Introduce typed tool plugins and CLI build tools

## What changed OpenClaw added the defineToolPlugin helper along with three new CLI commands: init, validate, and build. The changes generate manifest metadata and typed context factories automatically during plugin creation.

The update targets developers who extend the agent with custom capabilities. It replaces manual manifest writing and loose typing with a structured workflow that produces consistent plugin output.

## Why it matters Typed plugins reduce runtime errors when the agent loads community or personal skills from ClawHub. This matters for Vibe Builders who maintain their own automation surface instead of relying on closed cloud agents.

The bet is that more reliable plugin development will increase the number of safe, shareable skills without forcing every user to audit code. It directly competes with less structured agent runtimes that leave extension work to ad-hoc scripts.

## How to use it Run npx openclaw init inside a new directory to scaffold a typed plugin. Edit the generated TypeScript file that defineToolPlugin exports, then execute openclaw validate followed by openclaw build.

The resulting manifest and context factory files are ready for local testing or submission to ClawHub. No additional paid plan is required; the commands are part of the free MIT-licensed CLI.

## Watch for Confirm the bet if published plugins show fewer type-related failures in agent logs over the next month. The approach breaks if context factories cannot express complex state that some browser or shell tasks require. Expect a follow-up release that adds hot reload for faster iteration during development.