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 P47Phoenix/Claude-Pluginsnpx agentmods add plugins/p47phoenix/claude-plugins/marketplacegit clone --depth 1 https://github.com/P47Phoenix/Claude-PluginsGrade A, and why
mec-claude-agent-skills 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.
How it starts
The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "mec-claude-agent-skills",
"owner": {
"name": "Michael Connelly",
"email": "[email protected]"
},
"metadata": {
"description": "Collection of plugins for creating Claude Code extensions and building production-grade agentic workflows",
"version": "2.29.1"
},
"plugins": [
{
"name": "agentic-flow-builder",
"description": "Build dynamic agentic workflows using ReAcTree hierarchical decomposition, business rules engine for deterministic gates, and Anthropic's workflow patterns with full audit trails",
"source": "./",
"strict": false,
"skills": [
"./agentic-flow-builder/skills/flow-builder"
]
},
{
"name": "prompt-engineer",
"description": "Expert prompt optimization for LLMs and AI systems. Proactively improves prompts using proven techniques, patterns, and model-specific optimization. Uses Opus for advanced reasoning.",
"source": "./",
"strict": false,
"skills": [
"./prompt-engineer"
]
},
{
"name": "prd-quality-gate-flow",
"description": "Production-grade PRD (Product Requirements Document) workflow system with 7 quality gates, business rules engine for deterministic decisions, episodic memory, and complete audit trails. Implements evidence-based Stage-Gate process with 60% defect reduction and 138% ROI.",
"source": "./",
"strict": false,
"skills": []
},
{
"name": "research-agent",
"description": "Production-grade research agent with auto-detection of 5 research types (Exploratory, Descriptive, Explanatory, Evaluative, Comparative), academic frameworks (PICO, SPICE, PECO, GRADE, ReAct), systematic review protocol, root cause analysis patterns (5 Whys + Fishbone), and prompt-engineered research patterns for source-backed, bias-aware investigations.",
"source": "./",
"strict": false,
"skills": [
"./research-agent"
]
},
{
"name": 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 · 91 lines scan A fdbd6841db46
mec-claude-agent-skills is a plugin published in the GitHub repository P47Phoenix/Claude-Plugins (2 stars, last pushed 3mo 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.
Other plugins, from other repositories
humanizer
Rewrite AI-sounding text so it reads naturally without changing what it says.
nextjs
Official Next.js skills: adopt and optimize Cache Components, adopt Partial Prefetching, and verify runtime behavior against a running dev server.
nextjs
Official Claude Code plugin marketplace for Next.js, serving the skills that ship in the vercel/next.js repository.
claude-plugins-official
Directory of popular Claude Code extensions including development tools, productivity plugins, and MCP integrations.
knowledge-work-plugins
Plugin marketplace listing 97 plugins: noibu, productivity, enterprise-search, cowork-plugin-management, sales.
ecc
Plugin marketplace listing 1 plugin: ecc.