Enum StopReason 

pub enum StopReason {
    EndTurn,
    MaxTokens,
    StopSequence,
    ContentFilter,
    ToolUse,
}

Stop reason for generation

Per MCP 2025-06-18 spec, these values use camelCase serialization for interoperability.

Variants

EndTurn

Generation completed naturally

MaxTokens

Hit maximum token limit

StopSequence

Hit a stop sequence

ContentFilter

Content filtering triggered

ToolUse

Tool use required

Trait Implementations

impl Clone for StopReason

fn clone(&self) -> StopReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StopReason

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StopReason

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for StopReason

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 StopReason

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for StopReason

impl Eq for StopReason

impl StructuralPartialEq for StopReason