Struct Capabilities 

pub struct Capabilities {
    pub tool_calls: FeatureSupport,
    pub parallel_tool_calls: FeatureSupport,
    pub thinking: FeatureSupport,
    pub vision: FeatureSupport,
    pub prompt_cache: FeatureSupport,
    pub thinking_echo: ThinkingEcho,
}

Provider-level capability matrix.

Model-level differences are expressed via ModelCapabilityOverrides; the main loop merges them as needed: a model-level Some(_) overrides the provider level, while None falls back to the provider level.

Fields

tool_calls: FeatureSupport

Tool calls (content_block contains tool_use / tool_calls fields).

parallel_tool_calls: FeatureSupport

Multiple concurrent tool_use calls within a single turn.

thinking: FeatureSupport

Chain of thought.

vision: FeatureSupport

Multimodal input (images).

prompt_cache: FeatureSupport

Prompt cache.

thinking_echo: ThinkingEcho

Thinking content replay strategy. See ThinkingEcho.

Trait Implementations

impl Clone for Capabilities

fn clone(&self) -> Capabilities

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Capabilities

impl Debug for Capabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Capabilities

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Capabilities

impl PartialEq for Capabilities

fn eq(&self, other: &Capabilities) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Capabilities

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Capabilities