fix: address PR review comments

- Add error logging to CodexProvider auth check instead of silent failure
- Fix cachedAt timestamp to return actual cache time instead of request time
- Replace misleading hardcoded rate limit values (100) with sentinel value (-1)
- Fix unused parameter warning in codex routes

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

apps/server/src/providers/codex-provider.ts

@@ -21,6 +21,7 @@ import {
   extractTextFromContent,
   classifyError,
   getUserFriendlyErrorMessage,
+  createLogger,
 } from '@automaker/utils';
 import type {
   ExecuteOptions,
@@ -658,6 +659,8 @@ async function loadCodexInstructions(cwd: string, enabled: boolean): Promise<str
     .join('\n\n');
 }
 
+const logger = createLogger('CodexProvider');
+
 export class CodexProvider extends BaseProvider {
   getName(): string {
     return 'codex';
@@ -1045,7 +1048,7 @@ export class CodexProvider extends BaseProvider {
           return { authenticated: true, method: 'oauth' };
         }
       } catch (error) {
-        // Silent fail
+        logger.warn('Error running login status command during auth check:', error);
       }
     }
 

apps/server/src/routes/codex/index.ts

@@ -12,7 +12,7 @@ export function createCodexRoutes(
   const router = Router();
 
   // Get current usage (attempts to fetch from Codex CLI)
-  router.get('/usage', async (req: Request, res: Response) => {
+  router.get('/usage', async (_req: Request, res: Response) => {
     try {
       // Check if Codex CLI is available first
       const isAvailable = await usageService.isAvailable();
@@ -60,7 +60,7 @@ export function createCodexRoutes(
   router.get('/models', async (req: Request, res: Response) => {
     try {
       const forceRefresh = req.query.refresh === 'true';
-      const models = await modelCacheService.getModels(forceRefresh);
+      const { models, cachedAt } = await modelCacheService.getModelsWithMetadata(forceRefresh);
 
       if (models.length === 0) {
         res.status(503).json({
@@ -74,7 +74,7 @@ export function createCodexRoutes(
       res.json({
         success: true,
         models,
-        cachedAt: Date.now(),
+        cachedAt,
       });
     } catch (error) {
       logger.error('Error fetching models:', error);

apps/server/src/services/codex-model-cache-service.ts

@@ -86,6 +86,24 @@ export class CodexModelCacheService {
     return this.refreshModels();
   }
 
+  /**
+   * Get models with cache metadata
+   *
+   * @param forceRefresh - If true, bypass cache and fetch fresh data
+   * @returns Object containing models and cache timestamp
+   */
+  async getModelsWithMetadata(
+    forceRefresh = false
+  ): Promise<{ models: CodexModel[]; cachedAt: number }> {
+    const models = await this.getModels(forceRefresh);
+
+    // Try to get the actual cache timestamp
+    const cached = await this.loadFromCache();
+    const cachedAt = cached?.cachedAt ?? Date.now();
+
+    return { models, cachedAt };
+  }
+
   /**
    * Refresh models from app-server and update cache
    *

apps/server/src/services/codex-usage-service.ts

@@ -157,9 +157,9 @@ export class CodexUsageService {
       if (rateLimitsResult?.rateLimits?.primary) {
         const primary = rateLimitsResult.rateLimits.primary;
         result.rateLimits!.primary = {
-          limit: 100, // Not provided by API, using placeholder
+          limit: -1, // Not provided by API
-          used: primary.usedPercent,
+          used: -1, // Not provided by API
-          remaining: 100 - primary.usedPercent,
+          remaining: -1, // Not provided by API
           usedPercent: primary.usedPercent,
           windowDurationMins: primary.windowDurationMins,
           resetsAt: primary.resetsAt,
@@ -170,9 +170,9 @@ export class CodexUsageService {
       if (rateLimitsResult?.rateLimits?.secondary) {
         const secondary = rateLimitsResult.rateLimits.secondary;
         result.rateLimits!.secondary = {
-          limit: 100,
+          limit: -1, // Not provided by API
-          used: secondary.usedPercent,
+          used: -1, // Not provided by API
-          remaining: 100 - secondary.usedPercent,
+          remaining: -1, // Not provided by API
           usedPercent: secondary.usedPercent,
           windowDurationMins: secondary.windowDurationMins,
           resetsAt: secondary.resetsAt,