test(rag): skip transformers.js integration tests on Windows CI

CHANGELOG.md

@@ -23,6 +23,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- **Transformers.js integration tests now skip on Windows CI instead of flaking.** `transformers-embedding-provider.integration.test.ts` and the Transformers.js block of `comparison.integration.test.ts` skip on Windows (in addition to skipping when the optional `@xenova/transformers` dependency is absent), matching the existing `onnx-embedding-provider` test. These tests download a model over the network and load the `onnxruntime-node` native backend — both flaky in Windows CI. Such a failure was previously mislabeled `@xenova/transformers is not installed` by an over-broad `catch` in the provider's `loadPipeline` (the package was installed; the model download/inference is what failed), which is also why an availability-only guard did not prevent it.
 - **Config-first skill discovery now honors `..` in `skills.include` patterns.** `vat build`, `vat verify`, and `vat skills validate` all funnel through `discoverSkillsFromConfig`, which previously passed every include pattern to a single downward-only crawl rooted at `projectRoot` — so an include like `"../../docs/skills/*/SKILL.md"` (common in monorepos where SKILL.md sources live alongside, not inside, the package) silently matched zero skills. `vat audit` accepted the same config only because it has a separate filesystem-first walker. Each include pattern is now split into a literal base + glob remainder via `picomatch.scan`, patterns are grouped by their resolved absolute base, and the crawler runs once per base — making config-first discovery agree with audit. User-supplied excludes stay anchored to `projectRoot` so patterns like `docs/private/**` keep their original meaning, and a pattern resolving to a nonexistent base now silently produces zero matches.
 
 ## [0.1.38] - 2026-05-18

packages/rag/test/integration/comparison.integration.test.ts

@@ -30,7 +30,10 @@ const isWindows = process.platform === 'win32';
 // Transformers.js Provider Comparison
 // ---------------------------------------------------------------------------
 
-describe.skipIf(!transformersAvailable)('Transformers.js Provider Comparison', () => {
+// Skip on Windows too: the transformers.js backend (onnxruntime-node native
+// binaries) + network model download are flaky in Windows CI, matching the ONNX
+// provider block below.
+describe.skipIf(!transformersAvailable || isWindows)('Transformers.js Provider Comparison', () => {
   // Lazy import to avoid errors when @xenova/transformers is not installed
   const getProvider = async () => {
     const mod = await import('../../src/embedding-providers/transformers-embedding-provider.js');

packages/rag/test/integration/transformers-embedding-provider.integration.test.ts

@@ -3,6 +3,11 @@
  *
  * Note: These are integration tests that use real transformers.js models.
  * They may download models on first run (~20MB for all-MiniLM-L6-v2).
+ *
+ * Skipped when:
+ * - @xenova/transformers is not installed (it is an optional dependency)
+ * - Running on Windows (the onnxruntime-node native backend + network model
+ *   download are flaky in CI — same reason the onnx provider test skips Windows)
  */
 
 import { describe, it, expect } from 'vitest';
@@ -11,9 +16,21 @@ import { TransformersEmbeddingProvider } from '../../src/embedding-providers/tra
 
 import { assertBatchEmbedding } from './embedding-test-helpers.js';
 
+// Detect optional dependency availability.
+let transformersAvailable = false;
+try {
+  await import('@xenova/transformers');
+  transformersAvailable = true;
+} catch {
+  // @xenova/transformers not installed
+}
+
+const isWindows = process.platform === 'win32';
+const skipTransformers = !transformersAvailable || isWindows;
+
 const DEFAULT_MODEL = 'Xenova/all-MiniLM-L6-v2';
 
-describe('TransformersEmbeddingProvider', () => {
+describe.skipIf(skipTransformers)('TransformersEmbeddingProvider', () => {
   // Use default model for tests
   const provider = new TransformersEmbeddingProvider();
 
@@ -106,7 +123,7 @@ describe('TransformersEmbeddingProvider', () => {
   });
 });
 
-describe('TransformersEmbeddingProvider - Custom Model', () => {
+describe.skipIf(skipTransformers)('TransformersEmbeddingProvider - Custom Model', () => {
   it('should support custom model configuration', async () => {
     const provider = new TransformersEmbeddingProvider({
       model: DEFAULT_MODEL,