db9e0f42af
* fix(core): prevent ModelSettings default max_output_tokens from overriding agent config When a conversation's model_settings were saved, the Pydantic default of max_output_tokens=4096 was always persisted to the DB even when the client never specified it. On subsequent messages, this default would overwrite the agent's max_tokens (typically None) with 4096, silently capping output. Two changes: 1. Use model_dump(exclude_unset=True) when persisting model_settings to the DB so Pydantic defaults are not saved. 2. Add model_fields_set guards at all callsites that apply _to_legacy_config_params() to skip max_tokens when it was not explicitly provided by the caller. Also conditionally set max_output_tokens in the OpenAI Responses API request builder so None is not sent as null (which some models treat as a hard 4096 cap). * nit * Fix model_settings serialization to preserve provider_type discriminator Replace blanket exclude_unset=True with targeted removal of only max_output_tokens when not explicitly set. The previous approach stripped the provider_type field (a Literal with a default), which broke discriminated union deserialization when reading back from DB.
33 KiB
33 KiB