convert to absolute urls if needed

Author: evalstate

packages/mcp/src/docs-search/doc-fetch.test.ts

@@ -120,13 +120,42 @@ describe('DocFetchTool', () => {
 				{ in: 'https://gradio.app/guides/x', out: 'https://www.gradio.app/guides/x' },
 				{ in: 'https://www.gradio.app/guides/x', out: 'https://www.gradio.app/guides/x' },
 				{ in: 'https://huggingface.co/docs/transformers', out: 'https://huggingface.co/docs/transformers' },
+				{ in: '/docs/diffusers/index', out: 'https://huggingface.co/docs/diffusers/index' },
+				{ in: './docs/diffusers/index', out: 'https://huggingface.co/docs/diffusers/index' },
 				{ in: 'not a url', out: 'not a url' },
 			];
 			for (const c of cases) {
 				expect(normalizeDocUrl(c.in)).toBe(c.out);
 			}
 		});
 
+		it('normalizes relative doc paths to the huggingface docs host', async () => {
+			const fetchMock = stubFetch(() =>
+				createMockResponse({
+					content: '<h1>Title</h1><p>Body</p>',
+				}),
+			);
+
+			const result = await tool.fetch({ doc_url: '/docs/test' });
+			expect(fetchMock).toHaveBeenCalledWith('https://huggingface.co/docs/test', {
+				headers: { accept: 'text/markdown' },
+			});
+			expect(result).toContain('# Title');
+		});
+
+		it('normalizes ./docs paths to the huggingface docs host', async () => {
+			const fetchMock = stubFetch(() =>
+				createMockResponse({
+					content: '<h1>Another Title</h1><p>Body</p>',
+				}),
+			);
+
+			await tool.fetch({ doc_url: './docs/another' });
+			expect(fetchMock).toHaveBeenCalledWith('https://huggingface.co/docs/another', {
+				headers: { accept: 'text/markdown' },
+			});
+		});
+
 		it('should return subsequent chunks with offset', async () => {
 			// Mock fetch to return the same long HTML
 			const longHtml = '<h1>Long Document</h1>' + '<p>This is a very long sentence that will be repeated many times to create a document that exceeds the 7500 token limit for testing chunking functionality.</p>'.repeat(200);

packages/mcp/src/docs-search/doc-fetch.ts

@@ -222,13 +222,21 @@ export class DocFetchTool {
  */
 export function normalizeDocUrl(input: string): string {
 	try {
-		const url = new URL(input);
+		const trimmed = input.trim();
+		if (trimmed.startsWith('/docs')) {
+			return `https://huggingface.co${trimmed}`;
+		}
+		if (trimmed.startsWith('./docs')) {
+			return `https://huggingface.co/${trimmed.slice(2)}`;
+		}
+
+		const url = new URL(trimmed);
 		const host = url.hostname.toLowerCase();
 		if (host === 'gradio.app') {
 			url.hostname = 'www.gradio.app';
 			return url.toString();
 		}
-		return input;
+		return trimmed;
 	} catch {
 		return input;
 	}