mcp-patterns

Model Context Protocol (MCP) server patterns for building integrations with Claude Code. Triggers on: mcp server, model context protocol, tool handler, mcp resource, mcp tool.

2.15x

Quality

75%

Does it follow best practices?

Impact

97%

2.15x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./data/skills-md/0xdarkmatter/claude-mods/mcp-patterns/SKILL.md

Evaluation results

92%

61%

Build a File Search MCP Server

MCP server project structure and Python server entry point

Criteria

Without context

With context

src layout

100%

server.py exists

100%

tools.py exists

pyproject.toml exists

100%

mcp.server import

25%

100%

stdio_server import

100%

list_tools decorator

100%

call_tool decorator

100%

call_tool return format

100%

unknown tool ValueError

100%

stdio_server startup

100%

uv Claude Desktop config

55%

100%

95%

Weather MCP Tool with Multiple Capabilities

MCP tool schema, error handling, and correct content return format

Criteria

Without context

With context

mcp.server import

100%

stdio_server import

100%

list_tools decorator

100%

tool schema fields

100%

call_tool decorator

100%

content return structure

100%

unknown tool ValueError

100%

stdio_server async context

100%

create_initialization_options

100%

asyncio.run entrypoint

100%

review_notes content format

50%

100%

Connecting a GitHub MCP Server to Claude Desktop

Claude Desktop configuration with uv and env var auth placement

Criteria

Without context

With context

Uses uv command

100%

uv run args

100%

--directory flag

100%

python -m invocation

100%

env block present

100%

token in env block

100%

explanation: uv rationale

100%

explanation: env placement rationale

100%

No shell export suggestion

100%

Repository: NeverSight/skills_feed
Commit: c50d4b5

Evaluated: 30 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Build a File Search MCP Server Weather MCP Tool with Multiple Capabilities Connecting a GitHub MCP Server to Claude Desktop

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