cast init my-agent

? Select a template:
❯ default — Coding agent with file and bash tools (like Claude Code)
  research-agent — Deep research with web search and document synthesis
  support-agent — Customer support with ticket handling and escalation
  mcp-tools — Agent with example MCP server integration

cast init my-agent --template research-agent

my-agent/
├── castari.json      # Agent configuration
├── package.json      # Dependencies
├── tsconfig.json     # TypeScript config
├── src/
│   └── index.ts      # Agent entry point with tools
├── CLAUDE.md         # Agent instructions
└── README.md         # Documentation

cast invoke my-agent "What files are here?"
cast invoke my-agent "Create a hello.py that prints Hello World"
cast invoke my-agent "Run the tests"

cast invoke my-agent "Research the current state of AI agents in 2026"
cast invoke my-agent "Compare AWS, GCP, and Azure for serverless"

cast invoke my-agent "I need help with order #12345"
cast invoke my-agent "How do I reset my password?"

# My Agent

You are a helpful assistant that...

## Guidelines
- Be concise
- Always explain before acting
- Ask for clarification when unsure

const tools: Anthropic.Tool[] = [
  {
    name: "my_custom_tool",
    description: "Does something useful",
    input_schema: {
      type: "object",
      properties: {
        input: { type: "string" }
      },
      required: ["input"]
    }
  }
];

npm install axios  # Example: add HTTP client

import axios from 'axios';

// In your tool handler
const response = await axios.get('https://api.example.com/data');

cast deploy