viz

viz is a plugin for Claude Code from musingfox/cc-plugins. Its manifest loads nothing; the 2 skills it bundles cost 235 tokens per session together, scanned A, original, MIT.

A plugin that provides two kinds of visual output: compact code-structure visuals in chat and formatted HTML for Markdown or Mermaid content in a browser. Mermaid is a text format for diagrams such as flowcharts and sequence diagrams.

In plain words
What is it for?
Use it for inline call trees, component trees, file trees, pseudocode, and diffs, or for browser-rendered Markdown and Mermaid diagrams.
Why use it?
It gives you a way to inspect code structure or present longer documents and diagrams visually instead of relying only on prose or terminal text.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it for inline call trees, component trees, file trees, pseudocode, and diffs, or for browser-rendered Markdown and Mermaid diagrams.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add musingfox/cc-plugins
/plugin install viz
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/musingfox/cc-plugins

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for viz

README.md
[![agentmods](https://agentmods.dev/badge/plugins/musingfox/cc-plugins/viz/github.svg)](https://agentmods.dev/plugins/musingfox/cc-plugins/viz)
Your own site
<a href="https://agentmods.dev/plugins/musingfox/cc-plugins/viz"><img src="https://agentmods.dev/badge/plugins/musingfox/cc-plugins/viz/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for viz

Your own site · 80×15
<a href="https://agentmods.dev/plugins/musingfox/cc-plugins/viz"><img src="https://agentmods.dev/badge/plugins/musingfox/cc-plugins/viz.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills cost 235 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

viz scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

viz/.claude-plugin/plugin.json · 17 lines

What it actually says

{
  "name": "viz",
  "version": "1.1.9",
  "description": "Visual output for chat and browser — inline code-shape visuals (viz-inline) plus markdown/Mermaid HTML rendering (viz-render)",
  "author": {
    "name": "Nick Huang",
    "email": "[email protected]"
  },
  "keywords": [
    "markdown", "mermaid", "visualization", "html", "diagram",
    "flowchart", "sequence-diagram", "class-diagram", "state-diagram", "er-diagram"
  ],
  "homepage": "https://github.com/musingfox/cc-plugins/tree/main/viz",
  "license": "MIT",
  "skills": "./skills/"
}
Contents

What it installs

The manifest is a name and a version. 2 skills travel with it, and installing the plugin installs all of them — 235 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago Changed 7ecf870dc30a
  2. 14d ago Changed 977befc6601f
  3. 18d ago Changed 962b39a2830e
  4. 19d ago Changed 70aaf54f156d
  5. 1mo ago Changed a6729ecb1f5a
  6. 1mo ago Changed 7a2fb9c7fa32
  7. 1mo ago First seen · 17 lines scan A b06ebb3e54b7

Subscribe to this mod's changes

viz is a plugin published in the GitHub repository musingfox/cc-plugins (2 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.