diff --git a/get-shit-done/bin/lib/phase.cjs b/get-shit-done/bin/lib/phase.cjs
index cfb9d3669..1d7c26a11 100644
--- a/get-shit-done/bin/lib/phase.cjs
+++ b/get-shit-done/bin/lib/phase.cjs
@@ -689,10 +689,12 @@ function cmdPhaseComplete(cwd, phaseNum, raw) {
       const cells = fullRow.split('|').slice(1, -1);
       if (cells.length === 5) {
         // 5-col: Phase | Milestone | Plans | Status | Completed
+        cells[2] = ` ${summaryCount}/${planCount} `;
         cells[3] = ' Complete    ';
         cells[4] = ` ${today} `;
       } else if (cells.length === 4) {
         // 4-col: Phase | Plans | Status | Completed
+        cells[1] = ` ${summaryCount}/${planCount} `;
         cells[2] = ' Complete    ';
         cells[3] = ` ${today} `;
       }
@@ -709,6 +711,18 @@ function cmdPhaseComplete(cwd, phaseNum, raw) {
       `$1${summaryCount}/${planCount} plans complete`
     );
 
+    // Mark completed plan checkboxes (safety net for missed per-plan updates)
+    for (const summaryFile of phaseInfo.summaries) {
+      const planId = summaryFile.replace('-SUMMARY.md', '').replace('SUMMARY.md', '');
+      if (!planId) continue;
+      const planEscaped = escapeRegex(planId);
+      const planCheckboxPattern = new RegExp(
+        `(-\\s*\\[) (\\]\\s*${planEscaped})`,
+        'i'
+      );
+      roadmapContent = roadmapContent.replace(planCheckboxPattern, '$1x$2');
+    }
+
     fs.writeFileSync(roadmapPath, roadmapContent, 'utf-8');
 
     // Update REQUIREMENTS.md traceability for this phase's requirements
diff --git a/tests/phase.test.cjs b/tests/phase.test.cjs
index bbc0c004e..1828db931 100644
--- a/tests/phase.test.cjs
+++ b/tests/phase.test.cjs
@@ -1533,6 +1533,130 @@ describe('phase complete command', () => {
     // Verify compound format preserved
     assert.ok(state.match(/Phase:.*of\s+1/), 'should preserve "of N" in compound Phase format');
   });
+
+  test('updates Plans Complete column in 4-column progress table', () => {
+    fs.writeFileSync(
+      path.join(tmpDir, '.planning', 'ROADMAP.md'),
+      `# Roadmap
+
+- [ ] Phase 1: Foundation
+- [ ] Phase 2: API
+
+### Phase 1: Foundation
+**Goal:** Setup
+**Plans:** 1 plans
+
+### Phase 2: API
+**Goal:** Build API
+
+## Progress
+
+| Phase | Plans Complete | Status | Completed |
+|-------|----------------|--------|-----------|
+| 1. Foundation | 0/1 | Not started | - |
+| 2. API | 0/1 | Not started | - |
+`
+    );
+    fs.writeFileSync(
+      path.join(tmpDir, '.planning', 'STATE.md'),
+      `# State\n\n**Current Phase:** 01\n**Status:** In progress\n**Current Plan:** 01-01\n**Last Activity:** 2025-01-01\n**Last Activity Description:** Working\n`
+    );
+
+    const p1 = path.join(tmpDir, '.planning', 'phases', '01-foundation');
+    fs.mkdirSync(p1, { recursive: true });
+    fs.writeFileSync(path.join(p1, '01-01-PLAN.md'), '# Plan');
+    fs.writeFileSync(path.join(p1, '01-01-SUMMARY.md'), '# Summary');
+    fs.mkdirSync(path.join(tmpDir, '.planning', 'phases', '02-api'), { recursive: true });
+
+    const result = runGsdTools('phase complete 1', tmpDir);
+    assert.ok(result.success, `Command failed: ${result.error}`);
+
+    const roadmap = fs.readFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), 'utf-8');
+    const rowMatch = roadmap.match(/^\|[^\n]*1\. Foundation[^\n]*$/m);
+    assert.ok(rowMatch, 'table row should exist');
+    const cells = rowMatch[0].split('|').slice(1, -1).map(c => c.trim());
+    assert.strictEqual(cells.length, 4, 'should have 4 columns');
+    assert.strictEqual(cells[1], '1/1', 'Plans Complete column should be updated to 1/1');
+    assert.ok(cells[2].includes('Complete'), 'Status column should be Complete');
+  });
+
+  test('updates Plans Complete column in 5-column progress table', () => {
+    fs.writeFileSync(
+      path.join(tmpDir, '.planning', 'ROADMAP.md'),
+      `# Roadmap
+
+- [ ] Phase 1: Foundation
+
+### Phase 1: Foundation
+**Goal:** Setup
+**Plans:** 1 plans
+
+## Progress
+
+| Phase | Milestone | Plans Complete | Status | Completed |
+|-------|-----------|----------------|--------|-----------|
+| 1. Foundation | v1.0 | 0/1 | Planned |  |
+`
+    );
+    fs.writeFileSync(
+      path.join(tmpDir, '.planning', 'STATE.md'),
+      `# State\n\n**Current Phase:** 01\n**Status:** In progress\n**Current Plan:** 01-01\n**Last Activity:** 2025-01-01\n**Last Activity Description:** Working\n`
+    );
+
+    const p1 = path.join(tmpDir, '.planning', 'phases', '01-foundation');
+    fs.mkdirSync(p1, { recursive: true });
+    fs.writeFileSync(path.join(p1, '01-01-PLAN.md'), '# Plan');
+    fs.writeFileSync(path.join(p1, '01-01-SUMMARY.md'), '# Summary');
+
+    const result = runGsdTools('phase complete 1', tmpDir);
+    assert.ok(result.success, `Command failed: ${result.error}`);
+
+    const roadmap = fs.readFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), 'utf-8');
+    const rowMatch = roadmap.match(/^\|[^\n]*1\. Foundation[^\n]*$/m);
+    assert.ok(rowMatch, 'table row should exist');
+    const cells = rowMatch[0].split('|').slice(1, -1).map(c => c.trim());
+    assert.strictEqual(cells.length, 5, 'should have 5 columns');
+    assert.strictEqual(cells[2], '1/1', 'Plans Complete column should be updated to 1/1');
+    assert.ok(cells[3].includes('Complete'), 'Status column should be Complete');
+  });
+
+  test('marks plan-level checkboxes on phase complete', () => {
+    fs.writeFileSync(
+      path.join(tmpDir, '.planning', 'ROADMAP.md'),
+      `# Roadmap
+
+- [ ] Phase 1: Foundation
+
+### Phase 1: Foundation
+**Goal:** Setup
+**Plans:** 2 plans
+
+Plans:
+- [ ] 01-01-PLAN.md \u2014 Schema migration
+- [ ] 01-02-PLAN.md \u2014 Auth setup
+`
+    );
+    fs.writeFileSync(
+      path.join(tmpDir, '.planning', 'STATE.md'),
+      `# State\n\n**Current Phase:** 01\n**Status:** In progress\n**Current Plan:** 01-02\n**Last Activity:** 2025-01-01\n**Last Activity Description:** Working\n`
+    );
+
+    const p1 = path.join(tmpDir, '.planning', 'phases', '01-foundation');
+    fs.mkdirSync(p1, { recursive: true });
+    fs.writeFileSync(path.join(p1, '01-01-PLAN.md'), '# Plan');
+    fs.writeFileSync(path.join(p1, '01-01-SUMMARY.md'), '# Summary');
+    fs.writeFileSync(path.join(p1, '01-02-PLAN.md'), '# Plan');
+    fs.writeFileSync(path.join(p1, '01-02-SUMMARY.md'), '# Summary');
+
+    const result = runGsdTools('phase complete 1', tmpDir);
+    assert.ok(result.success, `Command failed: ${result.error}`);
+
+    const roadmap = fs.readFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), 'utf-8');
+    assert.ok(roadmap.includes('[x] 01-01-PLAN.md'), 'plan 01-01 checkbox should be checked');
+    assert.ok(roadmap.includes('[x] 01-02-PLAN.md'), 'plan 01-02 checkbox should be checked');
+    assert.ok(!roadmap.includes('[ ] 01-01-PLAN.md'), 'plan 01-01 should not remain unchecked');
+    assert.ok(!roadmap.includes('[ ] 01-02-PLAN.md'), 'plan 01-02 should not remain unchecked');
+  });
 });
 
 // ─────────────────────────────────────────────────────────────────────────────