feat: transport resolved reasoning effort

tests/codex-config.test.cjs

@@ -133,6 +133,8 @@ describe('getCodexSkillAdapterHeader', () => {
     const result = getCodexSkillAdapterHeader('gsd-execute-phase');
     assert.ok(result.includes('spawn_agent'), 'maps to spawn_agent');
     assert.ok(result.includes('agent_type'), 'maps subagent_type to agent_type');
+    assert.ok(result.includes('reasoning_effort'), 'documents reasoning_effort transport');
+    assert.ok(result.includes('do not invent one-off effort literals'), 'keeps effort policy centralized');
     assert.ok(result.includes('fork_context'), 'documents fork_context default');
     assert.ok(result.includes('wait(ids)'), 'documents parallel wait pattern');
     assert.ok(result.includes('close_agent'), 'documents close_agent cleanup');

tests/commands.test.cjs

@@ -1117,6 +1117,21 @@ describe('resolve-model command', () => {
     assert.ok(output.model, 'should resolve a model');
   });
 
+  test('includes reasoning_effort when selected runtime supports it', () => {
+    fs.writeFileSync(path.join(tmpDir, '.planning', 'config.json'), JSON.stringify({
+      model_profile: 'balanced',
+      runtime: 'codex',
+      models: { planning: 'opus' },
+    }));
+    const result = runGsdTools('resolve-model gsd-planner', tmpDir);
+    assert.ok(result.success, `Command failed: ${result.error}`);
+
+    const output = JSON.parse(result.output);
+    assert.strictEqual(output.model, 'gpt-5.4');
+    assert.strictEqual(output.profile, 'balanced');
+    assert.strictEqual(output.reasoning_effort, 'xhigh');
+  });
+
   test('fails when no agent-type provided', () => {
     const result = runGsdTools('resolve-model', tmpDir);
     assert.ok(!result.success, 'should fail without agent-type');