Struct PromptCacheTelemetry 

pub struct PromptCacheTelemetry { /* private fields */ }

Recorder threaded through every LLM dispatch by the executor. Lets the MCP tool surface and integration tests observe whether stages within a run share the cache key.

Implementations

impl PromptCacheTelemetry

pub fn new() -> Self

Construct an empty telemetry recorder.

pub fn record(&self, key: CacheKey)

Record a cache key (called by the executor before each LLM dispatch). A poisoned mutex is treated as “drop the record” rather than panic — telemetry should never wedge the dispatch.

pub fn snapshot(&self) -> Vec<CacheKey>

Snapshot the recorded keys in observation order. Used by tests

• the MCP tool’s response trace.

pub fn all_keys_match(&self) -> bool

true if every recorded key is identical. The Form 3 acceptance criterion: stages within a run must share the cache key. With zero or one recordings the predicate trivially holds.

pub fn len(&self) -> usize

Number of recordings.

pub fn is_empty(&self) -> bool

true if no keys have been recorded.

Trait Implementations

impl Debug for PromptCacheTelemetry

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

Formats the value using the given formatter.

impl Default for PromptCacheTelemetry

fn default() -> PromptCacheTelemetry

Returns the “default value” for a type.