model_config category is stabilized.
Agents can use the category for model-related parameters such as context size or speed and quality trade-offs. Clients can then group those options near the primary model selector without depending on Agent-specific option IDs.
For the protocol documentation, see Option Categories.Announcements
Model Config Category is stabilized
Announcement that the model_config session configuration category is now part of the stable ACP protocol.
Published: June 24, 2026
The Model Config Option Category RFD has moved to Completed and the