Show HN: Claude Code Mode

Category: devtools

Tags: claude-code, mcp, sandbox, llm-agents, token-efficiency

Score: 7.0/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 6)

code-mode is a Claude Code plugin that lets Claude write a single JavaScript program to call multiple MCP tools inside a sandbox, so only the final answer enters the context instead of raw tool output. It reduces token cost (measured 43% lower on Haiku) while keeping permission checks and adding tool hints and reusable saved functions.

Target audience: AI/LLM developers and backend devs building agent workflows with Claude Code and MCP tools

Repository: https://github.com/gabe4coding/claude-code-mode · TypeScript · MIT · 8 stars

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