Scale to many tools with tool search

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

try {
  for await (const message of query({
    prompt: "Find and run the appropriate database query",
    options: {
      mcpServers: {
        "enterprise-tools": {
          // Connect to a remote MCP server
          type: "http",
          url: "https://tools.example.com/mcp"
        }
      },
      allowedTools: ["mcp__enterprise-tools__*"], // Wildcard pre-approves all tools from this server
      env: {
        ...process.env, // env replaces the subprocess environment, so keep inherited variables
        ENABLE_TOOL_SEARCH: "auto:5" // Activate tool search when deferrable definitions reach 5% of context
      }
    }
  })) {
    if (message.type === "result" && message.subtype === "success") {
      console.log(message.result);
    }
  }
} catch (error) {
  // A single-shot query() throws after yielding an error result
  console.log(`Session ended with an error: ${error}`);
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions, ResultMessage


async def main():
    options = ClaudeAgentOptions(
        mcp_servers={
            "enterprise-tools": {
                "type": "http",
                "url": "https://tools.example.com/mcp",
            }
        },
        allowed_tools=[
            "mcp__enterprise-tools__*"
        ],  # Wildcard pre-approves all tools from this server
        env={
            "ENABLE_TOOL_SEARCH": "auto:5"  # Activate tool search when deferrable definitions reach 5% of context
        },
    )

    try:
        async for message in query(
            prompt="Find and run the appropriate database query",
            options=options,
        ):
            if isinstance(message, ResultMessage) and message.subtype == "success":
                print(message.result)
    except Exception as error:
        # A single-shot query() raises after yielding an error result
        print(f"Session ended with an error: {error}")


asyncio.run(main())

options: {
  systemPrompt: {
    type: "preset",
    preset: "claude_code",
    append: "You can search for tools to interact with Slack, GitHub, and Jira."
  }
}

options = ClaudeAgentOptions(
    system_prompt={
        "type": "preset",
        "preset": "claude_code",
        "append": "You can search for tools to interact with Slack, GitHub, and Jira.",
    }
)