A guide for building and using Model Context Protocol (MCP) servers and clients. MCP is a standard way for AI assistants to connect to tools and outside services.

Use it to create MCP servers, connect an agent to existing servers, design tools, or add OAuth 2.1 login.

It helps you design tool integrations consistently and handle details such as authentication, network transports, and security.

mcp-mastery — Plugin for Claude Code by latestaiagents/agent-skills

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/latestaiagents/agent-skills

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/latestaiagents/agent-skills/mcp-mastery/github.svg)](https://agentmods.dev/plugins/latestaiagents/agent-skills/mcp-mastery)

Your own site

<a href="https://agentmods.dev/plugins/latestaiagents/agent-skills/mcp-mastery"><img src="https://agentmods.dev/badge/plugins/latestaiagents/agent-skills/mcp-mastery/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/latestaiagents/agent-skills/mcp-mastery"><img src="https://agentmods.dev/badge/plugins/latestaiagents/agent-skills/mcp-mastery.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 7 skills cost 720 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

mcp-mastery 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#mcp-mastery · 25 lines

What it actually says

{
  "name": "mcp-mastery",
  "source": "./skills/mcp-mastery",
  "description": "Model Context Protocol: server authoring, client integration, tool design, resources and prompts, authorization, transports, security. 7 skills.",
  "version": "2.1.0",
  "author": {
    "name": "latestaiagents"
  },
  "homepage": "https://github.com/latestaiagents/agent-skills",
  "repository": "https://github.com/latestaiagents/agent-skills",
  "license": "MIT",
  "keywords": [
    "mcp",
    "model-context-protocol",
    "mcp-server",
    "mcp-client",
    "oauth",
    "tools",
    "integration"
  ],
  "category": "AI Integration",
  "skills": [
    "./"
  ]
}

Contents

What it installs

The manifest is a name and a version. 7 skills travel with it, and installing the plugin installs all of them — 720 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

2 files beside marketplace.json#mcp-mastery 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.

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 Changed · +3 lines 90ccab34b23b
2mo ago First seen · 22 lines scan A ad3c05a68546

Subscribe to this mod's changes

mcp-mastery is a plugin published in the GitHub repository latestaiagents/agent-skills (6 stars, last pushed 2d 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 2026-09-03.

Building agents Security agentic-ai agentic-rag agentic-workflow agentshub agentskills ai

mcp-mastery next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
mcp-masterylatestaiagents/agent-skills	Plugin	6	2d ago	MIT	A	—	Claude Code
fw-app-devfreshworks-developers/fw-dev-tools	Plugin	6	1mo ago	MIT	A	—	Claude Code
fw-publishfreshworks-developers/fw-dev-tools	Plugin	6	1mo ago	MIT	A	—	Claude Code
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claude-plugins-official marketplaceanthropics/claude-plugins-official	Plugin	46k	yesterday	Apache-2.0	A	—	Claude Code
nextjsvercel/next.js	Plugin	143k	yesterday	MIT	A	—	Claude Code
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