Reduce machine max MCP response size

rollcalc_mcp_tools.py

@@ -69,8 +69,8 @@ def calculate_machine_max_product_length_result(
     product_width_m: float | None = None,
     area_weight_g_m2: float | None = None,
 ) -> dict[str, Any]:
-    """Delegate machine-aware maximum product length to the shared domain."""
-    return calculate_machine_max_product_length(
+    """Return the compact MCP view of the machine-aware domain calculation."""
+    result = calculate_machine_max_product_length(
         machine=machine,
         core_diameter_mm=core_diameter_mm,
         thickness_mm=thickness_mm,
@@ -78,6 +78,35 @@ def calculate_machine_max_product_length_result(
         product_width_m=product_width_m,
         area_weight_g_m2=area_weight_g_m2,
     )
+    return project_machine_max_product_length_result(result)
+
+
+def project_machine_max_product_length_result(result: dict[str, Any]) -> dict[str, Any]:
+    """Project successful maximum-length results for MCP without diagnostics.
+
+    The shared domain result deliberately contains detailed verification reports.
+    They remain available to Flask and other consumers, but duplicate machine
+    metadata and checks are unnecessary in the MCP response.
+    """
+    if result.get("status") != "success":
+        return result
+
+    machine = result["machine"]
+    constraints = machine["constraints"]
+    return {
+        "status": result["status"],
+        "machine": {"id": machine["id"], "name": machine["name"]},
+        "weight_scope": result["weight_scope"],
+        "machine_limits": {
+            "maximum_roll_diameter_mm": constraints["roll_diameter_mm"]["maximum"]
+            if constraints["roll_diameter_mm"] is not None else None,
+            "maximum_material_roll_weight_kg": constraints["roll_weight_kg"]["maximum"]
+            if constraints["roll_weight_kg"] is not None else None,
+        },
+        "production_maximums": result["production_maximums"],
+        "material_weights_kg": result["material_weights_kg"],
+        "warnings": result["warnings"],
+    }
 
 
 def calculate_material_weight_result(