diff --git a/agent.py b/agent.py
index 79c4c62..59cfb4f 100644
--- a/agent.py
+++ b/agent.py
@@ -524,7 +524,7 @@ class CustomerIntegrationEngineer(A2AAgent[CustomerIntegrationEngineerConfig, No
         )
 
     @a2a.tool(description="Validate OpenAPI, JSON Schema, and webhook contracts with deterministic fixtures", input_schema=_PUBLIC_REQUEST_SCHEMA, timeout_seconds=120, idempotent=True, max_retries=0, cost_class="deterministic")
-    async def validate_contract(self, ctx: RunContext[NoAuth], request: ValidateContractRequest) -> Any:
+    async def validate_contract(self, ctx: RunContext[NoAuth], request: ValidateContractRequest) -> ValidateContractResult:
         dry_run = _effective_dry_run(self, request.dry_run)
         audit = [_audit("contract_validation_started", request.integration_id, {"contracts": len(request.contracts), "dry_run": dry_run})]
         await _emit(ctx, audit[-1])
@@ -622,7 +622,7 @@ class CustomerIntegrationEngineer(A2AAgent[CustomerIntegrationEngineerConfig, No
         )
 
     @a2a.tool(description="Prepare rollout, rollback, monitoring, and operator handoff documentation with approval-gated delivery planning", input_schema=_PUBLIC_REQUEST_SCHEMA, timeout_seconds=120, idempotent=True, max_retries=0, cost_class="deterministic")
-    async def prepare_handoff(self, ctx: RunContext[NoAuth], request: PrepareHandoffRequest) -> PrepareHandoffResult:
+    async def prepare_handoff(self, ctx: RunContext[NoAuth], request: PrepareHandoffRequest) -> Any:
         dry_run = _effective_dry_run(self, request.dry_run)
         audit = [_audit("handoff_started", request.integration_id, {"dry_run": dry_run, "delivery_actions": len(request.delivery_actions)})]
         await _emit(ctx, audit[-1])