Struct Capabilities 

pub struct Capabilities {
    pub supports_tools: bool,
    pub supports_vision: bool,
    pub supports_reasoning: ReasoningCapability,
    pub max_context_tokens: Option<usize>,
    pub emits_thinking_signature: bool,
}

Capabilities of a model as advertised by its provider adapter.

Fields

supports_tools: bool

Native tool/function calling supported.

supports_vision: bool

Vision (image inputs on user messages) supported.

supports_reasoning: ReasoningCapability

Reasoning controls exposed — binary, enumerated, or numeric.

max_context_tokens: Option<usize>

Maximum context window in tokens, if the adapter knows.

emits_thinking_signature: bool

Does the provider emit a verifiable “thinking signature” that must round-trip on the next request (Anthropic’s extended thinking)? When true, the reducer preserves the signature on the assistant message via thinking_signature.

Implementations

impl Capabilities

pub fn from_legacy(caps: &ModelCapabilities) -> Self

Construct from the adapter-layer ModelCapabilities. Used by provider wrappers so we don’t duplicate adapter-side capability logic.

pub fn with_thinking_signature(self) -> Self

Builder: mark that this provider round-trips thinking signatures.

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 Debug for Capabilities

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

Formats the value using the given formatter.