Prompt file name cannot contain digits

Author: j3iiifn

src/vs/workbench/contrib/chat/common/chatRequestParser.ts

@@ -16,7 +16,7 @@ import { IPromptsService } from './promptSyntax/service/promptsService.js';
 
 const agentReg = /^@([\w_\-\.]+)(?=(\s|$|\b))/i; // An @-agent
 const variableReg = /^#([\w_\-]+)(:\d+)?(?=(\s|$|\b))/i; // A #-variable with an optional numeric : arg (@response:2)
-const slashReg = /^\/([\p{L}_\-\.:]+)(?=(\s|$|\b))/iu; // A / command
+const slashReg = /^\/([\p{L}\d_\-\.:]+)(?=(\s|$|\b))/iu; // A / command
 
 export interface IChatParserContext {
 	/** Used only as a disambiguator, when the query references an agent that has a duplicate with the same name. */

src/vs/workbench/contrib/chat/test/common/__snapshots__/ChatRequestParser_prompt_slash_command_with_numbers.0.snap

@@ -0,0 +1,33 @@
+{
+  parts: [
+    {
+      range: {
+        start: 0,
+        endExclusive: 11
+      },
+      editorRange: {
+        startLineNumber: 1,
+        startColumn: 1,
+        endLineNumber: 1,
+        endColumn: 12
+      },
+      slashPromptCommand: { command: "001-sample" },
+      kind: "prompt"
+    },
+    {
+      range: {
+        start: 11,
+        endExclusive: 26
+      },
+      editorRange: {
+        startLineNumber: 1,
+        startColumn: 12,
+        endLineNumber: 1,
+        endColumn: 27
+      },
+      text: " this is a test",
+      kind: "text"
+    }
+  ],
+  text: "/001-sample this is a test"
+}

src/vs/workbench/contrib/chat/test/common/chatRequestParser.test.ts

@@ -184,6 +184,25 @@ suite('ChatRequestParser', () => {
 		await assertSnapshot(result);
 	});
 
+	test('prompt slash command with numbers', async () => {
+		const slashCommandService = mockObject<IChatSlashCommandService>()({});
+		slashCommandService.getCommands.returns([{ command: 'fix' }]);
+		instantiationService.stub(IChatSlashCommandService, slashCommandService as any);
+
+		const promptSlashCommandService = mockObject<IPromptsService>()({});
+		promptSlashCommandService.asPromptSlashCommand.callsFake((command: string) => {
+			if (command.match(/^[\w_\-\.]+$/)) {
+				return { command };
+			}
+			return undefined;
+		});
+		instantiationService.stub(IPromptsService, promptSlashCommandService as any);
+
+		parser = instantiationService.createInstance(ChatRequestParser);
+		const text = '/001-sample this is a test';
+		const result = parser.parseChatRequest('1', text);
+		await assertSnapshot(result);
+	});
 
 	// test('variables', async () => {
 	// 	varService.hasVariable.returns(true);