars, persists state, draws
Draws in
AssistantMessage
Hooks
session.startui.rendercommand.run

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

Folder
mermaid-inline
Marketplace
nick-personal-marketplace
Author
Nick Huang
License
MIT
Last updated
30 October 2026

FAQ

What is mermaid-inline?

[Experimental] Every ```mermaid block Claude writes drawn as plain box art in place in the transcript — flowchart, sequence, class, state and xychart; CJK labels aligned (Claude Mod fork of claude-mermaid; needs Claude Code 2.1.287+) It is a mod for Claude Code, from musingfox/cc-plugins on GitHub.

What can the mermaid-inline mod access?

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

How do I install mermaid-inline?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add musingfox/cc-plugins and then /plugin install mermaid-inline@nick-personal-marketplace.

Is mermaid-inline popular?

musingfox/cc-plugins has 2 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 30 October 2026.

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