add gstack 2 parity and lifecycle gates

test/gbrain-refresh-install-render.test.ts

@@ -2,59 +2,54 @@ import { describe, test, expect } from 'bun:test';
 import * as path from 'path';
 import * as fs from 'fs';
 
-// Static tripwires for the C (machine-wide) render in `gstack-config
-// gbrain-refresh`. The render mutates the shared global install, so the guards
-// that stop it from touching the wrong directory are load-bearing — these fail
-// CI if any guard is dropped.
+// Static tripwires for the GStack 2 `gstack-config gbrain-refresh` boundary.
+// Host placement and skill updates belong to the standard Agent Skills
+// installer. This command may refresh managed detection state, but must never
+// mutate a host-specific skill directory or regenerate skill content in place.
 const ROOT = path.resolve(import.meta.dir, '..');
 const SRC = fs.readFileSync(path.join(ROOT, 'bin', 'gstack-config'), 'utf-8');
 
-// Pull out just the gbrain-refresh `ok)` branch so assertions can't be
-// satisfied by unrelated text elsewhere in the file.
-function okBranch(): string {
-  const start = SRC.indexOf('gbrain-refresh)');
-  const ok = SRC.indexOf('ok)', start);
-  const end = SRC.indexOf(';;', ok);
-  if (start < 0 || ok < 0 || end < 0) throw new Error('Could not locate gbrain-refresh ok) branch');
-  return SRC.slice(ok, end);
+function refreshFunction(): string {
+  const start = SRC.indexOf('async function refreshGbrainDetection()');
+  const end = SRC.indexOf('\nasync function mutateConfigHome', start);
+  if (start < 0 || end < 0) {
+    throw new Error('Could not locate refreshGbrainDetection');
+  }
+  return SRC.slice(start, end);
 }
 
-describe('gstack-config gbrain-refresh: machine-wide render guards', () => {
-  const branch = okBranch();
+describe('gstack-config gbrain-refresh: managed-state-only boundary', () => {
+  const body = refreshFunction();
 
-  test('targets the global install', () => {
-    expect(branch).toContain('$HOME/.claude/skills/gstack');
+  test('runs the canonical detector', () => {
+    expect(body).toContain('gstack-gbrain-detect');
   });
 
-  test('refuses a symlinked install (would dirty a dev worktree)', () => {
-    expect(branch).toMatch(/\[ -L "\$INSTALL_DIR" \]/);
+  test('writes only managed detection state with an atomic rename', () => {
+    expect(body).toContain('gbrain-detection.json');
+    expect(body).toContain('.tmp-${process.pid}');
+    expect(body).toContain('fs.rename(temporary, target)');
+    expect(body).toContain('mutateConfigHome');
   });
 
-  test('verifies it is a real gstack clone before mutating it', () => {
-    expect(branch).toContain('$INSTALL_DIR/VERSION');
-    expect(branch).toContain('$INSTALL_DIR/package.json');
+  test('does not own host placement or in-place generation', () => {
+    expect(body).not.toMatch(/\.claude\/skills|\.agents\/skills/);
+    expect(body).not.toContain('gen:skill-docs');
+    expect(body).not.toContain('gstack-relink');
   });
 
-  test('requires bun on PATH', () => {
-    expect(branch).toContain('command -v bun');
-  });
-
-  test('renders the :user variant in place into the install', () => {
-    expect(branch).toContain('gen:skill-docs:user --host claude');
-  });
-
-  test('is self-documenting about the reset --hard / re-run cycle', () => {
-    expect(branch).toContain('reset --hard');
-    expect(branch).toContain('gbrain-refresh');
+  test('directs content updates back through the standard installer', () => {
+    expect(body).toContain('standard Agent Skills installer');
   });
 });
 
-describe('CLAUDE.md: deploy section documents the re-run', () => {
-  test('notes re-running gbrain-refresh after reset --hard', () => {
+describe('CLAUDE.md: deploy section preserves the installer boundary', () => {
+  test('names the standard installer as the host-placement owner', () => {
     const claudeMd = fs.readFileSync(path.join(ROOT, 'CLAUDE.md'), 'utf-8');
     const idx = claudeMd.indexOf('## Deploying to the active skill');
     expect(idx).toBeGreaterThan(-1);
     const section = claudeMd.slice(idx, idx + 1200);
-    expect(section).toContain('gbrain-refresh');
+    expect(section).toContain('standard Agent Skills installer');
+    expect(section).not.toContain('renders into the install');
   });
 });