fix(2528): recover userdata workflow paths

Author: artokun

docs/tools/workflow-library.mdx

@@ -36,7 +36,7 @@ Return, list, summarize or query a SAVED workflow FILE — files on disk, named
   Options: `ui`, `api`, `raw`.
 </ParamField>
 <ParamField path="path" type="string">
-  action:"strip" / "slice" / "query" — Absolute server-side path to a workflow .json on disk (e.g. C:\\Users\\you\\ComfyUI\\user\\default\\workflows\\pusa_extend.json). Read directly from disk — no library lookup.
+  action:"strip" / "slice" / "query" — Absolute server-side path to a workflow .json on disk (e.g. C:\\Users\\you\\ComfyUI\\user\\default\\workflows\\pusa_extend.json). Read directly from disk — no library lookup. If a userdata path is missing the `workflows` segment after `user/default`, it is retried with that segment restored, preserving the filename exactly.
 </ParamField>
 <ParamField path="graph" type="object">
   action:"strip" / "slice" / "query" — Inline workflow JSON (UI format for "strip"/"slice"; UI or API for "query"), as an alternative to path/filename.

src/__tests__/tools/get-workflow-userdata-workflows-path.test.ts

@@ -148,6 +148,15 @@ describe("#2528 get_workflow strip keeps the userdata workflows segment", () =>
     expect(mocks.fetchApi).not.toHaveBeenCalled();
   });
 
+  it('action:"strip" also repairs an absolute `filename` from the same userdata tree', async () => {
+    const res = await getHandler()({ action: "strip", filename: droppedFile, format: "raw" });
+
+    expect(res.isError).toBeUndefined();
+    expect(text(res)).not.toMatch(/ENOENT/);
+    expect(JSON.parse(res.content[0]!.text)).toEqual(GRAPH);
+    expect(mocks.fetchApi).not.toHaveBeenCalled();
+  });
+
   it("does not find a hyphen-mangled stand-in when only the em-dash file exists", async () => {
     const mangled = join(
       workspace,

src/tools/workflow-library.ts

@@ -313,7 +313,7 @@ export function registerWorkflowLibraryTools(server: McpServer): void {
         .optional()
         .describe(
           'action:"strip" / "slice" / "query" — Absolute server-side path to a workflow .json on disk (e.g. ' +
-            "C:\\\\Users\\\\you\\\\ComfyUI\\\\user\\\\default\\\\workflows\\\\pusa_extend.json). Read directly from disk — no library lookup.",
+            "C:\\\\Users\\\\you\\\\ComfyUI\\\\user\\\\default\\\\workflows\\\\pusa_extend.json). Read directly from disk — no library lookup. If a userdata path is missing the `workflows` segment after `user/default`, it is retried with that segment restored, preserving the filename exactly.",
         ),
       graph: z
         .record(z.string(), z.any())