Agents API (beta): create, get, update, delete, list agents with tools,
handoffs, completion args, and guardrails support.
Conversations API (beta): create, append, history, messages, restart,
delete, list conversations. Supports agent-backed and model-only
conversations with function calling and handoff execution modes.
Multimodal: ChatMessageContent enum (Text/Parts) with ContentPart
variants for text and image_url. Backwards-compatible constructors.
new_user_message_with_images() for mixed content messages.
Chat: reasoning field on ChatResponseChoice for Magistral models.
HTTP: PATCH methods for agent updates.
81 tests (30 live API integration + 35 serde unit + 16 existing).
- Use Model::mistral_small_latest() instead of enum variants
- Use Model::mistral_embed() instead of EmbedModel::MistralEmbed
- Use serde_json::json!() for tool parameter schemas
- Update ChatParams for Option<f32> temperature field
- Update streaming test comments for new delta.content type
BREAKING CHANGE:
- `Chat::ChatParams.safe_prompt` & `Chat::ChatRequest.safe_prompt` are now `bool` instead of `Option<bool>`. Default is `false`.
- `Chat::ChatParams.temperature` & `Chat::ChatRequest.temperature` are now `f32` instead of `Option<f32>`. Default is `0.7`.
- `Chat::ChatParams.top_p` & `Chat::ChatRequest.top_p` are now `f32` instead of `Option<f32>`. Default is `1.0`.
BREAKING CHANGE: You can't set the `stream` option for `client.chat*()`.
Either use `client.chat_stream()` if you want to use streams
or use `client.chat()` / `client.chat_async()` otherwise.
