Use -fresh to start a new chat session instead of resuming the most recent one.
Use the session argument to resume a specific session by number or session ID. Run list-ai-sessions to list available sessions. Example: ai-mode session = 2.
Use the model argument to select a specific model, e.g., ai-mode "claude-opus-4.6". This sends a /model command to the agent at the start of the session. If no model argument is given, the prefs.ai_agent_model preference is used as the default. If that is also unset, the agent's default model is used.
Once inside ai-mode you can get a list of models by asking:
simics?>>> which models are available
And the agent should provide you with available models. Use the /model command to switch model at any time, e.g., /model claude-opus-4.6
By default, all Simics log messages are captured to a temporary file while AI mode is active, so that the agent can inspect them when diagnosing problems. Use -no-log to disable this.
Prerequisites
This command requires the GitHub CLI with the Copilot extension installed and authenticated. To set it up:
A GitHub Copilot license (individual, business, or enterprise) is required.