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Create PhaseoAgentSdk::Tool values and pass them through define_tool. Tools can include:
  • JSON parameters shown to the model
  • input_schema, output_schema, and event_schema validation callbacks
  • timeout_ms and an execute callback
  • boolean or callable require_approval
  • on_tool_called and on_response_received for interactive work
  • next_turn_params and on_error: "return-to-model"
Use runtime.emit_progress for preliminary results and set_context for application context. Bounded threads can execute independent tools concurrently while saved results remain in model call order.
Last modified on October 18, 2026