feat: add desktop notifications and skills updates

server/modules/providers/provider.routes.ts

@@ -430,6 +430,17 @@ router.post(
   }),
 );
 
+router.delete(
+  '/:provider/skills/:directoryName',
+  asyncHandler(async (req: Request, res: Response) => {
+    const provider = parseProvider(req.params.provider);
+    const result = await providerSkillsService.removeProviderSkill(provider, {
+      directoryName: readPathParam(req.params.directoryName, 'directoryName'),
+    });
+    res.json(createApiSuccessResponse(result));
+  }),
+);
+
 // ----------------- MCP routes -----------------
 router.get(
   '/:provider/mcp/servers',

server/modules/providers/services/skills.service.ts

@@ -3,6 +3,7 @@ import type {
   ProviderSkill,
   ProviderSkillCreateInput,
   ProviderSkillListOptions,
+  ProviderSkillRemoveInput,
 } from '@/shared/types.js';
 
 export const providerSkillsService = {
@@ -27,4 +28,12 @@ export const providerSkillsService = {
     const provider = providerRegistry.resolveProvider(providerName);
     return provider.skills.addSkills(input);
   },
+
+  async removeProviderSkill(
+    providerName: string,
+    input: ProviderSkillRemoveInput,
+  ): Promise<{ removed: boolean; provider: string; directoryName: string }> {
+    const provider = providerRegistry.resolveProvider(providerName);
+    return provider.skills.removeSkill(input);
+  },
 };

server/modules/providers/shared/skills/skills.provider.ts

@@ -1,10 +1,11 @@
 import path from 'node:path';
-import { mkdir, rm, writeFile } from 'node:fs/promises';
+import { mkdir, rm, stat, writeFile } from 'node:fs/promises';
 
 import type { IProviderSkills } from '@/shared/interfaces.js';
 import type {
   LLMProvider,
   ProviderSkillCreateInput,
+  ProviderSkillRemoveInput,
   ProviderSkill,
   ProviderSkillListOptions,
   ProviderSkillSource,
@@ -236,6 +237,48 @@ export abstract class SkillsProvider implements IProviderSkills {
     return pendingInstalls.map((install) => install.skill);
   }
 
+  async removeSkill(
+    input: ProviderSkillRemoveInput,
+  ): Promise<{ removed: boolean; provider: LLMProvider; directoryName: string }> {
+    const globalSkillSource = await this.getGlobalSkillSource();
+    if (!globalSkillSource) {
+      throw new AppError(`${this.provider} does not support managed global skills.`, {
+        code: 'PROVIDER_SKILLS_WRITE_UNSUPPORTED',
+        statusCode: 400,
+      });
+    }
+
+    const directoryName = normalizeSkillDirectoryName(input.directoryName);
+    if (!directoryName) {
+      throw new AppError('Skill directoryName is required.', {
+        code: 'PROVIDER_SKILL_DIRECTORY_REQUIRED',
+        statusCode: 400,
+      });
+    }
+
+    const skillDirectoryPath = path.join(globalSkillSource.rootDir, directoryName);
+    const resolvedRoot = path.resolve(globalSkillSource.rootDir);
+    const resolvedSkillDirectoryPath = path.resolve(skillDirectoryPath);
+    if (
+      resolvedSkillDirectoryPath !== resolvedRoot
+      && !resolvedSkillDirectoryPath.startsWith(`${resolvedRoot}${path.sep}`)
+    ) {
+      throw new AppError('Skill directory must stay inside the managed skill root.', {
+        code: 'PROVIDER_SKILL_DIRECTORY_INVALID',
+        statusCode: 400,
+      });
+    }
+
+    const removed = await stat(resolvedSkillDirectoryPath)
+      .then((stats) => stats.isDirectory())
+      .catch(() => false);
+    if (removed) {
+      await rm(resolvedSkillDirectoryPath, { recursive: true, force: true });
+    }
+
+    return { removed, provider: this.provider, directoryName };
+  }
+
   protected abstract getSkillSources(workspacePath: string): Promise<ProviderSkillSource[]>;
 
   protected async getGlobalSkillSource(): Promise<ProviderSkillSource | null> {

server/modules/providers/tests/skills.test.ts

@@ -662,6 +662,19 @@ test('providerSkillsService adds global skills for claude, codex, gemini, and cu
     const listedCursorSkills = await providerSkillsService.listProviderSkills('cursor');
     assert.equal(listedCursorSkills.some((skill) => skill.name === 'cursor-global'), true);
 
+    const removedCodexSkill = await providerSkillsService.removeProviderSkill('codex', {
+      directoryName: 'uploaded-codex-folder',
+    });
+    assert.equal(removedCodexSkill.removed, true);
+    assert.equal(removedCodexSkill.provider, 'codex');
+    assert.equal(removedCodexSkill.directoryName, 'uploaded-codex-folder');
+    await assert.rejects(fs.stat(path.dirname(createdCodexSkill.sourcePath)), { code: 'ENOENT' });
+
+    const removedMissingSkill = await providerSkillsService.removeProviderSkill('codex', {
+      directoryName: 'uploaded-codex-folder',
+    });
+    assert.equal(removedMissingSkill.removed, false);
+
     await assert.rejects(
       providerSkillsService.addProviderSkills('codex', {
         entries: [
@@ -701,4 +714,11 @@ test('providerSkillsService rejects managed skill creation for opencode', { conc
     }),
     /does not support managed global skills/i,
   );
+
+  await assert.rejects(
+    providerSkillsService.removeProviderSkill('opencode', {
+      directoryName: 'opencode-global-dir',
+    }),
+    /does not support managed global skills/i,
+  );
 });