diff --git a/platform/minecraft/src/gametest/java/ca/teamdman/sfm/gametest/tests/migrated/UnusedIoWarningMismatchedItemAndFluidResourceKindsGameTest.java b/platform/minecraft/src/gametest/java/ca/teamdman/sfm/gametest/tests/migrated/UnusedIoWarningMismatchedItemAndFluidResourceKindsGameTest.java
new file mode 100644
index 000000000..e2a5c990c
--- /dev/null
+++ b/platform/minecraft/src/gametest/java/ca/teamdman/sfm/gametest/tests/migrated/UnusedIoWarningMismatchedItemAndFluidResourceKindsGameTest.java
@@ -0,0 +1,95 @@
+package ca.teamdman.sfm.gametest.tests.migrated;
+
+import ca.teamdman.sfm.common.blockentity.ManagerBlockEntity;
+import ca.teamdman.sfm.common.item.DiskItem;
+import ca.teamdman.sfm.common.label.LabelPositionHolder;
+import ca.teamdman.sfm.common.program.linting.GatherWarningsProgramBehaviour;
+import ca.teamdman.sfm.common.registry.registration.SFMBlocks;
+import ca.teamdman.sfm.common.registry.registration.SFMItems;
+import ca.teamdman.sfm.gametest.SFMGameTest;
+import ca.teamdman.sfm.gametest.SFMGameTestDefinition;
+import ca.teamdman.sfm.gametest.SFMGameTestHelper;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.contents.TranslatableContents;
+import net.minecraft.world.item.ItemStack;
+
+import java.util.Objects;
+
+/**
+ * Ensures mismatched default item output and fluid input produce both warning types.
+ */
+@SuppressWarnings({
+        "RedundantSuppression",
+        "DataFlowIssue",
+        "OptionalGetWithoutIsPresent",
+        "DuplicatedCode",
+        "ArraysAsListWithZeroOrOneArgument"
+})
+@SFMGameTest
+public class UnusedIoWarningMismatchedItemAndFluidResourceKindsGameTest extends SFMGameTestDefinition {
+
+    @Override
+    public String template() {
+
+        return "3x2x1";
+    }
+
+    @Override
+    public String batchName() {
+
+        return "linting";
+    }
+
+    @Override
+    public void run(SFMGameTestHelper helper) {
+        helper.setBlock(new BlockPos(1, 2, 0), SFMBlocks.MANAGER.get());
+        BlockPos leftPos = new BlockPos(2, 2, 0);
+        helper.setBlock(leftPos, SFMBlocks.TEST_BARREL.get());
+
+        ManagerBlockEntity manager = helper.getBlockEntity(new BlockPos(1, 2, 0), ManagerBlockEntity.class);
+        manager.setItem(0, new ItemStack(SFMItems.DISK.get()));
+        LabelPositionHolder.empty()
+                .add("left", helper.absolutePos(leftPos))
+                .save(Objects.requireNonNull(manager.getDisk()));
+        manager.setProgram("""
+                                       EVERY 20 TICKS DO
+                                           INPUT fluid:: FROM left
+                                           OUTPUT TO left
+                                       END
+                                   """.stripTrailing().stripIndent());
+        helper.assertManagerRunning(manager);
+
+        var warnings = DiskItem.getWarnings(Objects.requireNonNull(manager.getDisk()));
+        helper.assertTrue(warnings.size() == 2, "expected 2 warnings, got " + warnings.size());
+
+        String outputKey = GatherWarningsProgramBehaviour.PROGRAM_WARNING_OUTPUT_RESOURCE_TYPE_NOT_FOUND_IN_INPUTS
+                .key()
+                .get();
+        String inputKey = GatherWarningsProgramBehaviour.PROGRAM_WARNING_UNUSED_INPUT_LABEL.key().get();
+
+        boolean foundOutputMismatch = false;
+        boolean foundUnusedFluidInput = false;
+
+        for (TranslatableContents warning : warnings) {
+            if (warning.getKey().equals(outputKey)
+                && warning.getArgs().length >= 3
+                && warning.getArgs()[0].equals("OUTPUT TO left")
+                && warning.getArgs()[2].equals("sfm:item")) {
+                foundOutputMismatch = true;
+            }
+            if (warning.getKey().equals(inputKey)
+                && warning.getArgs().length >= 5
+                && warning.getArgs()[0].equals("INPUT fluid:: FROM left")
+                && warning.getArgs()[2].equals("sfm:fluid")
+                && warning.getArgs()[3].equals("left")
+                && warning.getArgs()[4].equals("sfm:fluid")) {
+                foundUnusedFluidInput = true;
+            }
+        }
+
+        helper.assertTrue(foundOutputMismatch, "expected warning for output item without item input");
+        helper.assertTrue(foundUnusedFluidInput, "expected warning for input fluid without fluid output");
+
+        helper.succeed();
+    }
+}