It collects guidance for common development tasks in one installable plugin.

cc-plugins marketplace — Plugin for Claude Code by mthalman/cc-plugins

cc-plugins marketplace

cc-plugins marketplace is a plugin for Claude Code from mthalman/cc-plugins. Its token cost is not measured, scanned A, original, MIT.

A Claude Code plugin marketplace containing a library of coding practices for test-driven development, debugging, teamwork, and other techniques. Test-driven development means writing tests before or alongside the code they check.

In plain words

What is it for?: Use it when writing tests, investigating bugs, collaborating on code, or applying the listed development techniques.
Why use it?: It collects guidance for common development tasks in one installable plugin.

Written for Claude Code: a Claude Code plugin manifest. Also seen: mentions Claude Code.

Good fit Use it when writing tests, investigating bugs, collaborating on code, or applying the listed development techniques.

Compare 6 plugins from other repositories ↓

Install in Claude Code

/plugin marketplace add mthalman/cc-plugins

/plugin install cc-plugins marketplace

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/mthalman/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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/mthalman/cc-plugins/marketplace/github.svg)](https://agentmods.dev/plugins/mthalman/cc-plugins/marketplace)

Your own site

<a href="https://agentmods.dev/plugins/mthalman/cc-plugins/marketplace"><img src="https://agentmods.dev/badge/plugins/mthalman/cc-plugins/marketplace/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.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/mthalman/cc-plugins/marketplace"><img src="https://agentmods.dev/badge/plugins/mthalman/cc-plugins/marketplace.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 Not applicable: nothing here is loaded into a session.

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

cc-plugins marketplace 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 2mo 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.

.claude-plugin/marketplace.json · 22 lines

What it actually says

{
  "name": "cc-plugins",
  "owner": {
    "name": "Matt Thalman",
    "email": "[email protected]"
  },
  "metadata": {
    "description": "Curated Claude Code plugins",
    "version": "1.0.0"
  },
  "plugins": [
    {
      "name": "superpowers",
      "source": {
        "source": "url",
        "url": "https://github.com/mthalman/superpowers.git"
      },
      "description": "Core skills library: TDD, debugging, collaboration patterns, and proven techniques"
    }
  ]
}

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.

2mo ago First seen · 22 lines scan A b4db8ee0a47b

Subscribe to this mod's changes

cc-plugins marketplace is a plugin published in the GitHub repository mthalman/cc-plugins (2 stars, last pushed 10mo ago), 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 2026-08-31.

cc-plugins marketplace next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
cc-plugins marketplacemthalman/cc-plugins	Plugin	2	10mo ago	MIT	A	—	Claude Code
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