keep .copilot only once

.gitignore

@@ -34,6 +34,7 @@ extension/lib/xterm-addon-fit.js
 .env.*
 !.env.example
 supabase/.temp/
+.copilot/
 
 # Throughput analysis — local-only, regenerate via scripts/garry-output-comparison.ts
 docs/throughput-*.json

README.md

@@ -101,7 +101,7 @@ These are conversational skills. Your OpenClaw agent runs them directly via chat
 
 ### Other AI Agents
 
-gstack works on 10 AI coding agents, not just Claude. Setup auto-detects which
+gstack works on 11 AI coding agents, not just Claude. Setup auto-detects which
 agents you have installed:
 
 ```bash
@@ -120,6 +120,7 @@ Or target a specific agent with `./setup --host <name>`:
 | Slate | `--host slate` | `~/.slate/skills/gstack-*/` |
 | Kiro | `--host kiro` | `~/.kiro/skills/gstack-*/` |
 | Hermes | `--host hermes` | `~/.hermes/skills/gstack-*/` |
+| GitHub Copilot | `--host copilot` | `~/.copilot/skills/gstack-*/` |
 | GBrain (mod) | `--host gbrain` | `~/.gbrain/skills/gstack-*/` |
 
 **Want to add support for another agent?** See [docs/ADDING_A_HOST.md](docs/ADDING_A_HOST.md).

hosts/copilot.ts

@@ -0,0 +1,46 @@
+import type { HostConfig } from '../scripts/host-config';
+
+const copilot: HostConfig = {
+  name: 'copilot',
+  displayName: 'GitHub Copilot',
+  cliCommand: 'copilot',
+  cliAliases: ['gh-copilot', 'copilot-cli'],
+
+  globalRoot: '.copilot/skills/gstack',
+  localSkillRoot: '.copilot/skills/gstack',
+  hostSubdir: '.copilot',
+  usesEnvVars: true,
+
+  frontmatter: {
+    mode: 'allowlist',
+    keepFields: ['name', 'description', 'triggers', 'platforms'],
+    descriptionLimit: 1024,
+    descriptionLimitBehavior: 'truncate',
+  },
+
+  generation: {
+    generateMetadata: false,
+    metadataFormat: null,
+    skipSkills: ['codex'],
+  },
+
+  pathRewrites: [
+    { from: '~/.claude/skills/gstack', to: '~/.copilot/skills/gstack' },
+    { from: '.claude/skills/gstack', to: '.copilot/skills/gstack' },
+    { from: '.claude/skills', to: '.copilot/skills' },
+  ],
+
+  runtimeRoot: {
+    globalSymlinks: ['bin', 'browse/dist', 'browse/bin', 'gstack-upgrade', 'ETHOS.md'],
+    globalFiles: { 'review': ['checklist.md', 'TODOS-format.md'] },
+  },
+
+  install: {
+    prefixable: false,
+    linkingStrategy: 'symlink-generated',
+  },
+
+  learningsMode: 'basic',
+};
+
+export default copilot;

hosts/index.ts

@@ -16,9 +16,10 @@ import cursor from './cursor';
 import openclaw from './openclaw';
 import hermes from './hermes';
 import gbrain from './gbrain';
+import copilot from './copilot';
 
 /** All registered host configs. Add new hosts here. */
-export const ALL_HOST_CONFIGS: HostConfig[] = [claude, codex, factory, kiro, opencode, slate, cursor, openclaw, hermes, gbrain];
+export const ALL_HOST_CONFIGS: HostConfig[] = [claude, codex, factory, kiro, opencode, slate, cursor, openclaw, hermes, gbrain, copilot];
 
 /** Map from host name to config. */
 export const HOST_CONFIG_MAP: Record<string, HostConfig> = Object.fromEntries(
@@ -65,4 +66,4 @@ export function getExternalHosts(): HostConfig[] {
 }
 
 // Re-export individual configs for direct import
-export { claude, codex, factory, kiro, opencode, slate, cursor, openclaw, hermes, gbrain };
+export { claude, codex, factory, kiro, opencode, slate, cursor, openclaw, hermes, gbrain, copilot };

test/host-config.test.ts

@@ -31,7 +31,7 @@ const ROOT = path.resolve(import.meta.dir, '..');
 
 describe('hosts/index.ts', () => {
   test('ALL_HOST_CONFIGS has 10 hosts', () => {
-    expect(ALL_HOST_CONFIGS.length).toBe(10);
+    expect(ALL_HOST_CONFIGS.length).toBe(11);
   });
 
   test('ALL_HOST_NAMES matches config names', () => {