| protocol-message:gemini-generate-content-response | Gemini GenerateContentResponse | extensions |
| protocol-message:ollama-chat-message | Ollama /api/chat — non-streaming response | extensions |
| protocol-message:ollama-embed-response | Ollama /api/embed — response | extensions |
| protocol-message:ollama-generate-response | Ollama /api/generate — non-streaming response | extensions |
| protocol-message:openai-response-completed | OpenAI Responses / response.completed | extensions |
| protocol-message:openai-response-failed | OpenAI Responses / response.failed | extensions |
| protocol-message:result-message-error-during-execution | ResultMessage subtype=error_during_execution | extensions |
| protocol-message:result-message-error-max-budget-usd | ResultMessage subtype=error_max_budget_usd | extensions |
| protocol-message:result-message-error-max-structured-output-retries | ResultMessage subtype=error_max_structured_output_retries | extensions |
| protocol-message:result-message-error-max-turns | ResultMessage subtype=error_max_turns | extensions |
| protocol-message:result-message-success | ResultMessage subtype=success | extensions |