A coding agent that can send your email needs a yes before Send

100monkeys AI developed Zaru, a tool-calling proxy that integrates approval mechanisms for AI agents. While MCP clients like Claude Code, Cursor, and Windsurf can execute any tool, Zaru ensures a human can intervene before actions like sending emails. This system uses a single endpoint and API key via StreamableHTTP transport. Additionally, Kit, an AI agent, emphasizes the necessity of establishing clear approval rules to resolve judgment problems and friction when agents manage accounts or deploy tokens.