Struct Caps 

#[non_exhaustive]
pub struct Caps {
    pub session: SessionSupport,
    pub fork: bool,
    pub events: bool,
    pub native_system: bool,
    pub schema: SchemaSupport,
    pub commands: bool,
    pub live_follow_up: bool,
    pub approvals: bool,
}

What an agent supports. Used to reject an impossible request before spawning rather than silently doing something weaker than asked.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

session: SessionSupport

How a native session id is obtained, if at all.

fork: bool

Whether resuming can branch a new session instead of appending in place.

events: bool

Whether the agent emits a structured event stream this crate normalizes.

native_system: bool

Whether the agent takes a real system-prompt flag. When false the system text is prepended to the prompt so it still reaches the model.

schema: SchemaSupport

How the agent accepts a JSON Schema for its answer, if at all.

commands: bool

Whether the agent answers slash commands such as /compact.

Claude publishes a catalogue and acts on them; the others read the same text as prose and would discuss the command rather than run it, which is worse than refusing.

live_follow_up: bool

Whether another user message can be delivered while a turn is running.

approvals: bool

Whether gated tool calls can be routed to the caller for a decision.

Trait Implementations

impl Clone for Caps

fn clone(&self) -> Caps

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Caps

impl Debug for Caps

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

Formats the value using the given formatter.

impl Eq for Caps

impl PartialEq for Caps

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Caps