Struct ProviderCapabilities 

pub struct ProviderCapabilities {
    pub streaming: bool,
    pub reasoning: bool,
    pub tool_calls: bool,
    pub parallel_tool_calls: bool,
    pub structured_output: bool,
    pub usage: bool,
    pub context_cancellation: bool,
    pub context_deadline: bool,
}

Provider capability metadata used by hosts and conformance tests.

Capabilities are descriptive, not a security boundary. When a provider declares support for an optional capability, it should pass the matching provider conformance cases. Unsupported direct calls should return ProviderError::Unsupported rather than panic.

Fields

streaming: bool

Supports Provider::stream_chat / Provider::stream_chat_with_context.

reasoning: bool

Maps provider reasoning/thinking output to Message or StreamEvent::Reasoning.

tool_calls: bool

Supports model tool-call requests.

parallel_tool_calls: bool

Preserves multiple tool calls in one assistant turn.

structured_output: bool

Accepts ModelOptions::structured as a provider-side best-effort constraint.

usage: bool

Reports provider token usage when the backend supplies it.

context_cancellation: bool

Cooperatively observes cancellation from ProviderRequestContext.

context_deadline: bool

Cooperatively observes deadlines from ProviderRequestContext.

Implementations

impl ProviderCapabilities

pub fn baseline() -> Self

Baseline provider capabilities: non-streaming text only.

Trait Implementations

impl Clone for ProviderCapabilities

fn clone(&self) -> ProviderCapabilities

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProviderCapabilities

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

Formats the value using the given formatter.

impl Default for ProviderCapabilities

fn default() -> ProviderCapabilities

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ProviderCapabilities

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ProviderCapabilities

impl PartialEq for ProviderCapabilities

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ProviderCapabilities

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 ProviderCapabilities