Write a tutorial: "How to Create a Custom Agent Tool"

[kanweiwei]

CreatorWeave has 30+ agent tools, but there's no tutorial showing how to add a new one.

What to do:

1. Study an existing simple tool like web/agent/tools/ls.tool.ts
2. Study the tool registration in web/agent/tools/ and the ToolEntry type in tool-types.ts
3. Write a step-by-step tutorial at docs/tutorials/custom-agent-tool.md covering:
   • How tool definitions work (OpenAI function calling format)
   • How to implement a ToolExecutor
   • How to register a tool
   • A complete example (e.g., a "word count" tool)

Skills needed: TypeScript, ability to read and understand existing code patterns

Reference files:

• web/agent/tools/ls.tool.ts — simple tool example
• web/agent/tools/tool-types.ts — type definitions
• web/agent/tools/switch-mode.tool.ts — another simple tool

Estimated time: 3-4 hours

[snakefood3232]

The issue is missing a tutorial for creating custom agent tools in CreatorWeave. I'd handle this by analyzing the existing ls.tool.ts and tool-types.ts to document the pattern and provide a complete "word count" example. Can have a PR with the step-by-step guide up in a few hours—I specialize in TypeScript/Next.js and write production docs.

[snakefood3232]

I'll write the "How to Create a Custom Agent Tool" tutorial by studying the existing ls.tool.ts pattern and ToolEntry types. I'll document the OpenAI function format, ToolExecutor implementation, and registration with a complete word count example. I can have this PR ready in about 3 hours—I regularly build similar tool systems in TypeScript/Next.js projects.