feat(codex): add synced model and reasoning defaults

src/web/codex-launch-defaults.ts

@@ -0,0 +1,22 @@
+import type { CodexConfig } from '../types.js';
+import { SettingsUpdateSchema } from './schemas.js';
+import { readJsonConfig, SETTINGS_PATH } from './route-helpers.js';
+
+/** Resolve launch-only defaults without changing Codex's own configuration files. */
+export async function resolveCodexLaunchDefaults(
+  config: CodexConfig | undefined,
+  customEndpoint = false
+): Promise<CodexConfig | undefined> {
+  if (customEndpoint) return config;
+  const settings = await readJsonConfig<Record<string, unknown>>(SETTINGS_PATH, 'Codex launch defaults', {});
+  const model = SettingsUpdateSchema.shape.codexModel.safeParse(settings.codexModel);
+  const effort = SettingsUpdateSchema.shape.codexReasoningEffort.safeParse(settings.codexReasoningEffort);
+  const defaultModel = model.success ? model.data || undefined : undefined;
+  const defaultEffort = effort.success ? effort.data || undefined : undefined;
+  if (!defaultModel && !defaultEffort) return config;
+  return {
+    ...config,
+    model: config?.model ?? defaultModel,
+    reasoningEffort: config?.reasoningEffort ?? defaultEffort,
+  };
+}

src/web/public/i18n.js

@@ -45,6 +45,11 @@
   // Exact English-source translations. Technical names, command examples, model
   // names, keyboard chords, and user-authored content intentionally stay unchanged.
   const ZH_CN = Object.freeze({
+    'Default Codex model': 'Codex 默认模型',
+    'Default Codex reasoning effort': 'Codex 默认思考强度',
+    'Use Codex configuration': '使用 Codex 配置',
+    'Model ID for new Codex sessions. Leave empty to use Codex configuration.': '新 Codex 会话使用的模型 ID。留空时使用 Codex 配置。',
+    'Applies to new sessions; supported levels depend on the model and Codex version. Custom endpoints keep their own settings.': '应用于新会话；可用强度取决于模型和 Codex 版本。自定义端点保留自己的设置。',
     'Skip to terminal': '跳转到终端',
     'Go to main page': '返回主页',
     'Session tabs': '会话标签页',

src/web/public/index.html

@@ -2527,6 +2527,30 @@
               <div class="set-group" id="appSettingsCodexGroup">
                 <div class="set-group-head"><h4>Codex</h4><span class="set-scope">synced</span></div>
                 <div class="set-group-body">
+                  <div class="set-row" data-search="codex default model">
+                    <div class="set-row-text">
+                      <span class="set-row-label">Default Codex model</span>
+                      <span class="set-row-desc">Model ID for new Codex sessions. Leave empty to use Codex configuration.</span>
+                    </div>
+                    <input id="appSettingsCodexModel" class="set-input" type="text" maxlength="100" aria-label="Default Codex model" placeholder="Use Codex configuration" autocomplete="off" spellcheck="false">
+                  </div>
+                  <div class="set-row" data-search="codex default reasoning effort thinking">
+                    <div class="set-row-text">
+                      <span class="set-row-label">Default Codex reasoning effort</span>
+                      <span class="set-row-desc">Applies to new sessions; supported levels depend on the model and Codex version. Custom endpoints keep their own settings.</span>
+                    </div>
+                    <select id="appSettingsCodexReasoningEffort" class="set-select" aria-label="Default Codex reasoning effort">
+                      <option value="">Use Codex configuration</option>
+                      <option value="none">none</option>
+                      <option value="minimal">minimal</option>
+                      <option value="low">low</option>
+                      <option value="medium">medium</option>
+                      <option value="high">high</option>
+                      <option value="xhigh">xhigh</option>
+                      <option value="max">max</option>
+                      <option value="ultra">ultra</option>
+                    </select>
+                  </div>
                   <div class="set-row" data-search="codex bypass approvals sandbox">
                     <div class="set-row-text">
                       <span class="set-row-label">Bypass approvals and sandbox</span>

src/web/public/settings-ui.js

@@ -526,6 +526,8 @@ Object.assign(CodemanApp.prototype, {
       settings.codexDangerouslyBypassApprovals ?? false;
     document.getElementById('appSettingsCodexAnimations').checked =
       settings.codexAnimationsEnabled ?? false;
+    document.getElementById('appSettingsCodexModel').value = settings.codexModel ?? '';
+    document.getElementById('appSettingsCodexReasoningEffort').value = settings.codexReasoningEffort ?? '';
     this._applyCodexSettingsVisibility();
     // Claude Permissions settings
     document.getElementById('appSettingsAgentTeams').checked = settings.agentTeamsEnabled ?? false;
@@ -2534,6 +2536,8 @@ Object.assign(CodemanApp.prototype, {
       claudeMode: document.getElementById('appSettingsClaudeMode').value,
       allowedTools: document.getElementById('appSettingsAllowedTools').value.trim(),
       // Codex CLI settings
+      codexModel: document.getElementById('appSettingsCodexModel').value.trim(),
+      codexReasoningEffort: document.getElementById('appSettingsCodexReasoningEffort').value,
       codexDangerouslyBypassApprovals: document.getElementById('appSettingsCodexDangerouslyBypassApprovals').checked,
       codexAnimationsEnabled: document.getElementById('appSettingsCodexAnimations').checked,
       // Claude Permissions settings

src/web/routes/session-routes.ts

@@ -115,6 +115,7 @@ import { clampEnvOverridesForOwner } from '../../session-env-clamp.js';
 import { enabledClis, getCli } from '../../config/cli-registry/registry.js';
 import type { NewlineSequence } from '../../config/cli-registry/types.js';
 import { resolveCliLaunchError } from '../../utils/cli-launcher.js';
+import { resolveCodexLaunchDefaults } from '../codex-launch-defaults.js';
 import { legacyConfigForMode } from '../../session-cli-registry-bridge.js';
 import { isMultiUserMode } from '../../config/multiuser.js';
 import { AUTH_COOKIE_NAME } from '../middleware/auth.js';
@@ -1103,6 +1104,7 @@ export function registerSessionRoutes(
     const globalNice = await ctx.getGlobalNiceConfig();
     const modelConfig = await ctx.getModelConfig();
     const mode = body.mode || 'claude';
+    const launchCodexConfig = mode === 'codex' ? await resolveCodexLaunchDefaults(body.codexConfig) : body.codexConfig;
     // Where a model override comes from is a capability, and the three answers are
     // genuinely different mechanisms:
     //   'flag'                 — the CLI takes --model, so read the value the caller sent
@@ -1117,9 +1119,10 @@ export function registerSessionRoutes(
     const modelSource = getCli(mode)?.capabilities.model;
     const model =
       modelSource?.source === 'flag'
-        ? (legacyConfigForMode(mode, body as unknown as Record<string, unknown>)?.[modelSource.param ?? 'model'] as
-            | string
-            | undefined)
+        ? (legacyConfigForMode(mode, { ...body, codexConfig: launchCodexConfig } as unknown as Record<
+            string,
+            unknown
+          >)?.[modelSource.param ?? 'model'] as string | undefined)
         : modelSource?.source === 'claude-settings-file'
           ? body.model || modelConfig?.defaultModel || undefined
           : undefined;
@@ -1136,7 +1139,7 @@ export function registerSessionRoutes(
       deepSeekConfig: gatedDeepSeekConfig,
     } = await _clampExternalCliBypassForOwner(
       owner,
-      body.codexConfig,
+      launchCodexConfig,
       body.geminiConfig,
       body.antigravityConfig,
       body.piConfig,
@@ -3831,13 +3834,15 @@ export function registerSessionRoutes(
     // Apply global Nice priority config and model config from settings
     const niceConfig = await ctx.getGlobalNiceConfig();
     const qsModelConfig = await ctx.getModelConfig();
+    const qsLaunchCodexConfig =
+      mode === 'codex' && !remote ? await resolveCodexLaunchDefaults(codexConfig, !!customModel) : codexConfig;
     // See the create path for why this is a capability rather than a mode ladder.
     const qsModelSource = getCli(mode)?.capabilities.model;
     const qsModel =
       qsModelSource?.source === 'flag'
         ? (legacyConfigForMode(mode, {
             openCodeConfig,
-            codexConfig,
+            codexConfig: qsLaunchCodexConfig,
             geminiConfig,
             antigravityConfig,
             piConfig,
@@ -3859,7 +3864,7 @@ export function registerSessionRoutes(
       deepSeekConfig: qsGatedDeepSeekConfig,
     } = await _clampExternalCliBypassForOwner(
       owner,
-      codexConfig,
+      qsLaunchCodexConfig,
       geminiConfig,
       antigravityConfig,
       piConfig,

src/web/schemas.ts

@@ -1457,6 +1457,12 @@ export const SettingsUpdateSchema = z
     claudeMode: z.string().max(50).optional(),
     allowedTools: z.string().max(2000).optional(),
     // Codex CLI settings
+    codexModel: z
+      .string()
+      .max(100)
+      .regex(/^[a-zA-Z0-9._\-/]*$/)
+      .optional(),
+    codexReasoningEffort: z.enum(['', ...CODEX_REASONING_EFFORTS]).optional(),
     codexDangerouslyBypassApprovals: z.boolean().optional(),
     codexAnimationsEnabled: z.boolean().optional(),
     // Terminal history and retention