mcp-builderlisted

# MCP Builder Design MCP servers that are easy for agents to discover, compose, and trust. - Leverage native parallel subagent dispatch and 200k+ context windows where available. ## When to Use Use symptom -> action triggers: when one matches, apply this skill and verify with the protocol below. - You are creating a new MCP server around an external API or internal platform. - An existing MCP server needs better tool naming, schemas, pagination, or error handling. - You need a workflow for evaluating whether an MCP server is actually useful for real agent tasks. - You are deciding between TypeScript and Python MCP implementations. ## Glossary - MCP Inspector: An interactive client for browsing registered tools, schemas, inputs, and outputs while you validate a server. - Structured outputs: Predictable JSON or schema-backed payloads that downstream agents can parse safely instead of scraping prose. - Workflow tool: A higher-level tool that coordinates several lower-level API steps into one agent-friendly operation. ## Core Workflow ### 1. Research First Before implementation: 1. Read the current MCP protocol documentation. 2. Read the relevant SDK guide for your implementation language. 3. Review the target service API and list the highest-value operations. 4. Decide which operations should stay low-level and which deserve dedicated workflow tools. ### 2. Design Agent-Friendly Tools Prefer tools that are easy to discover and compose: - use clear action-oriented