Agent SDK Definitions

For SDK-based applications, agents can be defined programmatically instead of as markdown files.

TypeScript Definition

import { query, ClaudeAgentOptions, AgentDefinition } from "@anthropic-ai/claude-agent-sdk";

const options: ClaudeAgentOptions = {
  // Parent agent needs Task tool to invoke subagents
  allowed_tools: ["Read", "Grep", "Glob", "Edit", "Write", "Bash", "Task"],

  agents: {
    "code-reviewer": {
      description: "Security-focused code reviewer. Use PROACTIVELY for auth code.",
      prompt: `You are a security code reviewer specializing in authentication
and authorization code. You identify vulnerabilities, suggest fixes,
and ensure best practices are followed.