diff --git a/.github/workflows/multiservice-discovery-diff.yaml b/.github/workflows/multiservice-discovery-diff.yaml
new file mode 100644
index 000000000..ab90e0bf8
--- /dev/null
+++ b/.github/workflows/multiservice-discovery-diff.yaml
@@ -0,0 +1,66 @@
+name: MSD Diff
+
+on:
+  pull_request:
+    branches:
+      - "main"
+    paths:
+      - 'rs/ic-observability/multiservice-discovery*/src/**'
+
+concurrency: 
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  msd-diff:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+
+      - name: "🔧 Setup runner"
+        uses: ./.github/workflows/manage-runner-pre
+
+      - name: "📥 Download main test artifact"
+        uses: dawidd6/action-download-artifact@v3.0.0
+        with:
+          name: test-artifacts
+          branch: main
+          workflow: main.yaml
+
+      - name: "🔭 Compute MSD"
+        id: msd-diff
+        run: |
+          set -exuo pipefail
+          REGISTRY_DIR_MAIN="$HOME/tmp/main-registry"
+          REGISTRY_DIR_BRANCH="$HOME/tmp/branch-registry"
+          TARGETS_DIR_MAIN="$HOME/main-targets"
+          TARGETS_DIR_BRANCH="$HOME/branch-targets"
+
+          mkdir -p "$REGISTRY_DIR_MAIN" \
+                  "$REGISTRY_DIR_BRANCH" \
+                  "$TARGETS_DIR_MAIN" \
+                  "$TARGETS_DIR_BRANCH"
+          chmod +x multiservice-discovery
+
+          # Run multiservice-discovery for main targets
+          ./multiservice-discovery \
+              --targets-dir "$REGISTRY_DIR_MAIN" \
+              --render-prom-targets-to-stdout > "$TARGETS_DIR_MAIN/targets.json"
+
+          # Run multiservice-discovery for branch targets with bazel
+          bazel run //rs/ic-observability/multiservice-discovery -- \
+              --targets-dir "$REGISTRY_DIR_BRANCH" \
+              --render-prom-targets-to-stdout > "$TARGETS_DIR_BRANCH/targets.json"
+
+          echo "targets_main=$TARGETS_DIR_MAIN" >> $GITHUB_OUTPUT
+          echo "targets_branch=$TARGETS_DIR_BRANCH" >> $GITHUB_OUTPUT
+
+      - name: "Check MSD Diff"
+        uses: "int128/diff-action@v1"
+        with:
+          base: ${{ steps.msd-diff.outputs.targets_main }}
+          head: ${{ steps.msd-diff.outputs.targets_branch }}
+          comment-header: |
+            ## MSD Diff
diff --git a/rs/ic-observability/multiservice-discovery-shared/src/builders/prometheus_config_structure.rs b/rs/ic-observability/multiservice-discovery-shared/src/builders/prometheus_config_structure.rs
index 9199ddb53..50a5b2594 100644
--- a/rs/ic-observability/multiservice-discovery-shared/src/builders/prometheus_config_structure.rs
+++ b/rs/ic-observability/multiservice-discovery-shared/src/builders/prometheus_config_structure.rs
@@ -29,7 +29,7 @@ impl Serialize for PrometheusFileSdConfig {
 #[derive(Debug, Clone)]
 pub struct PrometheusConfigBuilder {}
 
-pub const IC_NAME: &str = "ic";
+pub const IC_NAME: &str = "ic-test-diff";
 pub const IC_NODE: &str = "ic_node";
 pub const IC_SUBNET: &str = "ic_subnet";
 pub const JOB: &str = "job";