diff --git a/src/vs/workbench/contrib/chat/common/promptSyntax/languageProviders/promptValidator.ts b/src/vs/workbench/contrib/chat/common/promptSyntax/languageProviders/promptValidator.ts
index 7d05dd9ff61..daf123f3151 100644
--- a/src/vs/workbench/contrib/chat/common/promptSyntax/languageProviders/promptValidator.ts
+++ b/src/vs/workbench/contrib/chat/common/promptSyntax/languageProviders/promptValidator.ts
@@ -23,7 +23,7 @@ import { ResourceMap } from '../../../../../../base/common/map.js';
 import { IFileService } from '../../../../../../platform/files/common/files.js';
 import { IPromptsService, Target } from '../service/promptsService.js';
 import { ILabelService } from '../../../../../../platform/label/common/label.js';
-import { AGENTS_SOURCE_FOLDER, isInClaudeAgentsFolder, isInClaudeRulesFolder, isInCopilotAgentsFolder, LEGACY_MODE_FILE_EXTENSION } from '../config/promptFileLocations.js';
+import { AGENTS_SOURCE_FOLDER, isInClaudeAgentsFolder, isInClaudeRulesFolder, LEGACY_MODE_FILE_EXTENSION } from '../config/promptFileLocations.js';
 import { Lazy } from '../../../../../../base/common/lazy.js';
 import { CancellationToken } from '../../../../../../base/common/cancellation.js';
 import { URI } from '../../../../../../base/common/uri.js';
@@ -1025,9 +1025,6 @@ export function getTarget(promptType: PromptsType, header: PromptHeader | URI):
 		if (isInClaudeAgentsFolder(uri)) {
 			return Target.Claude;
 		}
-		if (isInCopilotAgentsFolder(uri)) {
-			return Target.GitHubCopilot;
-		}
 		if (!(header instanceof URI)) {
 			const target = header.target;
 			if (target === Target.GitHubCopilot || target === Target.VSCode) {
diff --git a/src/vs/workbench/contrib/chat/test/common/promptSyntax/service/promptsService.test.ts b/src/vs/workbench/contrib/chat/test/common/promptSyntax/service/promptsService.test.ts
index 0f3e39807db..d77772465b4 100644
--- a/src/vs/workbench/contrib/chat/test/common/promptSyntax/service/promptsService.test.ts
+++ b/src/vs/workbench/contrib/chat/test/common/promptSyntax/service/promptsService.test.ts
@@ -1177,55 +1177,6 @@ suite('PromptsService', () => {
 			);
 		});
 
-		test('copilot user agents from ~/.copilot/agents/ should have GitHubCopilot target', async () => {
-			const rootFolderName = 'copilot-user-agents';
-			const rootFolder = `/${rootFolderName}`;
-			const rootFolderUri = URI.file(rootFolder);
-
-			workspaceContextService.setWorkspace(testWorkspace(rootFolderUri));
-
-			await mockFiles(fileService, [
-				{
-					// Copilot user agent in ~/.copilot/agents/ (resolved from /home/user/.copilot/agents/)
-					path: '/home/user/.copilot/agents/copilot-user-agent.md',
-					contents: [
-						'---',
-						'description: \'Copilot user agent from home folder.\'',
-						'tools: [ read ]',
-						'---',
-						'I am a Copilot user agent.',
-					]
-				},
-			]);
-
-			const result = (await service.getCustomAgents(CancellationToken.None)).map(agent => ({ ...agent, uri: URI.from(agent.uri) }));
-			const expected: ICustomAgent[] = [
-				{
-					name: 'copilot-user-agent',
-					description: 'Copilot user agent from home folder.',
-					target: Target.GitHubCopilot,
-					tools: ['read'],
-					agentInstructions: {
-						content: 'I am a Copilot user agent.',
-						toolReferences: [],
-						metadata: undefined
-					},
-					handOffs: undefined,
-					model: undefined,
-					argumentHint: undefined,
-					visibility: { userInvocable: true, agentInvocable: true },
-					agents: undefined,
-					uri: URI.file('/home/user/.copilot/agents/copilot-user-agent.md'),
-					source: { storage: PromptsStorage.user }
-				},
-			];
-
-			assert.deepEqual(
-				result,
-				expected,
-				'Agents from ~/.copilot/agents/ must have Target.GitHubCopilot.',
-			);
-		});
 
 		test('agents with .md extension should be recognized, except README.md', async () => {
 			const rootFolderName = 'custom-agents-md-extension';