Coding & Debugging
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This document provides Python-specific best practices and examples for implementing MCP servers using the MCP Python SDK. It covers server setup
tool registration patterns
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General
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- [ ] Error messages are clear
actionable
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General
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- [ ] Error handling uses proper type guards (e.g.
`axios.isAxiosError`
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General
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- [ ] Annotations correctly set (readOnlyHint
destructiveHint
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Coding & Debugging
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- [ ] Tools enable complete workflows
not just API endpoint wrappers
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General
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- [ ] All tools include `title`
`description`
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General
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Before finalizing your Node/TypeScript MCP server implementation
ensure:
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General
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- Common operations like pagination
filtering
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General
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- If you find yourself writing similar logic twice
extract it into a function
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General
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await transport.handleRequest(req
res
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General
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- **stdio**: Command-line tools
local development
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General
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- **Streamable HTTP**: Web services
remote access
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General
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app.post('/mcp'
async (req
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General
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res.on('close'
() => transport.close());
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General
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// Create new transport for each request (stateless
prevents request ID collisions)
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Data
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Expose data as resources for efficient
URI-based access:
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General
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console.error(Server error:
error);
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General
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console.error(Server error:
error);
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General
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app.listen(port
() => {
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General
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res.on('close'
() => transport.close());
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General
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await transport.handleRequest(req
res
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General
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.max(200
Query must not exceed 200 characters)
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General
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app.post('/mcp'
async (req
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General
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.min(2
Query must be at least 2 characters)
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