Struct ThinkingBlock 

pub struct ThinkingBlock {
    pub text: String,
    pub signature: String,
}

One Anthropic-style extended-thinking content block. Anthropic’s API returns thinking output as a sequence of {type:"thinking", thinking, signature} blocks; the signature is a server-issued cryptographic token that we MUST echo back unchanged on every subsequent assistant turn or the API rejects the request with 400 The content[].thinking in the thinking mode must be passed back to the API. Per Anthropic docs, thinking blocks must also appear before text/tool_use blocks inside the assistant message — provider/claude.rs::format_messages enforces that ordering.

Fields

text: String

The thinking text streamed via thinking_delta events.

signature: String

Server-issued signature received via signature_delta. Required for round-trip; an empty string means we never received one (older session files, non-Anthropic provider) — emit anyway, the upstream either accepts empty or rejects only when thinking + tool_use is active (in which case we already had a signature).

Trait Implementations

impl Clone for ThinkingBlock

fn clone(&self) -> ThinkingBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ThinkingBlock

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ThinkingBlock

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ThinkingBlock

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

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 ThinkingBlock