M3: model pricing and per-step cost accumulation

Extends the model catalog with per-token pricing and accumulates cost per engine step, threading the running total through the store and up into harness-app so it can be surfaced in the UI.
2026-07-10 16:19:59 +02:00
parent a3f6fd6378
commit a99edc116a
7 changed files with 151 additions and 11 deletions
@@ -254,6 +254,8 @@ impl EngineHandle {
            temperature: None,
            max_steps: DEFAULT_MAX_STEPS,
            instructions: self.inner.config.instructions.clone(),
+            // Populated from models.dev metadata in the follow-up increment.
+            cost: None,
        };

        // Reserve the run slot *before* spawning. If we inserted after spawning, a run that