diff --git a/agent.py b/agent.py
index 3a52e87..1914635 100644
--- a/agent.py
+++ b/agent.py
@@ -310,7 +310,7 @@ class ContractFixture(StrictModel):
 
     @field_validator("payload")
     @classmethod
-    def _bounded_payload(cls, value: dict[str, Any]) -> dict[str, Any]:
+    def _bounded_payload(cls, value: dict[str, Any]) -> Any:
         _ensure_bounded_json(value, MAX_JSON_BYTES)
         return value
 
@@ -325,7 +325,7 @@ class ContractArtifact(StrictModel):
 
     @field_validator("schema_doc")
     @classmethod
-    def _bounded_schema(cls, value: dict[str, Any]) -> dict[str, Any]:
+    def _bounded_schema(cls, value: dict[str, Any]) -> Any:
         _ensure_bounded_json(value, MAX_JSON_BYTES)
         return value
 
@@ -484,7 +484,7 @@ class CustomerIntegrationEngineer(A2AAgent[CustomerIntegrationEngineerConfig, No
     )
 
     @a2a.tool(description="Capture requirements, produce architecture and field mapping artifacts", input_schema=_DESIGN_INPUT_SCHEMA, timeout_seconds=120, idempotent=True, max_retries=0, cost_class="deterministic", grant_outputs_prefix="outputs", grant_write_prefixes=("outputs/integrations",))
-    async def design_integration(self, ctx: RunContext[NoAuth], request: DesignIntegrationRequest) -> dict[str, Any]:
+    async def design_integration(self, ctx: RunContext[NoAuth], request: DesignIntegrationRequest) -> Any:
         req = request.requirements.model_copy(
             update={"dry_run": _effective_dry_run(self, request.dry_run, request.requirements.dry_run)}
         )
@@ -863,7 +863,7 @@ def _required_setup(req: IntegrationRequirements) -> list[str]:
     return sorted(setup)
 
 
-def _build_mapping(req: IntegrationRequirements) -> dict[str, Any]:
+def _build_mapping(req: IntegrationRequirements) -> Any:
     return {
         "integration_id": req.integration_id,
         "title": req.title,