Add Windsurf IDE support with slash commands

README.md

@@ -85,6 +85,7 @@ These tools have built-in OpenSpec commands. Select the OpenSpec integration whe
 | **Cursor** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |
 | **OpenCode** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |
 | **Kilo Code** | `/openspec-proposal.md`, `/openspec-apply.md`, `/openspec-archive.md` (`.kilocode/workflows/`) |
+| **Windsurf** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.windsurf/workflows/`) |
 
 Kilo Code discovers team workflows automatically. Save the generated files under `.kilocode/workflows/` and trigger them from the command palette with `/openspec-proposal.md`, `/openspec-apply.md`, or `/openspec-archive.md`.
 

src/core/config.ts

@@ -21,5 +21,6 @@ export const AI_TOOLS: AIToolOption[] = [
   { name: 'Cursor', value: 'cursor', available: true, successLabel: 'Cursor' },
   { name: 'OpenCode', value: 'opencode', available: true, successLabel: 'OpenCode' },
   { name: 'Kilo Code', value: 'kilocode', available: true, successLabel: 'Kilo Code' },
+  { name: 'Windsurf', value: 'windsurf', available: true, successLabel: 'Windsurf' },
   { name: 'AGENTS.md (works with Codex, Amp, VS Code, GitHub Copilot, …)', value: 'agents', available: false, successLabel: 'your AGENTS.md-compatible assistant' }
 ];

src/core/configurators/slash/registry.ts

@@ -1,6 +1,7 @@
 import { SlashCommandConfigurator } from './base.js';
 import { ClaudeSlashCommandConfigurator } from './claude.js';
 import { CursorSlashCommandConfigurator } from './cursor.js';
+import { WindsurfSlashCommandConfigurator } from './windsurf.js';
 import { KiloCodeSlashCommandConfigurator } from './kilocode.js';
 import { OpenCodeSlashCommandConfigurator } from './opencode.js';
 
@@ -10,11 +11,13 @@ export class SlashCommandRegistry {
   static {
     const claude = new ClaudeSlashCommandConfigurator();
     const cursor = new CursorSlashCommandConfigurator();
+    const windsurf = new WindsurfSlashCommandConfigurator();
     const kilocode = new KiloCodeSlashCommandConfigurator();
     const opencode = new OpenCodeSlashCommandConfigurator();
 
     this.configurators.set(claude.toolId, claude);
     this.configurators.set(cursor.toolId, cursor);
+    this.configurators.set(windsurf.toolId, windsurf);
     this.configurators.set(kilocode.toolId, kilocode);
     this.configurators.set(opencode.toolId, opencode);
   }

src/core/configurators/slash/windsurf.ts

@@ -0,0 +1,27 @@
+import { SlashCommandConfigurator } from './base.js';
+import { SlashCommandId } from '../../templates/index.js';
+
+const FILE_PATHS: Record<SlashCommandId, string> = {
+  proposal: '.windsurf/workflows/openspec-proposal.md',
+  apply: '.windsurf/workflows/openspec-apply.md',
+  archive: '.windsurf/workflows/openspec-archive.md'
+};
+
+export class WindsurfSlashCommandConfigurator extends SlashCommandConfigurator {
+  readonly toolId = 'windsurf';
+  readonly isAvailable = true;
+
+  protected getRelativePath(id: SlashCommandId): string {
+    return FILE_PATHS[id];
+  }
+
+  protected getFrontmatter(id: SlashCommandId): string | undefined {
+    const descriptions: Record<SlashCommandId, string> = {
+      proposal: 'Scaffold a new OpenSpec change and validate strictly.',
+      apply: 'Implement an approved OpenSpec change and keep tasks in sync.',
+      archive: 'Archive a deployed OpenSpec change and update specs.'
+    };
+    const description = descriptions[id];
+    return `---\ndescription: ${description}\nauto_execution_mode: 3\n---`;
+  }
+}

test/core/init.test.ts

@@ -129,6 +129,50 @@ describe('InitCommand', () => {
       expect(updatedContent).toContain('Custom instructions here');
     });
 
+    it('should create Windsurf workflows when Windsurf is selected', async () => {
+      queueSelections('windsurf', DONE);
+
+      await initCommand.execute(testDir);
+
+      const wsProposal = path.join(
+        testDir,
+        '.windsurf/workflows/openspec-proposal.md'
+      );
+      const wsApply = path.join(
+        testDir,
+        '.windsurf/workflows/openspec-apply.md'
+      );
+      const wsArchive = path.join(
+        testDir,
+        '.windsurf/workflows/openspec-archive.md'
+      );
+
+      expect(await fileExists(wsProposal)).toBe(true);
+      expect(await fileExists(wsApply)).toBe(true);
+      expect(await fileExists(wsArchive)).toBe(true);
+
+      const proposalContent = await fs.readFile(wsProposal, 'utf-8');
+      expect(proposalContent).toContain('---');
+      expect(proposalContent).toContain('description: Scaffold a new OpenSpec change and validate strictly.');
+      expect(proposalContent).toContain('auto_execution_mode: 3');
+      expect(proposalContent).toContain('<!-- OPENSPEC:START -->');
+      expect(proposalContent).toContain('**Guardrails**');
+
+      const applyContent = await fs.readFile(wsApply, 'utf-8');
+      expect(applyContent).toContain('---');
+      expect(applyContent).toContain('description: Implement an approved OpenSpec change and keep tasks in sync.');
+      expect(applyContent).toContain('auto_execution_mode: 3');
+      expect(applyContent).toContain('<!-- OPENSPEC:START -->');
+      expect(applyContent).toContain('Work through tasks sequentially');
+
+      const archiveContent = await fs.readFile(wsArchive, 'utf-8');
+      expect(archiveContent).toContain('---');
+      expect(archiveContent).toContain('description: Archive a deployed OpenSpec change and update specs.');
+      expect(archiveContent).toContain('auto_execution_mode: 3');
+      expect(archiveContent).toContain('<!-- OPENSPEC:START -->');
+      expect(archiveContent).toContain('Run `openspec archive <id> --yes`');
+    });
+
     it('should always create AGENTS.md in project root', async () => {
       queueSelections(DONE);
 
@@ -399,6 +443,18 @@ describe('InitCommand', () => {
       const preselected = secondRunArgs.initialSelected ?? [];
       expect(preselected).toContain('kilocode');
     });
+
+    it('should mark Windsurf as already configured during extend mode', async () => {
+      queueSelections('windsurf', DONE, 'windsurf', DONE);
+      await initCommand.execute(testDir);
+      await initCommand.execute(testDir);
+
+      const secondRunArgs = mockPrompt.mock.calls[1][0];
+      const wsChoice = secondRunArgs.choices.find(
+        (choice: any) => choice.value === 'windsurf'
+      );
+      expect(wsChoice.configured).toBe(true);
+    });
   });
 
   describe('error handling', () => {

test/core/update.test.ts

@@ -220,6 +220,81 @@ Old body
     consoleSpy.mockRestore();
   });
 
+  it('should refresh existing Windsurf workflows', async () => {
+    const wsPath = path.join(
+      testDir,
+      '.windsurf/workflows/openspec-apply.md'
+    );
+    await fs.mkdir(path.dirname(wsPath), { recursive: true });
+    const initialContent = `## OpenSpec: Apply (Windsurf)
+Intro
+<!-- OPENSPEC:START -->
+Old body
+<!-- OPENSPEC:END -->`;
+    await fs.writeFile(wsPath, initialContent);
+
+    const consoleSpy = vi.spyOn(console, 'log');
+
+    await updateCommand.execute(testDir);
+
+    const updated = await fs.readFile(wsPath, 'utf-8');
+    expect(updated).toContain('Work through tasks sequentially');
+    expect(updated).not.toContain('Old body');
+    expect(updated).toContain('## OpenSpec: Apply (Windsurf)');
+
+    const [logMessage] = consoleSpy.mock.calls[0];
+    expect(logMessage).toContain(
+      'Updated slash commands: .windsurf/workflows/openspec-apply.md'
+    );
+    consoleSpy.mockRestore();
+  });
+
+  it('should preserve Windsurf content outside markers during update', async () => {
+    const wsPath = path.join(
+      testDir,
+      '.windsurf/workflows/openspec-proposal.md'
+    );
+    await fs.mkdir(path.dirname(wsPath), { recursive: true });
+    const initialContent = `## Custom Intro Title\nSome intro text\n<!-- OPENSPEC:START -->\nOld body\n<!-- OPENSPEC:END -->\n\nFooter stays`;
+    await fs.writeFile(wsPath, initialContent);
+
+    await updateCommand.execute(testDir);
+
+    const updated = await fs.readFile(wsPath, 'utf-8');
+    expect(updated).toContain('## Custom Intro Title');
+    expect(updated).toContain('Footer stays');
+    expect(updated).not.toContain('Old body');
+    expect(updated).toContain('Validate with `openspec validate <id> --strict`');
+  });
+
+  it('should not create missing Windsurf workflows on update', async () => {
+    const wsApply = path.join(
+      testDir,
+      '.windsurf/workflows/openspec-apply.md'
+    );
+    // Only create apply; leave proposal and archive missing
+    await fs.mkdir(path.dirname(wsApply), { recursive: true });
+    await fs.writeFile(
+      wsApply,
+      '<!-- OPENSPEC:START -->\nOld\n<!-- OPENSPEC:END -->'
+    );
+
+    await updateCommand.execute(testDir);
+
+    const wsProposal = path.join(
+      testDir,
+      '.windsurf/workflows/openspec-proposal.md'
+    );
+    const wsArchive = path.join(
+      testDir,
+      '.windsurf/workflows/openspec-archive.md'
+    );
+
+    // Confirm they weren't created by update
+    await expect(FileSystemUtils.fileExists(wsProposal)).resolves.toBe(false);
+    await expect(FileSystemUtils.fileExists(wsArchive)).resolves.toBe(false);
+  });
+
   it('should handle no AI tool files present', async () => {
     // Execute update command with no AI tool files
     const consoleSpy = vi.spyOn(console, 'log');