Bridge Module

import { runClaude } from "@anthropic-ai/claude-code";

// Minimal SDK usage — async iterator of events
for await (const message of runClaude({
  messages: [{ role: "user", content: "List the files in /tmp" }],
  tools: ["BashTool", "FileReadTool"],
})) {
  if (message.type === "text") process.stdout.write(message.text);
  if (message.type === "tool_result") console.log(message.tool, message.output);
}

import { createSession } from "@anthropic-ai/claude-code";

// Stateful session — continue a conversation
const session = await createSession({
  tools: ["BashTool", "FileReadTool", "FileEditTool"],
  cwd: process.cwd(),
});

// First turn
await session.send("Read package.json and summarize the project");

// Follow-up in same context
await session.send("Now update the description field");

// AgentTool internally does this:
import { streamQuery } from "@anthropic-ai/claude-code/internal";

// Fork parent state for subagent
const subagentEngine = new QueryEngine({
  ...parentEngine.getForkedState(),
  messages: [],  // fresh history
});

// Run headlessly — same 7-phase loop, no terminal output
for await (const event of subagentEngine.query(subagentTask)) {
  results.push(event);
}
// Results injected back as tool_result in parent conversation