1. Enable the Xcode extension
Open Comment Writer and choose the hammer button. Open Xcode Source Editor Extensions in System Settings, then enable Comment Writer.
2. Connect an AI service
Choose OpenAI, Anthropic Claude, Ollama, or Custom API. Add the required key or server address, then fetch the models available from that service.
Choose a model and select Use this service. The matching provider card will show an Active chip.
3. Generate documentation
In Xcode, select a Swift declaration. Choose Editor › Code documentation › Analyse and Generate. The generated DocC comment is inserted above the selection.
Ollama cannot connect
Confirm Ollama is running and the server address is correct. The default address is http://localhost:11434. For another Mac, use its private network address and make sure Ollama accepts network connections.
The command is unavailable
Select at least one complete line of Swift source. If the command still does not appear, disable and re-enable Comment Writer in System Settings, then restart Xcode.