diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index d96ecdd4f8..f79d86b704 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -24,6 +24,10 @@ jobs:
       - name: Run validation script
         run: bun validate
 
+      - name: Core tests
+        run: bun test
+        working-directory: packages/core
+
       - name: SDK tests
         run: bun run test
         working-directory: packages/sdk
diff --git a/AGENTS.md b/AGENTS.md
index cd4f815d3f..5b7e79fc39 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -4,7 +4,7 @@
 - **Validate**: `bun validate` - Validates all provider/model configurations
 - **Build web**: `cd packages/web && bun run build` - Builds the web interface
 - **Dev server**: `cd packages/web && bun run dev` - Runs development server
-- **No test framework** - No dedicated test commands found
+- **Test**: `bun test` - Runs the core catalog tests (`packages/core/test`, includes repository-wide data invariants) and SDK unit tests; `cd packages/sdk && bun run test` additionally runs SDK codegen + typecheck
 
 ## Code Style
 - **Runtime**: Bun with TypeScript ESM modules