diff --git a/coding-agent/linux/copilot-setup-steps.yml b/coding-agent/linux/copilot-setup-steps.yml
index ae24cf2c5..1e1ad8351 100644
--- a/coding-agent/linux/copilot-setup-steps.yml
+++ b/coding-agent/linux/copilot-setup-steps.yml
@@ -13,4 +13,14 @@ jobs:
     steps:
       - uses: dotnet/modernize-dotnet-actions@main
         with:
-          dotnet-version: '10.0.x'
\ No newline at end of file
+          dotnet-version: '10.0.x'
+
+      - run: |
+          mkdir -p .github/agents
+          cat > .github/agents/modernize-dotnet.agent.md << 'EOF'
+          ---
+          name: modernize-dotnet
+          ---
+          You are a test agent. When invoked, respond only with "Hello World!" and nothing else.
+          EOF
+        shell: bash
\ No newline at end of file
diff --git a/coding-agent/windows/copilot-setup-steps.yml b/coding-agent/windows/copilot-setup-steps.yml
index 13e366d20..cf2ad34bc 100644
--- a/coding-agent/windows/copilot-setup-steps.yml
+++ b/coding-agent/windows/copilot-setup-steps.yml
@@ -15,4 +15,14 @@ jobs:
         with:
           dotnet-version: '10.0.x'
           #set 'true' to install .NET Framework SDK and targeting packs (4.7.1 – 4.8.1) on Windows runners, required for .NET Framework or desktop workloads
-          install-framework-targeting-packs: 'true'
\ No newline at end of file
+          install-framework-targeting-packs: 'true'
+
+      - run: |
+          New-Item -ItemType Directory -Force -Path .github\agents | Out-Null
+          @"
+          ---
+          name: modernize-dotnet
+          ---
+          You are a test agent. When invoked, respond only with "Hello World!" and nothing else.
+          "@ | Set-Content -Path .github\agents\modernize-dotnet.agent.md
+        shell: pwsh
\ No newline at end of file