Enum UseCase 

pub enum UseCase {
    Assistant,
    Coding,
    Summarize,
    Vision,
    Transcription,
    Search,
}

What the user wants to do, in their terms — not a model ID. Closed enum: adding a use case is a deliberate FFI-visible change, never a silent string fallback. Each variant maps to a UseCaseRole and a required / preferred ModelCapability set (see UseCase::required_capabilities).

Variants

Assistant

General chat / Q&A. The default.

Coding

Code generation, repair, refactoring.

Summarize

Text condensation.

Vision

Image understanding (a generative model that also sees).

Transcription

Audio → text.

Search

Semantic search — an embedding model for retrieval. NOT an LLM performing web search with tools; this is the Retrieval role and maps to the Embed capability, so it is ranked separately from any generative chat model.

Implementations

impl UseCase

pub fn role(self) -> UseCaseRole

The role lane this use case is ranked within.

pub fn required_capabilities(self) -> &'static [ModelCapability]

Hard eligibility filter — a model missing any of these is excluded.

pub fn preferred_capabilities(self) -> &'static [ModelCapability]

Soft preference — present capabilities add a ranking bonus but are never required for eligibility.

Trait Implementations

impl Clone for UseCase

fn clone(&self) -> UseCase

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for UseCase

impl Debug for UseCase

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

Formats the value using the given formatter.

impl Default for UseCase

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for UseCase

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for UseCase

impl Hash for UseCase

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for UseCase

fn eq(&self, other: &UseCase) -> 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 UseCase

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 UseCase