Enum RoundObservation 

pub enum RoundObservation {
    Accepted {
        prompt_tokens: u32,
        estimated_tokens: usize,
    },
    SuspectedOverflow {
        prompt_tokens: u32,
    },
    ThinkingOnly,
}

One per-round capability observation, reported through ChatCtx::on_round_usage at the moment it is observed (Phase 20, docs/design/model-self-tuning.md §2.2 — the recover_cw_400 pattern, generalized to the success direction). Evidence must not wait for a turn epilogue an error can skip: the motivating failure discarded a backend- accepted 8,734-token prompt because the turn later ended in Err.

Variants

Accepted

Backend evaluated prompt_tokens and the round produced a usable response (tool calls or non-empty content). estimated_tokens is the loop’s chars/4 estimate of the same request, for calibration. Quality-gated AND truncation-gated at the emission sites: never emitted when the prompt was within 5% of the request’s num_ctx (Ollama may have silently dropped the head of the prompt).

Fields

prompt_tokens: u32

estimated_tokens: usize

SuspectedOverflow

Persistent empty responses at prompt_tokens after retries (the 85%-of-safe-context silent-overflow exit).

Fields

prompt_tokens: u32

ThinkingOnly

Response carried only non-content fields (thinking/reasoning) with empty content.

Trait Implementations

impl Clone for RoundObservation

fn clone(&self) -> RoundObservation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RoundObservation

impl Debug for RoundObservation

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

Formats the value using the given formatter.

impl Eq for RoundObservation

impl PartialEq for RoundObservation

fn eq(&self, other: &RoundObservation) -> 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 StructuralPartialEq for RoundObservation