Struct BeforeGenerate 

pub struct BeforeGenerate {
    pub model: String,
    pub message_count: usize,
    pub attempt: u32,
    pub assistant_text: Option<String>,
}

before Generate: runs before the LLM call. Call-site hook — can modify request fields, or set assistant_text to short-circuit (skip the real LLM call with a synthetic reply).

Fields

model: String

message_count: usize

attempt: u32

assistant_text: Option<String>

Short-circuit: Some = skip the LLM call and use this synthetic assistant text as the reply. On commit, it is built into a Message.

Trait Implementations

impl Clone for BeforeGenerate

fn clone(&self) -> BeforeGenerate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BeforeGenerate

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

Formats the value using the given formatter.

impl HookStep for BeforeGenerate

fn event_name(&self) -> &'static str

Event name (snake_case). Used in envelope headers and matchers.

fn to_envelope(&self) -> Value

Projects the step into an input envelope — fed to command stdin / prompt templates. Contains a common header plus step-specific fields.

fn apply_verdict( &mut self, verdict: &Value, ) -> Result<HookControl, VerdictError>

Apply the handler’s output verdict (JSON) back to this step: parse the common control / additional_context fields, then handle the step-specific “fill output” fields. Returns a control directive.