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.
/plugin marketplace add crathgeb/claude-code-pluginsnpx agentmods add plugins/crathgeb/claude-code-plugins/plugin-buildergit clone --depth 1 https://github.com/crathgeb/claude-code-pluginsGrade A, and why
plugin-builder 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 yesterday.
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.
What it actually says
{
"name": "plugin-builder",
"version": "1.0.2",
"description": "A meta-plugin for building Claude Code plugins, including commands, agents, and hooks",
"author": {
"name": "Christopher Rathgeb",
"email": "[email protected]"
},
"license": "MIT",
"keywords": ["plugin", "development", "builder", "scaffolding", "meta"],
"commands": [
"./commands/create-plugin.md",
"./commands/create-command.md",
"./commands/create-agent.md"
],
"agents": ["./agents/agent-builder.md", "./agents/command-builder.md"]
}
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.
- yesterday First seen · 18 lines scan A e363a5595aab
plugin-builder is a plugin published in the GitHub repository crathgeb/claude-code-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.
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