Claude Code Function Hooks proposal: Express-style middleware to make plugins 10x more powerful
ClaudeDevs · x · 2026-09-04
Anthropic's GitHub issue #91870 details the Function Hooks proposal for Claude Code: TypeScript functions hook into the tool using a registration-order-based 'next' continuation model a la Express/Koa, with side-effect tracking over a parameterized $ object for safety. Hooks could modify nearly any behavior, including React component rendering; workplace admins gain fine-grained programmatic control over what users can change. An architecture doc and demo videos are included; the feature isn't shipped and feedback is open.
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