Add Trae opsx command adapter

.gitignore

@@ -156,3 +156,6 @@ opencode.json
 
 # Codex
 .codex/
+
+# Trae
+.trae/

docs/commands.md

@@ -618,7 +618,7 @@ Different AI tools use slightly different command syntax. Use the format that ma
 | Cursor | `/opsx-propose`, `/opsx-apply` |
 | Windsurf | `/opsx-propose`, `/opsx-apply` |
 | Copilot (IDE) | `/opsx-propose`, `/opsx-apply` |
-| Trae | Skill-based invocations such as `/openspec-propose`, `/openspec-apply-change` (no generated `opsx-*` command files) |
+| Trae | `/opsx-propose`, `/opsx-apply` |
 
 The intent is the same across tools, but how commands are surfaced can differ by integration.
 

docs/supported-tools.md

@@ -43,7 +43,7 @@ You can enable expanded workflows (`new`, `continue`, `ff`, `verify`, `sync`, `b
 | Qoder (`qoder`) | `.qoder/skills/openspec-*/SKILL.md` | `.qoder/commands/opsx/<id>.md` |
 | Qwen Code (`qwen`) | `.qwen/skills/openspec-*/SKILL.md` | `.qwen/commands/opsx-<id>.toml` |
 | RooCode (`roocode`) | `.roo/skills/openspec-*/SKILL.md` | `.roo/commands/opsx-<id>.md` |
-| Trae (`trae`) | `.trae/skills/openspec-*/SKILL.md` | Not generated (no command adapter; use skill-based `/openspec-*` invocations) |
+| Trae (`trae`) | `.trae/skills/openspec-*/SKILL.md` | `.trae/commands/opsx-<id>.md` |
 | Windsurf (`windsurf`) | `.windsurf/skills/openspec-*/SKILL.md` | `.windsurf/workflows/opsx-<id>.md` |
 
 \* Codex commands are installed in the global Codex home (`$CODEX_HOME/prompts/` if set, otherwise `~/.codex/prompts/`), not your project directory.

src/core/command-generation/adapters/index.ts

@@ -26,4 +26,5 @@ export { piAdapter } from './pi.js';
 export { qoderAdapter } from './qoder.js';
 export { qwenAdapter } from './qwen.js';
 export { roocodeAdapter } from './roocode.js';
+export { traeAdapter } from './trae.js';
 export { windsurfAdapter } from './windsurf.js';

src/core/command-generation/adapters/trae.ts

@@ -0,0 +1,53 @@
+/**
+ * Trae Command Adapter
+ *
+ * Formats commands for Trae following its frontmatter specification.
+ */
+import path from 'path';
+import type { CommandContent, ToolCommandAdapter } from '../types.js';
+
+/**
+ * Escapes a string value for safe YAML output.
+ * Quotes the string if it contains special YAML characters.
+ */
+function escapeYamlValue(value: string): string {
+  const needsQuoting = /[:\n\r#{}[\],&*!|>'"%@`]|^\s|\s$/.test(value);
+  if (needsQuoting) {
+    const escaped = value.replace(/\\/g, '\\\\').replace(/"/g, '\\"').replace(/\n/g, '\\n');
+    return `"${escaped}"`;
+  }
+  return value;
+}
+
+/**
+ * Formats a tags array as a YAML array with proper escaping.
+ */
+function formatTagsArray(tags: string[]): string {
+  const escapedTags = tags.map((tag) => escapeYamlValue(tag));
+  return `[${escapedTags.join(', ')}]`;
+}
+
+/**
+ * Trae adapter for command generation.
+ * File path: .trae/commands/opsx-<id>.md
+ * Frontmatter: name, description, category, tags
+ */
+export const traeAdapter: ToolCommandAdapter = {
+  toolId: 'trae',
+
+  getFilePath(commandId: string): string {
+    return path.join('.trae', 'commands', `opsx-${commandId}.md`);
+  },
+
+  formatFile(content: CommandContent): string {
+    return `---
+name: /opsx-${content.id}
+description: ${escapeYamlValue(content.description)}
+category: ${escapeYamlValue(content.category)}
+tags: ${formatTagsArray(content.tags)}
+---
+
+${content.body}
+`;
+  },
+};

src/core/command-generation/registry.ts

@@ -28,6 +28,7 @@ import { piAdapter } from './adapters/pi.js';
 import { qoderAdapter } from './adapters/qoder.js';
 import { qwenAdapter } from './adapters/qwen.js';
 import { roocodeAdapter } from './adapters/roocode.js';
+import { traeAdapter } from './adapters/trae.js';
 import { windsurfAdapter } from './adapters/windsurf.js';
 
 /**
@@ -60,6 +61,7 @@ export class CommandAdapterRegistry {
     CommandAdapterRegistry.register(qoderAdapter);
     CommandAdapterRegistry.register(qwenAdapter);
     CommandAdapterRegistry.register(roocodeAdapter);
+    CommandAdapterRegistry.register(traeAdapter);
     CommandAdapterRegistry.register(windsurfAdapter);
   }
 

test/core/command-generation/adapters.test.ts

@@ -22,6 +22,7 @@ import { piAdapter } from '../../../src/core/command-generation/adapters/pi.js';
 import { qoderAdapter } from '../../../src/core/command-generation/adapters/qoder.js';
 import { qwenAdapter } from '../../../src/core/command-generation/adapters/qwen.js';
 import { roocodeAdapter } from '../../../src/core/command-generation/adapters/roocode.js';
+import { traeAdapter } from '../../../src/core/command-generation/adapters/trae.js';
 import { windsurfAdapter } from '../../../src/core/command-generation/adapters/windsurf.js';
 import type { CommandContent } from '../../../src/core/command-generation/types.js';
 
@@ -585,6 +586,35 @@ describe('command-generation/adapters', () => {
     });
   });
 
+  describe('traeAdapter', () => {
+    it('should have correct toolId', () => {
+      expect(traeAdapter.toolId).toBe('trae');
+    });
+
+    it('should generate correct file path', () => {
+      const filePath = traeAdapter.getFilePath('explore');
+      expect(filePath).toBe(path.join('.trae', 'commands', 'opsx-explore.md'));
+    });
+
+    it('should format file with correct YAML frontmatter', () => {
+      const output = traeAdapter.formatFile(sampleContent);
+
+      expect(output).toContain('---\n');
+      expect(output).toContain('name: /opsx-explore');
+      expect(output).toContain('description: Enter explore mode for thinking');
+      expect(output).toContain('category: Workflow');
+      expect(output).toContain('tags: [workflow, explore, experimental]');
+      expect(output).toContain('---\n\n');
+      expect(output).toContain('This is the command body.');
+    });
+
+    it('should handle empty tags', () => {
+      const contentNoTags: CommandContent = { ...sampleContent, tags: [] };
+      const output = traeAdapter.formatFile(contentNoTags);
+      expect(output).toContain('tags: []');
+    });
+  });
+
   describe('cross-platform path handling', () => {
     it('Claude adapter uses path.join for paths', () => {
       // path.join handles platform-specific separators
@@ -610,7 +640,7 @@ describe('command-generation/adapters', () => {
         codexAdapter, codebuddyAdapter, continueAdapter, costrictAdapter,
         crushAdapter, factoryAdapter, geminiAdapter, githubCopilotAdapter,
         iflowAdapter, kilocodeAdapter, opencodeAdapter, piAdapter, qoderAdapter,
-        qwenAdapter, roocodeAdapter
+        qwenAdapter, roocodeAdapter, traeAdapter
       ];
       for (const adapter of adapters) {
         const filePath = adapter.getFilePath('test');

test/core/init.test.ts

@@ -380,6 +380,19 @@ describe('InitCommand', () => {
       const content = await fs.readFile(cmdFile, 'utf-8');
       expect(content).toMatch(/^---\n/);
     });
+
+    it('should generate Trae commands with correct format', async () => {
+      const initCommand = new InitCommand({ tools: 'trae', force: true });
+      await initCommand.execute(testDir);
+
+      const cmdFile = path.join(testDir, '.trae', 'commands', 'opsx-explore.md');
+      expect(await fileExists(cmdFile)).toBe(true);
+
+      const content = await fs.readFile(cmdFile, 'utf-8');
+      expect(content).toMatch(/^---\n/);
+      expect(content).toContain('name: /opsx-explore');
+      expect(content).toContain('description:');
+    });
   });
 
   describe('error handling', () => {

test/core/update.test.ts

@@ -1484,10 +1484,22 @@ More user content after markers.
 
       const { AI_TOOLS } = await import('../../src/core/config.js');
       const { CommandAdapterRegistry } = await import('../../src/core/command-generation/index.js');
+      const candidateTool = AI_TOOLS.find((tool) => tool.skillsDir);
+      expect(candidateTool).toBeDefined();
+      if (!candidateTool?.skillsDir) {
+        return;
+      }
+      const originalGet = CommandAdapterRegistry.get.bind(CommandAdapterRegistry);
+      vi.spyOn(CommandAdapterRegistry, 'get').mockImplementation((toolId: string) => {
+        if (toolId === candidateTool.value) {
+          return undefined;
+        }
+        return originalGet(toolId);
+      });
       const adapterlessTool = AI_TOOLS.find((tool) => tool.skillsDir && !CommandAdapterRegistry.get(tool.value));
       expect(adapterlessTool).toBeDefined();
       if (!adapterlessTool?.skillsDir) {
-        return;
+        throw new Error('Expected adapterless tool with skillsDir');
       }
 
       const skillsDir = path.join(testDir, adapterlessTool.skillsDir, 'skills');