diff --git a/.config/mise.test.toml b/.config/mise.test.toml
index 7176fab..a97f5ff 100644
--- a/.config/mise.test.toml
+++ b/.config/mise.test.toml
@@ -1,3 +1,4 @@
 # WARNING: This file is autogenerated - changes will be overwritten when regenerated by https://github.com/pulumi/ci-mgmt
 
-# Overrides for test workflows -- currently empty.
+[tools]
+"aqua:gotestyourself/gotestsum" = "1.12.0"
diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
deleted file mode 100644
index 0caa64e..0000000
--- a/.github/workflows/copilot-setup-steps.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: "Copilot Setup Steps"
-
-# This workflow configures the environment for GitHub Copilot Agent with gh-aw MCP server
-on:
-  workflow_dispatch:
-  push:
-    paths:
-      - .github/workflows/copilot-setup-steps.yml
-
-jobs:
-  # The job MUST be called 'copilot-setup-steps' to be recognized by GitHub Copilot Agent
-  copilot-setup-steps:
-    runs-on: ubuntu-latest
-
-    # Set minimal permissions for setup steps
-    # Copilot Agent receives its own token with appropriate permissions
-    permissions:
-      contents: read
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
-      - name: Install gh-aw extension
-        uses: github/gh-aw/actions/setup-cli@v0.56.2
-        with:
-          version: v0.56.2