diff --git a/agent.py b/agent.py
index 1a37a99..ad6622c 100644
--- a/agent.py
+++ b/agent.py
@@ -906,7 +906,7 @@ class ProductionIncidentCommander(A2AAgent[CommanderConfig, NoAuth]):
         await emit_phase(ctx, "close_or_escalate", status="recovered" if recovered else "escalate")
         return result.model_dump(mode="json")
 
-    @a2a.tool(description="Generate a blameless postmortem from saved incident artifacts", timeout_seconds=300, cost_class="incident-postmortem", grant_mode="read_write_overlay", grant_write_prefixes=("outputs/incidents/",), grant_allow_patterns=("outputs/incidents/**",))
+    @a2a.tool(description="Generate a blameless postmortem from saved incident artifacts", input_schema=POSTMORTEM_INPUT_SCHEMA, timeout_seconds=300, cost_class="incident-postmortem", grant_mode="read_write_overlay", grant_write_prefixes=("outputs/incidents/",), grant_allow_patterns=("outputs/incidents/**",))
     async def generate_postmortem(
         self,
         ctx: RunContext[NoAuth],