diff --git a/.changeset/33-model-profile-adaptive.md b/.changeset/33-model-profile-adaptive.md
new file mode 100644
index 000000000..6d9c5fe89
--- /dev/null
+++ b/.changeset/33-model-profile-adaptive.md
@@ -0,0 +1,5 @@
+---
+type: Fixed
+pr: 149
+---
+Added regression test for the `model_profile: adaptive` settings option so future changes cannot silently break adaptive-mode selection.
diff --git a/tests/bug-33-settings-model-profile-adaptive.test.cjs b/tests/bug-33-settings-model-profile-adaptive.test.cjs
new file mode 100644
index 000000000..e58279590
--- /dev/null
+++ b/tests/bug-33-settings-model-profile-adaptive.test.cjs
@@ -0,0 +1,151 @@
+'use strict';
+
+// allow-test-rule: source-text-is-the-product
+// The deployed settings.md IS the product — testing its text content tests the deployed contract.
+
+/**
+ * Regression test for issue #33
+ *
+ * model_profile UI shows 4 options, schema has 5 — `adaptive` missing from
+ * `settings.md` AskUserQuestion.
+ *
+ * The schema (sdk/shared/model-catalog.json `profiles` array) defines 5 valid
+ * model_profile values: quality, balanced, budget, adaptive, inherit. The
+ * settings.md AskUserQuestion block for model_profile originally listed only 4
+ * options (Quality, Balanced, Budget, Inherit) — `adaptive` was missing.
+ *
+ * Fix: the model_profile selection uses a two-question split. Q1 routes between
+ * Adaptive / Standard-tier / Inherit (3 options). Q2 (only when Q1 = Standard)
+ * asks Quality / Balanced / Budget. This keeps every individual options array
+ * within the AskUserQuestion 4-option cap while making all 5 profiles reachable.
+ *
+ * Fixes: #33
+ */
+
+const { describe, test, before } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+
+const REPO_ROOT = path.join(__dirname, '..');
+const SETTINGS_PATH = path.join(REPO_ROOT, 'get-shit-done', 'workflows', 'settings.md');
+const CATALOG_PATH = path.join(REPO_ROOT, 'sdk', 'shared', 'model-catalog.json');
+
+/**
+ * Collect every label: "..." value within a text block, lowercased.
+ */
+function extractOptionLabels(block) {
+  const re = /label:\s*"([^"]+)"/g;
+  const labels = [];
+  let m;
+  while ((m = re.exec(block)) !== null) {
+    labels.push(m[1].toLowerCase());
+  }
+  return labels;
+}
+
+describe('issue #33: model_profile schema and settings.md UI are in sync', () => {
+  let catalog;
+  let settingsContent;
+  let presentBlock;
+
+  before(() => {
+    catalog = JSON.parse(fs.readFileSync(CATALOG_PATH, 'utf-8'));
+    settingsContent = fs.readFileSync(SETTINGS_PATH, 'utf-8');
+    const presentMatch = settingsContent.match(/<step name="present_settings">[\s\S]*?<\/step>/);
+    assert.ok(presentMatch, 'settings.md must contain a present_settings step');
+    presentBlock = presentMatch[0];
+  });
+
+  // -- (a) Schema contract ---------------------------------------------------
+
+  test('schema includes the adaptive model_profile value', () => {
+    assert.ok(
+      Array.isArray(catalog.profiles),
+      'sdk/shared/model-catalog.json must have a "profiles" array'
+    );
+    assert.ok(
+      catalog.profiles.includes('adaptive'),
+      'model-catalog should include the adaptive profile. Got: [' + catalog.profiles.join(', ') + ']'
+    );
+  });
+
+  test('schema includes adaptive as a model_profile value', () => {
+    assert.ok(
+      catalog.profiles.includes('adaptive'),
+      '"adaptive" must be in sdk/shared/model-catalog.json profiles. Got: [' + catalog.profiles.join(', ') + ']'
+    );
+  });
+
+  test('schema includes all expected model_profile values', () => {
+    const expected = ['quality', 'balanced', 'budget', 'adaptive', 'inherit'];
+    for (const profile of expected) {
+      assert.ok(
+        catalog.profiles.includes(profile),
+        'Schema must include "' + profile + '" in profiles. Got: [' + catalog.profiles.join(', ') + ']'
+      );
+    }
+  });
+
+  // -- (b) UI contract — all 5 profiles reachable via present_settings -------
+
+  test('present_settings includes Adaptive as a selectable option (#33)', () => {
+    const labels = extractOptionLabels(presentBlock);
+    assert.ok(
+      labels.some(l => l === 'adaptive' || l.startsWith('adaptive')),
+      'Issue #33: present_settings must include an "Adaptive" label in its model_profile AskUserQuestion options so users can select it interactively. Got labels: [' + labels.join(', ') + ']'
+    );
+  });
+
+  test('present_settings includes Quality as a selectable option', () => {
+    const labels = extractOptionLabels(presentBlock);
+    assert.ok(
+      labels.some(l => l === 'quality' || l.startsWith('quality')),
+      'present_settings must include a "Quality" option. Got: [' + labels.join(', ') + ']'
+    );
+  });
+
+  test('present_settings includes Balanced as a selectable option', () => {
+    const labels = extractOptionLabels(presentBlock);
+    assert.ok(
+      labels.some(l => l === 'balanced' || l.startsWith('balanced')),
+      'present_settings must include a "Balanced" option. Got: [' + labels.join(', ') + ']'
+    );
+  });
+
+  test('present_settings includes Budget as a selectable option', () => {
+    const labels = extractOptionLabels(presentBlock);
+    assert.ok(
+      labels.some(l => l === 'budget' || l.startsWith('budget')),
+      'present_settings must include a "Budget" option. Got: [' + labels.join(', ') + ']'
+    );
+  });
+
+  test('present_settings includes Inherit as a selectable option', () => {
+    const labels = extractOptionLabels(presentBlock);
+    assert.ok(
+      labels.some(l => l === 'inherit' || l.startsWith('inherit')),
+      'present_settings must include an "Inherit" option. Got: [' + labels.join(', ') + ']'
+    );
+  });
+
+  // -- update_config and confirm steps reference adaptive --------------------
+
+  test('update_config step lists adaptive as a valid model_profile value', () => {
+    const m = settingsContent.match(/<step name="update_config">[\s\S]*?<\/step>/);
+    assert.ok(m, 'settings.md must have an update_config step');
+    assert.ok(
+      m[0].includes('adaptive'),
+      'update_config step must list "adaptive" as a valid model_profile value'
+    );
+  });
+
+  test('confirm step table shows adaptive as a possible model profile value', () => {
+    const m = settingsContent.match(/<step name="confirm">[\s\S]*?<\/step>/);
+    assert.ok(m, 'settings.md must have a confirm step');
+    assert.ok(
+      m[0].includes('adaptive'),
+      'confirm step must include "adaptive" in the Model Profile row'
+    );
+  });
+});