test(workspace): harden release gate automation

skills/scripts/e2e/agent_run_ledger_policy.py

@@ -0,0 +1,43 @@
+"""Policy helpers for classifying AgentRunner ledger error signals."""
+
+from __future__ import annotations
+
+import json
+
+
+def load_ledger_json(value: str | None, *, field: str, failures: list[dict]) -> object:
+    """Decode persisted ledger JSON and retain corruption as an invariant failure."""
+    if not value:
+        return {}
+    try:
+        return json.loads(value)
+    except (TypeError, ValueError) as exc:
+        failures.append({"kind": "invalid_json", "field": field, "reason": str(exc)})
+        return {}
+
+
+def classify_invalid_tool_argument_errors(
+    events: list[dict],
+    *,
+    successful_tool_completion_sequences: list[int],
+    run_completed: bool,
+) -> tuple[list[dict], list[dict]]:
+    """Split malformed tool arguments into recovered warnings and hard failures."""
+    failures: list[dict] = []
+    warnings: list[dict] = []
+    for event in events:
+        recovered = run_completed and any(
+            sequence > event["sequence"]
+            for sequence in successful_tool_completion_sequences
+        )
+        if recovered:
+            warnings.append(
+                {
+                    "kind": "recovered_tool_argument_error",
+                    "event": event,
+                    "reason": "The model continued with a later successful tool call and the run completed.",
+                }
+            )
+        else:
+            failures.append(event)
+    return failures, warnings