Function tool

packages/opencode/test/cli/run/session-data.test.ts:96–111

(input: { id: string; messageID: string; tool: string; state: Record<string, unknown>; callID?: string })

}

function tool(input: { id: string; messageID: string; tool: string; state: Record<string, unknown>; callID?: string }) {
  return {
    type: "message.part.updated",
    properties: {
      part: {
        id: input.id,
        messageID: input.messageID,
        sessionID: "session-1",
        type: "tool",
        tool: input.tool,
        ...(input.callID ? { callID: input.callID } : {}),
        state: input.state,
      },
    },
  }
}

describe("run session data", () => {
  test("buffers delayed assistant text until the role is known", () => {