validate type

Author: alexanderkirtzel

.changeset/fix-validate-output-type.md

@@ -0,0 +1,6 @@
+---
+'@walkeros/mcp': patch
+---
+
+Fix validate output schema rejecting dot-notation types like
+destinations.snowplow

packages/mcp/src/__tests__/tools/output-schemas.test.ts

@@ -68,10 +68,43 @@ describe('output schemas', () => {
       expect(result.success).toBe(true);
     });
 
-    it('rejects invalid type enum', () => {
+    it('accepts dot-notation destination type', () => {
       const result = parseShape(ValidateOutputShape, {
         valid: true,
-        type: 'invalid',
+        type: 'destinations.snowplow',
+        errors: [],
+        warnings: [],
+        details: {},
+      });
+      expect(result.success).toBe(true);
+    });
+
+    it('accepts dot-notation source type', () => {
+      const result = parseShape(ValidateOutputShape, {
+        valid: true,
+        type: 'sources.datalayer',
+        errors: [],
+        warnings: [],
+        details: {},
+      });
+      expect(result.success).toBe(true);
+    });
+
+    it('accepts dot-notation transformer type', () => {
+      const result = parseShape(ValidateOutputShape, {
+        valid: true,
+        type: 'transformers.router',
+        errors: [],
+        warnings: [],
+        details: {},
+      });
+      expect(result.success).toBe(true);
+    });
+
+    it('rejects invalid type', () => {
+      const result = parseShape(ValidateOutputShape, {
+        valid: true,
+        type: 'invalid.foo.bar',
         errors: [],
         warnings: [],
         details: {},

packages/mcp/src/schemas/output.ts

@@ -13,7 +13,12 @@ export const ErrorOutputShape = {
 // CLI tool output shapes
 export const ValidateOutputShape = {
   valid: z.boolean().describe('Whether validation passed'),
-  type: z.enum(['event', 'flow', 'mapping']).describe('What was validated'),
+  type: z
+    .union([
+      z.enum(['event', 'flow', 'mapping']),
+      z.string().regex(/^(destinations|sources|transformers)\.\w+$/),
+    ])
+    .describe('What was validated'),
   errors: z
     .array(
       z.object({