diff --git a/src/specify_cli/bundles/manifest.py b/src/specify_cli/bundles/manifest.py
index 4476cb5856..dec18f5377 100644
--- a/src/specify_cli/bundles/manifest.py
+++ b/src/specify_cli/bundles/manifest.py
@@ -145,8 +145,19 @@ def from_dict(cls, data: Any) -> BundleManifest:
         # leaving the bundle wrongly integration-agnostic. Reject it instead.
         if integration_raw is not None and not isinstance(integration_raw, dict):
             raise BundlerError("'integration' must be a mapping when present.")
-        if isinstance(integration_raw, dict) and integration_raw.get("id"):
-            integration = IntegrationRef(id=str(integration_raw["id"]).strip())
+        if isinstance(integration_raw, dict):
+            # A mapping without a usable id was silently mishandled: a
+            # missing or empty id fell through to integration=None (the
+            # declared integration was dropped and the bundle validated as
+            # integration-agnostic), while a whitespace-only id passed the
+            # old truthiness check and became IntegrationRef(id="").
+            # Reject all three instead.
+            integration_id = _text(integration_raw.get("id"))
+            if not integration_id:
+                raise BundlerError(
+                    "'integration' mapping must include a non-empty 'id'."
+                )
+            integration = IntegrationRef(id=integration_id)
 
         provides = data.get("provides")
         if provides is None:
diff --git a/tests/specify_cli/bundles/test_command_validate.py b/tests/specify_cli/bundles/test_command_validate.py
index 3674fb4388..1d39dfa2a2 100644
--- a/tests/specify_cli/bundles/test_command_validate.py
+++ b/tests/specify_cli/bundles/test_command_validate.py
@@ -125,6 +125,17 @@ def test_validate_reports_invalid_manifest(project: Path):
     assert "license" in result.output
 
 
+@pytest.mark.parametrize("bad_integration", [{}, {"name": "claude"}])
+def test_validate_rejects_integration_mapping_without_id(
+    project: Path, bad_integration
+):
+    data = valid_manifest_dict(integration=bad_integration)
+    (project / "bundle.yml").write_text(yaml.safe_dump(data), encoding="utf-8")
+    result = runner.invoke(app, ["bundle", "validate", "--offline"])
+    assert result.exit_code == 1
+    assert "integration" in result.output
+
+
 @pytest.mark.parametrize("version", ["1.2.0", "1.20.30-12alpha.1+build.01", "V10.20.30"])
 def test_validate_accepts_valid_manifest(project: Path, version: str):
     data = valid_manifest_dict()
diff --git a/tests/specify_cli/bundles/test_manifest.py b/tests/specify_cli/bundles/test_manifest.py
index 6341cc92f4..8d60a6e1ed 100644
--- a/tests/specify_cli/bundles/test_manifest.py
+++ b/tests/specify_cli/bundles/test_manifest.py
@@ -230,3 +230,28 @@ def test_non_list_bundles_rejected(bundles):
 def test_non_mapping_bundle_entry_rejected(entry):
     with pytest.raises(BundlerError, match=r"provides\.bundles entry must be a mapping"):
         _manifest(reference_manifest_dict([entry]))
+
+
+@pytest.mark.parametrize(
+    "bad_integration",
+    [{}, {"name": "claude"}, {"id": ""}, {"id": "   "}, {"id": None}],
+)
+def test_integration_mapping_without_usable_id_rejected(bad_integration):
+    data = valid_manifest_dict(integration=bad_integration)
+    with pytest.raises(
+        BundlerError, match="'integration' mapping must include a non-empty 'id'"
+    ):
+        _manifest(data)
+
+
+def test_integration_mapping_with_id_accepted_and_stripped():
+    manifest = _manifest(valid_manifest_dict(integration={"id": " claude "}))
+    assert manifest.integration is not None
+    assert manifest.integration.id == "claude"
+    assert not manifest.is_agnostic()
+
+
+def test_absent_integration_stays_agnostic():
+    manifest = _manifest(valid_manifest_dict())
+    assert manifest.integration is None
+    assert manifest.is_agnostic()