Add google_vertex_ai_agent_anomaly_detection_scope resource (beta)

[jiany18-qd]

Adds a new beta Terraform resource for Vertex AI Agent Anomaly Detection (AAD) scope (google_vertex_ai_agent_anomaly_detection_scope).

An AAD scope defines the Cloud Logging and Observability buckets that AAD monitors for anomalous agent behavior in a given location. Creating a scope provisions a dedicated tenant project for detection.

• Create/Delete are async (LRO)
• All configurable fields are immutable (no public Update method)
• Read via standard GET
• Only one scope per location

This is part of the AAD GA launch compliance (b/527074080). The v1 proto surface was promoted in cl/946753365; this resource targets google-beta (v1beta1) first, to be promoted to google (v1) at GA.

`google_vertex_ai_agent_anomaly_detection_scope`

[github-actions]

Googlers: For automatic test runs see go/terraform-auto-test-runs.

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit eb61b7e:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	1 file changed, 178 insertions(+)
google-beta provider	View Diff	5 files changed, 1129 insertions(+)
terraform-google-conversion	View Diff	1 file changed, 145 insertions(+)

Missing service labels

The following new resources do not have corresponding service labels:

• google_vertex_ai_agent_anomaly_detection_scope

If you believe this detection to be incorrect please raise the concern with your reviewer. Googlers: This error is safe to ignore once you've completed go/fix-missing-service-labels.
An override-missing-service-label label can be added to allow merging.

Test report

Analytics

Total Tests	Passed	Skipped	Affected
104	98	5	1

Affected Service Packages

• vertexai

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Step 1: Replaying Mode

Action taken

Found 1 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit.

Click here to see the affected tests

• TestAccVertexAIAgentAnomalyDetectionScope_vertexAiAgentAnomalyDetectionScopeBasicExample

View the replaying VCR build log

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Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
❌ Error · Log	-	TestAccVertexAIAgentAnomalyDetectionScope_vertexAiAgentAnomalyDetectionScopeBasicExample

Caution

Issues requiring attention before PR completion

🔴 Initial Recording Failed: Some tests failed during the recording step. See the table above for details.

Please address these issues to complete your PR. If you believe these detections are incorrect or unrelated to your change, please raise the concern with your reviewer.

View the recording VCR build log or the debug logs folder for detailed results.

@jiany18-qd, @shuyama1 VCR tests complete for eb61b7e!