What is ralph-marketplace?

A marketplace listing for the Ralph Skills plugin, a package of add-ons for Ralph’s autonomous coding-agent system. The listing describes the plugin, its owner, version, keywords, and included skills.

Registering the Ralph Skills plugin in a personal marketplace and describing its PRD-generation and requirements-conversion tools. It also provides metadata used for plugin discovery.

It makes the plugin discoverable and tells a marketplace how to identify and present it. The description also clarifies that it focuses on planning and preparing requirements for automated development.

ralph-marketplace — Plugin by snarktank

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.

Claude Code

/plugin marketplace add snarktank/ralph

agentmods

npx agentmods add plugins/snarktank/ralph/marketplace

Clone the repo

git clone --depth 1 https://github.com/snarktank/ralph

Made for: Claude Code.

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. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

ralph-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 2d 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": "ralph-marketplace",
  "owner": {
    "name": "snarktank"
  },
  "metadata": {
    "description": "Skills for the Ralph autonomous agent system - Generate PRDs and convert them to prd.json format for autonomous execution",
    "version": "1.0.0"
  },
  "plugins": [
    {
      "name": "ralph-skills",
      "source": "./",
      "description": "PRD generation and conversion skills for the Ralph autonomous agent loop",
      "version": "1.0.0",
      "keywords": ["ralph", "prd", "automation", "agent", "planning"],
      "category": "productivity",
      "skills": "./skills/"
    }
  ]
}

Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

plugin.json 344 B

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.

2d ago First seen · 22 lines scan A 744bc0fb26df

Subscribe to this mod's changes

ralph-marketplace is a plugin published in the GitHub repository snarktank/ralph (21,663 stars, last pushed 7mo 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 2026-08-30.

Planning

ralph-marketplace

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What ships with it

What this file has done since we first saw it

Other plugins, from other repositories

humanizer

nextjs

nextjs

claude-plugins-official

knowledge-work-plugins

ecc