diff --git a/agents/gsd-planner.md b/agents/gsd-planner.md
index d5101a3d..3fb603cb 100644
--- a/agents/gsd-planner.md
+++ b/agents/gsd-planner.md
@@ -215,6 +215,8 @@ Every task has four required fields:
 
 **Nyquist Rule:** Every `<verify>` must include an `<automated>` command. If no test exists yet, set `<automated>MISSING — Wave 0 must create {test_file} first</automated>` and create a Wave 0 task that generates the test scaffold.
 
+**Grep gate hygiene:** `grep -c` counts comments — header prose triggers its own invariant ("self-invalidating grep gate"). Use `grep -v '^#' | grep -c token`. Bare `== 0` gates on unfiltered files are forbidden.
+
 **<done>:** Acceptance criteria - measurable state of completion.
 - Good: "Valid credentials return 200 + JWT cookie, invalid credentials return 401"
 - Bad: "Authentication is complete"
diff --git a/bin/install.js b/bin/install.js
index 30bf7742..2ae0466f 100755
--- a/bin/install.js
+++ b/bin/install.js
@@ -1006,9 +1006,15 @@ function convertClaudeToAntigravityContent(content, isGlobal = false) {
   if (isGlobal) {
     c = c.replace(/\$HOME\/\.claude\//g, '$HOME/.gemini/antigravity/');
     c = c.replace(/~\/\.claude\//g, '~/.gemini/antigravity/');
+    // Bare form (no trailing slash) — must come after slash form to avoid double-replace
+    c = c.replace(/\$HOME\/\.claude\b/g, '$HOME/.gemini/antigravity');
+    c = c.replace(/~\/\.claude\b/g, '~/.gemini/antigravity');
   } else {
     c = c.replace(/\$HOME\/\.claude\//g, '.agent/');
     c = c.replace(/~\/\.claude\//g, '.agent/');
+    // Bare form (no trailing slash) — must come after slash form to avoid double-replace
+    c = c.replace(/\$HOME\/\.claude\b/g, '.agent');
+    c = c.replace(/~\/\.claude\b/g, '.agent');
   }
   c = c.replace(/\.\/\.claude\//g, './.agent/');
   c = c.replace(/\.claude\//g, '.agent/');
diff --git a/get-shit-done/workflows/new-milestone.md b/get-shit-done/workflows/new-milestone.md
index b7b0afa1..4ec4b9f5 100644
--- a/get-shit-done/workflows/new-milestone.md
+++ b/get-shit-done/workflows/new-milestone.md
@@ -208,7 +208,21 @@ AGENT_SKILLS_SYNTHESIZER=$(gsd-sdk query agent-skills gsd-synthesizer 2>/dev/nul
 AGENT_SKILLS_ROADMAPPER=$(gsd-sdk query agent-skills gsd-roadmapper 2>/dev/null)
 ```
 
-Extract from init JSON: `researcher_model`, `synthesizer_model`, `roadmapper_model`, `commit_docs`, `research_enabled`, `current_milestone`, `project_exists`, `roadmap_exists`, `latest_completed_milestone`, `phase_dir_count`, `phase_archive_path`.
+Extract from init JSON: `researcher_model`, `synthesizer_model`, `roadmapper_model`, `commit_docs`, `research_enabled`, `current_milestone`, `project_exists`, `roadmap_exists`, `latest_completed_milestone`, `phase_dir_count`, `phase_archive_path`, `agents_installed`, `missing_agents`.
+
+**If `agents_installed` is false:** Display a warning before proceeding:
+```
+⚠ GSD agents not installed. The following agents are missing from your agents directory:
+  {missing_agents joined with newline}
+
+Subagent spawns (gsd-project-researcher, gsd-research-synthesizer, gsd-roadmapper) will fail
+with "agent type not found". Run the installer with --global to make agents available:
+
+  npx get-shit-done-cc@latest --global
+
+Proceeding without research subagents — roadmap will be generated inline.
+```
+Skip the parallel research spawn step and generate the roadmap inline.
 
 ## 7.5 Reset-phase safety (only when `--reset-phase-numbers`)
 
diff --git a/get-shit-done/workflows/new-project.md b/get-shit-done/workflows/new-project.md
index b7aef797..8c0f662f 100644
--- a/get-shit-done/workflows/new-project.md
+++ b/get-shit-done/workflows/new-project.md
@@ -64,7 +64,21 @@ AGENT_SKILLS_SYNTHESIZER=$(gsd-sdk query agent-skills gsd-synthesizer 2>/dev/nul
 AGENT_SKILLS_ROADMAPPER=$(gsd-sdk query agent-skills gsd-roadmapper 2>/dev/null)
 ```
 
-Parse JSON for: `researcher_model`, `synthesizer_model`, `roadmapper_model`, `commit_docs`, `project_exists`, `has_codebase_map`, `planning_exists`, `has_existing_code`, `has_package_file`, `is_brownfield`, `needs_codebase_map`, `has_git`, `project_path`.
+Parse JSON for: `researcher_model`, `synthesizer_model`, `roadmapper_model`, `commit_docs`, `project_exists`, `has_codebase_map`, `planning_exists`, `has_existing_code`, `has_package_file`, `is_brownfield`, `needs_codebase_map`, `has_git`, `project_path`, `agents_installed`, `missing_agents`.
+
+**If `agents_installed` is false:** Display a warning before proceeding:
+```
+⚠ GSD agents not installed. The following agents are missing from your agents directory:
+  {missing_agents joined with newline}
+
+Subagent spawns (gsd-project-researcher, gsd-research-synthesizer, gsd-roadmapper) will fail
+with "agent type not found". Run the installer with --global to make agents available:
+
+  npx get-shit-done-cc@latest --global
+
+Proceeding without research subagents — roadmap will be generated inline.
+```
+Skip Steps 6–7 (parallel research and synthesis) and proceed directly to roadmap creation in Step 8.
 
 **Detect runtime and set instruction file name:**
 
diff --git a/get-shit-done/workflows/plan-phase.md b/get-shit-done/workflows/plan-phase.md
index 741a5ea2..8346f961 100644
--- a/get-shit-done/workflows/plan-phase.md
+++ b/get-shit-done/workflows/plan-phase.md
@@ -1145,6 +1145,16 @@ gsd-sdk query state.planned-phase --phase "${PHASE_NUMBER}" --name "${PHASE_NAME
 
 This updates STATUS to "Ready to execute", sets the correct plan count, and timestamps Last Activity.
 
+## 13c. Commit Plans if commit_docs is true
+
+If `commit_docs` is true (from the init JSON parsed in step 1), commit the generated plan artifacts:
+
+```bash
+gsd-sdk query commit "docs(${PADDED_PHASE}): create phase plan" --files "${PHASE_DIR}"/*-PLAN.md .planning/STATE.md
+```
+
+This commits all PLAN.md files for the phase plus the updated STATE.md to version-control the planning artifacts. Skip this step if `commit_docs` is false.
+
 ## 14. Present Final Status
 
 Route to `<offer_next>` OR `auto_advance` depending on flags/config.
diff --git a/tests/bug-2399-commit-docs-plan-phase.test.cjs b/tests/bug-2399-commit-docs-plan-phase.test.cjs
new file mode 100644
index 00000000..2ef121fc
--- /dev/null
+++ b/tests/bug-2399-commit-docs-plan-phase.test.cjs
@@ -0,0 +1,72 @@
+/**
+ * Bug #2399: commit_docs:true is ignored in plan-phase
+ *
+ * The plan-phase workflow generates plan artifacts but never commits them even
+ * when commit_docs is true. A step between 13b and 14 must commit the PLAN.md
+ * files and updated STATE.md when commit_docs is set.
+ */
+
+const { describe, test } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('fs');
+const path = require('path');
+
+const PLAN_PHASE_PATH = path.join(__dirname, '..', 'get-shit-done', 'workflows', 'plan-phase.md');
+
+describe('plan-phase commit_docs support (#2399)', () => {
+  test('plan-phase.md exists', () => {
+    assert.ok(fs.existsSync(PLAN_PHASE_PATH), 'get-shit-done/workflows/plan-phase.md must exist');
+  });
+
+  test('plan-phase.md has a commit step for plan artifacts', () => {
+    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
+    // Must contain a commit call that references PLAN.md files
+    assert.ok(
+      content.includes('PLAN.md') && content.includes('commit'),
+      'plan-phase.md must include a commit step that references PLAN.md files'
+    );
+  });
+
+  test('plan-phase.md commit step is gated on commit_docs', () => {
+    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
+    // The commit step must be conditional on commit_docs
+    assert.ok(
+      content.includes('commit_docs'),
+      'plan-phase.md must reference commit_docs to gate the plan commit step'
+    );
+  });
+
+  test('plan-phase.md commit step references STATE.md', () => {
+    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
+    // Should commit STATE.md alongside PLAN.md files
+    assert.ok(
+      content.includes('STATE.md'),
+      'plan-phase.md commit step should include STATE.md to capture planning completion state'
+    );
+  });
+
+  test('plan-phase.md has a step 13c that commits plan artifacts', () => {
+    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
+    const step13b = content.indexOf('## 13b.');
+    const step14 = content.indexOf('## 14.');
+    // Look for the step 13c section (or any commit step between 13b and 14)
+    const step13c = content.indexOf('## 13c.');
+
+    assert.ok(step13b !== -1, '## 13b. section must exist');
+    assert.ok(step14 !== -1, '## 14. section must exist');
+    assert.ok(step13c !== -1, '## 13c. step must exist (commit plans step)');
+    assert.ok(
+      step13c > step13b && step13c < step14,
+      `Step 13c (at ${step13c}) must appear between step 13b (at ${step13b}) and step 14 (at ${step14})`
+    );
+  });
+
+  test('plan-phase.md uses gsd-sdk query commit for the plan commit', () => {
+    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
+    // Must use gsd-sdk query commit (not raw git) so commit_docs guard in gsd-tools is respected
+    assert.ok(
+      content.includes('gsd-sdk query commit') || content.includes('gsd-tools') || content.includes('gsd-sdk'),
+      'plan-phase.md plan commit step must use gsd-sdk query commit (not raw git commit)'
+    );
+  });
+});
diff --git a/tests/bug-2418-antigravity-bare-path.test.cjs b/tests/bug-2418-antigravity-bare-path.test.cjs
new file mode 100644
index 00000000..769ed279
--- /dev/null
+++ b/tests/bug-2418-antigravity-bare-path.test.cjs
@@ -0,0 +1,146 @@
+/**
+ * Bug #2418: Found unreplaced .claude path reference(s) in Antigravity install
+ *
+ * The Antigravity path converter handles ~/.claude/ (with trailing slash) but
+ * misses bare ~/.claude (without trailing slash), leaving unreplaced references
+ * that cause the installer to warn about leaked paths.
+ *
+ * Files affected: agents/gsd-debugger.md (configDir = ~/.claude) and
+ * get-shit-done/workflows/update.md (comment with e.g. ~/.claude).
+ */
+
+process.env.GSD_TEST_MODE = '1';
+
+const { describe, test } = require('node:test');
+const assert = require('node:assert/strict');
+
+const { convertClaudeToAntigravityContent } = require('../bin/install.js');
+
+describe('convertClaudeToAntigravityContent bare path replacement (#2418)', () => {
+  describe('global install', () => {
+    test('replaces ~/.claude (bare, no trailing slash) with ~/.gemini/antigravity', () => {
+      const input = 'configDir = ~/.claude';
+      const result = convertClaudeToAntigravityContent(input, true);
+      assert.ok(
+        result.includes('~/.gemini/antigravity'),
+        `Expected ~/.gemini/antigravity in output, got: ${result}`
+      );
+      assert.ok(
+        !result.includes('~/.claude'),
+        `Expected ~/ .claude to be replaced, got: ${result}`
+      );
+    });
+
+    test('replaces $HOME/.claude (bare, no trailing slash) with $HOME/.gemini/antigravity', () => {
+      const input = 'export DIR=$HOME/.claude';
+      const result = convertClaudeToAntigravityContent(input, true);
+      assert.ok(
+        result.includes('$HOME/.gemini/antigravity'),
+        `Expected $HOME/.gemini/antigravity in output, got: ${result}`
+      );
+      assert.ok(
+        !result.includes('$HOME/.claude'),
+        `Expected $HOME/.claude to be replaced, got: ${result}`
+      );
+    });
+
+    test('handles bare ~/.claude followed by comma (comment context)', () => {
+      const input = '# e.g. ~/.claude, ~/.config/opencode';
+      const result = convertClaudeToAntigravityContent(input, true);
+      assert.ok(
+        !result.includes('~/.claude'),
+        `Expected ~/ .claude to be replaced in comment context, got: ${result}`
+      );
+    });
+
+    test('still replaces ~/.claude/ (with trailing slash) correctly', () => {
+      const input = 'See ~/.claude/get-shit-done/workflows/';
+      const result = convertClaudeToAntigravityContent(input, true);
+      assert.ok(
+        result.includes('~/.gemini/antigravity/get-shit-done/workflows/'),
+        `Expected path with trailing slash to be replaced, got: ${result}`
+      );
+      assert.ok(!result.includes('~/.claude/'), `Expected ~/ .claude/ to be fully replaced, got: ${result}`);
+    });
+
+    test('does not double-replace ~/.claude/ paths', () => {
+      const input = 'See ~/.claude/get-shit-done/';
+      const result = convertClaudeToAntigravityContent(input, true);
+      // Result should contain exactly one occurrence of the replacement path
+      const count = (result.match(/~\/.gemini\/antigravity\//g) || []).length;
+      assert.strictEqual(count, 1, `Expected exactly 1 replacement, got ${count} in: ${result}`);
+    });
+  });
+
+  describe('local install', () => {
+    test('replaces ~/.claude (bare, no trailing slash) with .agent', () => {
+      const input = 'configDir = ~/.claude';
+      const result = convertClaudeToAntigravityContent(input, false);
+      assert.ok(
+        result.includes('.agent'),
+        `Expected .agent in output, got: ${result}`
+      );
+      assert.ok(
+        !result.includes('~/.claude'),
+        `Expected ~/ .claude to be replaced, got: ${result}`
+      );
+    });
+
+    test('replaces $HOME/.claude (bare, no trailing slash) with .agent', () => {
+      const input = 'export DIR=$HOME/.claude';
+      const result = convertClaudeToAntigravityContent(input, false);
+      assert.ok(
+        result.includes('.agent'),
+        `Expected .agent in output, got: ${result}`
+      );
+      assert.ok(
+        !result.includes('$HOME/.claude'),
+        `Expected $HOME/.claude to be replaced, got: ${result}`
+      );
+    });
+
+    test('does not double-replace ~/.claude/ paths', () => {
+      const input = 'See ~/.claude/get-shit-done/';
+      const result = convertClaudeToAntigravityContent(input, false);
+      // .agent/ should appear exactly once
+      const count = (result.match(/\.agent\//g) || []).length;
+      assert.strictEqual(count, 1, `Expected exactly 1 replacement, got ${count} in: ${result}`);
+    });
+  });
+
+  describe('installed files contain no bare ~/.claude references after conversion', () => {
+    const fs = require('fs');
+    const path = require('path');
+    const repoRoot = path.join(__dirname, '..');
+
+    // The scanner regex used by the installer to detect leaked paths
+    const leakedPathRegex = /(?:~|\$HOME)\/\.claude\b/g;
+
+    function convertFile(filePath, isGlobal) {
+      const content = fs.readFileSync(filePath, 'utf8');
+      return convertClaudeToAntigravityContent(content, isGlobal);
+    }
+
+    test('gsd-debugger.md has no leaked ~/.claude after global Antigravity conversion', () => {
+      const debuggerPath = path.join(repoRoot, 'agents', 'gsd-debugger.md');
+      if (!fs.existsSync(debuggerPath)) return; // skip if file doesn't exist
+      const converted = convertFile(debuggerPath, true);
+      const matches = converted.match(leakedPathRegex);
+      assert.strictEqual(
+        matches, null,
+        `gsd-debugger.md still contains leaked .claude paths after Antigravity conversion: ${matches}`
+      );
+    });
+
+    test('update.md has no leaked ~/.claude after global Antigravity conversion', () => {
+      const updatePath = path.join(repoRoot, 'get-shit-done', 'workflows', 'update.md');
+      if (!fs.existsSync(updatePath)) return; // skip if file doesn't exist
+      const converted = convertFile(updatePath, true);
+      const matches = converted.match(leakedPathRegex);
+      assert.strictEqual(
+        matches, null,
+        `update.md still contains leaked .claude paths after Antigravity conversion: ${matches}`
+      );
+    });
+  });
+});
diff --git a/tests/bug-2419-project-researcher-agent.test.cjs b/tests/bug-2419-project-researcher-agent.test.cjs
new file mode 100644
index 00000000..0a0c0249
--- /dev/null
+++ b/tests/bug-2419-project-researcher-agent.test.cjs
@@ -0,0 +1,96 @@
+/**
+ * Bug #2419: gsd-project-researcher agent type not found
+ *
+ * When gsd-new-project spawns gsd-project-researcher subagents, it fails with
+ * "agent type not found" if the user has a local-only install (agents in
+ * .claude/agents/ of a different project, not the global ~/.claude/agents/).
+ *
+ * Fix: new-project.md and new-milestone.md must parse agents_installed from
+ * the init JSON and warn the user (rather than silently failing) when agents
+ * are missing.
+ */
+
+const { describe, test } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('fs');
+const path = require('path');
+
+const NEW_PROJECT_PATH = path.join(__dirname, '..', 'get-shit-done', 'workflows', 'new-project.md');
+const NEW_MILESTONE_PATH = path.join(__dirname, '..', 'get-shit-done', 'workflows', 'new-milestone.md');
+const AGENTS_DIR = path.join(__dirname, '..', 'agents');
+
+describe('gsd-project-researcher agent registration (#2419)', () => {
+  test('gsd-project-researcher.md exists in agents source dir', () => {
+    const agentFile = path.join(AGENTS_DIR, 'gsd-project-researcher.md');
+    assert.ok(
+      fs.existsSync(agentFile),
+      'agents/gsd-project-researcher.md must exist in the source agents directory'
+    );
+  });
+
+  test('gsd-project-researcher.md has correct name in frontmatter', () => {
+    const content = fs.readFileSync(path.join(AGENTS_DIR, 'gsd-project-researcher.md'), 'utf-8');
+    assert.ok(
+      content.includes('name: gsd-project-researcher'),
+      'agents/gsd-project-researcher.md must have name: gsd-project-researcher in frontmatter'
+    );
+  });
+
+  test('new-project.md parses agents_installed from init JSON', () => {
+    const content = fs.readFileSync(NEW_PROJECT_PATH, 'utf-8');
+    assert.ok(
+      content.includes('agents_installed'),
+      'new-project.md must parse agents_installed from the init JSON to detect missing agents'
+    );
+  });
+
+  test('new-project.md warns user when agents_installed is false', () => {
+    const content = fs.readFileSync(NEW_PROJECT_PATH, 'utf-8');
+    assert.ok(
+      content.includes('agents_installed') && content.includes('agent type not found') ||
+      content.includes('agents_installed') && content.includes('missing') ||
+      content.includes('agents_installed') && content.includes('not installed'),
+      'new-project.md must warn the user when agents are not installed (agents_installed is false)'
+    );
+  });
+
+  test('new-milestone.md parses agents_installed from init JSON', () => {
+    const content = fs.readFileSync(NEW_MILESTONE_PATH, 'utf-8');
+    assert.ok(
+      content.includes('agents_installed'),
+      'new-milestone.md must parse agents_installed from the init JSON to detect missing agents'
+    );
+  });
+
+  test('new-milestone.md warns user when agents_installed is false', () => {
+    const content = fs.readFileSync(NEW_MILESTONE_PATH, 'utf-8');
+    assert.ok(
+      content.includes('agents_installed') && (
+        content.includes('agent type not found') ||
+        content.includes('missing') ||
+        content.includes('not installed')
+      ),
+      'new-milestone.md must warn the user when agents are not installed (agents_installed is false)'
+    );
+  });
+
+  test('new-project.md lists gsd-project-researcher in available_agent_types', () => {
+    const content = fs.readFileSync(NEW_PROJECT_PATH, 'utf-8');
+    const agentTypesMatch = content.match(/<available_agent_types>([\s\S]*?)<\/available_agent_types>/);
+    assert.ok(agentTypesMatch, 'new-project.md must have <available_agent_types> section');
+    assert.ok(
+      agentTypesMatch[1].includes('gsd-project-researcher'),
+      'new-project.md <available_agent_types> must list gsd-project-researcher'
+    );
+  });
+
+  test('new-milestone.md lists gsd-project-researcher in available_agent_types', () => {
+    const content = fs.readFileSync(NEW_MILESTONE_PATH, 'utf-8');
+    const agentTypesMatch = content.match(/<available_agent_types>([\s\S]*?)<\/available_agent_types>/);
+    assert.ok(agentTypesMatch, 'new-milestone.md must have <available_agent_types> section');
+    assert.ok(
+      agentTypesMatch[1].includes('gsd-project-researcher'),
+      'new-milestone.md <available_agent_types> must list gsd-project-researcher'
+    );
+  });
+});
diff --git a/tests/bug-2421-planner-grep-gate-hygiene.test.cjs b/tests/bug-2421-planner-grep-gate-hygiene.test.cjs
new file mode 100644
index 00000000..3de0f63e
--- /dev/null
+++ b/tests/bug-2421-planner-grep-gate-hygiene.test.cjs
@@ -0,0 +1,69 @@
+/**
+ * Bug #2421: gsd-planner emits grep-count acceptance gates that count comment text
+ *
+ * The planner must instruct agents to use comment-aware grep patterns in
+ * <automated> verify blocks. Without this, descriptive comments in file
+ * headers count against the gate and force authors to reword them — the
+ * "self-invalidating grep gate" anti-pattern.
+ */
+
+const { describe, test } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('fs');
+const path = require('path');
+
+const PLANNER_PATH = path.join(__dirname, '..', 'agents', 'gsd-planner.md');
+
+describe('gsd-planner grep gate hygiene (#2421)', () => {
+  test('gsd-planner.md exists in agents source dir', () => {
+    assert.ok(fs.existsSync(PLANNER_PATH), 'agents/gsd-planner.md must exist');
+  });
+
+  test('gsd-planner.md contains Grep gate hygiene rule', () => {
+    const content = fs.readFileSync(PLANNER_PATH, 'utf-8');
+    assert.ok(
+      content.includes('Grep gate hygiene') || content.includes('grep gate hygiene'),
+      'gsd-planner.md must contain a "Grep gate hygiene" rule to prevent self-invalidating grep gates'
+    );
+  });
+
+  test('gsd-planner.md explains self-invalidating grep gate anti-pattern', () => {
+    const content = fs.readFileSync(PLANNER_PATH, 'utf-8');
+    assert.ok(
+      content.includes('self-invalidating'),
+      'gsd-planner.md must describe the "self-invalidating" grep gate anti-pattern'
+    );
+  });
+
+  test('gsd-planner.md provides comment-stripping grep example', () => {
+    const content = fs.readFileSync(PLANNER_PATH, 'utf-8');
+    // Must show a pattern that excludes comment lines (grep -v or grep -vE)
+    assert.ok(
+      content.includes('grep -v') || content.includes('grep -vE') || content.includes('-v '),
+      'gsd-planner.md must provide a comment-stripping grep example (grep -v or grep -vE)'
+    );
+  });
+
+  test('gsd-planner.md warns against bare zero-count grep gates on whole files', () => {
+    const content = fs.readFileSync(PLANNER_PATH, 'utf-8');
+    assert.ok(
+      content.includes('== 0') || content.includes('zero-count') || content.includes('zero count'),
+      'gsd-planner.md must warn against bare zero-count grep gates without comment exclusion'
+    );
+  });
+
+  test('gsd-planner.md grep gate hygiene rule appears after Nyquist Rule', () => {
+    const content = fs.readFileSync(PLANNER_PATH, 'utf-8');
+    const nyquistIdx = content.indexOf('Nyquist Rule');
+    const grepGateIdx = content.indexOf('grep gate hygiene') !== -1
+      ? content.indexOf('grep gate hygiene')
+      : content.indexOf('Grep gate hygiene');
+
+    assert.ok(nyquistIdx !== -1, 'Nyquist Rule must be present in gsd-planner.md');
+    assert.ok(grepGateIdx !== -1, 'Grep gate hygiene must be present in gsd-planner.md');
+    assert.ok(
+      grepGateIdx > nyquistIdx,
+      `Grep gate hygiene rule (at ${grepGateIdx}) must appear after Nyquist Rule (at ${nyquistIdx})`
+    );
+  });
+});