Function cost_unit_for_dispatch 

pub fn cost_unit_for_dispatch(
    verb: &str,
    params: &Value,
    result: &Value,
    registered_model_count: impl FnOnce() -> i64,
) -> i64

Compute resource.cost_unit for one successful dispatch.

params is the original request’s top-level arguments (GateRequest::args, already in scope, read-only, at the audit-row emission seam in crates/khive-runtime/src/pack.rs); result is the dispatch’s own successful Value; registered_model_count reads PackRuntime::registered_embedding_model_names().len() for the pack that owns verb, lazily.

Callers MUST only invoke this for a successful (Ok) dispatch result. Error-outcome dispatches omit resource.cost_unit entirely (ADR-103 Amendment 1’s “absence has exactly two meanings” rule: a pre-amendment event, or a dispatch that errored) and must never call into this function: there is no successful handler Value to read item_count from for an errored dispatch.