gstack/test/gen-skill-docs.test.ts

import { describe, test, expect, afterAll } from 'bun:test';
import { assertSinglePreamble } from '../scripts/gen-skill-docs';
import { COMMAND_DESCRIPTIONS } from '../browse/src/commands';
import { SNAPSHOT_FLAGS } from '../browse/src/snapshot';
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';
import { spawnSync } from 'child_process';

const ROOT = path.resolve(import.meta.dir, '..');
const MAX_SKILL_DESCRIPTION_LENGTH = 1024;

// Carved-skill aware (v2 plan T9): ship is now a skeleton SKILL.md + sections/*.md.
// Read the union so assertions about content that MOVED into a section still pass.
// The skeleton is a subset of the union, so skeleton-only assertions also hold,
// and negative assertions stay safe (the absent phrases live in neither file).
function readSkillUnion(skill: string): string {
  let t = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
  const secDir = path.join(ROOT, skill, 'sections');
  if (fs.existsSync(secDir)) {
    for (const f of fs.readdirSync(secDir).sort()) {
      if (f.endsWith('.md')) t += '\n' + fs.readFileSync(path.join(secDir, f), 'utf-8');
    }
  }
  return t;
}
function readShipUnion(): string {
  return readSkillUnion('ship');
}

// Token-reduction Phase 1: the preamble's inline bash (session bookkeeping,
// config echoes, telemetry producers, artifacts sync) moved into
// bin/gstack-skill-start / bin/gstack-skill-end. The render carries a one-line
// invocation fence + interpretation prose. Assertions that pinned inline-bash
// internals now pin the scripts (the new home); render-side assertions pin the
// fence + prose. Script behavior is pinned by test/gstack-skill-start.test.ts.
const SKILL_START_SCRIPT = fs.readFileSync(path.join(ROOT, 'bin', 'gstack-skill-start'), 'utf-8');
const SKILL_END_SCRIPT = fs.readFileSync(path.join(ROOT, 'bin', 'gstack-skill-end'), 'utf-8');

function extractDescription(content: string): string {
  const fmEnd = content.indexOf('\n---', 4);
  expect(fmEnd).toBeGreaterThan(0);
  const frontmatter = content.slice(4, fmEnd);
  const lines = frontmatter.split('\n');
  let description = '';
  let inDescription = false;
  const descLines: string[] = [];

  for (const line of lines) {
    if (line.match(/^description:\s*\|?\s*$/)) {
      inDescription = true;
      continue;
    }
    if (line.match(/^description:\s*\S/)) {
      return line.replace(/^description:\s*/, '').trim();
    }
    if (inDescription) {
      if (line === '' || line.match(/^\s/)) {
        descLines.push(line.replace(/^  /, ''));
      } else {
        break;
      }
    }
  }

  if (descLines.length > 0) {
    description = descLines.join('\n').trim();
  }
  return description;
}

function extractMarkdownSection(content: string, heading: string): string {
  const escaped = heading.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
  const startMatch = content.match(new RegExp(`^${escaped}.*$`, 'm'));
  expect(startMatch?.index).toBeDefined();
  const start = startMatch!.index!;
  const afterHeading = start + startMatch![0].length;
  const nextSection = content.slice(afterHeading).match(/\n## /);
  const end = nextSection?.index === undefined
    ? content.length
    : afterHeading + nextSection.index;
  return content.slice(start, end).trim();
}

function extractPreambleBeforeWorkflow(content: string, workflowMarkers: string[]): string {
  const markerIndexes = workflowMarkers
    .map(marker => content.indexOf(marker))
    .filter(index => index >= 0);
  expect(markerIndexes.length).toBeGreaterThan(0);
  return content.slice(0, Math.min(...markerIndexes));
}

function isRepoRootSymlink(candidateDir: string): boolean {
  try {
    return fs.realpathSync(candidateDir) === fs.realpathSync(ROOT);
  } catch {
    return false;
  }
}

// Dynamic template discovery — matches the generator's findTemplates() behavior.
// New skills automatically get test coverage without updating a static list.
const ALL_SKILLS = (() => {
  const skills: Array<{ dir: string; name: string }> = [];
  if (fs.existsSync(path.join(ROOT, 'SKILL.md.tmpl'))) {
    skills.push({ dir: '.', name: 'root gstack' });
  }
  for (const entry of fs.readdirSync(ROOT, { withFileTypes: true })) {
    if (!entry.isDirectory() || entry.name.startsWith('.') || entry.name === 'node_modules') continue;
    if (fs.existsSync(path.join(ROOT, entry.name, 'SKILL.md.tmpl'))) {
      skills.push({ dir: entry.name, name: entry.name });
    }
  }
  return skills;
})();

// hosts/claude.ts generation.skipSkills entries would filter here; the set is
// currently empty (the /claude outside-voice template was removed).
// The claude host deliberately skips some skills (skipSkills — e.g. the
// /claude outside-voice skill exists only for non-Claude hosts), so those
// dirs have a SKILL.md.tmpl but no generated claude-host SKILL.md on a fresh
// checkout. Every generated-file assertion must exclude them or it is red on
// every clean clone (it was, invisibly, until the free suite ran in CI).
import { getHostConfig as __getHostConfig } from '../hosts/index';
const CLAUDE_SKIPPED = new Set(__getHostConfig('claude').generation.skipSkills ?? []);
const CLAUDE_GENERATED_SKILLS = ALL_SKILLS.filter(s => !CLAUDE_SKIPPED.has(s.dir));

// ─── Out-dir render isolation ────────────────────────────────
// Every generator invocation in this file that used to regenerate the live
// tree (the gitignored .agents/.factory/... host dirs included) now renders
// into this module-level out-dir: ONE `--host all` render covers the claude
// host plus every external host, and all golden-artifact reads plus the
// per-host `--dry-run` determinism checks point here. The tracked tree is
// only ever READ (the `generated files are fresh` dry-run deliberately
// compares against the committed files — that is a read, not a write).
// Out-dir renders of external hosts are byte-identical to in-place renders
// (pinned by test/gen-skill-docs-out-dir.test.ts).
const EXTERNAL_OUT = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-gen-docs-out-'));
{
  const render = Bun.spawnSync(
    ['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'all', '--out-dir', EXTERNAL_OUT],
    { cwd: ROOT, stdout: 'pipe', stderr: 'pipe', timeout: 120_000 },
  );
  if (render.exitCode !== 0) {
    throw new Error(
      `gen-skill-docs --host all --out-dir failed (exit ${render.exitCode}):\n${render.stderr.toString()}`,
    );
  }
}
afterAll(() => {
  fs.rmSync(EXTERNAL_OUT, { recursive: true, force: true });
});

describe('gen-skill-docs', () => {
  // Browse carve (token-reduction Phase 4): the command reference + snapshot
  // flags render into browse/sections/command-list.md now — read the
  // skeleton+sections union so these pins hold across the carve.
  test('generated SKILL.md contains all command categories', () => {
    const content = readSkillUnion('browse');
    const categories = new Set(Object.values(COMMAND_DESCRIPTIONS).map(d => d.category));
    for (const cat of categories) {
      expect(content).toContain(`### ${cat}`);
    }
  });

  test('generated SKILL.md contains all commands', () => {
    const content = readSkillUnion('browse');
    for (const [cmd, meta] of Object.entries(COMMAND_DESCRIPTIONS)) {
      const display = meta.usage || cmd;
      expect(content).toContain(display);
    }
  });

  test('command table is sorted alphabetically within categories', () => {
    const content = readSkillUnion('browse');
    // Extract command names from the Navigation section as a test
    const navSection = content.match(/### Navigation\n\|.*\n\|.*\n([\s\S]*?)(?=\n###|\n## )/);
    expect(navSection).not.toBeNull();
    const rows = navSection![1].trim().split('\n');
    const commands = rows.map(r => {
      const match = r.match(/\| `(\w+)/);
      return match ? match[1] : '';
    }).filter(Boolean);
    const sorted = [...commands].sort();
    expect(commands).toEqual(sorted);
  });

  test('generated header is present in SKILL.md', () => {
    const content = fs.readFileSync(path.join(ROOT, 'SKILL.md'), 'utf-8');
    expect(content).toContain('AUTO-GENERATED from SKILL.md.tmpl');
    expect(content).toContain('Regenerate: bun run gen:skill-docs');
  });

  test('generated header is present in browse/SKILL.md', () => {
    const content = fs.readFileSync(path.join(ROOT, 'browse', 'SKILL.md'), 'utf-8');
    expect(content).toContain('AUTO-GENERATED from SKILL.md.tmpl');
  });

  test('snapshot flags section contains all flags', () => {
    const content = readSkillUnion('browse');
    for (const flag of SNAPSHOT_FLAGS) {
      expect(content).toContain(flag.short);
      expect(content).toContain(flag.description);
    }
  });

  test('every skill has a SKILL.md.tmpl template', () => {
    for (const skill of ALL_SKILLS) {
      const tmplPath = path.join(ROOT, skill.dir, 'SKILL.md.tmpl');
      expect(fs.existsSync(tmplPath)).toBe(true);
    }
  });

  test('every skill has a generated SKILL.md with auto-generated header', () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const mdPath = path.join(ROOT, skill.dir, 'SKILL.md');
      expect(fs.existsSync(mdPath)).toBe(true);
      const content = fs.readFileSync(mdPath, 'utf-8');
      expect(content).toContain('AUTO-GENERATED from SKILL.md.tmpl');
      expect(content).toContain('Regenerate: bun run gen:skill-docs');
    }
  });

  // #1778: strict YAML parsers (Codex/OpenAI skill loading) reject frontmatter
  // whose plain `description:` scalar contains an interior ": " (read as a nested
  // mapping). Parse EVERY generated frontmatter block with a strict YAML parser,
  // not just string-check that name:/description: exist.
  function frontmatterBlock(content: string): string {
    expect(content.startsWith('---\n')).toBe(true);
    const end = content.indexOf('\n---', 4);
    expect(end).toBeGreaterThan(0);
    return content.slice(4, end);
  }

  test('every generated SKILL.md frontmatter parses as strict YAML', () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      const fm = frontmatterBlock(content);
      let parsed: any;
      expect(() => { parsed = Bun.YAML.parse(fm); },
        `frontmatter for ${skill.dir} must be valid YAML`).not.toThrow();
      expect(typeof parsed?.name).toBe('string');
      expect(typeof parsed?.description).toBe('string');
    }
  });

  test('every generated Codex (.agents/skills) frontmatter parses as strict YAML', () => {
    // Reads the module-level out-dir render (guaranteed present — the render
    // throws at module load if it fails), never the live gitignored tree.
    const agentsDir = path.join(EXTERNAL_OUT, '.agents', 'skills');
    for (const entry of fs.readdirSync(agentsDir, { withFileTypes: true })) {
      if (!entry.isDirectory()) continue;
      const mdPath = path.join(agentsDir, entry.name, 'SKILL.md');
      if (!fs.existsSync(mdPath)) continue;
      const fm = frontmatterBlock(fs.readFileSync(mdPath, 'utf-8'));
      expect(() => Bun.YAML.parse(fm),
        `Codex frontmatter for ${entry.name} must be valid YAML`).not.toThrow();
    }
  });

  test(`every generated SKILL.md description stays within ${MAX_SKILL_DESCRIPTION_LENGTH} chars`, () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      const description = extractDescription(content);
      expect(description.length).toBeLessThanOrEqual(MAX_SKILL_DESCRIPTION_LENGTH);
    }
  });

  test(`every Codex SKILL.md description stays within ${MAX_SKILL_DESCRIPTION_LENGTH} chars`, () => {
    const agentsDir = path.join(EXTERNAL_OUT, '.agents', 'skills');
    for (const entry of fs.readdirSync(agentsDir, { withFileTypes: true })) {
      if (!entry.isDirectory()) continue;
      const skillMd = path.join(agentsDir, entry.name, 'SKILL.md');
      if (!fs.existsSync(skillMd)) continue;
      const content = fs.readFileSync(skillMd, 'utf-8');
      const description = extractDescription(content);
      expect(description.length).toBeLessThanOrEqual(MAX_SKILL_DESCRIPTION_LENGTH);
    }
  });

  test('every Codex SKILL.md description stays under 900-char warning threshold', () => {
    const WARN_THRESHOLD = 900;
    const agentsDir = path.join(EXTERNAL_OUT, '.agents', 'skills');
    const violations: string[] = [];
    for (const entry of fs.readdirSync(agentsDir, { withFileTypes: true })) {
      if (!entry.isDirectory()) continue;
      const skillMd = path.join(agentsDir, entry.name, 'SKILL.md');
      if (!fs.existsSync(skillMd)) continue;
      const content = fs.readFileSync(skillMd, 'utf-8');
      const description = extractDescription(content);
      if (description.length > WARN_THRESHOLD) {
        violations.push(`${entry.name}: ${description.length} chars (limit ${MAX_SKILL_DESCRIPTION_LENGTH}, ${MAX_SKILL_DESCRIPTION_LENGTH - description.length} remaining)`);
      }
    }
    expect(violations).toEqual([]);
  });

  test('package.json version matches VERSION file (npm-valid translation)', () => {
    // Decision 11 (v1.67 wave): VERSION stays the 4-digit source of truth;
    // package.json carries the npm-valid 3-digit translation (npm rejects a
    // fourth component). The pre-v1.67 1:1 four-digit mirror is also accepted
    // (grandfathered until the next write), matching gstack-version-bump's
    // own drift contract.
    const pkg = JSON.parse(fs.readFileSync(path.join(ROOT, 'package.json'), 'utf-8'));
    const version = fs.readFileSync(path.join(ROOT, 'VERSION'), 'utf-8').trim();
    const npmTranslation = version.split('.').slice(0, 3).join('.');
    expect([npmTranslation, version]).toContain(pkg.version);
  });

  test('generated files are fresh (match --dry-run)', () => {
    // Deliberately compares against the LIVE TRACKED SKILL.md files (no
    // --out-dir): this is the freshness gate for the committed tree. Dry-run
    // writes nothing — it is a read.
    const result = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--dry-run'], {
      cwd: ROOT,
      stdout: 'pipe',
      stderr: 'pipe',
      timeout: 120_000,
    });
    expect(result.exitCode).toBe(0);
    const output = result.stdout.toString();
    // Every skill should be FRESH
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const file = skill.dir === '.' ? 'SKILL.md' : `${skill.dir}/SKILL.md`;
      expect(output).toContain(`FRESH: ${file}`);
    }
    expect(output).not.toContain('STALE');
  });

  test('no generated SKILL.md contains unresolved placeholders', () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      const unresolved = content.match(/\{\{[A-Z_]+\}\}/g);
      expect(unresolved).toBeNull();
    }
  });

  test('templates contain placeholders', () => {
    // P2 (v1.2.0): the root template is a pure router — only {{PREAMBLE}}.
    // The browse command/snapshot placeholders live in browse/SKILL.md.tmpl now.
    const rootTmpl = fs.readFileSync(path.join(ROOT, 'SKILL.md.tmpl'), 'utf-8');
    expect(rootTmpl).toContain('{{PREAMBLE}}');
    expect(rootTmpl).not.toContain('{{COMMAND_REFERENCE}}');
    expect(rootTmpl).not.toContain('{{SNAPSHOT_FLAGS}}');

    // Browse carve: the reference resolvers moved into the on-demand section
    // template (so gen-skill-docs keeps them fresh from browse/src); the
    // skeleton points at the section instead of inlining the reference.
    const browseTmpl = fs.readFileSync(path.join(ROOT, 'browse', 'SKILL.md.tmpl'), 'utf-8');
    expect(browseTmpl).not.toContain('{{COMMAND_REFERENCE}}');
    expect(browseTmpl).not.toContain('{{SNAPSHOT_FLAGS}}');
    expect(browseTmpl).toContain('{{SECTION:command-list}}');
    expect(browseTmpl).toContain('{{PREAMBLE}}');

    const browseSectionTmpl = fs.readFileSync(
      path.join(ROOT, 'browse', 'sections', 'command-list.md.tmpl'), 'utf-8');
    expect(browseSectionTmpl).toContain('{{COMMAND_REFERENCE}}');
    expect(browseSectionTmpl).toContain('{{SNAPSHOT_FLAGS}}');

    // Aside is the primary browser: every browsing skill renders the Aside
    // contract ({{ASIDE_SETUP}}); the browse binary is its fallback.
    const qaTmpl = fs.readFileSync(path.join(ROOT, 'qa', 'SKILL.md.tmpl'), 'utf-8');
    expect(qaTmpl).toContain('{{ASIDE_SETUP}}');
    expect(browseTmpl).toContain('{{ASIDE_SETUP}}');
  });

  test('generated SKILL.md contains operational self-improvement (replaced contributor mode)', () => {
    const content = fs.readFileSync(path.join(ROOT, 'SKILL.md'), 'utf-8');
    expect(content).not.toContain('Contributor Mode');
    expect(content).not.toContain('gstack_contributor');
    expect(content).not.toContain('contributor-logs');
    expect(content).toContain('Operational Self-Improvement');
    expect(content).toContain('gstack-learnings-log');
    // The learnings-resurface call moved from the inline preamble bash into
    // the skill-start script (Phase 1) — same command, new home.
    expect(SKILL_START_SCRIPT).toContain('gstack-learnings-search" --limit 3');
  });

  test('generated SKILL.md with LEARNINGS_LOG contains operational type', () => {
    // Check a skill that has LEARNINGS_LOG (e.g., review)
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('operational');
  });

  test('session awareness lives in gstack-skill-start (registry touch + stale cleanup)', () => {
    // The sessions registry moved from inline preamble bash into the script:
    // it records the harness pid (--parent-pid identity) and expires entries
    // older than 120 minutes.
    expect(SKILL_START_SCRIPT).toContain('sessions/$PARENT_PID');
    expect(SKILL_START_SCRIPT).toContain('-mmin +120');
    // The render keeps the completion-status protocol the sessions feed into.
    const content = fs.readFileSync(path.join(ROOT, 'SKILL.md'), 'utf-8');
    expect(content).toContain('RECOMMENDATION');
  });

  test('branch detection lives in gstack-skill-start and is echoed as BRANCH', () => {
    expect(SKILL_START_SCRIPT).toContain('_BRANCH=$(git branch --show-current');
    expect(SKILL_START_SCRIPT).toContain('echo "BRANCH: $_BRANCH"');
  });

  // #2001: update_check: false silences the binary but the upgrade-handling
  // instruction prose used to ship unconditionally. Token-reduction Phase 2
  // made the gate STRUCTURAL: the prose left the renders entirely (absence is
  // pinned by test/onboarding-moved-literals.test.ts) and now emits from
  // gstack-skill-start's instruction layer ONLY when the update-check binary
  // produced output — and that binary silences itself on update_check=false.
  // Opted-out installs can never see the prose, by construction.
  test('update_check opt-out gates the update binary and upgrade-flow emission (issue #2001)', () => {
    // The config-echo cluster lives in gstack-skill-start: the flag is still
    // read and echoed as a STATUS line for the model.
    expect(SKILL_START_SCRIPT, 'script must read update_check config').toContain('_UPDATE_CHECK=$(');
    expect(SKILL_START_SCRIPT, 'script must echo UPDATE_CHECK').toContain('echo "UPDATE_CHECK: $_UPDATE_CHECK"');
    // Gate half 1: the update-check binary exits silently when opted out.
    const updateCheck = fs.readFileSync(path.join(ROOT, 'bin', 'gstack-update-check'), 'utf-8');
    expect(updateCheck, 'binary must read update_check config').toContain('get update_check');
    expect(updateCheck, 'binary must exit silently on update_check=false')
      .toMatch(/if \[ "\$_UC" = "false" \]; then\n\s*exit 0/);
    // Gate half 2: the upgrade-flow instruction block emits only when the
    // binary emitted something (empty when opted out, cached, or up to date).
    expect(SKILL_START_SCRIPT, 'upgrade-flow must be gated on update-check output')
      .toMatch(/if \[ -n "\$_UPD" \]; then\n\s*_emit_block upgrade-flow/);
  });

  test('tier 2+ skills contain ELI10 simplification rules (AskUserQuestion format)', () => {
    // Root SKILL.md is tier 1 (no AskUserQuestion format). Check a tier 2+ skill instead.
    // v1.7.0.0 Pros/Cons format uses "ELI10 (ALWAYS)" rather than "Simplify (ELI10".
    const content = fs.readFileSync(path.join(ROOT, 'cso', 'SKILL.md'), 'utf-8');
    expect(content).toContain('ELI10');
    expect(content).toContain('plain English');
    expect(content).toContain('not function names');
  });

  test('tier 1 skills do NOT contain AskUserQuestion format', () => {
    // Use benchmark (tier 1) instead of root — root SKILL.md gets overwritten by Codex test setup
    const content = fs.readFileSync(path.join(ROOT, 'benchmark', 'SKILL.md'), 'utf-8');
    expect(content).not.toContain('## AskUserQuestion Format');
    expect(content).not.toContain('## Completeness Principle');
  });

  test('telemetry producer lives in the scripts; render documents the analytics sink', () => {
    // The skill-usage.jsonl producers moved into the scripts (Phase 1).
    expect(SKILL_START_SCRIPT).toContain('analytics/skill-usage.jsonl');
    expect(SKILL_END_SCRIPT).toContain('analytics/skill-usage.jsonl');
    // The render still tells the model where telemetry lands.
    const content = fs.readFileSync(path.join(ROOT, 'SKILL.md'), 'utf-8');
    expect(content).toContain('~/.gstack/analytics');
  });

  test('plan-review generated preambles stay under the Option A budget', () => {
    const reviewSkills = [
      {
        path: path.join(ROOT, 'plan-ceo-review', 'SKILL.md'),
        markers: ['# Mega Plan Review Mode', '## Step 0: Detect platform and base branch'],
      },
      {
        path: path.join(ROOT, 'plan-eng-review', 'SKILL.md'),
        markers: ['# Plan Review Mode'],
      },
    ];

    // Plan skills carry the same preamble surface as other tier-≥2 skills
    // (Artifacts Sync, Context Recovery, Routing Injection are load-bearing
    // functionality, not optional). Budget is set to current size + small
    // headroom; ratchet down if a future slim trims real bytes.
    // Ratcheted from 33000 → 35000 when the gbrain context-load block was
    // added (per /sync-gbrain plan §4). Ratcheted 35000 → 36500 in v1.27.0.0
    // when generate-brain-sync-block.ts gained the gbrain_mcp_mode probe +
    // remote-mode ARTIFACTS_SYNC status line (Path 4 of /setup-gbrain).
    // Ratcheted 36500 → 39000 in the contributor wave when #1205 added the
    // \\u-escape CJK rule (rule 12 + self-check item) to the AskUserQuestion
    // preamble.
    // Ratcheted 39000 → 40000 in plan-tune cathedral T14: question-tuning
    // resolver gained the <gstack-qid:...> marker convention + the
    // (recommended) label requirement (D2 + D18 — both load-bearing for
    // hook enforcement). Adds ~700 bytes.
    // Ratcheted 40000 → 60000 in v1.52.0.0 cap audit: ~20K headroom so
    // future preamble adds don't trip the gate on each PR. Real runaway
    // (preamble doubling) still trips; normal scope growth doesn't.
    for (const skill of reviewSkills) {
      const content = fs.readFileSync(skill.path, 'utf-8');
      const preamble = extractPreambleBeforeWorkflow(content, skill.markers);
      expect(Buffer.byteLength(preamble, 'utf-8')).toBeLessThan(60_000);
    }
  });

  test('voice and writing-style preamble sections stay compact', () => {
    const content = readSkillUnion('plan-eng-review'); // carved: review body moved to section
    const voice = extractMarkdownSection(content, '## Voice');
    const writingStyle = extractMarkdownSection(content, '## Writing Style');

    expect(Buffer.byteLength(voice, 'utf-8')).toBeLessThan(3_000);
    expect(Buffer.byteLength(writingStyle, 'utf-8')).toBeLessThan(2_000);
  });

  test('slim voice section preserves the gstack voice contract', () => {
    const content = readSkillUnion('plan-eng-review'); // carved: review body moved to section
    const voice = extractMarkdownSection(content, '## Voice');

    expect(voice).toMatch(/lead with the point|direct/i);
    expect(voice).toMatch(/file|function|line|command|real numbers/i);
    expect(voice).toMatch(/user.*outcome|user.*experience|real user/i);
    expect(voice).toMatch(/corporate|academic|PR|hype/i);
    expect(voice).toMatch(/AI vocabulary|delve|crucial|robust/i);
    expect(voice).toMatch(/user decides|user.*context|sovereignty|recommendation, not a decision/i);
  });

  test('preamble .pending-* glob is zsh-safe (uses find, not shell glob)', () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      if (!content.includes('.pending-')) continue;
      // Must NOT have a bare shell glob ".pending-*" outside of find's -name argument
      expect(content).not.toMatch(/for _PF in [^\n]*\/\.pending-\*/);
      // Must use find to avoid zsh NOMATCH error on glob expansion
      expect(content).toContain("find ~/.gstack/analytics -maxdepth 1 -name '.pending-*'");
    }
  });

  test('bash blocks with shell globs are zsh-safe (setopt guard or find)', () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      const bashBlocks = [...content.matchAll(/```bash\n([\s\S]*?)```/g)].map(m => m[1]);

      for (const block of bashBlocks) {
        const lines = block.split('\n');

        for (const line of lines) {
          const trimmed = line.trimStart();
          if (trimmed.startsWith('#')) continue;
          if (!trimmed.includes('*')) continue;
          // Skip lines where * is inside find -name, git pathspecs, or $(find)
          if (/\bfind\b/.test(trimmed)) continue;
          if (/\bgit\b/.test(trimmed)) continue;
          if (/\$\(find\b/.test(trimmed)) continue;

          // Check 1: "for VAR in <glob>" must use $(find ...) — caught above by the
          // $(find check, so any surviving for-in with a glob pattern is a violation
          if (/\bfor\s+\w+\s+in\b/.test(trimmed) && /\*\./.test(trimmed)) {
            throw new Error(
              `Unsafe for-in glob in ${skill.dir}/SKILL.md: "${trimmed}". ` +
              `Use \`for f in $(find ... -name '*.ext')\` for zsh compatibility.`
            );
          }

          // Check 2: ls/cat/rm/grep with glob file args must have setopt guard
          const isGlobCmd = /\b(?:ls|cat|rm|grep)\b/.test(trimmed) &&
                            /(?:\/\*[a-z.*]|\*\.[a-z])/.test(trimmed);
          if (isGlobCmd) {
            expect(block).toContain('setopt +o nomatch');
          }
        }
      }
    }
  });

  test('preamble-using skills have correct skill name in telemetry', () => {
    const PREAMBLE_SKILLS = [
      { dir: '.', name: 'gstack' },
      { dir: 'ship', name: 'ship' },
      { dir: 'review', name: 'review' },
      { dir: 'qa', name: 'qa' },
      { dir: 'retro', name: 'retro' },
    ];
    for (const skill of PREAMBLE_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      // The skill name now travels as --skill into gstack-skill-start (the
      // preamble fence) and gstack-skill-end (the telemetry epilogue) — the
      // scripts write it into the JSONL events.
      expect(content, `${skill.dir} preamble fence must pass its own name`)
        .toMatch(new RegExp(`--skill "${skill.name}" --model`));
      expect(content, `${skill.dir} epilogue must pass its own name`)
        .toContain(`gstack-skill-end --skill "${skill.name}"`);
    }
  });

  test('qa and qa-only templates use QA_METHODOLOGY placeholder', () => {
    // qa carve: the macro moved into the section template (the skeleton
    // carries the STOP-Read pointer); qa-only remains an inline monolith.
    const qaSkeletonTmpl = fs.readFileSync(path.join(ROOT, 'qa', 'SKILL.md.tmpl'), 'utf-8');
    expect(qaSkeletonTmpl).toContain('{{SECTION:qa-patterns}}');
    expect(qaSkeletonTmpl).not.toContain('{{QA_METHODOLOGY}}');
    const qaSectionTmpl = fs.readFileSync(path.join(ROOT, 'qa', 'sections', 'qa-patterns.md.tmpl'), 'utf-8');
    expect(qaSectionTmpl).toContain('{{QA_METHODOLOGY}}');

    const qaOnlyTmpl = fs.readFileSync(path.join(ROOT, 'qa-only', 'SKILL.md.tmpl'), 'utf-8');
    expect(qaOnlyTmpl).toContain('{{QA_METHODOLOGY}}');
  });

  test('QA_METHODOLOGY appears expanded in both qa and qa-only generated files', () => {
    const qaContent = readSkillUnion('qa'); // carved: methodology lives in qa/sections/qa-patterns.md
    const qaOnlyContent = fs.readFileSync(path.join(ROOT, 'qa-only', 'SKILL.md'), 'utf-8');

    // Both should contain the health score rubric
    expect(qaContent).toContain('Health Score Rubric');
    expect(qaOnlyContent).toContain('Health Score Rubric');

    // Both should contain framework guidance
    expect(qaContent).toContain('Framework-Specific Guidance');
    expect(qaOnlyContent).toContain('Framework-Specific Guidance');

    // Both should contain the important rules
    expect(qaContent).toContain('Important Rules');
    expect(qaOnlyContent).toContain('Important Rules');

    // Both should contain the 6 phases
    expect(qaContent).toContain('Phase 1');
    expect(qaOnlyContent).toContain('Phase 1');
    expect(qaContent).toContain('Phase 6');
    expect(qaOnlyContent).toContain('Phase 6');
  });

  test('qa-only has no-fix guardrails', () => {
    const qaOnlyContent = fs.readFileSync(path.join(ROOT, 'qa-only', 'SKILL.md'), 'utf-8');
    expect(qaOnlyContent).toContain('Never fix bugs');
    expect(qaOnlyContent).toContain('NEVER fix anything');
    // Should not have Edit, Glob, or Grep in allowed-tools.
    // Scope to frontmatter (between the first two --- lines) — the body can
    // legitimately mention these tool names in prose (e.g., Claude model
    // overlay says "prefer Read, Edit, Write, Glob, Grep over Bash").
    const fmMatch = qaOnlyContent.match(/^---\n([\s\S]*?)\n---/);
    expect(fmMatch).not.toBeNull();
    const frontmatter = fmMatch![1];
    expect(frontmatter).toMatch(/allowed-tools:/);
    expect(frontmatter).not.toMatch(/allowed-tools:[\s\S]*?- Edit/);
    expect(frontmatter).not.toMatch(/allowed-tools:[\s\S]*?- Glob/);
    expect(frontmatter).not.toMatch(/allowed-tools:[\s\S]*?- Grep/);
  });

  test('qa has fix-loop tools and phases', () => {
    const qaContent = fs.readFileSync(path.join(ROOT, 'qa', 'SKILL.md'), 'utf-8');
    // Should have Edit, Glob, Grep in allowed-tools
    expect(qaContent).toContain('Edit');
    expect(qaContent).toContain('Glob');
    expect(qaContent).toContain('Grep');
    // Should have fix-loop phases
    expect(qaContent).toContain('Phase 7');
    expect(qaContent).toContain('Phase 8');
    expect(qaContent).toContain('Fix Loop');
    expect(qaContent).toContain('Triage');
    expect(qaContent).toContain('WTF');
  });
});

describe('BASE_BRANCH_DETECT resolver', () => {
  // Find a generated SKILL.md that uses the placeholder (ship is guaranteed to)
  const shipContent = readShipUnion();

  test('resolver output contains PR base detection command', () => {
    expect(shipContent).toContain('gh pr view --json baseRefName');
  });

  test('resolver output contains repo default branch detection command', () => {
    expect(shipContent).toContain('gh repo view --json defaultBranchRef');
  });

  test('resolver output contains fallback to main', () => {
    expect(shipContent).toMatch(/fall\s*back\s+to\s+`main`/i);
  });

  test('resolver output uses "the base branch" phrasing', () => {
    expect(shipContent).toContain('the base branch');
  });

  test('resolver output contains GitLab CLI commands', () => {
    expect(shipContent).toContain('glab');
  });

  test('resolver output contains git-native fallback', () => {
    expect(shipContent).toContain('git symbolic-ref');
  });

  test('resolver output mentions GitLab platform', () => {
    expect(shipContent).toMatch(/gitlab/i);
  });
});

describe('GitLab support in generated skills', () => {
  const retroContent = fs.readFileSync(path.join(ROOT, 'retro', 'SKILL.md'), 'utf-8');
  const shipSkillContent = readShipUnion();

  test('retro contains GitLab MR number extraction', () => {
    expect(retroContent).toContain('[#!]');
  });

  test('retro uses BASE_BRANCH_DETECT (contains glab)', () => {
    expect(retroContent).toContain('glab');
  });

  test('ship contains glab mr create', () => {
    expect(shipSkillContent).toContain('glab mr create');
  });

  test('ship checks .gitlab-ci.yml', () => {
    expect(shipSkillContent).toContain('.gitlab-ci.yml');
  });
});

/**
 * Quality evals — catch description regressions.
 *
 * These test that generated output is *useful for an AI agent*,
 * not just structurally valid. Each test targets a specific
 * regression we actually shipped and caught in review.
 */
describe('description quality evals', () => {
  // Regression: snapshot flags lost value hints (-d <N>, -s <sel>, -o <path>)
  // Browse carve: the flag reference renders into browse/sections/command-list.md.
  test('snapshot flags with values include value hints in output', () => {
    const content = readSkillUnion('browse');
    for (const flag of SNAPSHOT_FLAGS) {
      if (flag.takesValue) {
        expect(flag.valueHint).toBeDefined();
        expect(content).toContain(`${flag.short} ${flag.valueHint}`);
      }
    }
  });

  // Regression: "is" lost the valid states enum
  test('is command lists valid state values', () => {
    const desc = COMMAND_DESCRIPTIONS['is'].description;
    for (const state of ['visible', 'hidden', 'enabled', 'disabled', 'checked', 'editable', 'focused']) {
      expect(desc).toContain(state);
    }
  });

  // Regression: "press" lost common key examples
  test('press command lists example keys', () => {
    const desc = COMMAND_DESCRIPTIONS['press'].description;
    expect(desc).toContain('Enter');
    expect(desc).toContain('Tab');
    expect(desc).toContain('Escape');
  });

  // Regression: "console" lost --errors filter note
  test('console command describes --errors behavior', () => {
    const desc = COMMAND_DESCRIPTIONS['console'].description;
    expect(desc).toContain('--errors');
  });

  // Regression: snapshot -i lost "@e refs" context
  test('snapshot -i mentions @e refs', () => {
    const flag = SNAPSHOT_FLAGS.find(f => f.short === '-i')!;
    expect(flag.description).toContain('@e');
  });

  // Regression: snapshot -C lost "@c refs" context
  test('snapshot -C mentions @c refs', () => {
    const flag = SNAPSHOT_FLAGS.find(f => f.short === '-C')!;
    expect(flag.description).toContain('@c');
  });

  // Guard: every description must be at least 8 chars (catches empty or stub descriptions)
  test('all command descriptions have meaningful length', () => {
    for (const [cmd, meta] of Object.entries(COMMAND_DESCRIPTIONS)) {
      expect(meta.description.length).toBeGreaterThanOrEqual(8);
    }
  });

  // Guard: snapshot flag descriptions must be at least 10 chars
  test('all snapshot flag descriptions have meaningful length', () => {
    for (const flag of SNAPSHOT_FLAGS) {
      expect(flag.description.length).toBeGreaterThanOrEqual(10);
    }
  });

  // Guard: descriptions must not contain pipe (breaks markdown table cells)
  // Usage strings are backtick-wrapped in the table so pipes there are safe.
  test('no command description contains pipe character', () => {
    for (const [cmd, meta] of Object.entries(COMMAND_DESCRIPTIONS)) {
      expect(meta.description).not.toContain('|');
    }
  });

  // Guard: generated output uses → not ->
  test('generated SKILL.md uses unicode arrows', () => {
    // P2 (v1.2.0): the browse body moved out of the top-level router into
    // browse/SKILL.md. Guard arrow style on the browse body (sliced from its
    // H1 so the auto-generated `-->` header comments are excluded).
    const content = fs.readFileSync(path.join(ROOT, 'browse', 'SKILL.md'), 'utf-8');
    const h1 = content.search(/^# browse: /m);
    expect(h1).toBeGreaterThan(-1);
    const body = content.slice(h1);
    expect(body).toContain('→');
    expect(body).not.toContain('->');
  });
});

describe('REVIEW_DASHBOARD resolver', () => {
  const REVIEW_SKILLS = ['plan-ceo-review', 'plan-eng-review', 'plan-design-review'];

  for (const skill of REVIEW_SKILLS) {
    test(`review dashboard appears in ${skill} generated file`, () => {
      const content = readSkillUnion(skill); // carved skills: union skeleton + sections
      expect(content).toContain('gstack-review');
      expect(content).toContain('REVIEW READINESS DASHBOARD');
    });
  }

  test('review dashboard appears in ship generated file', () => {
    const content = readShipUnion();
    expect(content).toContain('reviews.jsonl');
    expect(content).toContain('REVIEW READINESS DASHBOARD');
  });

  test('dashboard treats review as a valid Eng Review source', () => {
    const content = readShipUnion();
    expect(content).toContain('plan-eng-review, review, plan-design-review');
    expect(content).toContain('`review` (diff-scoped pre-landing review)');
    expect(content).toContain('`plan-eng-review` (plan-stage architecture review)');
    expect(content).toContain('from either \\`review\\` or \\`plan-eng-review\\`');
  });

  test('shared dashboard propagates review source to plan-eng-review', () => {
    const content = readSkillUnion('plan-eng-review'); // carved: review body moved to section
    expect(content).toContain('plan-eng-review, review, plan-design-review');
    expect(content).toContain('`review` (diff-scoped pre-landing review)');
  });

  test('resolver output contains key dashboard elements', () => {
    const content = readSkillUnion('plan-ceo-review'); // carved: dashboard moved to section
    expect(content).toContain('VERDICT');
    expect(content).toContain('CLEARED');
    expect(content).toContain('Eng Review');
    expect(content).toContain('7 days');
    expect(content).toContain('Design Review');
    expect(content).toContain('skip_eng_review');
  });

  test('dashboard bash block includes git HEAD for staleness detection', () => {
    const content = readSkillUnion('plan-ceo-review'); // carved: dashboard moved to section
    expect(content).toContain('git rev-parse --short HEAD');
    expect(content).toContain('---HEAD---');
  });

  test('dashboard includes staleness detection prose', () => {
    const content = readSkillUnion('plan-ceo-review'); // carved: dashboard moved to section
    expect(content).toContain('Staleness detection');
    expect(content).toContain('commit');
  });

  for (const skill of REVIEW_SKILLS) {
    test(`${skill} contains review chaining section`, () => {
      const content = readSkillUnion(skill); // carved skills: union skeleton + sections
      expect(content).toContain('Review Chaining');
    });

    test(`${skill} Review Log includes commit field`, () => {
      const content = readSkillUnion(skill); // carved skills: union skeleton + sections
      expect(content).toContain('"commit"');
    });
  }

  test('plan-ceo-review chaining mentions eng and design reviews', () => {
    // Carved skill: the chaining prose lives in sections/*.md. (It used to
    // pass against the skeleton only because the preamble's routing-injection
    // rules incidentally named these skills — that prose moved into
    // bin/gstack-skill-start in token-reduction Phase 2.)
    const content = readSkillUnion('plan-ceo-review');
    expect(content).toContain('/plan-eng-review');
    expect(content).toContain('/plan-design-review');
  });

  test('plan-eng-review chaining mentions design and ceo reviews', () => {
    const content = readSkillUnion('plan-eng-review'); // carved: review body moved to section
    expect(content).toContain('/plan-design-review');
    expect(content).toContain('/plan-ceo-review');
  });

  test('plan-design-review chaining mentions eng, ceo, and design skills', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('/plan-eng-review');
    expect(content).toContain('/plan-ceo-review');
    expect(content).toContain('/design-shotgun');
    expect(content).toContain('/design-html');
  });

  test('ship does NOT contain review chaining', () => {
    const content = readShipUnion();
    expect(content).not.toContain('Review Chaining');
  });
});

// ─── Test Coverage Audit Resolver Tests ─────────────────────

describe('TEST_COVERAGE_AUDIT placeholders', () => {
  const planSkill = readSkillUnion('plan-eng-review'); // carved
  const shipSkill = readShipUnion();
  const reviewSkill = readSkillUnion('review'); // carved: Review Army moved to sections/review-army.md

  test('plan and ship modes share codepath tracing methodology', () => {
    // Review mode delegates test coverage to the Testing specialist subagent (Review Army)
    const sharedPhrases = [
      'Trace data flow',
      'Diagram the execution',
      'Quality scoring rubric',
      '★★★',
      '★★',
      'GAP',
    ];
    for (const phrase of sharedPhrases) {
      expect(planSkill).toContain(phrase);
      expect(shipSkill).toContain(phrase);
    }
    // Plan mode traces the plan, not a git diff
    expect(planSkill).toContain('Trace every codepath in the plan');
    expect(planSkill).not.toContain('git diff origin');
    // Ship mode traces the diff
    expect(shipSkill).toContain('Trace every codepath changed');
  });

  test('review mode uses Review Army for specialist dispatch', () => {
    expect(reviewSkill).toContain('Review Army');
    expect(reviewSkill).toContain('Specialist Dispatch');
    expect(reviewSkill).toContain('testing.md');
  });

  test('plan and ship modes include E2E decision matrix', () => {
    // Review mode delegates to Testing specialist
    for (const skill of [planSkill, shipSkill]) {
      expect(skill).toContain('E2E Test Decision Matrix');
      expect(skill).toContain('→E2E');
      expect(skill).toContain('→EVAL');
    }
  });

  test('plan and ship modes include regression rule', () => {
    // Review mode delegates to Testing specialist
    for (const skill of [planSkill, shipSkill]) {
      expect(skill).toContain('REGRESSION RULE');
      expect(skill).toContain('IRON RULE');
    }
  });

  test('plan and ship modes include test framework detection', () => {
    // Review mode delegates to Testing specialist
    for (const skill of [planSkill, shipSkill]) {
      expect(skill).toContain('Test Framework Detection');
      expect(skill).toContain('CLAUDE.md');
    }
  });

  test('plan mode adds tests to plan + includes test plan artifact', () => {
    expect(planSkill).toContain('Add missing tests to the plan');
    expect(planSkill).toContain('eng-review-test-plan');
    expect(planSkill).toContain('Test Plan Artifact');
  });

  test('ship mode auto-generates tests + includes before/after count', () => {
    expect(shipSkill).toContain('Generate tests for uncovered paths');
    expect(shipSkill).toContain('Before/after test count');
    expect(shipSkill).toContain('30 code paths max');
    expect(shipSkill).toContain('ship-test-plan');
  });

  test('review mode uses Fix-First + Review Army for specialist coverage', () => {
    expect(reviewSkill).toContain('Fix-First');
    expect(reviewSkill).toContain('INFORMATIONAL');
    // Review Army handles test coverage via Testing specialist subagent
    expect(reviewSkill).toContain('Review Army');
    expect(reviewSkill).toContain('Testing');
  });

  test('plan mode does NOT include ship-specific content', () => {
    expect(planSkill).not.toContain('Before/after test count');
    expect(planSkill).not.toContain('30 code paths max');
    expect(planSkill).not.toContain('ship-test-plan');
  });

  test('review mode does NOT include test plan artifact', () => {
    expect(reviewSkill).not.toContain('Test Plan Artifact');
    expect(reviewSkill).not.toContain('eng-review-test-plan');
    expect(reviewSkill).not.toContain('ship-test-plan');
  });

  test('review/specialists/ directory has all expected checklist files', () => {
    const specDir = path.join(ROOT, 'review', 'specialists');
    const expected = [
      'testing.md',
      'maintainability.md',
      'security.md',
      'performance.md',
      'data-migration.md',
      'api-contract.md',
      'simplification.md',
      'red-team.md',
    ];
    for (const f of expected) {
      expect(fs.existsSync(path.join(specDir, f))).toBe(true);
    }
  });

  // Regression pins for the simplification specialist (advisory carve-out edits
  // the pre-existing quality_score instruction, so the rendered contract is
  // pinned statically — the carve-out and the early-out line must both survive
  // regeneration verbatim).
  test('simplification advisory carve-out and early-out render into review docs', () => {
    const reviewArmySection = fs.readFileSync(
      path.join(ROOT, 'review', 'sections', 'review-army.md'),
      'utf-8',
    );
    expect(reviewArmySection).toContain('"advisory": true');
    expect(reviewArmySection).toContain('quality score over NON-advisory findings only');
    expect(reviewArmySection).toContain('Simplification: lean already — nothing to cut.');
    expect(reviewArmySection).toContain('net: -N lines possible');
    expect(reviewArmySection).toContain('--simplification');
    // The specialist itself must never carry a verdict-shaped zero-findings line.
    const spec = fs.readFileSync(
      path.join(ROOT, 'review', 'specialists', 'simplification.md'),
      'utf-8',
    );
    expect(spec).toContain('NO FINDINGS');
    expect(spec).not.toContain('Lean already. Ship.');
    // Closed tag vocabulary: the disavowed yagni: frame must not appear.
    expect(spec).toContain('speculative');
    expect(spec.toLowerCase()).not.toContain('"yagni"');
  });

  test('each specialist file has standard header with scope and output format', () => {
    const specDir = path.join(ROOT, 'review', 'specialists');
    const files = fs.readdirSync(specDir).filter(f => f.endsWith('.md'));
    for (const f of files) {
      const content = fs.readFileSync(path.join(specDir, f), 'utf-8');
      // All specialist files must have Scope and Output/JSON in header
      expect(content).toContain('Scope:');
      expect(content.toLowerCase()).toMatch(/output|json/);
      // Must define NO FINDINGS behavior
      expect(content).toContain('NO FINDINGS');
    }
  });

  // Regression guard: ship output contains key phrases from before the refactor
  test('ship SKILL.md regression guard — key phrases preserved', () => {
    const regressionPhrases = [
      '100% coverage is the goal',
      'ASCII coverage diagram',
      'processPayment',
      'refundPayment',
      'billing.test.ts',
      'checkout.e2e.ts',
      'COVERAGE:',
      'QUALITY:',
      'GAPS:',
      'Code paths:',
      'User flows:',
    ];
    for (const phrase of regressionPhrases) {
      expect(shipSkill).toContain(phrase);
    }
  });

  test('ship SKILL.md contains review army specialist dispatch', () => {
    expect(shipSkill).toContain('Specialist Dispatch');
    expect(shipSkill).toContain('Step 9.1');
    expect(shipSkill).toContain('Step 9.2');
  });

  test('ship SKILL.md contains cross-review finding dedup', () => {
    expect(shipSkill).toContain('Cross-review finding dedup');
    expect(shipSkill).toContain('Step 9.3');
  });

  test('ship SKILL.md contains re-run idempotency behavior', () => {
    expect(shipSkill).toContain('Re-run behavior (idempotency)');
    expect(shipSkill).toContain('Never skip a verification step');
  });
});

// --- {{TEST_FAILURE_TRIAGE}} resolver tests ---

describe('TEST_FAILURE_TRIAGE resolver', () => {
  const shipSkill = readShipUnion();

  test('contains all 4 triage steps', () => {
    expect(shipSkill).toContain('Step T1: Classify each failure');
    expect(shipSkill).toContain('Step T2: Handle in-branch failures');
    expect(shipSkill).toContain('Step T3: Handle pre-existing failures');
    expect(shipSkill).toContain('Step T4: Execute the chosen action');
  });

  test('T1 includes classification criteria (in-branch vs pre-existing)', () => {
    expect(shipSkill).toContain('In-branch');
    expect(shipSkill).toContain('Likely pre-existing');
    expect(shipSkill).toContain('git diff origin/');
  });

  test('T3 branches on REPO_MODE (solo vs collaborative)', () => {
    expect(shipSkill).toContain('REPO_MODE');
    expect(shipSkill).toContain('solo');
    expect(shipSkill).toContain('collaborative');
  });

  test('solo mode offers fix-now, TODO, and skip options', () => {
    expect(shipSkill).toContain('Investigate and fix now');
    expect(shipSkill).toContain('Add as P0 TODO');
    expect(shipSkill).toContain('Skip');
  });

  test('collaborative mode offers blame + assign option', () => {
    expect(shipSkill).toContain('Blame + assign GitHub issue');
    expect(shipSkill).toContain('gh issue create');
  });

  test('defaults ambiguous failures to in-branch (safety)', () => {
    expect(shipSkill).toContain('When ambiguous, default to in-branch');
  });
});

// --- {{PLAN_FILE_REVIEW_REPORT}} resolver tests ---

describe('PLAN_FILE_REVIEW_REPORT resolver', () => {
  const REVIEW_SKILLS = ['plan-ceo-review', 'plan-eng-review', 'plan-design-review', 'codex'];

  for (const skill of REVIEW_SKILLS) {
    test(`plan file review report appears in ${skill} generated file`, () => {
      const content = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      expect(content).toContain('GSTACK REVIEW REPORT');
    });
  }

  test('resolver output contains key report elements', () => {
    const content = readSkillUnion('plan-ceo-review'); // carved: report writer moved to section
    expect(content).toContain('Trigger');
    expect(content).toContain('Findings');
    expect(content).toContain('VERDICT');
    expect(content).toContain('/plan-ceo-review');
    expect(content).toContain('/plan-eng-review');
    expect(content).toContain('/plan-design-review');
    expect(content).toContain('/codex review');
  });
});

// --- {{PLAN_COMPLETION_AUDIT}} resolver tests ---

describe('PLAN_COMPLETION_AUDIT placeholders', () => {
  const shipSkill = readShipUnion();
  const reviewSkill = readSkillUnion('review'); // carved: plan-completion audit moved to sections/plan-completion.md

  test('ship SKILL.md contains plan completion audit step', () => {
    expect(shipSkill).toContain('Plan Completion Audit');
    expect(shipSkill).toContain('Step 8');
  });

  test('review SKILL.md contains plan completion in scope drift', () => {
    expect(reviewSkill).toContain('Plan File Discovery');
    expect(reviewSkill).toContain('Actionable Item Extraction');
    expect(reviewSkill).toContain('Integration with Scope Drift Detection');
  });

  test('both modes share plan file discovery methodology', () => {
    expect(shipSkill).toContain('Plan File Discovery');
    expect(reviewSkill).toContain('Plan File Discovery');
    // Both should have conversation context first
    expect(shipSkill).toContain('Conversation context (primary)');
    expect(reviewSkill).toContain('Conversation context (primary)');
    // Both should have grep fallback
    expect(shipSkill).toContain('Content-based search (fallback)');
    expect(reviewSkill).toContain('Content-based search (fallback)');
  });

  test('ship mode has gate logic for NOT DONE items', () => {
    expect(shipSkill).toContain('NOT DONE');
    expect(shipSkill).toContain('Stop — implement the missing items');
    expect(shipSkill).toContain('Ship anyway — defer');
    expect(shipSkill).toContain('intentionally dropped');
  });

  test('review mode is INFORMATIONAL only', () => {
    expect(reviewSkill).toContain('INFORMATIONAL');
    expect(reviewSkill).toContain('MISSING REQUIREMENTS');
    expect(reviewSkill).toContain('SCOPE CREEP');
  });

  test('item extraction has 50-item cap', () => {
    expect(shipSkill).toContain('at most 50 items');
  });

  test('uses file-level traceability (not commit-level)', () => {
    expect(shipSkill).toContain('Cite the specific file');
    expect(shipSkill).not.toContain('commit-level traceability');
  });
});

// --- {{PLAN_VERIFICATION_EXEC}} resolver tests ---

describe('PLAN_VERIFICATION_EXEC placeholder', () => {
  const shipSkill = readShipUnion();

  test('ship SKILL.md contains plan verification step', () => {
    expect(shipSkill).toContain('Step 8.1');
    expect(shipSkill).toContain('Plan Verification');
  });

  test('references /qa-only invocation', () => {
    expect(shipSkill).toContain('qa-only/SKILL.md');
    expect(shipSkill).toContain('qa-only');
  });

  test('contains dev-server discovery (CLAUDE.md first, then a port probe)', () => {
    // Fork port wave 2: the hardcoded 4-port list became read-CLAUDE.md-or-
    // probe; the probe loops common ports instead of naming each once.
    expect(shipSkill).toContain('CLAUDE.md first');
    expect(shipSkill).toContain('http://localhost:$_p');
    expect(shipSkill).toContain('NO_SERVER');
  });

  test('skips gracefully when no verification section', () => {
    expect(shipSkill).toContain('No verification steps found in plan');
  });

  test('skips gracefully when no dev server', () => {
    expect(shipSkill).toContain('No dev server detected');
  });
});

// --- Coverage gate tests ---

describe('Coverage gate in ship', () => {
  const shipSkill = readShipUnion();
  const reviewSkill = readSkillUnion('review'); // carved: testing.md specialist ref lives in sections/review-army.md

  test('ship SKILL.md contains coverage gate with thresholds', () => {
    expect(shipSkill).toContain('Coverage gate');
    expect(shipSkill).toContain('>= target');
    expect(shipSkill).toContain('< minimum');
  });

  test('ship SKILL.md supports configurable thresholds via CLAUDE.md', () => {
    expect(shipSkill).toContain('## Test Coverage');
    expect(shipSkill).toContain('Minimum:');
    expect(shipSkill).toContain('Target:');
  });

  test('coverage gate skips on parse failure (not block)', () => {
    expect(shipSkill).toContain('could not determine percentage — skipping');
  });

  test('review SKILL.md delegates coverage to Testing specialist', () => {
    // Coverage audit moved to Testing specialist subagent in Review Army
    expect(reviewSkill).toContain('testing.md');
    expect(reviewSkill).toContain('INFORMATIONAL');
  });
});

// --- Ship metrics logging ---

describe('Ship metrics logging', () => {
  const shipSkill = readShipUnion();

  test('ship SKILL.md contains metrics persistence step', () => {
    expect(shipSkill).toContain('Step 20');
    expect(shipSkill).toContain('coverage_pct');
    expect(shipSkill).toContain('plan_items_total');
    expect(shipSkill).toContain('plan_items_done');
    expect(shipSkill).toContain('verification_result');
  });
});

// --- Plan file discovery shared helper ---

describe('Plan file discovery shared helper', () => {
  // The shared helper should appear in ship (via PLAN_COMPLETION_AUDIT_SHIP)
  // and in review (via PLAN_COMPLETION_AUDIT_REVIEW)
  const shipSkill = readShipUnion();
  const reviewSkill = readSkillUnion('review'); // carved: plan-completion audit moved to sections/plan-completion.md

  test('plan file discovery appears in both ship and review', () => {
    expect(shipSkill).toContain('Plan File Discovery');
    expect(reviewSkill).toContain('Plan File Discovery');
  });

  test('both include conversation context first', () => {
    expect(shipSkill).toContain('Conversation context (primary)');
    expect(reviewSkill).toContain('Conversation context (primary)');
  });

  test('both include content-based fallback', () => {
    expect(shipSkill).toContain('Content-based search (fallback)');
    expect(reviewSkill).toContain('Content-based search (fallback)');
  });
});

// --- Retro plan completion ---

describe('Retro plan completion section', () => {
  // Carved: the narrative report format (incl. Plan Completion) lives in
  // retro/sections/report-format.md — read the skeleton+sections union.
  const retroSkill = readSkillUnion('retro');

  test('retro SKILL.md contains plan completion section', () => {
    expect(retroSkill).toContain('### Plan Completion');
    expect(retroSkill).toContain('plan_items_total');
    expect(retroSkill).toContain('Plan Completion This Period');
  });
});

// --- Plan status footer in preamble ---

describe('Plan status footer in preamble', () => {
  test('preamble contains plan status footer as neutral forward reference to EXIT PLAN MODE GATE', () => {
    // Read any skill that uses PREAMBLE
    const content = readSkillUnion('office-hours'); // carved: Phase 5/6 prose moved to section
    expect(content).toContain('Plan Status Footer');
    expect(content).toContain('GSTACK REVIEW REPORT');
    expect(content).toContain('ExitPlanMode');
    expect(content).toContain('EXIT PLAN MODE GATE');
    // The preamble must NOT impose review-report rules on operational skills
    // that have no review report. It's a forward reference, not enforcement.
    expect(content).not.toContain('NO REVIEWS YET');
  });
});

// --- make-pdf setup ordering ---

describe('make-pdf setup ordering', () => {
  test('MAKE-PDF SETUP appears before generic preamble footer sections', () => {
    const content = fs.readFileSync(path.join(ROOT, 'make-pdf', 'SKILL.md'), 'utf-8');
    const preambleIdx = content.indexOf('## Preamble (run first)');
    const setupIdx = content.indexOf('## MAKE-PDF SETUP');
    const planModeIdx = content.indexOf('## Plan Mode Safe Operations');
    const telemetryIdx = content.indexOf('## Telemetry (run last)');
    const workflowIdx = content.indexOf('# make-pdf: publication-quality PDFs from markdown');

    expect(preambleIdx).toBeGreaterThanOrEqual(0);
    expect(setupIdx).toBeGreaterThan(preambleIdx);
    expect(setupIdx).toBeLessThan(planModeIdx);
    expect(setupIdx).toBeLessThan(telemetryIdx);
    expect(setupIdx).toBeLessThan(workflowIdx);
    expect(content.match(/^## MAKE-PDF SETUP/gm)?.length ?? 0).toBe(1);
  });
});

// --- Skill invocation during plan mode in preamble ---

describe('Skill invocation during plan mode in preamble', () => {
  test('preamble contains skill invocation plan mode section', () => {
    const content = readSkillUnion('office-hours'); // carved: Phase 5/6 prose moved to section
    expect(content).toContain('Skill Invocation During Plan Mode');
    expect(content).toContain('precedence over generic plan mode behavior');
    expect(content).toContain('Do not continue the workflow');
    expect(content).toContain('cancel the skill or leave plan mode');
  });
});

// --- {{SPEC_REVIEW_LOOP}} resolver tests ---

describe('SPEC_REVIEW_LOOP resolver', () => {
  const content = readSkillUnion('office-hours'); // carved: Phase 5/6 prose moved to section

  test('contains all 5 review dimensions', () => {
    for (const dim of ['Completeness', 'Consistency', 'Clarity', 'Scope', 'Feasibility']) {
      expect(content).toContain(dim);
    }
  });

  test('references Agent tool for subagent dispatch', () => {
    expect(content).toMatch(/Agent.*tool/i);
  });

  test('specifies max 3 iterations', () => {
    expect(content).toMatch(/3.*iteration|maximum.*3/i);
  });

  test('includes quality score', () => {
    expect(content).toContain('quality score');
  });

  test('includes metrics path', () => {
    expect(content).toContain('spec-review.jsonl');
  });

  test('includes convergence guard', () => {
    expect(content).toMatch(/[Cc]onvergence/);
  });

  test('includes graceful failure handling', () => {
    expect(content).toMatch(/skip.*review|unavailable/i);
  });
});

// --- {{DESIGN_SKETCH}} resolver tests ---

describe('DESIGN_SKETCH resolver', () => {
  const content = readSkillUnion('office-hours'); // carved: Phase 5/6 prose moved to section

  test('references DESIGN.md for design system constraints', () => {
    expect(content).toContain('DESIGN.md');
  });

  test('contains wireframe or sketch terminology', () => {
    expect(content).toMatch(/wireframe|sketch/i);
  });

  test('wireframes render through gstack-render (Aside first)', () => {
    expect(content).toContain('gstack-render.ts');
  });

  test('references screenshot capture', () => {
    expect(content).toContain('--screenshot');
  });

  test('specifies rough aesthetic', () => {
    expect(content).toMatch(/[Rr]ough|hand-drawn/);
  });

  test('includes skip conditions', () => {
    expect(content).toMatch(/no UI component|skip/i);
  });
});

// --- {{CODEX_SECOND_OPINION}} resolver tests ---

describe('CODEX_SECOND_OPINION resolver', () => {
  const content = readSkillUnion('office-hours'); // carved: Phase 5/6 prose moved to section
  const codexContent = fs.readFileSync(path.join(EXTERNAL_OUT, '.agents', 'skills', 'gstack-office-hours', 'SKILL.md'), 'utf-8');

  test('Phase 3.5 section appears in office-hours SKILL.md', () => {
    expect(content).toContain('Phase 3.5: Cross-Model Second Opinion');
  });

  test('contains codex exec invocation', () => {
    expect(content).toContain('codex exec');
  });

  test('contains opt-in AskUserQuestion text', () => {
    expect(content).toContain('second opinion from an independent AI perspective');
  });

  test('contains cross-model synthesis instructions', () => {
    expect(content).toMatch(/[Ss]ynthesis/);
    expect(content).toContain('Where Claude agrees with the second opinion');
  });

  test('contains Claude subagent fallback', () => {
    expect(content).toContain('CODEX_NOT_AVAILABLE');
    expect(content).toContain('Agent tool');
    expect(content).toContain('SECOND OPINION (Claude subagent)');
  });

  test('contains premise revision check', () => {
    expect(content).toContain('Codex challenged premise');
  });

  test('contains error handling for auth, timeout, and empty', () => {
    expect(content).toMatch(/[Aa]uth.*fail/);
    expect(content).toMatch(/[Tt]imeout/);
    expect(content).toMatch(/[Ee]mpty response/);
  });

  test('Codex host variant does NOT contain the Phase 3.5 resolver output', () => {
    // The resolver returns '' for codex host, so the interactive section is stripped.
    // Static template references to "Phase 3.5" in prose/conditionals are fine.
    // Other resolvers (design review lite) may contain CODEX_NOT_AVAILABLE, so we
    // check for Phase 3.5-specific markers only.
    expect(codexContent).not.toContain('Phase 3.5: Cross-Model Second Opinion');
    expect(codexContent).not.toContain('TMPERR_OH');
    expect(codexContent).not.toContain('gstack-codex-oh-');
  });
});

// --- Codex filesystem boundary tests ---

describe('Codex filesystem boundary', () => {
  // Skills that call codex exec/review and should contain boundary text
  const CODEX_CALLING_SKILLS = [
    'codex',         // /codex skill — 3 modes
    'autoplan',      // /autoplan — CEO/design/eng voices
    'review',        // /review — adversarial step resolver
    'ship',          // /ship — adversarial step resolver
    'plan-eng-review',  // outside voice resolver
    'plan-ceo-review',  // outside voice resolver
    'office-hours',     // second opinion resolver
  ];

  const BOUNDARY_MARKER = 'Do NOT read or execute any';

  test('boundary instruction appears in all skills that call codex', () => {
    for (const skill of CODEX_CALLING_SKILLS) {
      // Union: ship's codex call lives in sections/adversarial.md after the carve.
      const content = readSkillUnion(skill);
      expect(content).toContain(BOUNDARY_MARKER);
    }
  });

  test('codex skill has Filesystem Boundary section', () => {
    const content = fs.readFileSync(path.join(ROOT, 'codex', 'SKILL.md'), 'utf-8');
    expect(content).toContain('## Filesystem Boundary');
    expect(content).toContain('skill definitions meant for a different AI system');
  });

  test('codex skill has rabbit-hole detection rule', () => {
    const content = fs.readFileSync(path.join(ROOT, 'codex', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Detect skill-file rabbit holes');
    expect(content).toContain('gstack-update-check');
    expect(content).toContain('Consider retrying');
  });

  test('review.ts CODEX_BOUNDARY constant is interpolated into resolver output', () => {
    // The adversarial step resolver should include boundary text in codex exec
    // prompts. Carved: the adversarial step lives in sections/adversarial.md.
    const reviewContent = readSkillUnion('review');
    // Boundary should appear near codex exec invocations
    const boundaryIdx = reviewContent.indexOf(BOUNDARY_MARKER);
    const codexExecIdx = reviewContent.indexOf('codex exec');
    // Both must exist and boundary must come before a codex exec call
    expect(boundaryIdx).toBeGreaterThan(-1);
    expect(codexExecIdx).toBeGreaterThan(-1);
  });

  test('autoplan boundary text avoids host-specific paths for cross-host compatibility', () => {
    const content = fs.readFileSync(path.join(ROOT, 'autoplan', 'SKILL.md.tmpl'), 'utf-8');
    // autoplan template uses generic 'skills/gstack' pattern instead of host-specific
    // paths like ~/.claude/ or .agents/skills (which break Codex/Claude output tests)
    const boundaryStart = content.indexOf('Filesystem Boundary');
    const boundaryEnd = content.indexOf('---', boundaryStart + 1);
    const boundarySection = content.slice(boundaryStart, boundaryEnd);
    expect(boundarySection).not.toContain('~/.claude/');
    expect(boundarySection).not.toContain('.agents/skills');
    expect(boundarySection).toContain('skills/gstack');
    expect(boundarySection).toContain(BOUNDARY_MARKER);
  });
});

// --- {{BENEFITS_FROM}} resolver tests ---

describe('BENEFITS_FROM resolver', () => {
  const ceoContent = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md'), 'utf-8');
  const engContent = readSkillUnion('plan-eng-review'); // carved

  test('plan-ceo-review contains prerequisite skill offer', () => {
    expect(ceoContent).toContain('Prerequisite Skill Offer');
    expect(ceoContent).toContain('/office-hours');
  });

  test('plan-eng-review contains prerequisite skill offer', () => {
    expect(engContent).toContain('Prerequisite Skill Offer');
    expect(engContent).toContain('/office-hours');
  });

  test('offer includes graceful decline', () => {
    expect(ceoContent).toContain('No worries');
  });

  test('skills without benefits-from do NOT have prerequisite offer', () => {
    const qaContent = fs.readFileSync(path.join(ROOT, 'qa', 'SKILL.md'), 'utf-8');
    expect(qaContent).not.toContain('Prerequisite Skill Offer');
  });

  test('inline invocation — no "another window" language', () => {
    expect(ceoContent).not.toContain('another window');
    expect(engContent).not.toContain('another window');
  });

  test('inline invocation — read-and-follow path present', () => {
    expect(ceoContent).toContain('office-hours/SKILL.md');
    expect(engContent).toContain('office-hours/SKILL.md');
  });

  test('BENEFITS_FROM delegates to INVOKE_SKILL pattern', () => {
    // Should contain the INVOKE_SKILL-style loading prose (not the old manual skip list)
    expect(engContent).toContain('Follow its instructions from top to bottom');
    expect(engContent).toContain('skipping these sections');
    expect(ceoContent).toContain('Follow its instructions from top to bottom');
  });
});

// --- {{INVOKE_SKILL}} resolver tests ---

describe('INVOKE_SKILL resolver', () => {
  const ceoContent = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md'), 'utf-8');

  test('plan-ceo-review uses INVOKE_SKILL for mid-session office-hours fallback', () => {
    // The mid-session detection path should use INVOKE_SKILL-generated prose
    expect(ceoContent).toContain('office-hours/SKILL.md');
    expect(ceoContent).toContain('Follow its instructions from top to bottom');
  });

  test('INVOKE_SKILL output includes default skip list', () => {
    expect(ceoContent).toContain('Preamble (run first)');
    expect(ceoContent).toContain('Telemetry (run last)');
    expect(ceoContent).toContain('AskUserQuestion Format');
  });

  test('INVOKE_SKILL output includes error handling', () => {
    expect(ceoContent).toContain('If unreadable');
    expect(ceoContent).toContain('Could not load');
  });

  test('template uses {{INVOKE_SKILL:office-hours}} placeholder', () => {
    const tmpl = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md.tmpl'), 'utf-8');
    expect(tmpl).toContain('{{INVOKE_SKILL:office-hours}}');
  });
});

// --- {{CHANGELOG_WORKFLOW}} resolver tests ---

describe('CHANGELOG_WORKFLOW resolver', () => {
  const shipContent = readShipUnion();

  test('ship SKILL.md contains changelog workflow', () => {
    expect(shipContent).toContain('CHANGELOG (auto-generate)');
    expect(shipContent).toContain('git log <base>..HEAD --oneline');
  });

  test('changelog workflow includes cross-check step', () => {
    expect(shipContent).toContain('Cross-check');
    expect(shipContent).toContain('Every commit must map to at least one bullet point');
  });

  test('changelog workflow includes voice guidance', () => {
    expect(shipContent).toContain('Lead with what the user can now **do**');
  });

  test('template uses {{CHANGELOG_WORKFLOW}} placeholder', () => {
    // Post-carve (T9): the skeleton points to the changelog section, which carries
    // the resolver. Neither should inline the old changelog content.
    const skel = fs.readFileSync(path.join(ROOT, 'ship', 'SKILL.md.tmpl'), 'utf-8');
    const changelogSection = fs.readFileSync(path.join(ROOT, 'ship', 'sections', 'changelog.md.tmpl'), 'utf-8');
    expect(skel).toContain('{{SECTION:changelog}}');
    expect(changelogSection).toContain('{{CHANGELOG_WORKFLOW}}');
    expect(skel + changelogSection).not.toContain('Group commits by theme');
  });

  test('changelog workflow includes keep-changelog format', () => {
    expect(shipContent).toContain('### Added');
    expect(shipContent).toContain('### Fixed');
  });
});

// --- Duplicate {{PREAMBLE}} guard (#2508/#2362) ---

describe('assertSinglePreamble', () => {
  test('one {{PREAMBLE}} passes', () => {
    expect(() => assertSinglePreamble('a\n{{PREAMBLE}}\nb', 'x/SKILL.md.tmpl')).not.toThrow();
  });

  test('zero {{PREAMBLE}} passes (sections have none)', () => {
    expect(() => assertSinglePreamble('no macro here', 'x/sections/y.md.tmpl')).not.toThrow();
  });

  test('a second occurrence throws with the template path — even in prose', () => {
    // The original #2508 bug WAS a prose mention: "emitted by {{PREAMBLE}}'s
    // preamble bash". Resolution is context-blind, so the guard must be too.
    const tmpl = '{{PREAMBLE}}\n\n...later: emitted by {{PREAMBLE}}\'s preamble bash';
    expect(() => assertSinglePreamble(tmpl, 'spec/SKILL.md.tmpl')).toThrow(/spec\/SKILL\.md\.tmpl.*2 times/);
  });
});

// --- Parameterized resolver infrastructure tests ---

describe('parameterized resolver support', () => {
  test('gen-skill-docs regex handles colon-separated args', () => {
    // Verify the template containing {{INVOKE_SKILL:office-hours}} was processed
    // without leaving unresolved placeholders
    const ceoContent = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md'), 'utf-8');
    expect(ceoContent).not.toMatch(/\{\{INVOKE_SKILL:[^}]+\}\}/);
  });

  test('templates with parameterized resolvers pass unresolved check', () => {
    // All generated SKILL.md files should have no unresolved {{...}} placeholders
    const skillDirs = fs.readdirSync(ROOT).filter(d =>
      fs.existsSync(path.join(ROOT, d, 'SKILL.md'))
    );
    for (const dir of skillDirs) {
      const content = fs.readFileSync(path.join(ROOT, dir, 'SKILL.md'), 'utf-8');
      const unresolved = content.match(/\{\{[A-Z_]+(?::[^}]*)?\}\}/g);
      if (unresolved) {
        throw new Error(`${dir}/SKILL.md has unresolved placeholders: ${unresolved.join(', ')}`);
      }
    }
  });
});

// --- Preamble routing injection tests ---

describe('preamble routing injection (bin/gstack-skill-start emission layer)', () => {
  // Token-reduction Phase 2: the routing-injection prose left the rendered
  // preamble entirely — bin/gstack-skill-start probes, gates, and emits the
  // whole flow as a GSTACK_INSTRUCTION block (with the AUQ, the routing rules
  // to append, and the decline ack all INSIDE the block). Absence from the
  // renders is pinned by test/onboarding-moved-literals.test.ts (tombstone);
  // this suite pins the gate structure and the emitted block's content.
  const routingBlock = (() => {
    const start = SKILL_START_SCRIPT.indexOf('_emit_block routing-injection');
    expect(start).toBeGreaterThan(0);
    return SKILL_START_SCRIPT.slice(start, SKILL_START_SCRIPT.indexOf('\nEOI', start));
  })();

  test('routing probe checks CLAUDE.md and AGENTS.md (now in gstack-skill-start)', () => {
    // #2500: the probe iterates CLAUDE.md AND AGENTS.md — non-Claude hosts
    // route skills via AGENTS.md, the cross-harness convention file.
    expect(SKILL_START_SCRIPT).toContain('for _RF in CLAUDE.md AGENTS.md');
    expect(SKILL_START_SCRIPT).toContain('grep -q "## Skill routing" "$_RF"');
    expect(SKILL_START_SCRIPT).toContain('echo "HAS_ROUTING: $_HAS_ROUTING"');
  });

  test('script reads and echoes routing_declined config', () => {
    expect(SKILL_START_SCRIPT).toMatch(/_ROUTING_DECLINED=\$\("\$_BIN\/gstack-config" get routing_declined/);
    expect(SKILL_START_SCRIPT).toContain('echo "ROUTING_DECLINED: $_ROUTING_DECLINED"');
  });

  test('emitted block carries the routing injection AskUserQuestion', () => {
    expect(routingBlock).toContain('Add routing rules to CLAUDE.md');
    expect(routingBlock).toContain("I'll invoke skills manually");
  });

  test('routing injection respects prior decline (gate + in-block ack)', () => {
    expect(SKILL_START_SCRIPT).toContain('[ "$_ROUTING_DECLINED" = "false" ]');
    expect(routingBlock).toMatch(/routing_declined.*true/);
    expect(routingBlock).toContain('re-enable with `__BIN__/gstack-config set routing_declined false`');
  });

  test('routing injection only fires when all conditions met', () => {
    // Must be: HAS_ROUTING=no AND ROUTING_DECLINED=false AND PROACTIVE_PROMPTED=yes
    expect(SKILL_START_SCRIPT).toContain(
      'if [ "$_HAS_ROUTING" = "no" ] && [ "$_ROUTING_DECLINED" = "false" ] && [ "$_PROACTIVE_PROMPTED" = "yes" ]; then',
    );
  });

  test('routing section content includes key routing rules', () => {
    expect(routingBlock).toContain('invoke /office-hours');
    expect(routingBlock).toContain('invoke /investigate');
    expect(routingBlock).toContain('invoke /ship');
    expect(routingBlock).toContain('invoke /qa');
  });

  test('routing section uses renamed checkpoint skills (not stale /checkpoint)', () => {
    expect(routingBlock).toContain('invoke /context-save');
    expect(routingBlock).toContain('invoke /context-restore');
    expect(routingBlock).not.toContain('invoke checkpoint');
  });

  test('routing section uses soft "when in doubt" policy, not hard "ALWAYS invoke"', () => {
    expect(routingBlock).toContain('When in doubt, invoke the skill');
    expect(routingBlock).not.toContain('Do NOT answer directly');
  });
});

// --- {{DESIGN_OUTSIDE_VOICES}} resolver tests ---

describe('DESIGN_OUTSIDE_VOICES resolver', () => {
  test('plan-design-review contains outside voices section', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Design Outside Voices');
    expect(content).toContain('CODEX_AVAILABLE');
    expect(content).toContain('LITMUS SCORECARD');
  });

  test('design-review contains outside voices section', () => {
    const content = fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Design Outside Voices');
    expect(content).toContain('source audit');
  });

  test('design-consultation contains outside voices section', () => {
    const content = fs.readFileSync(path.join(ROOT, 'design-consultation', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Design Outside Voices');
    expect(content).toContain('design direction');
  });

  test('branches correctly per skillName — different prompts', () => {
    const planContent = readSkillUnion('plan-design-review');
    const consultContent = fs.readFileSync(path.join(ROOT, 'design-consultation', 'SKILL.md'), 'utf-8');
    // plan-design-review uses analytical prompt (high reasoning)
    expect(planContent).toContain('model_reasoning_effort="high"');
    // design-consultation uses creative prompt (medium reasoning)
    expect(consultContent).toContain('model_reasoning_effort="medium"');
  });
});

// --- {{DESIGN_HARD_RULES}} resolver tests ---

describe('DESIGN_HARD_RULES resolver', () => {
  test('plan-design-review Pass 4 contains hard rules', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Design Hard Rules');
    expect(content).toContain('Classifier');
    expect(content).toContain('MARKETING/LANDING PAGE');
    expect(content).toContain('APP UI');
  });

  test('design-review contains hard rules', () => {
    const content = fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Design Hard Rules');
  });

  test('includes all 3 rule sets', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Landing page rules');
    expect(content).toContain('App UI rules');
    expect(content).toContain('Universal rules');
  });

  test('classifier names the four visitor modes and keeps the legacy aliases', () => {
    const content = readSkillUnion('plan-design-review');
    for (const mode of ['PERSUADE', 'OPERATE', 'READ', 'EXPERIENCE', 'HYBRID']) expect(content).toContain(`**${mode}**`);
    expect(content).toContain('Read rules');
    expect(content).toContain('Experience rules');
    expect(content).toContain('classify per section, not per page');
  });

  test('carries the craft-floor reflexes and the three-looks calibration', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Reflexes no detector catches');
    expect(content).toContain('Browser surfaces carry the design');
    expect(content).toContain('One authored motion moment');
    expect(content).toContain('Depth has an offset');
    expect(content).toContain('Light or dark comes from the use scene');
    expect(content).toContain('Calibration: the three looks');
  });

  test('slop section lists detector rule ids and judgment tells outside design-review', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Detector rule ids for the rest of the catalog');
    expect(content).toContain('nested-cards: Nested cards');
    expect(content).toContain('Judgment tells with no detector rule');
    // Never a bracketed gstack-only id.
    expect(content).not.toContain('[hero-metrics]');
  });

  test('design-consultation carries the font procedure, role-scoped lists, color strategies, and catalog bullets', () => {
    const content = readSkillUnion('design-consultation');
    expect(content).toContain('Choosing faces: a procedure, not a menu');
    expect(content).toContain('**Overused as display**');
    expect(content).toContain('Fine as body/UI on an Operate or Read surface');
    expect(content).toContain('**Banned in any role:** Papyrus');
    expect(content).toContain('Restrained (1 accent + neutrals');
    expect(content).toContain('Drenched (color as the primary design tool');
    expect(content).toContain('Light vs dark is not one of the dials');
    expect(content).toContain('Calibration: the three looks');
    // Bullets are prose only: never a bracketed rule id in the proposal skill.
    expect(content).toContain('- A card inside a card is always wrong.');
    expect(content).not.toMatch(/^- \[[a-z-]+\] /m);
    // The old menu is gone.
    expect(content).not.toContain('Font recommendations by purpose');
  });

  test('design-html blacklist lines carry catalog ids', () => {
    const content = fs.readFileSync(path.join(ROOT, 'design-html', 'SKILL.md'), 'utf-8');
    expect(content).toContain('**Never include by default (AI slop blacklist):**');
    expect(content).toContain('Purple/blue gradients as default <!-- ai-color-palette -->');
    expect(content).toContain('lib/design-catalog.ts');
  });

  test('design-review renders the catalog once: Methodology category 9 carries it, Hard Rules points at it', () => {
    const content = fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8');
    expect(content.split('### Design Hard Rules').length - 1).toBe(1);
    // Category 9 lists the rule once (ids only); Typography points at the same id from its overused-face item.
    expect(content.split('[overused-font]').length - 1).toBe(2);
    expect(content).toContain('are Methodology category 9');
    expect(content).toContain('**9. AI Slop Detection**');
    expect(content).toContain('Detector rules (ids only;');
    expect(content).toContain('[nested-cards] nested cards');
    expect(content).toContain('Judgment tells (no detector rule');
    // The legacy blacklist is not repeated as a numbered list in design-review.
    expect(content).not.toMatch(/^1\. Purple\/violet\/indigo/m);
  });

  test('references shared AI slop blacklist items', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('3-column feature grid');
    expect(content).toContain('Purple/violet/indigo');
  });

  test('includes OpenAI hard rejection criteria', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Generic SaaS card grid');
    expect(content).toContain('Carousel with no narrative purpose');
  });

  test('includes OpenAI litmus checks', () => {
    const content = readSkillUnion('plan-design-review');
    expect(content).toContain('Brand/product unmistakable');
    expect(content).toContain('premium with all decorative shadows removed');
  });
});

// --- {{DESIGN_DETECTOR}} resolver tests ---

describe('DESIGN_DETECTOR resolver', () => {
  const designReview = () => fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8');
  const designHtml = () => fs.readFileSync(path.join(ROOT, 'design-html', 'SKILL.md'), 'utf-8');
  const bashBlocksOf = (content: string) => [...content.matchAll(/```bash\n([\s\S]*?)```/g)].map(m => m[1]);

  test('design-review carries the probe, Phase 0, the DOM dump, and the run id', () => {
    const c = designReview();
    expect(c).toContain('gstack-design-detect.ts probe --host claude');
    expect(c).toContain('IMPECCABLE_READY');
    // the consent-gated install: offered once, only on the probe's say-so, never in spawned sessions, never via npx
    expect(c).toContain('DESIGN_DETECTOR_INSTALL_OFFER');
    expect(c).toContain('gstack-design-detect.ts install --host claude');
    expect(c).toContain("Install impeccable's design detector engine?");
    expect(c).toContain('gstack-config set design_detector_install_prompted true');
    expect(c).toContain('`SESSION_KIND: spawned` or a headless run, never install and never ask');
    expect(c).toContain('**Phase 0: mechanical scan**');
    expect(c).toContain('scan --changed <base> --format gstack --host claude');
    expect(c).toContain('### DOM dump (DOM mode only');
    expect(c).toContain('data-gstack-dom-css');
    expect(c).toContain(`$B js '('"$_DUMP"')()' --out "$_TMP/{page}.dom.html" --raw`);
    expect(c).toContain('DOM_DUMP_OK');
    expect(c).toContain('DOM_DUMP_REDACTION_BLOCKED');
    expect(c).toContain('DOM_DUMP_TOO_LARGE');
    expect(c).toContain('REPORT_DIR="${GSTACK_HOME:-$HOME/.gstack}/projects/$SLUG/designs/design-audit-$(date +%Y%m%d)"');
    expect(c).toContain('RUN_ID="$(date +%H%M%S)-$$"');
    expect(c).toContain('"schemaVersion": 2');
    expect(c).toContain('engine changed X → Y; rule set may differ');
    expect(c).toContain('Detector: N → M');
    expect(c).toContain('/impeccable typeset');
  });

  test('the DOM-dump script is loaded from lib/dom-dump.js, never inlined in the prose', () => {
    const c = designReview();
    expect(c).not.toMatch(/```js\n/);
    expect(c).not.toContain('document.documentElement.cloneNode');
    expect(c).toContain('_DUMP=$(cat "$HOME/.claude/skills/gstack/lib/dom-dump.js")');
    expect(c).toContain(`const html = await pg.evaluate('"$_DUMP"');`);
    expect(c).toContain('_TMP=$(mktemp -d); _DUMP=$(cat "$HOME/.claude/skills/gstack/lib/dom-dump.js")');
  });

  test('every rendered Aside script is single-quoted: a page-controlled <url> is never inside a double-quoted bash string', () => {
    const files = [...fs.readdirSync(ROOT).filter(d => fs.existsSync(path.join(ROOT, d, 'SKILL.md'))).map(d => path.join(ROOT, d, 'SKILL.md')),
      ...fs.readdirSync(ROOT).flatMap(d => fs.existsSync(path.join(ROOT, d, 'sections')) ? fs.readdirSync(path.join(ROOT, d, 'sections')).filter(f => f.endsWith('.md')).map(f => path.join(ROOT, d, 'sections', f)) : [])];
    expect(files.length).toBeGreaterThan(10);
    for (const f of files) {
      const c = fs.readFileSync(f, 'utf-8');
      expect(c, path.relative(ROOT, f)).not.toMatch(/^aside repl "/m);
    }
  });

  test('the E2E fixture slice markers exist in the rendered design skills (a template rename fails here, not in paid CI)', () => {
    const dr = designReview();
    const dh = fs.readFileSync(path.join(ROOT, 'design-html', 'SKILL.md'), 'utf-8');
    for (const [a, b] of [['**Design detector (optional, deterministic):**', '**Create output directories:**'], ['**Phase 0: mechanical scan**', '## Phases 1-6'], ['### DOM dump (DOM mode only', '### Auth Detection']]) {
      expect(sliceBetween(dr, a, b).length, `${a} .. ${b}`).toBeGreaterThan(100);
    }
    for (const [a, b] of [['**Design detector (optional, deterministic):**', '## Step 0: Input Detection'], ['### Slop Gate (bounded, never a loop)', '### Verification Screenshots']]) {
      expect(sliceBetween(dh, a, b).length, `${a} .. ${b}`).toBeGreaterThan(100);
    }
  });

  test('design-html carries the probe and the bounded slop gate', () => {
    const c = designHtml();
    expect(c).toContain('gstack-design-detect.ts probe --host claude');
    expect(c).toContain('### Slop Gate (bounded, never a loop)');
    expect(c).toContain('One pass, not a loop.');
    expect(c).toContain('impeccable-disable <rule>: <reason>');
  });

  test('ship and review unions reach the detector through review-lite and the checklist', () => {
    const ship = readSkillUnion('ship');
    expect(ship).toContain('**Mechanical pass first.**');
    expect(ship).toContain('scan --changed <base> --format gstack --host claude');
    expect(ship).toContain('"detector":D');
    expect(ship).toContain('Detector: "clean" | "N findings');
    const review = readSkillUnion('review');
    expect(review).toContain('run the mechanical pass at the top of that checklist');
    const checklist = fs.readFileSync(path.join(ROOT, 'review', 'design-checklist.md'), 'utf-8');
    expect(checklist).toContain('**0. Mechanical pass first.**');
    expect(checklist).toContain('IMPECCABLE_READY');
  });

  test('every rendered invocation uses bun --no-env-file and ends a scan with the exit echo; no bash block runs npx impeccable', () => {
    for (const content of [designReview(), designHtml(), readSkillUnion('ship'), readSkillUnion('review'), fs.readFileSync(path.join(ROOT, 'review', 'design-checklist.md'), 'utf-8')]) {
      for (const block of bashBlocksOf(content)) {
        expect(block).not.toContain('npx impeccable');
        for (const line of block.split('\n')) {
          if (!line.includes('gstack-design-detect.ts')) continue;
          expect(line).toContain('bun --no-env-file run ');
          if (/gstack-design-detect\.ts scan /.test(line)) expect(line).toContain('echo "DETECT_EXIT_CODE=$?"');
        }
      }
    }
  });

  test('--host is rendered per host', () => {
    // Fresh codex render into a temp out-dir: the tracked tree is Claude-only and
    // the gitignored .agents/ copy may be stale.
    const out = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-detector-host-'));
    try {
      const r = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'codex', '--out-dir', out], { cwd: ROOT, timeout: 120_000 });
      expect(r.exitCode).toBe(0);
      const codex = fs.readFileSync(path.join(out, '.agents', 'skills', 'gstack-design-review', 'SKILL.md'), 'utf-8');
      expect(codex).toContain('gstack-design-detect.ts probe --host codex');
      expect(codex).not.toContain('probe --host claude');
      expect(codex).toContain('$GSTACK_ROOT/lib/dom-dump.js');
    } finally {
      fs.rmSync(out, { recursive: true, force: true });
    }
  });
});

// --- {{DESIGN_MD_CHECK}} resolver + open DESIGN.md adoption ---

describe('DESIGN_MD_CHECK resolver and open DESIGN.md adoption', () => {
  test('design-consultation asks the conversion question once and writes the spec form', () => {
    const c = readSkillUnion('design-consultation');
    expect(c).toContain('gstack-design-md.ts check DESIGN.md');
    expect(c).toContain('DESIGN_MD_FORMAT: spec');
    expect(c).toContain('mark legacy-keep');
    expect(c).toContain('convert --write');
    expect(c).toContain('# gstack: design-md-format=spec');
    expect(c).toContain("## Do's and Don'ts");
    expect(c).toContain('## Elevation & Depth');
    expect(c).toContain('fontFeature: tnum');
    expect(c).toContain('"{colors.primary}"');
    // the legacy template is gone
    expect(c).not.toContain('## Product Context\n- **What this is:**');
  });

  test('design-review calibrates against tokens and never re-offers conversion; design-html writes the spec form', () => {
    const dr = fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8');
    expect(dr).toContain('gstack-design-md.ts check DESIGN.md');
    expect(dr).toContain('gstack-design-md.ts tokens DESIGN.md');
    expect(dr).toContain('never offer a conversion here');
    expect(dr).not.toContain('mark legacy-keep');
    const dh = fs.readFileSync(path.join(ROOT, 'design-html', 'SKILL.md'), 'utf-8');
    expect(dh).toContain('# gstack: design-md-format=spec');
    const pdr = readSkillUnion('plan-design-review');
    expect(pdr).toContain('{colors.primary}');
    const checklist = fs.readFileSync(path.join(ROOT, 'review', 'design-checklist.md'), 'utf-8');
    expect(checklist).toContain('gstack-design-md.ts tokens DESIGN.md');
    expect(readSkillUnion('ship')).toContain('gstack-design-md.ts tokens DESIGN.md');
  });

  test('every rendered gstack-design-md invocation uses bun --no-env-file', () => {
    for (const content of [readSkillUnion('design-consultation'), fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8'), readSkillUnion('ship')]) {
      for (const line of content.split('\n')) {
        if (line.includes('gstack-design-md.ts')) expect(line).toContain('bun --no-env-file run ');
      }
    }
  });
});

// --- PRODUCT.md prefill + /impeccable handoffs ---

describe('PRODUCT.md prefill and /impeccable handoffs', () => {
  test('design-consultation and design-shotgun read PRODUCT.md and never open the impeccable skill', () => {
    for (const skill of ['design-consultation', 'design-shotgun']) {
      const c = readSkillUnion(skill);
      expect(c).toContain('cat PRODUCT.md 2>/dev/null | head -120 || echo "NO_PRODUCT_MD"');
      expect(c).toContain('do not re-ask');
      expect(c).toContain('Never open `.claude/skills/impeccable/**`');
    }
  });

  test('handoffs are gated on IMPECCABLE_SKILL: present in review-lite and design-review', () => {
    expect(readSkillUnion('ship')).toContain('IMPECCABLE_SKILL: present`, end each NEEDS INPUT detector row with the `handoff=` command');
    const dr = fs.readFileSync(path.join(ROOT, 'design-review', 'SKILL.md'), 'utf-8');
    expect(dr).toContain('a deferred one ends with its `handoff=` command when `IMPECCABLE_SKILL: present`');
    expect(dr).toContain('skip every detector step, including `/impeccable` handoff lines');
  });
});

// --- Extended DESIGN_SKETCH resolver tests ---

describe('DESIGN_SKETCH extended with outside voices', () => {
  const content = readSkillUnion('office-hours'); // carved: Phase 5/6 prose moved to section

  test('contains outside design voices step', () => {
    expect(content).toContain('Outside design voices');
  });

  test('offers opt-in via AskUserQuestion', () => {
    expect(content).toContain('outside design perspectives');
  });

  test('still contains original wireframe steps', () => {
    expect(content).toContain('wireframe');
    expect(content).toContain('gstack-render.ts');
  });
});

// --- Extended DESIGN_REVIEW_LITE resolver tests ---

describe('DESIGN_REVIEW_LITE extended with Codex', () => {
  const content = readShipUnion();

  test('contains Codex design voice block', () => {
    expect(content).toContain('Codex design voice');
    expect(content).toContain('CODEX (design)');
  });

  test('still contains original checklist steps', () => {
    expect(content).toContain('design-checklist.md');
    expect(content).toContain('SCOPE_FRONTEND');
  });

  test('design-checklist path uses installed gstack/review root (#2694)', () => {
    // #2694: generateDesignReviewLite used to emit
    // `.claude/skills/review/design-checklist.md` (missing the gstack/ segment).
    // After install the file lives at ~/.claude/skills/gstack/review/design-checklist.md.
    // The bad relative form must not appear — the good path does not contain it
    // as a substring because `gstack/` sits between `skills/` and `review/`.
    expect(content).toContain('~/.claude/skills/gstack/review/design-checklist.md');
    expect(content).not.toContain('.claude/skills/review/design-checklist.md');
  });

});

// ─── Codex Generation Tests ─────────────────────────────────

describe('Codex generation (--host codex)', () => {
  // .agents/ is gitignored (v0.11.2.0) — read the module-level out-dir render
  // (--host all covers codex) instead of regenerating the live tree in place.
  const AGENTS_DIR = path.join(EXTERNAL_OUT, '.agents', 'skills');

  // Dynamic discovery of expected Codex skills: all templates except /codex.
  // The out-dir is a fresh mkdtemp, so the vendored-dev-mode symlink loop
  // (.agents/skills/{name} → repo root) that made the generator skip skills
  // in-place can never occur here — every template renders.
  const CODEX_SKILLS = (() => {
    const skills: Array<{ dir: string; codexName: string }> = [];
    if (fs.existsSync(path.join(ROOT, 'SKILL.md.tmpl'))) {
      skills.push({ dir: '.', codexName: 'gstack' });
    }
    for (const entry of fs.readdirSync(ROOT, { withFileTypes: true })) {
      if (!entry.isDirectory() || entry.name.startsWith('.') || entry.name === 'node_modules') continue;
      if (entry.name === 'codex') continue; // /codex is excluded from Codex output
      if (!fs.existsSync(path.join(ROOT, entry.name, 'SKILL.md.tmpl'))) continue;
      const codexName = entry.name.startsWith('gstack-') ? entry.name : `gstack-${entry.name}`;
      skills.push({ dir: entry.name, codexName });
    }
    return skills;
  })();

  test('--host codex generates correct output paths', () => {
    for (const skill of CODEX_SKILLS) {
      const skillMd = path.join(AGENTS_DIR, skill.codexName, 'SKILL.md');
      expect(fs.existsSync(skillMd)).toBe(true);
    }
  });

  test('root gstack bundle has OpenAI metadata for Codex skill browsing', () => {
    const rootMetadata = path.join(ROOT, 'agents', 'openai.yaml');
    expect(fs.existsSync(rootMetadata)).toBe(true);
    const content = fs.readFileSync(rootMetadata, 'utf-8');
    expect(content).toContain('display_name: "gstack"');
    expect(content).toContain('Use $gstack to locate the bundled gstack skills.');
    expect(content).toContain('allow_implicit_invocation: true');
  });

  test('externalSkillName mapping: root is gstack, others are gstack-{dir}', () => {
    // Root → gstack
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack', 'SKILL.md'))).toBe(true);
    // Subdirectories → gstack-{dir}
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack-review', 'SKILL.md'))).toBe(true);
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack-ship', 'SKILL.md'))).toBe(true);
    // gstack-upgrade doesn't double-prefix
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack-upgrade', 'SKILL.md'))).toBe(true);
    // No double-prefix: gstack-gstack-upgrade must NOT exist
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack-gstack-upgrade', 'SKILL.md'))).toBe(false);
  });

  test('Codex frontmatter has ONLY name + description', () => {
    for (const skill of CODEX_SKILLS) {
      const content = fs.readFileSync(path.join(AGENTS_DIR, skill.codexName, 'SKILL.md'), 'utf-8');
      expect(content.startsWith('---\n')).toBe(true);
      const fmEnd = content.indexOf('\n---', 4);
      expect(fmEnd).toBeGreaterThan(0);
      const frontmatter = content.slice(4, fmEnd);
      // Must have name and description
      expect(frontmatter).toContain('name:');
      expect(frontmatter).toContain('description:');
      // Must NOT have allowed-tools, version, or hooks
      expect(frontmatter).not.toContain('allowed-tools:');
      expect(frontmatter).not.toContain('version:');
      expect(frontmatter).not.toContain('hooks:');
    }
  });

  test('all Codex skills have agents/openai.yaml metadata', () => {
    for (const skill of CODEX_SKILLS) {
      const metadata = path.join(AGENTS_DIR, skill.codexName, 'agents', 'openai.yaml');
      expect(fs.existsSync(metadata)).toBe(true);
      const content = fs.readFileSync(metadata, 'utf-8');
      expect(content).toContain(`display_name: "${skill.codexName}"`);
      expect(content).toContain('short_description:');
      expect(content).toContain('allow_implicit_invocation: true');
    }
  });

  test('no .claude/skills/ in Codex output', () => {
    for (const skill of CODEX_SKILLS) {
      const content = fs.readFileSync(path.join(AGENTS_DIR, skill.codexName, 'SKILL.md'), 'utf-8');
      expect(content).not.toContain('.claude/skills');
    }
  });

  test('no ~/.claude/ paths in Codex output', () => {
    for (const skill of CODEX_SKILLS) {
      const content = fs.readFileSync(path.join(AGENTS_DIR, skill.codexName, 'SKILL.md'), 'utf-8');
      expect(content).not.toContain('~/.claude/');
    }
  });

  test('/codex skill excluded from Codex output', () => {
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack-codex', 'SKILL.md'))).toBe(false);
    expect(fs.existsSync(path.join(AGENTS_DIR, 'gstack-codex'))).toBe(false);
  });

  test('Codex output includes Claude outside-voice skill with read-only boundary', () => {
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-claude', 'SKILL.md'), 'utf-8');
    expect(content).toContain('claude -p');
    expect(content).toContain('mktemp /tmp/gstack-claude-prompt-');
    expect(content).toContain('mktemp /tmp/gstack-claude-response-XXXXXX');
    expect(content).toContain('mktemp /tmp/gstack-claude-error-XXXXXX');
    expect(content).toContain('mktemp /tmp/gstack-claude-diff-');
    expect(content).not.toMatch(/gstack-claude-(?:prompt|response|error|diff)-X{6,}\.\w+/);
    expect(content).not.toContain('/tmp/gstack-claude-diff-$$');
    expect(content).toContain('cat "$PROMPT_FILE" | "$CLAUDE_BIN" -p');
    expect(content).toContain('Resolve the binary and invoke it in the same host execution context');
    expect(content).toContain('--disable-slash-commands');
    expect(content).toContain('--tools ""');
    expect(content).toContain('--allowedTools Read,Grep,Glob');
    expect(content).toContain('--disallowedTools Bash,Edit,Write');
    expect(content).toContain('Do not infer authentication state from credential files');
    expect(content).toContain('run the actual `claude -p`');
    expect(content).not.toContain('AUTH_MISSING');
    expect(content).not.toContain('$HOME/.claude/.credentials.json');
    expect(content).toContain('is_error');
  });

  test('Claude temp file templates are accepted by host mktemp', () => {
    for (const template of [
      '/tmp/gstack-claude-prompt-XXXXXX',
      '/tmp/gstack-claude-response-XXXXXX',
      '/tmp/gstack-claude-error-XXXXXX',
      '/tmp/gstack-claude-diff-XXXXXX',
    ]) {
      const result = spawnSync('mktemp', [template], { encoding: 'utf-8', timeout: 30_000 });
      expect(result.status).toBe(0);
      const created = result.stdout.trim();
      expect(created.startsWith(template.replace('XXXXXX', ''))).toBe(true);
      fs.unlinkSync(created);
    }
  });

  test('Codex review step stripped from Codex-host ship and review', () => {
    const shipContent = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-ship', 'SKILL.md'), 'utf-8');
    expect(shipContent).not.toContain('codex review --base');
    expect(shipContent).not.toContain('CODEX_REVIEWS');

    const reviewContent = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-review', 'SKILL.md'), 'utf-8');
    expect(reviewContent).not.toContain('codex review --base');
    expect(reviewContent).not.toContain('CODEX_REVIEWS');
  });

  test('--host codex --dry-run freshness', () => {
    // Dry-run against the out-dir render: determinism/idempotency check
    // (regenerating produces the same bytes the module-level render did).
    const result = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'codex', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT,
      stdout: 'pipe',
      stderr: 'pipe',
      timeout: 120_000,
    });
    expect(result.exitCode).toBe(0);
    const output = result.stdout.toString();
    // Every Codex skill should be FRESH
    for (const skill of CODEX_SKILLS) {
      expect(output).toContain(`FRESH: .agents/skills/${skill.codexName}/SKILL.md`);
    }
    expect(output).not.toContain('STALE');
  });

  test('--host agents alias produces same output as --host codex', () => {
    const codexResult = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'codex', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT,
      stdout: 'pipe',
      stderr: 'pipe',
      timeout: 120_000,
    });
    const agentsResult = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'agents', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT,
      stdout: 'pipe',
      stderr: 'pipe',
      timeout: 120_000,
    });
    expect(codexResult.exitCode).toBe(0);
    expect(agentsResult.exitCode).toBe(0);
    // Both should produce the same output (same FRESH lines)
    expect(codexResult.stdout.toString()).toBe(agentsResult.stdout.toString());
  });

  test('multiline descriptions preserved in Codex output', () => {
    // office-hours has a multiline description — verify it survives the frontmatter transform
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-office-hours', 'SKILL.md'), 'utf-8');
    const fmEnd = content.indexOf('\n---', 4);
    const frontmatter = content.slice(4, fmEnd);
    // Description should span multiple lines (block scalar)
    const descLines = frontmatter.split('\n').filter(l => l.startsWith('  '));
    expect(descLines.length).toBeGreaterThan(1);
    // Verify key phrases survived
    expect(frontmatter).toContain('YC Office Hours');
  });

  test('hook skills have safety prose and no hooks: in frontmatter', () => {
    const HOOK_SKILLS = ['gstack-careful', 'gstack-freeze', 'gstack-guard'];
    for (const skillName of HOOK_SKILLS) {
      const content = fs.readFileSync(path.join(AGENTS_DIR, skillName, 'SKILL.md'), 'utf-8');
      // Must have safety advisory prose
      expect(content).toContain('Safety Advisory');
      // Must NOT have hooks: in frontmatter
      const fmEnd = content.indexOf('\n---', 4);
      const frontmatter = content.slice(4, fmEnd);
      expect(frontmatter).not.toContain('hooks:');
    }
  });

  test('all Codex SKILL.md files have auto-generated header', () => {
    for (const skill of CODEX_SKILLS) {
      const content = fs.readFileSync(path.join(AGENTS_DIR, skill.codexName, 'SKILL.md'), 'utf-8');
      expect(content).toContain('AUTO-GENERATED from SKILL.md.tmpl');
      expect(content).toContain('Regenerate: bun run gen:skill-docs');
    }
  });

  test('Codex preamble resolves runtime assets from repo-local or global gstack roots', () => {
    // Check a skill that has a preamble (review is a good candidate)
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('GSTACK_ROOT');
    expect(content).toContain('$_ROOT/.agents/skills/gstack');
    // Phase 1/2: config reads moved into gstack-skill-start — the fence itself
    // is the bin asset the preamble must resolve through $GSTACK_BIN, and the
    // question-preference runtime call still resolves the same way.
    expect(content).toContain('$GSTACK_BIN/gstack-skill-start');
    expect(content).toContain('$GSTACK_BIN/gstack-question-preference');
    // The upgrade-skill doc reference moved into the script's upgrade-flow
    // block, resolved $0-relative ($_ROOT_DIR) — host-neutral by construction,
    // so the Codex render no longer needs its own copy.
    expect(SKILL_START_SCRIPT).toContain('$_ROOT_DIR/gstack-upgrade/SKILL.md');
    expect(SKILL_START_SCRIPT).toContain('_ROOT_DIR=$(dirname "$_BIN")');
    expect(content).not.toContain('~/.codex/skills/gstack/bin/gstack-config get telemetry');
  });

  // ─── Path rewriting regression tests ─────────────────────────

  test('sidecar paths resolve through $GSTACK_ROOT (not gstack-review/)', () => {
    // #2518: templates now anchor sidecars at the installed skill root
    // (~/.claude/skills/gstack/review/...), which the codex path rewrite turns
    // into $GSTACK_ROOT/review/... — resolved by the preamble against the
    // repo-local .agents root or the global install. The old repo-relative
    // form (.claude/skills/review/) only resolved inside gstack's own checkout.
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('$GSTACK_ROOT/review/checklist.md');
    // design-checklist.md is now referenced via Review Army specialist (Claude only, stripped for Codex)
    // Wrong: must NOT reference gstack-review/checklist.md (file doesn't exist there)
    expect(content).not.toContain('.agents/skills/gstack-review/checklist.md');
  });

  test('sidecar paths in ship skill point to gstack/review/ for pre-landing review', () => {
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-ship', 'SKILL.md'), 'utf-8');
    // Ship references the review checklist in its pre-landing review step
    if (content.includes('checklist.md')) {
      expect(content).toContain('.agents/skills/gstack/review/');
      expect(content).not.toContain('.agents/skills/gstack-review/checklist');
    }
  });

  test('greptile-triage sidecar path is correct', () => {
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-review', 'SKILL.md'), 'utf-8');
    if (content.includes('greptile-triage')) {
      expect(content).toContain('$GSTACK_ROOT/review/greptile-triage.md');
      expect(content).not.toContain('.agents/skills/gstack-review/greptile-triage');
    }
  });

  test('all four path rewrite rules produce correct output', () => {
    // Test each of the 4 path rewrite rules individually
    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-review', 'SKILL.md'), 'utf-8');

    // Rule 1: ~/.claude/skills/gstack → $GSTACK_ROOT
    expect(content).not.toContain('~/.claude/skills/gstack');
    expect(content).toContain('$GSTACK_ROOT');

    // Rule 2: .claude/skills/gstack → .agents/skills/gstack
    expect(content).not.toContain('.claude/skills/gstack');

    // Rule 3: .claude/skills/review → .agents/skills/gstack/review
    expect(content).not.toContain('.claude/skills/review');

    // Rule 4: .claude/skills → .agents/skills (catch-all)
    expect(content).not.toContain('.claude/skills');
  });

  test('path rewrite rules apply to all Codex skills with sidecar references', () => {
    // Verify across ALL generated skills, not just review
    for (const skill of CODEX_SKILLS) {
      const content = fs.readFileSync(path.join(AGENTS_DIR, skill.codexName, 'SKILL.md'), 'utf-8');
      // No skill should reference Claude paths
      expect(content).not.toContain('~/.claude/skills');
      expect(content).not.toContain('.claude/skills');
      if (content.includes('gstack-config') || content.includes('gstack-update-check') || content.includes('gstack-telemetry-log')) {
        expect(content).toContain('$GSTACK_ROOT');
      }
      // If a skill references checklist.md, it must use the correct sidecar path
      if (content.includes('checklist.md') && !content.includes('design-checklist.md')) {
        expect(content).not.toContain('gstack-review/checklist.md');
      }
    }
  });

  // ─── Claude output regression guard ─────────────────────────

  test('Claude output uses installed-root review paths (#2518)', () => {
    // Codex changes must NOT affect Claude output; the Claude form is the
    // installed-root anchor, not the old repo-relative path that only
    // resolved inside gstack's own checkout.
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('~/.claude/skills/gstack/review/checklist.md');
    expect(content).toContain('~/.claude/skills/gstack');
    // Must NOT contain Codex HOST paths. `~/.codex/sessions/` is exempt: the
    // timeout-wrapper guidance documents the Codex CLI's own rollout-log
    // location (a user-facing CLI path, same class as ~/.codex/logs/ in the
    // codex skill), not the gstack Codex host install path.
    // `~/.codex/config.toml` is the same user-facing class: the shared
    // codexPreflight's model_unusable branch (#2477) points at the CLI's own
    // config file, where the rejected `model =` pin lives.
    expect(content).not.toContain('.agents/skills');
    expect(
      content
        .replaceAll('~/.codex/sessions/', '')
        .replaceAll('~/.codex/config.toml', ''),
    ).not.toContain('~/.codex/');
  });

  test('Claude output unchanged: ship skill still uses .claude/skills/ paths', () => {
    const content = readShipUnion();
    expect(content).toContain('~/.claude/skills/gstack');
    expect(content).not.toContain('.agents/skills');
    // ~/.codex/sessions/ is the Codex CLI's rollout-log path (user-facing),
    // documented by the adversarial-pass timeout guidance; ~/.codex/config.toml
    // is the CLI's own config file (model_unusable guidance, #2477) — see the
    // review test above.
    expect(
      content
        .replaceAll('~/.codex/sessions/', '')
        .replaceAll('~/.codex/config.toml', ''),
    ).not.toContain('~/.codex/');
  });

  test('Claude output unchanged: all Claude skills have zero Codex paths', () => {
    for (const skill of CLAUDE_GENERATED_SKILLS) {
      const content = fs.readFileSync(path.join(ROOT, skill.dir, 'SKILL.md'), 'utf-8');
      // pair-agent legitimately documents how Codex agents store credentials.
      // codex + autoplan document the Codex CLI auth file (~/.codex/auth.json)
      // and log path (~/.codex/logs/) — those are user-facing Codex CLI paths,
      // not the gstack Codex host install path. ~/.codex/sessions/ (rollout
      // logs, referenced by the review/ship timeout guidance) and
      // ~/.codex/config.toml (the model_unusable guidance in the shared
      // codexPreflight, #2477) are the same user-facing class, so they are
      // scrubbed before the ban.
      if (skill.dir !== 'pair-agent' && skill.dir !== 'codex' && skill.dir !== 'autoplan') {
        expect(
          content
            .replaceAll('~/.codex/sessions/', '')
            .replaceAll('~/.codex/config.toml', ''),
        ).not.toContain('~/.codex/');
      }
      // gstack-upgrade legitimately references .agents/skills for cross-platform detection
      if (skill.dir !== 'gstack-upgrade') {
        expect(content).not.toContain('.agents/skills');
      }
    }
  });

  // ─── Design outside voices: Codex host guard ─────────────────

  test('codex host produces empty outside voices in design-review', () => {
    const codexContent = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-design-review', 'SKILL.md'), 'utf-8');
    expect(codexContent).not.toContain('Design Outside Voices');
  });

  test('codex host does not include Codex design block in ship', () => {
    const codexContent = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-ship', 'SKILL.md'), 'utf-8');
    expect(codexContent).not.toContain('Codex design voice');
  });

  // ─── Explicit --model override wins over the host default ────
  // Without --model the codex host renders its defaultModel (gpt) — pinned by
  // the golden test. This pins the OTHER direction through the real CLI:
  // `./setup --host codex --model <id>` depends on it. The override renders
  // into its OWN out-dir, so no restore pass is needed — the host-default
  // render (EXTERNAL_OUT) is untouched and asserted directly.
  test('explicit --model overrides the codex host default', () => {
    const overrideOut = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-model-override-'));
    try {
      const override = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'codex', '--model', 'claude', '--out-dir', overrideOut], {
        cwd: ROOT,
        stdout: 'pipe',
        stderr: 'pipe',
        timeout: 120_000,
      });
      expect(override.exitCode).toBe(0);
      const content = fs.readFileSync(path.join(overrideOut, '.agents', 'skills', 'gstack-ship', 'SKILL.md'), 'utf-8');
      expect(content).toContain('Model-Specific Behavioral Patch (claude)');
      // The overlay now travels as --model into gstack-skill-start, which
      // echoes MODEL_OVERLAY at runtime.
      expect(content).toContain('--model "claude"');
    } finally {
      fs.rmSync(overrideOut, { recursive: true, force: true });
    }
    // Host-default direction: the untouched EXTERNAL_OUT render carries gpt.
    const hostDefault = fs.readFileSync(path.join(AGENTS_DIR, 'gstack-ship', 'SKILL.md'), 'utf-8');
    expect(hostDefault).toContain('Model-Specific Behavioral Patch (gpt)');
    expect(hostDefault).toContain('--model "gpt"');
  });
});

// ─── Factory generation tests ────────────────────────────────

describe('Factory generation (--host factory)', () => {
  // .factory/ is gitignored — read the module-level out-dir render
  // (--host all covers factory) instead of regenerating in place.
  const FACTORY_DIR = path.join(EXTERNAL_OUT, '.factory', 'skills');

  // Fresh out-dir → the vendored-dev-mode symlink loop can never occur, so
  // every template renders (see the Codex discovery note above).
  const FACTORY_SKILLS = (() => {
    const skills: Array<{ dir: string; factoryName: string }> = [];
    if (fs.existsSync(path.join(ROOT, 'SKILL.md.tmpl'))) {
      skills.push({ dir: '.', factoryName: 'gstack' });
    }
    for (const entry of fs.readdirSync(ROOT, { withFileTypes: true })) {
      if (!entry.isDirectory() || entry.name.startsWith('.') || entry.name === 'node_modules') continue;
      if (entry.name === 'codex') continue;
      if (!fs.existsSync(path.join(ROOT, entry.name, 'SKILL.md.tmpl'))) continue;
      const factoryName = entry.name.startsWith('gstack-') ? entry.name : `gstack-${entry.name}`;
      skills.push({ dir: entry.name, factoryName });
    }
    return skills;
  })();

  test('--host factory generates correct output paths', () => {
    for (const skill of FACTORY_SKILLS) {
      const skillMd = path.join(FACTORY_DIR, skill.factoryName, 'SKILL.md');
      expect(fs.existsSync(skillMd)).toBe(true);
    }
  });

  test('Factory frontmatter has name + description + user-invocable', () => {
    for (const skill of FACTORY_SKILLS) {
      const content = fs.readFileSync(path.join(FACTORY_DIR, skill.factoryName, 'SKILL.md'), 'utf-8');
      const fmEnd = content.indexOf('\n---', 4);
      const frontmatter = content.slice(4, fmEnd);
      expect(frontmatter).toContain('name:');
      expect(frontmatter).toContain('description:');
      expect(frontmatter).toContain('user-invocable: true');
      expect(frontmatter).not.toContain('allowed-tools:');
      expect(frontmatter).not.toContain('preamble-tier:');
      expect(frontmatter).not.toContain('sensitive:');
    }
  });

  test('sensitive skills have disable-model-invocation', () => {
    const SENSITIVE = ['gstack-ship', 'gstack-land-and-deploy', 'gstack-guard', 'gstack-careful', 'gstack-freeze', 'gstack-unfreeze'];
    for (const name of SENSITIVE) {
      const content = fs.readFileSync(path.join(FACTORY_DIR, name, 'SKILL.md'), 'utf-8');
      const fmEnd = content.indexOf('\n---', 4);
      const frontmatter = content.slice(4, fmEnd);
      expect(frontmatter).toContain('disable-model-invocation: true');
    }
  });

  test('non-sensitive skills lack disable-model-invocation', () => {
    const NON_SENSITIVE = ['gstack-qa', 'gstack-review', 'gstack-investigate', 'gstack-browse'];
    for (const name of NON_SENSITIVE) {
      const content = fs.readFileSync(path.join(FACTORY_DIR, name, 'SKILL.md'), 'utf-8');
      const fmEnd = content.indexOf('\n---', 4);
      const frontmatter = content.slice(4, fmEnd);
      expect(frontmatter).not.toContain('disable-model-invocation');
    }
  });

  test('no .claude/skills/ in Factory output', () => {
    for (const skill of FACTORY_SKILLS) {
      const content = fs.readFileSync(path.join(FACTORY_DIR, skill.factoryName, 'SKILL.md'), 'utf-8');
      expect(content).not.toContain('.claude/skills');
    }
  });

  test('no ~/.claude/skills/ paths in Factory output', () => {
    for (const skill of FACTORY_SKILLS) {
      const content = fs.readFileSync(path.join(FACTORY_DIR, skill.factoryName, 'SKILL.md'), 'utf-8');
      // ~/.claude/skills should be rewritten, but ~/.claude/plans is legitimate
      // (plan directory lookup) and ~/.claude/ in codex prompts is intentional
      expect(content).not.toContain('~/.claude/skills');
    }
  });

  test('/codex skill excluded from Factory output', () => {
    expect(fs.existsSync(path.join(FACTORY_DIR, 'gstack-codex', 'SKILL.md'))).toBe(false);
    expect(fs.existsSync(path.join(FACTORY_DIR, 'gstack-codex'))).toBe(false);
  });

  test('Factory keeps Codex integration blocks', () => {
    // Factory users CAN use Codex second opinions (codex exec is a standalone binary)
    const shipContent = fs.readFileSync(path.join(FACTORY_DIR, 'gstack-ship', 'SKILL.md'), 'utf-8');
    expect(shipContent).toContain('codex');
  });

  test('no agents/openai.yaml in Factory output', () => {
    for (const skill of FACTORY_SKILLS) {
      const yamlPath = path.join(FACTORY_DIR, skill.factoryName, 'agents', 'openai.yaml');
      expect(fs.existsSync(yamlPath)).toBe(false);
    }
  });

  test('--host droid alias works', () => {
    const factoryResult = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'factory', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT, stdout: 'pipe', stderr: 'pipe', timeout: 120_000,
    });
    const droidResult = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'droid', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT, stdout: 'pipe', stderr: 'pipe', timeout: 120_000,
    });
    expect(factoryResult.exitCode).toBe(0);
    expect(droidResult.exitCode).toBe(0);
    expect(factoryResult.stdout.toString()).toBe(droidResult.stdout.toString());
  });

  test('--host factory --dry-run freshness', () => {
    const result = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'factory', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT, stdout: 'pipe', stderr: 'pipe', timeout: 120_000,
    });
    expect(result.exitCode).toBe(0);
    const output = result.stdout.toString();
    for (const skill of FACTORY_SKILLS) {
      expect(output).toContain(`FRESH: .factory/skills/${skill.factoryName}/SKILL.md`);
    }
    expect(output).not.toContain('STALE');
  });

  test('Factory preamble uses .factory paths', () => {
    const content = fs.readFileSync(path.join(FACTORY_DIR, 'gstack-review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('GSTACK_ROOT');
    expect(content).toContain('$_ROOT/.factory/skills/gstack');
    expect(content).toContain('$GSTACK_BIN/gstack-config');
  });
});

// ─── Parameterized host smoke tests (config-driven) ─────────

import { ALL_HOST_CONFIGS, getExternalHosts } from '../hosts/index';
import { sliceBetween } from './helpers/skill-fixture';

describe('Parameterized host smoke tests', () => {
  // Every external host was rendered up front by the module-level
  // `--host all --out-dir EXTERNAL_OUT` render, so the per-host `--dry-run`
  // freshness checks are deterministic: they compare a regeneration against
  // that render — an idempotency/determinism check that catches
  // non-deterministic gen without ever writing (or depending on) the live
  // gitignored host dirs. The tracked-claude freshness test
  // (`generated files are fresh`) runs earlier and is unaffected.
  for (const hostConfig of getExternalHosts()) {
    describe(`${hostConfig.displayName} (--host ${hostConfig.name})`, () => {
      const hostDir = path.join(EXTERNAL_OUT, hostConfig.hostSubdir, 'skills');

      test('generates output that exists on disk', () => {
        // The module-level --host all render must have produced this host's tree.
        expect(fs.existsSync(hostDir)).toBe(true);
        const skills = fs.readdirSync(hostDir).filter(d =>
          fs.existsSync(path.join(hostDir, d, 'SKILL.md'))
        );
        expect(skills.length).toBeGreaterThan(0);
      });

      test('no .claude/skills path leakage outside repo-root sidecar symlinks', () => {
        if (!fs.existsSync(hostDir)) return; // skip if not generated
        const skills = fs.readdirSync(hostDir);
        for (const skill of skills) {
          // Dev installs may mount the repo root at host/skills/gstack as a runtime
          // sidecar. The generator skips that symlink loop, so leakage checks should too.
          if (isRepoRootSymlink(path.join(hostDir, skill))) continue;
          const skillMd = path.join(hostDir, skill, 'SKILL.md');
          if (!fs.existsSync(skillMd)) continue;
          const content = fs.readFileSync(skillMd, 'utf-8');
          // Strip bash blocks (which have legitimate fallback paths)
          const noBash = content.replace(/```bash\n[\s\S]*?```/g, '');
          const leaks = noBash.split('\n').filter(l => l.includes('.claude/skills'));
          if (leaks.length > 0) {
            throw new Error(`${skill}: .claude/skills leakage:\n${leaks.slice(0, 3).join('\n')}`);
          }
        }
      });

      test('frontmatter has name and description', () => {
        if (!fs.existsSync(hostDir)) return;
        const skills = fs.readdirSync(hostDir);
        for (const skill of skills) {
          const skillMd = path.join(hostDir, skill, 'SKILL.md');
          if (!fs.existsSync(skillMd)) continue;
          const content = fs.readFileSync(skillMd, 'utf-8');
          expect(content).toMatch(/^---\n/);
          expect(content).toMatch(/^name:\s/m);
          expect(content).toMatch(/^description:\s/m);
        }
      });

      test('--dry-run freshness check passes', () => {
        const result = Bun.spawnSync(
          ['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', hostConfig.name, '--dry-run', '--out-dir', EXTERNAL_OUT],
          { cwd: ROOT, stdout: 'pipe', stderr: 'pipe', timeout: 120_000 }
        );
        expect(result.exitCode).toBe(0);
        const output = result.stdout.toString();
        expect(output).not.toContain('STALE');
      });

      if (hostConfig.generation.skipSkills?.includes('codex')) {
        test('/codex skill excluded', () => {
          expect(fs.existsSync(path.join(hostDir, 'gstack-codex', 'SKILL.md'))).toBe(false);
        });
      }
    });
  }
});

// ─── --host all tests ────────────────────────────────────────

describe('--host all', () => {
  // Same determinism guard as the parameterized block: the module-level
  // `--host all --out-dir EXTERNAL_OUT` render is the comparison baseline, so
  // this dry-run reports FRESH regardless of live-tree state — and proves the
  // claude host plus every external host regenerate deterministically.
  test('--host all generates for all registered hosts', () => {
    const result = Bun.spawnSync(['bun', 'run', 'scripts/gen-skill-docs.ts', '--host', 'all', '--dry-run', '--out-dir', EXTERNAL_OUT], {
      cwd: ROOT, stdout: 'pipe', stderr: 'pipe', timeout: 120_000,
    });
    expect(result.exitCode).toBe(0);
    const output = result.stdout.toString();
    // All hosts should appear in output
    expect(output).toContain('FRESH: SKILL.md');           // claude
    for (const hostConfig of getExternalHosts()) {
      expect(output).toContain(`FRESH: ${hostConfig.hostSubdir}/skills/`);
    }
  });
});

// ─── Setup script validation ─────────────────────────────────
// These tests verify the setup script's install layout matches
// what the generator produces — catching the bug where setup
// installed Claude-format source dirs for Codex users.

describe('setup script validation', () => {
  const setupContent = fs.readFileSync(path.join(ROOT, 'setup'), 'utf-8');

  test('setup has separate link functions for Claude and Codex', () => {
    expect(setupContent).toContain('link_claude_skill_dirs');
    expect(setupContent).toContain('link_codex_skill_dirs');
    // Old unified function must not exist
    expect(setupContent).not.toMatch(/^link_skill_dirs\(\)/m);
  });

  test('Claude install uses link_claude_skill_dirs', () => {
    // The Claude install section (section 4) should use the Claude function
    const claudeSection = setupContent.slice(
      setupContent.indexOf('# 4. Install for Claude'),
      setupContent.indexOf('# 5. Install for Codex')
    );
    expect(claudeSection).toContain('link_claude_skill_dirs');
    expect(claudeSection).not.toContain('link_codex_skill_dirs');
  });

  test('Codex install uses link_codex_skill_dirs', () => {
    // The Codex install section (section 5) should use the Codex function
    // End marker: the next numbered section header (a marker that doesn't
    // exist slices to EOF and the assertion reads unrelated sections).
    const codexSection = setupContent.slice(
      setupContent.indexOf('# 5. Install for Codex'),
      setupContent.indexOf('# 6. Install for Kiro')
    );
    expect(setupContent.indexOf('# 6. Install for Kiro')).toBeGreaterThan(-1);
    expect(codexSection).toContain('create_codex_runtime_root');
    expect(codexSection).toContain('link_codex_skill_dirs');
    expect(codexSection).not.toContain('link_claude_skill_dirs');
    expect(codexSection).not.toContain('_link_or_copy "$GSTACK_DIR" "$CODEX_GSTACK"');
  });

  test('Codex install prefers repo-local .agents/skills when setup runs from there', () => {
    expect(setupContent).toContain('SKILLS_PARENT_BASENAME');
    expect(setupContent).toContain('CODEX_REPO_LOCAL=0');
    expect(setupContent).toContain('[ "$SKILLS_PARENT_BASENAME" = ".agents" ]');
    expect(setupContent).toContain('CODEX_REPO_LOCAL=1');
    expect(setupContent).toContain('CODEX_SKILLS="$INSTALL_SKILLS_DIR"');
  });

  test('setup separates install path from source path for symlinked repo-local installs', () => {
    expect(setupContent).toContain('INSTALL_GSTACK_DIR=');
    expect(setupContent).toContain('SOURCE_GSTACK_DIR=');
    expect(setupContent).toContain('INSTALL_SKILLS_DIR=');
    expect(setupContent).toContain('CODEX_GSTACK="$INSTALL_GSTACK_DIR"');
    expect(setupContent).toContain('link_codex_skill_dirs "$SOURCE_GSTACK_DIR" "$CODEX_SKILLS"');
  });

  test('Codex installs always create sidecar runtime assets for the real skill target', () => {
    expect(setupContent).toContain('if [ "$INSTALL_CODEX" -eq 1 ]; then');
    expect(setupContent).toContain('create_agents_sidecar "$SOURCE_GSTACK_DIR"');
  });

  test('link_codex_skill_dirs reads from .agents/skills/', () => {
    // The Codex link function must reference .agents/skills for generated Codex skills
    const fnStart = setupContent.indexOf('link_codex_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('.agents/skills');
    expect(fnBody).toContain('gstack*');
  });

  test('link_claude_skill_dirs creates real directories with absolute SKILL.md symlinks', () => {
    // Claude links should be real directories with absolute SKILL.md symlinks
    // to ensure Claude Code discovers them as top-level skills (not nested under gstack/)
    const fnStart = setupContent.indexOf('link_claude_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('mkdir -p "$target"');
    // v1.36.0.0: routes through _link_or_copy helper for Windows fallback (cp on MSYS2/Git Bash).
    // v1.67 (#2569): the source is render-aware — canonical SKILL.md, or the
    // rendered :user variant from ${GSTACK_HOME}/render/claude when present.
    expect(fnBody).toContain('_skill_md_src="$gstack_dir/$dir_name/SKILL.md"');
    expect(fnBody).toContain('_link_or_copy "$_skill_md_src" "$target/SKILL.md"');
  });

  // REGRESSION: cleanup functions must handle both old symlinks AND new real-directory pattern
  test('cleanup functions handle real directories with symlinked SKILL.md', () => {
    // cleanup_old_claude_symlinks must detect and remove real dirs with SKILL.md symlinks
    const cleanupOldStart = setupContent.indexOf('cleanup_old_claude_symlinks()');
    const cleanupOldEnd = setupContent.indexOf('}', setupContent.indexOf('cleaned up old', cleanupOldStart));
    const cleanupOldBody = setupContent.slice(cleanupOldStart, cleanupOldEnd);
    expect(cleanupOldBody).toContain('-d "$old_target"');
    expect(cleanupOldBody).toContain('-L "$old_target/SKILL.md"');
    expect(cleanupOldBody).toContain('rm -rf "$old_target"');

    // cleanup_prefixed_claude_symlinks must also handle the new pattern
    const cleanupPrefixedStart = setupContent.indexOf('cleanup_prefixed_claude_symlinks()');
    const cleanupPrefixedEnd = setupContent.indexOf('}', setupContent.indexOf('cleaned up prefixed', cleanupPrefixedStart));
    const cleanupPrefixedBody = setupContent.slice(cleanupPrefixedStart, cleanupPrefixedEnd);
    expect(cleanupPrefixedBody).toContain('-d "$prefixed_target"');
    expect(cleanupPrefixedBody).toContain('-L "$prefixed_target/SKILL.md"');
    expect(cleanupPrefixedBody).toContain('rm -rf "$prefixed_target"');
  });

  // REGRESSION: link function must upgrade old directory symlinks
  test('link_claude_skill_dirs removes old directory symlinks before creating real dirs', () => {
    const fnStart = setupContent.indexOf('link_claude_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    // Must check for and remove old symlinks before mkdir
    expect(fnBody).toContain('if [ -L "$target" ]');
    expect(fnBody).toContain('rm -f "$target"');
  });

  test('setup links root gstack skill through a thin Claude wrapper alias', () => {
    const fnStart = setupContent.indexOf('link_claude_root_skill_alias()');
    const fnEnd = setupContent.indexOf('# ─── Helper: remove old unprefixed Claude skill entries', fnStart);
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('_gstack-command');
    // #2511: the alias must be a rewritten COPY (unique frontmatter name),
    // never a verbatim symlink of the canonical SKILL.md.
    expect(fnBody).toContain('_install_alias_skill_md "$gstack_dir/SKILL.md" "$target" "_gstack-command"');
    expect(fnBody).not.toContain('_link_or_copy "$gstack_dir/SKILL.md"');

    const claudeSection = setupContent.slice(
      setupContent.indexOf('# 4. Install for Claude'),
      setupContent.indexOf('# 5. Install for Codex')
    );
    expect(claudeSection).toContain('link_claude_root_skill_alias "$SOURCE_GSTACK_DIR" "$INSTALL_SKILLS_DIR"');
  });

  test('setup supports --host auto|claude|codex|kiro|opencode|cursor; slate is informational', () => {
    expect(setupContent).toContain('--host');
    // #2361: slate moved OUT of the install accept-list (it was accepted but
    // never dispatched — a silent exit-0 no-op) into an informational arm.
    expect(setupContent).toContain('claude|codex|kiro|factory|opencode|cursor|auto');
    expect(setupContent).toMatch(/^ {2}slate\)/m);
  });

  test('auto mode detects claude, codex, kiro, and opencode binaries', () => {
    expect(setupContent).toContain('command -v claude');
    expect(setupContent).toContain('command -v codex');
    expect(setupContent).toContain('command -v kiro-cli');
    expect(setupContent).toContain('command -v opencode');
  });

  // T1: Sidecar skip guard — prevents .agents/skills/gstack from being linked as a skill
  test('link_codex_skill_dirs skips the gstack sidecar directory', () => {
    const fnStart = setupContent.indexOf('link_codex_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('done', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('[ "$skill_name" = "gstack" ] && continue');
  });

  // T2: Dynamic $GSTACK_ROOT paths in generated Codex preambles
  test('generated Codex preambles use dynamic GSTACK_ROOT paths', () => {
    // Read the module-level out-dir render (always present).
    const codexSkillDir = path.join(EXTERNAL_OUT, '.agents', 'skills', 'gstack-ship');
    const content = fs.readFileSync(path.join(codexSkillDir, 'SKILL.md'), 'utf-8');
    expect(content).toContain('GSTACK_ROOT=');
    expect(content).toContain('$GSTACK_BIN/');
  });

  test('setup supports --host kiro with install section and sed rewrites', () => {
    expect(setupContent).toContain('INSTALL_KIRO=');
    expect(setupContent).toContain('kiro-cli');
    expect(setupContent).toContain('KIRO_SKILLS=');
    expect(setupContent).toContain('~/.kiro/skills/gstack');
    expect(setupContent).toContain('$KIRO_GSTACK/lib');
  });

  test('setup supports --host opencode with install section and OpenCode skill path vars', () => {
    expect(setupContent).toContain('INSTALL_OPENCODE=');
    expect(setupContent).toContain('OPENCODE_SKILLS="$HOME/.config/opencode/skills"');
    expect(setupContent).toContain('OPENCODE_GSTACK="$OPENCODE_SKILLS/gstack"');
  });

  // --host cursor full install slice (#1358, PR #2547 by @szsunyuan re-derived)
  test('auto mode detects Cursor via binary or ~/.cursor directory', () => {
    expect(setupContent).toContain('command -v cursor');
    expect(setupContent).toContain('[ -d "$HOME/.cursor" ] && INSTALL_CURSOR=1');
  });

  test('setup supports --host cursor with install section and Cursor skill path vars', () => {
    expect(setupContent).toContain('INSTALL_CURSOR=');
    expect(setupContent).toContain('CURSOR_SKILLS="$HOME/.cursor/skills"');
    expect(setupContent).toContain('CURSOR_GSTACK="$CURSOR_SKILLS/gstack"');
    expect(setupContent).toContain('create_cursor_runtime_root');
    expect(setupContent).toContain('create_cursor_sidecar');
    expect(setupContent).toContain('link_cursor_skill_dirs');
    expect(setupContent).toContain('gstack ready (cursor).');
  });

  test('create_cursor_runtime_root exposes only Cursor runtime assets', () => {
    const fnStart = setupContent.indexOf('create_cursor_runtime_root()');
    const fnEnd = setupContent.indexOf('create_cursor_sidecar()', fnStart);
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('gstack/SKILL.md');
    expect(fnBody).toContain('browse/dist');
    expect(fnBody).toContain('browse/bin');
    expect(fnBody).toContain('gstack-upgrade/SKILL.md');
    expect(fnBody).toContain('checklist.md');
    expect(fnBody).toContain('TODOS-format.md');
    // bin scripts import ../lib — the two must travel together.
    expect(fnBody).toContain('$cursor_gstack/lib');
    expect(fnBody).not.toContain('design-checklist.md');
    expect(fnBody).not.toContain('greptile-triage.md');
    expect(fnBody).not.toContain('review/specialists');
    expect(fnBody).not.toContain('qa/templates');
    expect(fnBody).not.toContain('_link_or_copy "$gstack_dir" "$cursor_gstack"');
  });

  test('create_cursor_sidecar plants runtime assets without wiping generated SKILL.md', () => {
    const fnStart = setupContent.indexOf('create_cursor_sidecar()');
    const fnEnd = setupContent.indexOf('link_cursor_skill_dirs()', fnStart);
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('.cursor/skills/gstack');
    expect(fnBody).toContain('bin');
    expect(fnBody).toContain('browse/dist');
    expect(fnBody).toContain('browse/bin');
    expect(fnBody).toContain('ETHOS.md');
    expect(fnBody).not.toContain('rm -rf');
  });

  test('link_cursor_skill_dirs skips the gstack runtime root directory', () => {
    const fnStart = setupContent.indexOf('link_cursor_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('[ "$skill_name" = "gstack" ] && continue');
    // #2444-aware guard: Windows bypass, else only replace symlink-or-missing.
    expect(fnBody).toContain('[ "$IS_WINDOWS" -eq 1 ] || [ -L "$target" ] || [ ! -e "$target" ]');
  });

  // #2142 deleted existing ~/.cursor/skills/<name> dirs with `rm -rf "$target"`
  // before relinking. That can wipe unowned Cursor skills. Only replace a
  // symlink or a missing path; never the whole skills directory.
  test('link_cursor_skill_dirs does not delete unowned Cursor skill directories', () => {
    const fnStart = setupContent.indexOf('link_cursor_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).not.toContain('rm -rf "$target"');
    expect(fnBody).not.toContain('rm -rf "$skills_dir"');
    expect(setupContent).not.toContain('rm -rf "$CURSOR_SKILLS"');
  });

  test('Cursor install links generated skills before planting the sidecar', () => {
    const cursorInstall = setupContent.slice(
      setupContent.indexOf('# 6d. Install for Cursor'),
      setupContent.indexOf('# 7. Create .agents/ sidecar'),
    );
    const linkCall = cursorInstall.indexOf('link_cursor_skill_dirs "$SOURCE_GSTACK_DIR"');
    const sidecarCall = cursorInstall.indexOf('create_cursor_sidecar "$SOURCE_GSTACK_DIR"');
    expect(linkCall).toBeGreaterThan(-1);
    expect(sidecarCall).toBeGreaterThan(-1);
    expect(linkCall).toBeLessThan(sidecarCall);
  });

  test('setup installs OpenCode skills into a nested gstack runtime root', () => {
    expect(setupContent).toContain('create_opencode_runtime_root');
    expect(setupContent).toContain('.opencode/skills');
    expect(setupContent).toContain('review/specialists');
    expect(setupContent).toContain('qa/templates');
    expect(setupContent).toContain('qa/references');
    expect(setupContent).toContain('dx-hall-of-fame.md');
    expect(setupContent).toContain('$opencode_gstack/lib');
  });

  test('create_agents_sidecar links runtime assets', () => {
    // Sidecar must link bin with its shared lib modules, plus browse, review, qa
    const fnStart = setupContent.indexOf('create_agents_sidecar()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('done', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('bin');
    expect(fnBody).toContain('lib');
    expect(fnBody).toContain('browse');
    expect(fnBody).toContain('review');
    expect(fnBody).toContain('qa');
  });

  test('create_codex_runtime_root exposes only runtime assets', () => {
    const fnStart = setupContent.indexOf('create_codex_runtime_root()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('done', setupContent.indexOf('review/', fnStart)));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('gstack/SKILL.md');
    expect(fnBody).toContain('$codex_gstack/lib');
    expect(fnBody).toContain('browse/dist');
    expect(fnBody).toContain('browse/bin');
    expect(fnBody).toContain('gstack-upgrade/SKILL.md');
    // Review runtime assets (individual files, not the whole dir)
    expect(fnBody).toContain('checklist.md');
    expect(fnBody).toContain('design-checklist.md');
    expect(fnBody).toContain('greptile-triage.md');
    expect(fnBody).toContain('TODOS-format.md');
    expect(fnBody).not.toContain('_link_or_copy "$gstack_dir" "$codex_gstack"');
  });

  test('create_factory_runtime_root links shared lib modules beside bin', () => {
    const fnStart = setupContent.indexOf('create_factory_runtime_root()');
    const fnEnd = setupContent.indexOf('create_opencode_runtime_root()', fnStart);
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('$factory_gstack/bin');
    expect(fnBody).toContain('$factory_gstack/lib');
  });

  test('direct Codex installs are migrated out of ~/.codex/skills/gstack', () => {
    expect(setupContent).toContain('migrate_direct_codex_install');
    expect(setupContent).toContain('$HOME/.gstack/repos/gstack');
    expect(setupContent).toContain('avoid duplicate skill discovery');
  });

  // --- Symlink prefix tests (PR #503) ---

  test('link_claude_skill_dirs applies gstack- prefix by default', () => {
    const fnStart = setupContent.indexOf('link_claude_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('SKILL_PREFIX');
    expect(fnBody).toContain('link_name="gstack-$skill_name"');
  });

  test('link_claude_skill_dirs preserves already-prefixed dirs', () => {
    const fnStart = setupContent.indexOf('link_claude_skill_dirs()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('linked[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    // gstack-* dirs should keep their name (e.g., gstack-upgrade stays gstack-upgrade)
    expect(fnBody).toContain('gstack-*) link_name="$skill_name"');
  });

  test('setup supports --no-prefix flag', () => {
    expect(setupContent).toContain('--no-prefix');
    expect(setupContent).toContain('SKILL_PREFIX=0');
  });

  test('cleanup_old_claude_symlinks removes only gstack-pointing symlinks', () => {
    expect(setupContent).toContain('cleanup_old_claude_symlinks');
    const fnStart = setupContent.indexOf('cleanup_old_claude_symlinks()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('removed[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    // Should check readlink before removing
    expect(fnBody).toContain('readlink');
    expect(fnBody).toContain('gstack/*');
    // Should skip already-prefixed dirs
    expect(fnBody).toContain('gstack-*) continue');
  });

  test('cleanup runs before link when prefix is enabled', () => {
    // In the Claude install section, cleanup should happen before linking
    const claudeInstallSection = setupContent.slice(
      setupContent.indexOf('INSTALL_CLAUDE'),
      setupContent.lastIndexOf('link_claude_skill_dirs')
    );
    expect(claudeInstallSection).toContain('cleanup_old_claude_symlinks');
  });

  // --- Persistent config + interactive prompt tests ---

  test('setup reads skill_prefix from config', () => {
    expect(setupContent).toContain('get skill_prefix');
    expect(setupContent).toContain('GSTACK_CONFIG');
  });

  test('setup supports --prefix flag', () => {
    expect(setupContent).toContain('--prefix)');
    expect(setupContent).toContain('SKILL_PREFIX=1; SKILL_PREFIX_FLAG=1');
  });

  test('--prefix and --no-prefix persist to config', () => {
    expect(setupContent).toContain('set skill_prefix');
  });

  test('interactive prompt shows when no config', () => {
    expect(setupContent).toContain('Short names');
    expect(setupContent).toContain('Namespaced');
    expect(setupContent).toContain('Choice [1/2]');
  });

  test('non-TTY defaults to flat names', () => {
    // Should check if stdin is a TTY before prompting
    expect(setupContent).toContain('-t 0');
  });

  test('cleanup_prefixed_claude_symlinks exists and uses readlink', () => {
    expect(setupContent).toContain('cleanup_prefixed_claude_symlinks');
    const fnStart = setupContent.indexOf('cleanup_prefixed_claude_symlinks()');
    const fnEnd = setupContent.indexOf('}', setupContent.indexOf('removed[@]}', fnStart));
    const fnBody = setupContent.slice(fnStart, fnEnd);
    expect(fnBody).toContain('readlink');
    expect(fnBody).toContain('gstack-$skill_name');
  });

  test('reverse cleanup runs before link when prefix is disabled', () => {
    const claudeInstallSection = setupContent.slice(
      setupContent.indexOf('INSTALL_CLAUDE'),
      setupContent.lastIndexOf('link_claude_skill_dirs')
    );
    expect(claudeInstallSection).toContain('cleanup_prefixed_claude_symlinks');
  });

  test('welcome message references SKILL_PREFIX', () => {
    // gstack-upgrade is always called gstack-upgrade (it's the actual dir name)
    // but the welcome section should exist near the prefix logic
    expect(setupContent).toContain('Run /gstack-upgrade anytime');
  });
});

describe('discover-skills hidden directory filtering', () => {
  test('discoverTemplates skips dot-prefixed directories', () => {
    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-discover-'));
    try {
      // Create a hidden dir with a template (should be excluded)
      fs.mkdirSync(path.join(tmpDir, '.hidden'), { recursive: true });
      fs.writeFileSync(path.join(tmpDir, '.hidden', 'SKILL.md.tmpl'), '---\nname: evil\n---\ntest');
      // Create a visible dir with a template (should be included)
      fs.mkdirSync(path.join(tmpDir, 'visible'), { recursive: true });
      fs.writeFileSync(path.join(tmpDir, 'visible', 'SKILL.md.tmpl'), '---\nname: good\n---\ntest');

      const { discoverTemplates } = require('../scripts/discover-skills');
      const results = discoverTemplates(tmpDir);
      const dirs = results.map((r: { tmpl: string }) => r.tmpl);

      expect(dirs).toContain('visible/SKILL.md.tmpl');
      expect(dirs).not.toContain('.hidden/SKILL.md.tmpl');
    } finally {
      fs.rmSync(tmpDir, { recursive: true, force: true });
    }
  });
});

describe('telemetry', () => {
  test('telemetry start block lives in gstack-skill-start; render notes the handoff keys', () => {
    // The start-block bash moved into the script (Phase 1): it reads the
    // config, mints the session identity, and echoes the STATUS keys.
    expect(SKILL_START_SCRIPT).toContain('_TEL_START=$(date +%s)');
    expect(SKILL_START_SCRIPT).toContain('_SESSION_ID=');
    expect(SKILL_START_SCRIPT).toContain('echo "TELEMETRY:');
    expect(SKILL_START_SCRIPT).toContain('echo "TEL_PROMPTED:');
    expect(SKILL_START_SCRIPT).toMatch(/gstack-config" get telemetry/);
    // The render must tell the model to carry SESSION_ID/TEL_START to skill end.
    const content = fs.readFileSync(path.join(ROOT, 'SKILL.md'), 'utf-8');
    expect(content).toContain('SESSION_ID');
    expect(content).toContain('TEL_START');
  });

  test('telemetry opt-in prompt lives in gstack-skill-start (marker-gated emit)', () => {
    // Token-reduction Phase 2: the one-time consent prompt left the renders
    // (absence pinned by test/onboarding-moved-literals.test.ts); the script
    // gates it on the marker files and emits it as a GSTACK_INSTRUCTION block
    // with all three config-set outcomes and the ack INSIDE the block.
    expect(SKILL_START_SCRIPT).toContain(
      'if [ "$_TEL_PROMPTED" = "no" ] && [ "$_LAKE_SEEN" = "yes" ]; then',
    );
    expect(SKILL_START_SCRIPT).toContain('_emit_block telemetry-prompt');
    expect(SKILL_START_SCRIPT).toContain('gstack-config set telemetry community');
    expect(SKILL_START_SCRIPT).toContain('gstack-config set telemetry anonymous');
    expect(SKILL_START_SCRIPT).toContain('gstack-config set telemetry off');
    expect(SKILL_START_SCRIPT).toContain('touch "$_GH/.telemetry-prompted"');
  });

  test('generated SKILL.md contains telemetry epilogue (one gstack-skill-end call)', () => {
    const content = fs.readFileSync(path.join(ROOT, 'SKILL.md'), 'utf-8');
    expect(content).toContain('Telemetry (run last)');
    expect(content).toContain('gstack-skill-end --skill "gstack" --outcome OUTCOME');
    expect(content).toContain('--tel-start "TEL_START"');
    expect(content).toContain('PLAN MODE EXCEPTION');
    // The duration math + remote-log dispatch moved into gstack-skill-end.
    expect(SKILL_END_SCRIPT).toContain('_TEL_END');
    expect(SKILL_END_SCRIPT).toContain('_TEL_DUR');
    expect(SKILL_END_SCRIPT).toContain('SKILL_NAME');
    expect(SKILL_END_SCRIPT).toContain('OUTCOME');
    expect(SKILL_END_SCRIPT).toContain('gstack-telemetry-log');
  });

  test('pending marker handling lives in the scripts', () => {
    // gstack-skill-start finalizes stale markers; gstack-skill-end clears the
    // session's own marker.
    expect(SKILL_START_SCRIPT).toContain("-name '.pending-*'");
    expect(SKILL_START_SCRIPT).toContain('_pending_finalize');
    expect(SKILL_END_SCRIPT).toContain('.pending-$SESSION_ID');
  });

  test('telemetry blocks appear in all skill files that use PREAMBLE', () => {
    const skills = ['qa', 'ship', 'review', 'plan-ceo-review', 'plan-eng-review', 'retro'];
    for (const skill of skills) {
      const skillPath = path.join(ROOT, skill, 'SKILL.md');
      if (fs.existsSync(skillPath)) {
        const content = fs.readFileSync(skillPath, 'utf-8');
        expect(content).toContain('Telemetry (run last)');
        expect(content).toContain(`gstack-skill-end --skill "${skill}"`);
        expect(content).toContain('--tel-start "TEL_START"');
      }
    }
  });
});

describe('community fixes wave', () => {
  // Helper to get all generated SKILL.md files
  function getAllSkillMds(): Array<{ name: string; content: string }> {
    const results: Array<{ name: string; content: string }> = [];
    const rootPath = path.join(ROOT, 'SKILL.md');
    if (fs.existsSync(rootPath)) {
      results.push({ name: 'root', content: fs.readFileSync(rootPath, 'utf-8') });
    }
    for (const entry of fs.readdirSync(ROOT, { withFileTypes: true })) {
      if (!entry.isDirectory() || entry.name.startsWith('.') || entry.name === 'node_modules') continue;
      const skillPath = path.join(ROOT, entry.name, 'SKILL.md');
      if (fs.existsSync(skillPath)) {
        results.push({ name: entry.name, content: fs.readFileSync(skillPath, 'utf-8') });
      }
    }
    return results;
  }

  // #594 — Discoverability: every SKILL.md.tmpl description contains "gstack"
  test('every SKILL.md.tmpl description contains "gstack"', () => {
    for (const skill of ALL_SKILLS) {
      const tmplPath = skill.dir === '.' ? path.join(ROOT, 'SKILL.md.tmpl') : path.join(ROOT, skill.dir, 'SKILL.md.tmpl');
      const content = fs.readFileSync(tmplPath, 'utf-8');
      const desc = extractDescription(content);
      expect(desc.toLowerCase()).toContain('gstack');
    }
  });

  // #594 — Discoverability: first line of each description is under 120 chars
  test('every SKILL.md.tmpl description first line is under 120 chars', () => {
    for (const skill of ALL_SKILLS) {
      const tmplPath = skill.dir === '.' ? path.join(ROOT, 'SKILL.md.tmpl') : path.join(ROOT, skill.dir, 'SKILL.md.tmpl');
      const content = fs.readFileSync(tmplPath, 'utf-8');
      const desc = extractDescription(content);
      const firstLine = desc.split('\n')[0];
      expect(firstLine.length).toBeLessThanOrEqual(120);
    }
  });

  // #573 — Feature signals: ship/SKILL.md contains feature signal detection
  test('ship/SKILL.md contains feature signal detection in Step 4', () => {
    const content = readShipUnion();
    expect(content.toLowerCase()).toContain('feature signal');
  });

  // #510 — Context warnings: no SKILL.md contains "running low on context"
  test('no generated SKILL.md contains "running low on context"', () => {
    const skills = getAllSkillMds();
    for (const { name, content } of skills) {
      expect(content).not.toContain('running low on context');
    }
  });

  // #510 — Context warnings: plan-eng-review has explicit anti-warning
  test('plan-eng-review/SKILL.md contains "Do not preemptively warn"', () => {
    const content = readSkillUnion('plan-eng-review'); // carved: review body moved to section
    expect(content).toContain('Do not preemptively warn');
  });

  // #474 — Safety Net: no SKILL.md uses find with -delete
  test('no generated SKILL.md contains find with -delete flag', () => {
    const skills = getAllSkillMds();
    for (const { name, content } of skills) {
      // Match find commands that use -delete (but not prose mentioning the word "delete")
      const lines = content.split('\n');
      for (const line of lines) {
        if (line.includes('find ') && line.includes('-delete')) {
          throw new Error(`${name}/SKILL.md contains find with -delete: ${line.trim()}`);
        }
      }
    }
  });

  // #467 — Telemetry: preamble JSONL writes are gated by telemetry setting
  test('preamble JSONL writes are inside telemetry conditional', () => {
    const preamble = fs.readFileSync(path.join(ROOT, 'scripts/resolvers/preamble.ts'), 'utf-8');
    // Find all skill-usage.jsonl write lines
    const lines = preamble.split('\n');
    for (let i = 0; i < lines.length; i++) {
      if (lines[i].includes('skill-usage.jsonl') && lines[i].includes('>>')) {
        // Look backwards for a telemetry conditional within 5 lines
        let foundConditional = false;
        for (let j = i - 1; j >= Math.max(0, i - 5); j--) {
          if (lines[j].includes('_TEL') && lines[j].includes('off')) {
            foundConditional = true;
            break;
          }
        }
        expect(foundConditional).toBe(true);
      }
    }
  });
});

describe('codex commands must not use inline $(git rev-parse --show-toplevel) for cwd', () => {
  // Regression test: inline $(git rev-parse --show-toplevel) in codex exec -C
  // or codex review without cd evaluates in whatever cwd the background shell
  // inherits, which may be a different project in Conductor workspaces.
  // The fix is to resolve _REPO_ROOT eagerly at the top of each bash block.

  // Scan all source files that could contain codex commands
  // Use Bun.Glob to avoid ELOOP from .claude/skills/gstack symlink back to ROOT
  const tmplGlob = new Bun.Glob('**/*.tmpl');
  const sourceFiles = [
    ...Array.from(tmplGlob.scanSync({ cwd: ROOT, followSymlinks: false })),
    ...fs.readdirSync(path.join(ROOT, 'scripts/resolvers'))
      .filter(f => f.endsWith('.ts'))
      .map(f => `scripts/resolvers/${f}`),
    'scripts/gen-skill-docs.ts',
  ];

  test('no codex exec command uses inline $(git rev-parse --show-toplevel) in -C flag', () => {
    const violations: string[] = [];
    for (const rel of sourceFiles) {
      const abs = path.join(ROOT, rel);
      if (!fs.existsSync(abs)) continue;
      const content = fs.readFileSync(abs, 'utf-8');
      const lines = content.split('\n');
      for (let i = 0; i < lines.length; i++) {
        const line = lines[i];
        if (line.includes('codex exec') && line.includes('-C') && line.includes('$(git rev-parse --show-toplevel)')) {
          violations.push(`${rel}:${i + 1}`);
        }
      }
    }
    expect(violations).toEqual([]);
  });

  test('no generated SKILL.md has codex exec with inline $(git rev-parse --show-toplevel) in -C flag', () => {
    const violations: string[] = [];
    const skillMdGlob = new Bun.Glob('**/SKILL.md');
    const skillMdFiles = Array.from(skillMdGlob.scanSync({ cwd: ROOT, followSymlinks: false }));
    for (const rel of skillMdFiles) {
      const abs = path.join(ROOT, rel);
      if (!fs.existsSync(abs)) continue;
      const content = fs.readFileSync(abs, 'utf-8');
      const lines = content.split('\n');
      for (let i = 0; i < lines.length; i++) {
        const line = lines[i];
        if (line.includes('codex exec') && line.includes('-C') && line.includes('$(git rev-parse --show-toplevel)')) {
          violations.push(`${rel}:${i + 1}`);
        }
      }
    }
    expect(violations).toEqual([]);
  });

  test('codex review commands must be preceded by cd "$_REPO_ROOT" (no -C support)', () => {
    // codex review does not support -C, so the pattern must be:
    //   _REPO_ROOT=$(git rev-parse --show-toplevel) || { ... }
    //   cd "$_REPO_ROOT"
    //   codex review ...
    // NOT: codex review ... with inline $(git rev-parse --show-toplevel)
    const allFiles = [
      ...Array.from(tmplGlob.scanSync({ cwd: ROOT, followSymlinks: false })),
      ...Array.from(new Bun.Glob('**/SKILL.md').scanSync({ cwd: ROOT, followSymlinks: false })),
      ...fs.readdirSync(path.join(ROOT, 'scripts/resolvers'))
        .filter(f => f.endsWith('.ts'))
        .map(f => `scripts/resolvers/${f}`),
      'scripts/gen-skill-docs.ts',
    ];
    const violations: string[] = [];
    for (const rel of allFiles) {
      const abs = path.join(ROOT, rel);
      if (!fs.existsSync(abs)) continue;
      const content = fs.readFileSync(abs, 'utf-8');
      const lines = content.split('\n');
      for (let i = 0; i < lines.length; i++) {
        const line = lines[i];
        // Skip non-executable lines (markdown table cells, prose references)
        if (line.includes('|') && line.includes('`/codex review`')) continue;
        if (line.includes('`codex review`')) continue;
        // Check for codex review with inline $(git rev-parse)
        if (line.includes('codex review') && line.includes('$(git rev-parse --show-toplevel)')) {
          violations.push(`${rel}:${i + 1} — inline git rev-parse in codex review`);
        }
      }
    }
    expect(violations).toEqual([]);
  });

  test('codex review commands take their scope from a flag, never from prompt text', () => {
    // `codex review` scope comes ONLY from --base/--commit/--uncommitted. The
    // positional [PROMPT] is mutually exclusive with all three (#1428, #1479),
    // and a prompt-only `codex review` silently falls back to the *uncommitted
    // working-tree* scope (`git status --short; git diff`) — so describing the
    // diff range in prompt text produces a confident review of the wrong
    // changes, with no error. Both halves are pinned here:
    //   (a) every `codex review` invocation carries a scope flag, and
    //   (b) no invocation puts a positional prompt in front of that flag.
    //
    // This does NOT apply to `codex exec`, which is agentic and really does run
    // the git command it's told to — the adversarial pass legitimately scopes
    // itself in prompt text.
    const checkedFiles = [
      'scripts/resolvers/review.ts',
      'review/SKILL.md',
      'ship/SKILL.md',
      'codex/SKILL.md.tmpl',
      'codex/SKILL.md',
      // codex's scoped invocations moved into the carved review-mode section
      // (T9) — keep sweeping both the .tmpl source and the generated section.
      'codex/sections/review-mode.md.tmpl',
      'codex/sections/review-mode.md',
    ];

    const violations: string[] = [];
    for (const rel of checkedFiles) {
      // ship's codex/adversarial command moved into sections/adversarial.md (T9 carve).
      const content = rel === 'ship/SKILL.md' ? readShipUnion() : fs.readFileSync(path.join(ROOT, rel), 'utf-8');
      const lines = content.split('\n');
      for (let i = 0; i < lines.length; i++) {
        const line = lines[i];
        // Only inspect real shell invocations, not prose mentioning the command.
        if (line.includes('`codex review`')) continue;
        const match = line.match(/(?:^|[;&|]\s*|\s)codex\s+review\b(.*)$/);
        if (!match) continue;
        const rest = match[1];
        const scopeFlag = /--base\b|--commit\b|--uncommitted\b/;
        if (!scopeFlag.test(rest)) {
          // A quoted prompt with no scope flag is the silent-wrong-scope bug.
          if (/^\s*["'$]/.test(rest)) {
            violations.push(`${rel}:${i + 1} — prompt-only codex review (falls back to working-tree scope)`);
          }
          continue;
        }
        const beforeFlag = rest.split(scopeFlag)[0].trim();
        if (/^["'$]|^--\s*["']/.test(beforeFlag)) {
          violations.push(`${rel}:${i + 1} — positional prompt passed alongside a scope flag`);
        }
      }
    }
    expect(violations).toEqual([]);
  });
});

// ─── Learnings + Confidence Resolver Tests ─────────────────────

describe('LEARNINGS_SEARCH resolver', () => {
  const SEARCH_SKILLS = ['review', 'ship', 'plan-eng-review', 'investigate', 'office-hours', 'plan-ceo-review'];

  for (const skill of SEARCH_SKILLS) {
    test(`${skill} generated SKILL.md contains learnings search`, () => {
      const content = readSkillUnion(skill); // ship: moved to sections/plan-completion.md
      expect(content).toContain('Prior Learnings');
      expect(content).toContain('gstack-learnings-search');
    });
  }

  test('learnings search includes cross-project config check', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('cross_project_learnings');
    expect(content).toContain('--cross-project');
  });

  test('learnings search includes AskUserQuestion for first-time cross-project opt-in', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Enable cross-project learnings');
    expect(content).toContain('project-scoped only');
  });

  test('learnings search mentions prior learning applied display format', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Prior learning applied');
  });
});

describe('LEARNINGS_LOG resolver', () => {
  const LOG_SKILLS = ['review', 'retro', 'investigate'];

  for (const skill of LOG_SKILLS) {
    test(`${skill} generated SKILL.md contains learnings log`, () => {
      const content = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      expect(content).toContain('Capture Learnings');
      expect(content).toContain('gstack-learnings-log');
    });
  }

  test('learnings log documents all type values', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    for (const type of ['pattern', 'pitfall', 'preference', 'architecture', 'tool']) {
      expect(content).toContain(type);
    }
  });

  test('learnings log documents all source values', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    for (const source of ['observed', 'user-stated', 'inferred', 'cross-model']) {
      expect(content).toContain(source);
    }
  });

  test('learnings log includes files field for staleness detection', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('"files"');
    expect(content).toContain('staleness detection');
  });
});

describe('CONFIDENCE_CALIBRATION resolver', () => {
  const CONFIDENCE_SKILLS = ['review', 'ship', 'plan-eng-review', 'cso'];

  for (const skill of CONFIDENCE_SKILLS) {
    test(`${skill} generated SKILL.md contains confidence calibration`, () => {
      const content = readSkillUnion(skill); // ship: moved to sections/review-army.md
      expect(content).toContain('Confidence Calibration');
      expect(content).toContain('confidence score');
    });
  }

  test('confidence calibration includes scoring rubric with all tiers', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('9-10');
    expect(content).toContain('7-8');
    expect(content).toContain('5-6');
    expect(content).toContain('3-4');
    expect(content).toContain('1-2');
  });

  test('confidence calibration includes display rules', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('Show normally');
    expect(content).toContain('Suppress from main report');
  });

  test('confidence calibration includes finding format example', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('[P1] (confidence:');
    expect(content).toContain('SQL injection');
  });

  test('confidence calibration includes calibration learning feedback loop', () => {
    const content = fs.readFileSync(path.join(ROOT, 'review', 'SKILL.md'), 'utf-8');
    expect(content).toContain('calibration event');
    expect(content).toContain('Log the corrected pattern');
  });

  test('skills without confidence calibration do NOT contain it', () => {
    // office-hours and retro do NOT use confidence calibration
    for (const skill of ['office-hours', 'retro']) {
      const content = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      expect(content).not.toContain('## Confidence Calibration');
    }
  });
});

describe('gen-skill-docs prefix warning (#620/#578)', () => {
  const { execSync } = require('child_process');

  test('warns about skill_prefix when config has prefix=true', () => {
    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-prefix-warn-'));
    try {
      // Create a fake ~/.gstack/config.yaml with skill_prefix: true
      const fakeHome = tmpDir;
      const fakeGstack = path.join(fakeHome, '.gstack');
      fs.mkdirSync(fakeGstack, { recursive: true });
      fs.writeFileSync(path.join(fakeGstack, 'config.yaml'), 'skill_prefix: true\n');

      // Render into an out-dir under the fixture (the warning fires on any
      // non-dry-run generation) so the live tree is never rewritten.
      const outDir = path.join(tmpDir, 'out');
      const output = execSync(`bun run scripts/gen-skill-docs.ts --out-dir "${outDir}"`, {
        cwd: ROOT,
        env: { ...process.env, HOME: fakeHome },
        encoding: 'utf-8',
        timeout: 30000,
      });
      expect(output).toContain('skill_prefix is true');
      expect(output).toContain('gstack-relink');
    } finally {
      fs.rmSync(tmpDir, { recursive: true, force: true });
    }
  });

  test('no warning when skill_prefix is false or absent', () => {
    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-prefix-warn-'));
    try {
      const fakeHome = tmpDir;
      const fakeGstack = path.join(fakeHome, '.gstack');
      fs.mkdirSync(fakeGstack, { recursive: true });
      fs.writeFileSync(path.join(fakeGstack, 'config.yaml'), 'skill_prefix: false\n');

      const outDir = path.join(tmpDir, 'out');
      const output = execSync(`bun run scripts/gen-skill-docs.ts --out-dir "${outDir}"`, {
        cwd: ROOT,
        env: { ...process.env, HOME: fakeHome },
        encoding: 'utf-8',
        timeout: 30000,
      });
      expect(output).not.toContain('skill_prefix is true');
    } finally {
      fs.rmSync(tmpDir, { recursive: true, force: true });
    }
  });
});

describe('voice-triggers processing', () => {
  const { extractVoiceTriggers, processVoiceTriggers } = require('../scripts/gen-skill-docs') as {
    extractVoiceTriggers: (content: string) => string[];
    processVoiceTriggers: (content: string) => string;
  };

  test('extractVoiceTriggers parses valid YAML list', () => {
    const content = `---\nname: cso\ndescription: |\n  Security audit.\nvoice-triggers:\n  - "see-so"\n  - "security review"\n---\nBody`;
    const triggers = extractVoiceTriggers(content);
    expect(triggers).toEqual(['see-so', 'security review']);
  });

  test('extractVoiceTriggers returns [] when no field present', () => {
    const content = `---\nname: qa\ndescription: |\n  QA testing.\n---\nBody`;
    expect(extractVoiceTriggers(content)).toEqual([]);
  });

  test('processVoiceTriggers appends voice triggers to description', () => {
    const content = `---\nname: cso\ndescription: |\n  Security audit. (gstack)\nvoice-triggers:\n  - "see-so"\n  - "security review"\n---\nBody`;
    const result = processVoiceTriggers(content);
    expect(result).toContain('Voice triggers (speech-to-text aliases): "see-so", "security review".');
  });

  test('processVoiceTriggers strips voice-triggers field from output', () => {
    const content = `---\nname: cso\ndescription: |\n  Security audit. (gstack)\nvoice-triggers:\n  - "see-so"\n---\nBody`;
    const result = processVoiceTriggers(content);
    expect(result).not.toContain('voice-triggers:');
  });

  test('processVoiceTriggers returns content unchanged when no voice-triggers', () => {
    const content = `---\nname: qa\ndescription: |\n  QA testing.\n---\nBody`;
    expect(processVoiceTriggers(content)).toBe(content);
  });

  test('generated CSO SKILL.md contains voice triggers in description', () => {
    const content = fs.readFileSync(path.join(ROOT, 'cso', 'SKILL.md'), 'utf-8');
    expect(content).toContain('"see-so"');
    expect(content).toContain('Voice triggers (speech-to-text aliases):');
  });

  test('generated CSO SKILL.md does NOT contain raw voice-triggers field', () => {
    const content = fs.readFileSync(path.join(ROOT, 'cso', 'SKILL.md'), 'utf-8');
    const fmEnd = content.indexOf('\n---', 4);
    const frontmatter = content.slice(0, fmEnd);
    expect(frontmatter).not.toContain('voice-triggers:');
  });

  // Gen-time-only keys: interactive + benefits-from are read from the .tmpl by
  // buildContext; the generated copy has no reader (the host reads name/
  // description/allowed-tools/hooks; gbrain: is runtime-read and NOT stripped).
  // Pin the strip so a stripFields refactor can't silently re-add the always-on
  // frontmatter weight — mirrors the voice-triggers pins above.
  test('generated SKILL.md strips gen-time-only keys the .tmpl still declares', () => {
    const tmpl = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md.tmpl'), 'utf-8');
    const tmplFm = tmpl.slice(0, tmpl.indexOf('\n---', 4));
    expect(tmplFm).toContain('interactive:');
    expect(tmplFm).toContain('benefits-from:');

    const generated = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md'), 'utf-8');
    const genFm = generated.slice(0, generated.indexOf('\n---', 4));
    expect(genFm).not.toContain('interactive:');
    expect(genFm).not.toContain('benefits-from:');

    // The runtime-read and host-read keys survive the strip.
    const investigate = fs.readFileSync(path.join(ROOT, 'investigate', 'SKILL.md'), 'utf-8');
    const invFm = investigate.slice(0, investigate.indexOf('\n---', 4));
    expect(invFm).toContain('hooks:');
    expect(invFm).toContain('gbrain:');
  });
});

describe('plan-mode-info resolver (handshake-replacement)', () => {
  const REVIEW_SKILLS = [
    'plan-ceo-review',
    'plan-eng-review',
    'plan-design-review',
    'plan-devex-review',
  ];

  // Header for the vestigial handshake that was removed. If it ever reappears,
  // someone accidentally re-introduced the resolver.
  const HANDSHAKE_MARKER = '## Plan Mode Handshake';
  // Header for the new plan-mode-info section (previously lived at the tail
  // of completion-status.ts; now hoisted to position 1 of the preamble).
  const PLAN_MODE_INFO_MARKER = '## Skill Invocation During Plan Mode';

  test('vestigial handshake is absent from all generated Claude SKILL.md files', () => {
    // Scan every generated SKILL.md under ROOT (top-level directory per skill).
    // Using fs.readdirSync + filter instead of a glob so we catch any skill
    // that gets added later without updating this list.
    const entries = fs.readdirSync(ROOT, { withFileTypes: true });
    let checked = 0;
    for (const entry of entries) {
      if (!entry.isDirectory()) continue;
      const skillMd = path.join(ROOT, entry.name, 'SKILL.md');
      if (!fs.existsSync(skillMd)) continue;
      const content = fs.readFileSync(skillMd, 'utf-8');
      expect(content, `handshake marker in ${entry.name}/SKILL.md`).not.toContain(HANDSHAKE_MARKER);
      checked++;
    }
    expect(checked).toBeGreaterThan(0);
  });

  test('vestigial handshake is absent from non-Claude host outputs', () => {
    // Non-Claude hosts render to hostSubdirs (.agents/, .openclaw/, etc). The
    // plan-mode-info resolver has no host-scoping — all hosts get the new
    // section, none get the old handshake. Scan every candidate host tree in
    // the module-level out-dir render (--host all), which is always present —
    // so the check can no longer silently degrade to a console warning.
    const hostDirs = ['.agents', '.openclaw', '.opencode', '.factory', '.hermes', '.kiro', '.cursor', '.slate'];
    let checked = 0;
    for (const host of hostDirs) {
      const skillsRoot = path.join(EXTERNAL_OUT, host, 'skills');
      if (!fs.existsSync(skillsRoot)) continue;
      const entries = fs.readdirSync(skillsRoot, { withFileTypes: true });
      for (const entry of entries) {
        if (!entry.isDirectory()) continue;
        const skillMd = path.join(skillsRoot, entry.name, 'SKILL.md');
        if (!fs.existsSync(skillMd)) continue;
        const content = fs.readFileSync(skillMd, 'utf-8');
        expect(content, `handshake marker in ${host}/skills/${entry.name}/SKILL.md`).not.toContain(HANDSHAKE_MARKER);
        checked++;
      }
    }
    expect(checked).toBeGreaterThan(0);
  });

  test.each(REVIEW_SKILLS)(
    '%s/SKILL.md contains the new plan-mode-info section near the top',
    (skill) => {
      const content = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      const idx = content.indexOf(PLAN_MODE_INFO_MARKER);
      expect(idx).toBeGreaterThan(0);
      // Position 1 in preamble composition = within the first ~300 lines.
      // Roughly translates to first ~15KB of text.
      expect(idx).toBeLessThan(15_000);
    },
  );

  test('plan-mode-info is wired BEFORE generateUpgradeCheck in preamble', () => {
    // Token-reduction Phase 2: generateUpgradeCheck's render output is now
    // ONLY the steady-state PROACTIVE-false + SKILL_PREFIX rules (the
    // UPGRADE_AVAILABLE prose emits from bin/gstack-skill-start at runtime),
    // so those rules are the resolver's order marker.
    const content = fs.readFileSync(
      path.join(ROOT, 'plan-ceo-review', 'SKILL.md'),
      'utf-8',
    );
    const planModeIdx = content.indexOf(PLAN_MODE_INFO_MARKER);
    const upgradeIdx = content.indexOf('If `PROACTIVE` is `"false"`');
    expect(planModeIdx).toBeGreaterThan(0);
    expect(upgradeIdx).toBeGreaterThan(0);
    expect(planModeIdx).toBeLessThan(upgradeIdx);
  });

  test('0C-bis STOP block present in plan-ceo-review/SKILL.md', () => {
    const content = fs.readFileSync(path.join(ROOT, 'plan-ceo-review', 'SKILL.md'), 'utf-8');
    const presentIdx = content.indexOf('Present these approach options via AskUserQuestion');
    const preludeIdx = content.indexOf('### 0D-prelude');
    expect(presentIdx).toBeGreaterThan(0);
    expect(preludeIdx).toBeGreaterThan(presentIdx);
    const between = content.slice(presentIdx, preludeIdx);
    expect(between).toContain('**STOP.**');
    expect(between).toContain('Do NOT proceed to Step 0D or 0F until the user responds to 0C-bis');
  });
});

// GSTACK REVIEW REPORT report-at-bottom contract — verifies the prompt-text
// fix in scripts/resolvers/review.ts (the load-bearing change for the
// "report not at bottom of plan in plan mode" bug). The bug is in the
// prompt's contradictory write-flow instructions, not in observable
// runtime behavior we can cheaply gate in CI. Verifying the prompt text
// directly is the deterministic equivalent of the regression test the
// PTY harness can't reliably drive (autoplan needs auto-progression of
// AskUserQuestions to reach the report-write step, which the harness
// doesn't support today).
describe('GSTACK REVIEW REPORT delete-then-append flow', () => {
  const PLAN_REVIEW_SKILLS = [
    'plan-ceo-review',
    'plan-design-review',
    'plan-devex-review',
    'plan-eng-review',
  ];

  for (const skill of PLAN_REVIEW_SKILLS) {
    test(`${skill}/SKILL.md prescribes delete-then-append, not in-place replace`, () => {
      // Carved skills (v2 plan Phase B) relocate the review-report prose into
      // sections/*.md; readSkillUnion follows the content wherever the carve put it.
      const content = readSkillUnion(skill);

      // The new (correct) instruction must be present.
      expect(content).toContain('delete-then-append flow');
      expect(content).toContain('never mid-file');
      expect(content).toContain('Do NOT replace the section in place');

      // The old contradictory bullets must be gone. The signature phrase
      // from the buggy prompt was 'replace it entirely using the Edit tool'
      // which is what allowed mid-file reports to stay mid-file.
      expect(content).not.toContain('replace it** entirely using the Edit tool');
      expect(content).not.toContain('If it was found mid-file, move it');
    });
  }

  test('scripts/resolvers/review.ts source has the rewritten flow', () => {
    const src = fs.readFileSync(path.join(ROOT, 'scripts', 'resolvers', 'review.ts'), 'utf-8');
    expect(src).toContain('delete-then-append flow');
    expect(src).toContain('never mid-file');
    expect(src).toContain('Do NOT replace the section in place');
    // Old contradictory bullets are gone from the source resolver.
    expect(src).not.toContain('replace it** entirely using the Edit tool');
    expect(src).not.toContain('If it was found mid-file, move it');
  });
});

describe('LEARNINGS_SEARCH resolver: query parameter', () => {
  // Lazy-load resolver and types after describe block to keep test file self-contained.
  const { generateLearningsSearch } = require('../scripts/resolvers/learnings');
  const { HOST_PATHS } = require('../scripts/resolvers/types');

  const claudeCtx = {
    skillName: 'test',
    tmplPath: 'test/SKILL.md.tmpl',
    host: 'claude',
    paths: HOST_PATHS.claude,
  };
  const codexCtx = { ...claudeCtx, host: 'codex', paths: HOST_PATHS.codex };

  test('no args → bash does not contain --query (backwards-compat)', () => {
    const out = generateLearningsSearch(claudeCtx);
    expect(out).not.toContain('--query');
  });

  test('claude host + query=foo bar → both cross-project and project-scoped branches contain --query', () => {
    const out = generateLearningsSearch(claudeCtx, ['query=foo bar']);
    // Both branches of the if/else must carry the flag.
    const lines = out.split('\n').filter(l => l.includes('gstack-learnings-search'));
    expect(lines.length).toBeGreaterThanOrEqual(2);
    for (const line of lines) {
      expect(line).toContain('--query "foo bar"');
    }
  });

  test('codex host + query=foo bar → codex bash variant contains --query', () => {
    const out = generateLearningsSearch(codexCtx, ['query=foo bar']);
    expect(out).toContain('--query "foo bar"');
    expect(out).toContain('$GSTACK_BIN/gstack-learnings-search');
  });

  test('empty value query= → bash does not contain --query (locked semantics: falls through)', () => {
    const claudeOut = generateLearningsSearch(claudeCtx, ['query=']);
    expect(claudeOut).not.toContain('--query');
    const codexOut = generateLearningsSearch(codexCtx, ['query=']);
    expect(codexOut).not.toContain('--query');
  });

  test('shell-injection chars in query= → throws at gen-time (defense in depth)', () => {
    for (const bad of ['$(whoami)', '`cmd`', 'a;b', 'a&b', 'a"b', 'a\\b', 'foo$x']) {
      expect(() => generateLearningsSearch(claudeCtx, [`query=${bad}`])).toThrow(/alphanumeric/);
    }
  });
});

describe('EXIT PLAN MODE GATE placement', () => {
  // Fresh skill list — do NOT reuse REVIEW_SKILLS upstream (3 entries, missing plan-devex).
  const planSkills = ['plan-eng-review', 'plan-ceo-review', 'plan-design-review', 'plan-devex-review'];

  // Strip fenced code blocks before matching headings — PLAN_FILE_REVIEW_REPORT
  // already contains `## GSTACK REVIEW REPORT` inside a markdown example fence,
  // and the gate text itself shows `## GSTACK REVIEW REPORT` inside a fence too.
  const stripFences = (md: string) => md.replace(/```[\s\S]*?```/g, '');

  test('gate is the terminal ## heading in every plan-* review SKILL.md', () => {
    for (const skill of planSkills) {
      const md = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      const stripped = stripFences(md);
      const headings = [...stripped.matchAll(/^## .+$/gm)].map(m => m[0]);
      const lastH2 = headings.at(-1);
      expect(lastH2, `${skill}/SKILL.md last ## heading (fences stripped)`).toBe('## EXIT PLAN MODE GATE (BLOCKING)');
      expect(md, `${skill}/SKILL.md gate body`).toContain('Failing this gate and calling ExitPlanMode anyway is a contract violation');
    }
  });

  test('codex/SKILL.md contains gate (mid-file per D5; Step 2B/2C follow)', () => {
    const codex = fs.readFileSync(path.join(ROOT, 'codex', 'SKILL.md'), 'utf-8');
    expect(codex).toContain('## EXIT PLAN MODE GATE (BLOCKING)');
    expect(codex).toContain('Failing this gate and calling ExitPlanMode anyway is a contract violation');
  });
});

describe('scope-gate exceptions drift-guard', () => {
  // The plan-mode auto-select-B exceptions block is hand-duplicated in the
  // plan-eng-review and plan-design-review templates (matching the gate
  // around it, which predates this block). The two copies must stay
  // byte-identical modulo exactly two known variant slots:
  //   1. the plan-mode bullet's action tail (Design Doc Check vs pre-review
  //      audit + mockups),
  //   2. the named-target vocabulary ("a path, a doc" vs "a path, a page, a doc").
  // A future edit to one copy that silently misses the other fails here
  // instead of drifting. The real fix (shared {{SCOPE_GATE}} resolver) is a
  // filed TODO — this guard is the stopgap that makes the duplication safe.
  const START_MARKER = '**Exceptions — check in this order, BEFORE asking:**';
  const END_MARKER = 'in any mode — it is a hard STOP.';

  function extractExceptionsBlock(skill: string): string {
    const md = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
    const start = md.indexOf(START_MARKER);
    expect(start, `${skill}/SKILL.md: exceptions block start marker present`).toBeGreaterThan(-1);
    const end = md.indexOf(END_MARKER, start);
    expect(end, `${skill}/SKILL.md: exceptions block end marker present`).toBeGreaterThan(start);
    return md.slice(start, end + END_MARKER.length);
  }

  const normalizeVariantSlots = (block: string) =>
    block
      .replace('Then run the Design Doc Check and Step 0 against that plan.', '<ACTION_TAIL>')
      .replace('Then run the pre-review audit, mockups, and Step 0 against that plan.', '<ACTION_TAIL>')
      .replace('a path, a page, a doc they pasted,', 'a path, a doc they pasted,');

  test('eng and design exceptions blocks are identical modulo the two variant slots', () => {
    const eng = normalizeVariantSlots(extractExceptionsBlock('plan-eng-review'));
    const design = normalizeVariantSlots(extractExceptionsBlock('plan-design-review'));
    expect(eng).toBe(design);
    // The action tail must actually have been normalized in both (guards
    // against a rewording that bypasses the normalizer and vacuously passes).
    expect(eng).toContain('<ACTION_TAIL>');
  });

  test('exceptions block carries the announcement string the PTY detectors pin', () => {
    for (const skill of ['plan-eng-review', 'plan-design-review']) {
      const block = extractExceptionsBlock(skill);
      expect(block, `${skill}: verbatim announcement`).toContain(
        'Scope gate: plan mode — auto-selected B (reviewing <target>).',
      );
    }
  });

  test('gate menu carries the question strings the PTY question detector pins', () => {
    // isScopeGateQuestionVisible (claude-pty-runner.ts) anchors on the
    // question text + option A's body. If the menu is reworded without
    // updating the detector, the paid smokes' must-stay-false assertions go
    // vacuous — this free pin fails first.
    for (const skill of ['plan-eng-review', 'plan-design-review']) {
      const md = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      expect(md, `${skill}: gate question text`).toContain('What should I review?');
      expect(md, `${skill}: option A body text`).toContain('The current branch diff');
    }
  });
});

describe('GSTACK REVIEW REPORT mandatory unresolved-decisions status', () => {
  // Report text rides in PLAN_FILE_REVIEW_REPORT → every report consumer gets it.
  // devex-review is a report consumer but NOT a gate consumer, so the two target
  // sets differ (CP5/CX5). Regression guard: a future token-cut that drops the
  // unresolved-status line again fails here. See plan-flag-unresolved-issues.
  const REPORT_CONSUMERS = [
    'plan-ceo-review',
    'plan-eng-review',
    'plan-design-review',
    'plan-devex-review',
    'codex',
    'devex-review',
  ];
  // Gate text rides in EXIT_PLAN_MODE_GATE (lives in SKILL.md, not sections).
  const GATE_SKILLS = [
    'plan-ceo-review',
    'plan-eng-review',
    'plan-design-review',
    'plan-devex-review',
    'codex',
  ];

  for (const skill of REPORT_CONSUMERS) {
    test(`${skill}: report mandates the unresolved-decisions status as final content`, () => {
      const content = readSkillUnion(skill);
      expect(content).toContain('NO UNRESOLVED DECISIONS');
      // The "never omit / always final" contract must be present, not just the phrase.
      expect(content).toContain('Unresolved-decisions status (MANDATORY');
      expect(content).toMatch(/never omitted/);
      // \s+ tolerates prose line-wraps within "final non-whitespace line".
      expect(content).toMatch(/final\s+non-whitespace\s+line/);
    });
  }

  for (const skill of GATE_SKILLS) {
    test(`${skill}: exit gate blocks unless the unresolved status is the final line`, () => {
      const md = fs.readFileSync(path.join(ROOT, skill, 'SKILL.md'), 'utf-8');
      // Gate check #4 — present, sentinel named, and explicitly blocking (no escape).
      expect(md).toContain('NO UNRESOLVED DECISIONS');
      expect(md).toContain('FINAL non-whitespace line is the unresolved-decisions');
      expect(md).toContain('FAILS the gate');
    });
  }

  test('scripts/resolvers/review.ts source carries the mandatory block + blocking gate', () => {
    const src = fs.readFileSync(path.join(ROOT, 'scripts', 'resolvers', 'review.ts'), 'utf-8');
    // Report resolver: mandatory, never-omitted, exact sentinel, anti-double-count algorithm.
    expect(src).toContain('Unresolved-decisions status (MANDATORY');
    expect(src).toContain('NO UNRESOLVED DECISIONS');
    expect(src).toContain('avoids double-counting');
    expect(src).toContain('DROP the current skill');
    // Gate resolver: the blocking final-line check with no "if applicable" escape.
    expect(src).toContain('FINAL non-whitespace line is the unresolved-decisions');
    expect(src).toContain('FAILS the gate');
    // The old soft wording must be gone from the gate.
    expect(src).not.toContain('absorbs CODEX / CROSS-MODEL / UNRESOLVED lines if applicable');
  });
});

// ─── {{PREAMBLE}} requires an explicit preamble-tier ────────

describe('PREAMBLE resolution requires declared preamble-tier', () => {
  test('resolving {{PREAMBLE}} without preamble-tier throws with the template path', async () => {
    const { generatePreamble } = await import('../scripts/resolvers/preamble');
    const { HOST_PATHS } = await import('../scripts/resolvers/types');
    const ctx = {
      skillName: 'tierless-skill',
      tmplPath: 'tierless-skill/SKILL.md.tmpl',
      host: 'claude' as const,
      paths: HOST_PATHS.claude,
      // preambleTier deliberately absent — the generator must refuse to default it.
    };
    expect(() => generatePreamble(ctx)).toThrow(/tierless-skill\/SKILL\.md\.tmpl/);
    expect(() => generatePreamble(ctx)).toThrow(/preamble-tier/);
  });

  test('every template that resolves {{PREAMBLE}} declares preamble-tier in frontmatter', () => {
    const entries = fs.readdirSync(ROOT, { withFileTypes: true });
    const offenders: string[] = [];
    const checkTmpl = (tmplPath: string) => {
      const tmpl = fs.readFileSync(tmplPath, 'utf-8');
      if (tmpl.includes('{{PREAMBLE}}') && !/^preamble-tier:\s*\d+$/m.test(tmpl)) {
        offenders.push(path.relative(ROOT, tmplPath));
      }
    };
    checkTmpl(path.join(ROOT, 'SKILL.md.tmpl'));
    for (const e of entries) {
      if (!e.isDirectory() || e.name.startsWith('.') || e.name === 'node_modules') continue;
      const tmplPath = path.join(ROOT, e.name, 'SKILL.md.tmpl');
      if (fs.existsSync(tmplPath)) checkTmpl(tmplPath);
    }
    expect(offenders).toEqual([]);
  });
});

// ---------------------------------------------------------------------------
// #2499: gbrain MCP detection must read BOTH ~/.claude.json scopes.
// Claude Code registers MCP servers at user scope (.mcpServers) and project
// scope (.projects["/abs/path"].mcpServers — what `claude mcp add` without
// --scope user writes). The rendered brain-sync block previously read only
// user scope, so a correctly configured project-scoped brain was invisible.
// ---------------------------------------------------------------------------
describe('brain-sync block reads project-scoped MCP registrations (#2499)', () => {
  // Phase 1: the artifacts-sync bash (including the MCP-scope jq probe) moved
  // from the rendered SKILL.md into bin/gstack-skill-start. Pin the LIVE
  // script bytes — same assertions, new home. The render carries only the
  // ARTIFACTS_SYNC interpretation prose.
  const rendered = fs.readFileSync(path.join(ROOT, 'bin', 'gstack-skill-start'), 'utf-8');

  test('rendered _GBRAIN_MCP_ENTRY jq resolves project scope with nearest-ancestor cwd match', () => {
    const line = rendered.split('\n').find((l) => l.includes('_GBRAIN_MCP_ENTRY=$('));
    expect(line).toBeDefined();
    // Project-scope read present, driven by $PWD.
    expect(line!).toContain('--arg cwd "$PWD"');
    expect(line!).toContain('.projects');
    // User scope still resolved first.
    expect(line!).toContain('.mcpServers.gbrain');
    // The old user-scope-only filter is gone from the rendered output.
    expect(rendered).not.toContain('.mcpServers.gbrain.type // .mcpServers.gbrain.transport');
    expect(rendered).not.toContain(".mcpServers.gbrain.url // empty");
  });

  test('rendered _GBRAIN_MCP_TYPE and _GBRAIN_HOST extract from the resolved entry', () => {
    const typeLine = rendered.split('\n').find((l) => l.includes('_GBRAIN_MCP_TYPE=$('));
    const hostLine = rendered.split('\n').find((l) => l.includes('_GBRAIN_HOST=$('));
    expect(typeLine).toBeDefined();
    expect(hostLine).toBeDefined();
    expect(typeLine!).toContain('_GBRAIN_MCP_ENTRY');
    expect(hostLine!).toContain('_GBRAIN_MCP_ENTRY');
  });

  test('rendered jq lines FUNCTION: project-scoped registration resolves for a cwd inside the project', () => {
    // Execute the exact rendered bytes, not a re-derivation: extract the
    // _GBRAIN_MCP_ENTRY + _GBRAIN_MCP_TYPE lines from the generated SKILL.md
    // and run them in bash against a fixture ~/.claude.json that carries ONLY
    // a project-scoped gbrain registration.
    const lines = rendered.split('\n');
    const entryLine = lines.find((l) => l.includes('_GBRAIN_MCP_ENTRY=$('));
    const typeLine = lines.find((l) => l.includes('_GBRAIN_MCP_TYPE=$('));
    expect(entryLine).toBeDefined();
    expect(typeLine).toBeDefined();

    const tmpHome = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-2499-home-'));
    const projectDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-2499-proj-'));
    const nestedCwd = path.join(projectDir, 'src', 'deep');
    fs.mkdirSync(nestedCwd, { recursive: true });
    try {
      fs.writeFileSync(
        path.join(tmpHome, '.claude.json'),
        JSON.stringify({
          projects: {
            [projectDir]: {
              mcpServers: { gbrain: { type: 'http', url: 'https://brain.example.com/mcp' } },
            },
          },
        }),
      );
      const script = `cd "$1" || exit 1\n${entryLine!.trim()}\n${typeLine!.trim()}\necho "RESOLVED:$_GBRAIN_MCP_TYPE"`;
      const r = spawnSync('bash', ['-c', script, 'bash', nestedCwd], {
        encoding: 'utf-8',
        env: { ...process.env, HOME: tmpHome },
        timeout: 10_000,
      });
      expect(r.stdout).toContain('RESOLVED:http');

      // Discriminator: a cwd OUTSIDE the project must NOT resolve it.
      const outside = spawnSync('bash', ['-c', script, 'bash', os.tmpdir()], {
        encoding: 'utf-8',
        env: { ...process.env, HOME: tmpHome },
        timeout: 10_000,
      });
      expect(outside.stdout).toContain('RESOLVED:\n');
    } finally {
      fs.rmSync(tmpHome, { recursive: true, force: true });
      fs.rmSync(projectDir, { recursive: true, force: true });
    }
  });
});