diff --git a/samples/checkovAzurePipelines/azure-pipelines.yml b/samples/checkovAzurePipelines/azure-pipelines.yml
new file mode 100644
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+++ b/samples/checkovAzurePipelines/azure-pipelines.yml
@@ -0,0 +1,24 @@
+trigger: none
+
+pool:
+  vmImage: 'ubuntu-latest'
+
+# Fixture for verifying the CKV_AZUREPIPELINES_* severity promotion tracked in
+# issue #164. The job's `container` field is what Checkov's `azure_pipelines`
+# framework inspects, so referencing `ubuntu:latest` here triggers:
+#   - CKV_AZUREPIPELINES_1: container job uses a non-latest version tag
+#   - CKV_AZUREPIPELINES_2: container job uses a version digest (missing @sha256)
+jobs:
+- job: build
+  container: ubuntu:latest
+  steps:
+  - script: echo "Hello from a :latest tagged container"
+
+  - task: MicrosoftSecurityDevOps@1
+    displayName: 'Microsoft Security DevOps'
+    inputs:
+      tools: 'checkov'
+      # Flip between true/false to validate AC4 from issue #164. With default
+      # --min-severity Error, AZUREPIPELINES warnings must not break the build,
+      # so both runs should complete with `succeeded` status.
+      # break: true
diff --git a/samples/checkovAzurePipelines/readme.md b/samples/checkovAzurePipelines/readme.md
new file mode 100644
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+## Introduction
+
+This folder provides a verification fixture for the Checkov `CKV_AZUREPIPELINES_*`
+severity promotion tracked in [issue #164](https://github.com/microsoft/security-devops-azdevops/issues/164)
+(split out from [#163](https://github.com/microsoft/security-devops-azdevops/issues/163)).
+
+The [azure-pipelines.yml](azure-pipelines.yml) in this folder declares a job whose
+`container` field references `ubuntu:latest`. When Checkov (run via the
+`MicrosoftSecurityDevOps@1` task) scans the pipeline file, the `azure_pipelines`
+framework inspects job-level `container` declarations and emits two findings:
+
+* **`CKV_AZUREPIPELINES_1`** — *Ensure container job uses a non latest version tag.*
+  Fires because the tag is `:latest`.
+* **`CKV_AZUREPIPELINES_2`** — *Ensure container job uses a version digest.* Fires
+  because the reference lacks an `@sha256:...` digest.
+
+> **Pending in Guardian:** the actual severity-mapping change that promotes
+> `CKV_AZUREPIPELINES_*` from `note` to `warning` lives in Microsoft's internal
+> Guardian severity-policy and is owned by that team. This fixture exists so the
+> end-to-end behavior can be verified against the public MSDO task output once the
+> internal change ships.
+
+## Contents
+
+* [azure-pipelines.yml](azure-pipelines.yml) — minimal pipeline that triggers
+  `CKV_AZUREPIPELINES_1` and `CKV_AZUREPIPELINES_2` and runs
+  `MicrosoftSecurityDevOps@1` with `tools: 'checkov'`.
+
+## How to run
+
+1. Copy `azure-pipelines.yml` to the root of an Azure DevOps repository (or point an
+   existing pipeline at this file).
+2. Create a pipeline in Azure DevOps that uses this YAML.
+3. Run the pipeline. The MSDO task publishes `msdo.sarif` to the build artifacts
+   under `CodeAnalysisLogs` (on a hosted Linux agent the staged file is at
+   `$(Build.ArtifactStagingDirectory)/.gdn/msdo.sarif`, typically
+   `/home/vsts/work/1/a/.gdn/msdo.sarif`).
+4. Open the **Scans** tab on the build run to see Checkov findings.
+
+## Expected Scans Tab output
+
+Under the `checkov` tool collapse, with the SARIF Scans Tab extension at its default
+severity filter:
+
+* Once the Guardian policy change in issue #164 is deployed, both
+  `CKV_AZUREPIPELINES_1` and `CKV_AZUREPIPELINES_2` appear as **Warning**
+  without the user enabling "Notes".
+* Until then, the same findings are emitted as `note` and are hidden by the default
+  filter — you can verify they are present by enabling "Notes" in the Scans Tab
+  filter, or by inspecting `msdo.sarif` directly with the `jq` commands below.
+
+## Verification commands
+
+Download `msdo.sarif` from the build artifacts (under `CodeAnalysisLogs`) and run the
+following against it. These are the paste-ready snippets from the acceptance criteria
+in [issue #164](https://github.com/microsoft/security-devops-azdevops/issues/164).
+
+**AC1 — Severity in published SARIF.** Every `CKV_AZUREPIPELINES_*` result must be
+`warning`:
+
+```bash
+jq '[.runs[]
+     | select(.tool.driver.name == "checkov")
+     | .results[]
+     | select(.ruleId | startswith("CKV_AZUREPIPELINES_"))
+     | .level] | unique' /home/vsts/work/1/a/.gdn/msdo.sarif
+# Expected: ["warning"]
+```
+
+**AC3 — No regression for other Checkov rules.** Capture the per-rule severity
+histogram and diff against a pre-change baseline. Only `CKV_AZUREPIPELINES_*` rows
+should change from `note` → `warning`:
+
+```bash
+jq '[.runs[]
+     | select(.tool.driver.name == "checkov")
+     | .results[]
+     | {ruleId, level}]
+    | group_by(.ruleId)
+    | map({ruleId: .[0].ruleId, level: .[0].level})' /home/vsts/work/1/a/.gdn/msdo.sarif
+```
+
+**AC4 — Build break unchanged.** Run the pipeline twice — once with `break: true` on
+the `MicrosoftSecurityDevOps@1` task, once with `break: false`. With the default
+`--min-severity Error`, AZUREPIPELINES warnings must not break the build; both runs
+must complete with `succeeded` status.
diff --git a/samples/readme.md b/samples/readme.md
index 6406c9c..65f4b59 100644
--- a/samples/readme.md
+++ b/samples/readme.md
@@ -1 +1,9 @@
 This folder contains samples for DevOps security in Defender for Cloud.
+
+## Contents
+
+* [IaCMapping/](IaCMapping/) — Infrastructure as Code mapping with Terraform and an Azure DevOps pipeline.
+* [trivypipeline/](trivypipeline/) — Azure DevOps pipeline that runs Trivy via `MicrosoftSecurityDevOps@1`.
+* [copilotDemo/](copilotDemo/) — Pipeline and deployment sample used in Copilot demos.
+* [checkovAzurePipelines/](checkovAzurePipelines/) — Verification fixture for the `CKV_AZUREPIPELINES_*` severity promotion (issue #164).
+* [configs/](configs/) — Example `.gdnconfig` files for each supported tool.