---
title: "claude-dev-kit"
description: "Claude API and MCP development workflows paired with the live Claude Code documentation MCP."
canonical: https://agentpluginsdirectory.com/plugins/claude-dev-kit
last-updated: 2026-10-12
---

# claude-dev-kit
Claude API and MCP development workflows paired with the live Claude Code documentation MCP.
- Slug: claude-dev-kit
- Publisher: travnie
- Repository: https://github.com/travnie/twojstar
- Manifest: plugins/claude-dev-kit/plugin.json
- Version: 0.1.0
- License: Apache-2.0 AND ISC
- Category (editorial): other
- Skills: 2 (claude-api, mcp-builder)
- MCP servers: 1 (claudeCodeDocs)
- Stars: 3
- Repository created: 2026-09-05
- Repository last pushed: 2026-10-12
- Publisher type: Organization
- Listing: https://agentpluginsdirectory.com/plugins/claude-dev-kit
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What claude-dev-kit does, in the publisher's words

Portable Agent Plugins 1.0 package combining Anthropic's upstream claude-api and mcp-builder skills with the public Claude Code Docs MCP.

- skills/claude-api/: upstream Claude API / Anthropic SDK reference skill.
- skills/mcp-builder/: upstream MCP server design and evaluation skill.
- mcp.json: https://code.claude.com/docs/mcp, a public Claude Code documentation MCP.
- agents/openai.yaml files are thin host adapters added by this repository. The upstream snapshot is otherwise preserved except for the documented MCP evaluation-harness compatibility fixes below.

The Anthropic skill snapshot is pinned to anthropics/skills@683bc88e56f3e09ba94f7055977f3d3aa499f202. Update that pin deliberately when refreshing the vendored skills.\n\n## Local compatibility fixes\n\nskills/mcp-builder/scripts/evaluation.py carries small local fixes for MCP SDK content serialization, multiple tool calls in one Claude response, and repeatable -e / -H CLI options. Keep these patches when refreshing the upstream snapshot unless upstream has incorporated equivalent fixes.

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/travnie/twojstar/HEAD/plugins/claude-dev-kit/README.md

## Skills

- claude-api: Reference for the Claude API / Anthropic SDK, model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER, read BEFORE opening the target file; don't skip because it "looks like a one-liner", whenever: the prompt names Claude/Anthropic in any form…
- mcp-builder: Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Descriptions come from the frontmatter of each SKILL.md, punctuation lightly normalized.

## MCP servers

- claudeCodeDocs: transport: streamable-http; url: https://code.claude.com/docs/mcp

Read from the plugin's own mcp.json. Environment variable names only, never values.