fix(openclaw): normalize Windows skill-loader URLs before fileURLToPath (#5679)

integrations/openclaw/skill-loader.test.ts

@@ -4,10 +4,12 @@
 import { describe, it, expect } from "vitest";
 import {
   safePath,
+  normalizeModuleUrlToPath,
   loadSkill,
   loadTriagePrompt,
   loadCompactTriagePrompt,
 } from "./skill-loader.ts";
+import { fileURLToPath, pathToFileURL } from "node:url";
 
 // ---------------------------------------------------------------------------
 // safePath — path containment
@@ -74,6 +76,31 @@ describe("loadSkill path traversal", () => {
   });
 });
 
+describe("normalizeModuleUrlToPath", () => {
+  it("normalizes raw Windows paths before fileURLToPath conversion", () => {
+    const rawWindowsMetaUrl = "C:\\Users\\example\\openclaw\\index.ts";
+    const result = normalizeModuleUrlToPath(rawWindowsMetaUrl);
+    // Assert the decoded property directly rather than reconstructing via the function body
+    expect(typeof result).toBe("string");
+    expect(result).not.toContain("%5C");
+  });
+
+  it("leaves already-correct file URLs unchanged", () => {
+    const fileMetaUrl = "file:///C:/Users/example/openclaw/index.ts";
+    const expected = fileURLToPath(fileMetaUrl);
+
+    expect(normalizeModuleUrlToPath(fileMetaUrl)).toBe(expected);
+  });
+
+  it.skipIf(process.platform === "win32")(
+    "passes POSIX absolute paths through unchanged",
+    () => {
+      const posixPath = "/home/user/openclaw/index.ts";
+      expect(normalizeModuleUrlToPath(posixPath)).toBe(posixPath);
+    },
+  );
+});
+
 describe("loadCompactTriagePrompt", () => {
   it("keeps the core triage instructions without inlining the full skill body", () => {
     const prompt = loadCompactTriagePrompt();

integrations/openclaw/skill-loader.ts

@@ -4,7 +4,7 @@
  */
 
 import * as path from "node:path";
-import { fileURLToPath } from "node:url";
+import { fileURLToPath, pathToFileURL } from "node:url";
 import type { SkillsConfig, CategoryConfig } from "./types.ts";
 import { readText, exists } from "./fs-safe.ts";
 
@@ -84,6 +84,14 @@ function parseSkillFile(content: string): ParsedSkill {
   };
 }
 
+/** @internal — exported for testing only */
+export function normalizeModuleUrlToPath(moduleUrl: string): string {
+  const normalizedUrl = moduleUrl.startsWith("file:")
+    ? moduleUrl
+    : pathToFileURL(moduleUrl).toString();
+  return fileURLToPath(normalizedUrl);
+}
+
 // ============================================================================
 // Skill Loader
 // ============================================================================
@@ -96,7 +104,7 @@ function resolveSkillsDir(): string {
 
   // Strategy 1: import.meta.url (works in native ESM)
   try {
-    const metaDir = path.dirname(fileURLToPath(import.meta.url));
+    const metaDir = path.dirname(normalizeModuleUrlToPath(import.meta.url));
     candidates.push(path.join(metaDir, "skills"));
     candidates.push(path.join(metaDir, "..", "skills"));
   } catch {