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MCP server builder

Guides building high-quality MCP servers in Python (FastMCP) or Node/TypeScript (MCP SDK), covering tool design, error handling, evaluation, and best practices; full reference docs included.

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In Teloa, open Marketplace, search for "MCP server builder" and add it (Skill anthropic.mcp-builder).

Source
Teloa official · GitHub anthropics/skills
Changes from the original:
  • Frontmatter keeps only name and description; the license field removed.
  • The scripts/ directory (connections.py, evaluation.py, example_evaluation.xml, requirements.txt) is not included (build rejects script files); a note is added to SKILL.md stating scripts are excluded; the evaluation reference doc reference/evaluation.md is included (see the last change).
  • reference/mcp_best_practices.md, node_mcp_server.md and python_mcp_server.md are included unchanged.
  • Emoji before two headings and ten link labels in SKILL.md are removed and the note at the top is updated; reference/evaluation.md gets a change notice at the top, and the two symbols marking right and wrong answers in the output format are written as correct/incorrect. Only symbols change, not content.
GitHub
Resource file: catalog/skills/anthropic.mcp-builder.json
Files kept by the marketplace: artifacts/skills/anthropic.mcp-builder/1.0.1/
Original source (locked version): GitHub anthropics/skills@3337550
License
Apache-2.0
License files: LICENSE.txt
Review
Reviewed by Teloa on 2026-09-28
Compatibility
Content only · Teloa >=0.2.0-alpha.6
  • Pure reference guide; no extra tools required to load. Building an actual MCP server requires Python or Node.js in the user's own development environment.
Technical compatibilityTeloa >=0.2.0-alpha.6 · agent engine 0.1.7-rc.1
Permissions and requirements
No extra permissions
Uses the network: no
Data flow
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Skill anthropic.mcp-builder · version 1.0.1

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