CodeSlick Changelog¶

Detailed history of improvements, bug fixes, and feature enhancements.

2025-10-18 Session¶

Dashboard Metrics Fix (00:15)¶

Problem: Together.ai metrics showing zero in Operations Dashboard despite actual usage
Root Cause: /api/generate-fix endpoint was calling Together.ai API without tracking usage to Vercel KV
Solution: Added UsageTracker.track() calls to /api/generate-fix/route.ts (lines 146-185)
Tracks: Tokens (input/output), costs ($0.20/1M tokens), latency, success rate
Impact: Dashboard now shows accurate Together.ai usage from individual "Generate Fix" requests

Vercel Analytics Integration (00:45)¶

Added: Vercel Web Analytics and Speed Insights for performance monitoring
File Modified: src/app/layout.tsx - added <Analytics /> and <SpeedInsights /> components
Package Installed: @vercel/analytics and @vercel/speed-insights (combined package)
Features:
Automatic page view tracking
Core Web Vitals monitoring (LCP, FID, CLS)
Real-time visitor metrics
Geographic and device analytics

Dashboard Quick Links (00:45)¶

Added: External service links section in dashboard sidebar
File Modified: src/components/dashboard/Sidebar.tsx
Links Added:
Vercel Dashboard - Deployments & Analytics
PostHog Analytics - User Analytics
Together.ai Console - AI API Usage
GitHub Repository - Source Code
Features: Each link opens in new tab, professional design matching dashboard aesthetic

Removed: All emoji characters from src/components/HowToUse.tsx
Replaced With: Lucide React icon components for professional appearance
Replacements: ⚡ → Zap, 🔧 → Settings, ✨ → TrendingUp, ✅ → CheckCircle, 🤖 → Activity, 💡 → AlertTriangle
Result: Clean, professional modal with consistent icon styling

Build Fix (01:05)¶

Problem: Vercel deployment failing with webpack error "Identifier 'elapsed' has already been declared"
Root Cause: Duplicate const elapsed declaration in src/app/api/generate-fix/route.ts
Solution: Removed duplicate at line 197, kept line 147 for both tracking and logging
Result: Clean compilation, successful Vercel deployment

2025-10-16 Session¶

SQL Injection Template Fix¶

Problem: SQL injection "Generate Fix" was keeping vulnerable concatenation in query string
Root Cause: Regex patterns were not correctly handling SQL quotes (') inside Java strings (")
Solution: 5 new regex patterns to handle different quote combinations in src/lib/utils/security-fixer.ts (lines 283-325)
Result: Template now generates correct PreparedStatement code with clean ? placeholders
Impact: Users can trust the auto-fix to generate secure, production-ready code

2025-10-14 Session¶

Python Analyzer Enhancement¶

Mission: Achieve "over the top quality performance" for all analyzers

5 New Checks Added:

tempfile.mktemp() Security Check - MEDIUM severity
Detects insecure temporary file creation (race condition vulnerability)
Suggests tempfile.NamedTemporaryFile() or mkstemp()
import() Security Check - HIGH severity
Detects arbitrary dynamic module loading
Suggests importlib.import_module() with strict whitelist validation
Assignment in Conditional Check - Syntax error detection
Detects if x = 10: instead of if x == 10:
Allows := (walrus operator)
Invalid Escape Sequence Detection - Syntax error detection
Detects invalid backslash sequences like "C:\new\folder"
Suggests raw strings r"..." or proper escaping
CRITICAL FIX: Fixed regex compilation error
Improved Unclosed String Detection
Enhanced to properly count unescaped quotes
Avoids false positives from comments

Python Analyzer Now Has: 19 security checks + comprehensive syntax validation

2025-10-09 to 2025-10-10 Sessions¶

Security-First Pivot Implementation (BACKEND COMPLETE)¶

Enhanced all 52 security checks across JavaScript (17), Python (17), Java (18)
Implemented CVSS scoring system (0.0-10.0) with 4-tier severity classification
Created compliance mapping database (OWASP Top 10 2021, CWE, PCI-DSS)
Added attack vector descriptions with exploit examples for all vulnerabilities
Implemented before/after remediation code for all security issues
Real-world impact assessment for each vulnerability type
Exploit likelihood scoring (high/medium/low)

Java Analyzer Completion¶

Completed all 18 security checks with comprehensive data
Added LDAP injection, XPath injection, XXE detection
Enhanced insecure deserialization with ValidatingObjectInputStream recommendations
Weak cryptography detection (MD5/SHA-1, ECB mode, java.util.Random)
File upload validation, unsafe reflection detection
Compliance coverage: 8/9 OWASP Top 10 2021 categories (88%)

Security Infrastructure Created¶

src/lib/security/severity-scoring.ts: CVSS-based scoring engine
src/lib/security/compliance-mapping.ts: Comprehensive framework mapping database
src/components/AnalysisResults/EnhancedSecurityDisplay.tsx: Rich security vulnerability UI
Documentation: SECURITY_AUDIT.md, SECURITY_FIRST_PIVOT.md, SECURITY_ENHANCEMENT_PROGRESS.md, JAVA_ANALYZER_COMPLETE.md

Implemented dashboard-style card design across all analysis sections
Modern card styling: rounded-xl borders, shadow-sm, white backgrounds
Applied indigo color scheme (primary: indigo-600, backgrounds: gray-50)
Updated Monaco Editor: 450px height, rounded-lg borders, indigo focus ring
Reorganized UI layout: moved action buttons to unified action bar
Removed step indicators (Choose Language, Add Code, Get Results)
Added large prominent "Analyze Code" button below Monaco Editor
Implemented 4-card metric grid for Analysis Overview
Dashboard icons integration (TrendingUp, TrendingDown, Zap, CheckCircle, AlertTriangle)
Consistent responsive design: 1 column mobile → 2 columns tablet → 4 columns desktop

2025-10-11 Session¶

Hybrid Fix Architecture Implementation¶

Created pattern-based syntax fixer (src/lib/utils/pattern-fixer.ts)
Replaced /api/fix-all with instant pattern-based implementation
Fix All now completes in <100ms (vs 15-30 seconds with AI)
100% reliability - no AI hallucinations or code destruction
Supports: missing semicolons, closing parentheses/braces/brackets, unclosed strings, var→const
Individual "Generate Fix" buttons still use AI for complex issues
Successfully tested: 69-line file with 5 syntax errors + 19 security issues

2025-10-08 Sessions¶

Vercel Deployment Fixes¶

Fixed multiple TypeScript strict mode errors for production build
Excluded test-files directory from TypeScript compilation (intentional errors)
Fixed implicit any type errors in StaticAnalysisSection.tsx
Fixed missing function arguments in page.tsx
Successfully deployed to production after fixing all build errors

Dashboard Authentication Fix¶

Fixed dashboard showing "No data available" in production
Modified DashboardAuth to allow internal requests from same domain (referer check)
Dashboard frontend can now access metrics API without exposing API key
Maintains security for external API access (still requires IP whitelist or API key)
Production dashboard now displays metrics correctly

Translation & Localization¶

Completed full English translation of all UI components
Translated recommendations in /api/analyze/route.ts
Translated analyzer error messages (JavaScript, TypeScript, Python, Java)
Removed all Portuguese strings from production code
Application now fully English-only

Version Tracking System¶

Added version.json with Madrid timezone timestamps (YYYYMMDD.HH:MM format)
Created update-version.js script for automatic version updates
Footer displays current version with description tooltip
Helps track different test versions across development ports

AI Auto-Fix Improvements¶

Removed rate limiting from /api/generate-fix (unlimited individual fixes)
Improved error handling with detailed Together AI error messages
Added progress bar to Fix All modal
Added warnings about hardcoded secrets requiring manual fixes
Improved system prompts with explicit fix examples

JavaScript Analyzer Enhancements¶

Fixed quote detection to exclude comments (prevents false positives)
Added detection for .push() method on strings (common AI hallucination)
Improved balance checking for braces, parentheses, brackets

Operations Dashboard Implementation¶

Overview¶

The Operations Dashboard provides unified monitoring of all CodeSlick system metrics in a single interface. It tracks Together.ai API usage, Vercel deployments, and PostHog analytics with real-time updates and historical trend visualization.

Architecture¶

Security: Custom hybrid authentication (IP whitelist + API key) - zero external dependencies
Storage: Vercel KV (Redis) for metrics tracking with 90-day retention
Aggregation: Daily and monthly aggregates for performance optimization
Visualization: Recharts-based area charts for trend analysis
Auto-refresh: Metrics update every 5 minutes automatically

Tracked Metrics¶

Together.ai (via UsageTracker): - Total tokens (input + output) - Monthly costs (calculated: $0.20/1M tokens) - Average latency (response time) - Success rate (successful/total requests) - Historical trends (tokens, costs, requests, latency over 30 days)

Vercel: - Total deployments (last 30 days) - Successful deployments (READY state) - Failed deployments (ERROR state) - Recent deployment list with status

PostHog: - Daily Active Users (DAU) - Weekly Active Users (WAU) - Monthly Active Users (MAU) - Total code analyses performed

Setup Documentation¶

See DASHBOARD_SECURITY.md, VERCEL_KV_SETUP.md, and DASHBOARD_README.md for complete setup instructions.

Earlier Improvements¶

Authentication Removal¶

Removed Clerk authentication completely
Simplified Header component (no Sign In/Sign Up)
Deleted onboarding flow and user metadata API
Application now works without authentication

Monetization & Protection¶

IP-based rate limiting removed from fix endpoints (unlimited fixes)
User API key management UI for unlimited AI analysis
Rate limit bypass for users with their own API key

User Experience Enhancements¶

"How to Use" comprehensive help modal with features and tips
Unsupported language detection and friendly validation modal
Detects C++, C#, Go, Rust, PHP, Ruby with helpful feedback
Full internationalization (PT-BR and EN-US) - now English-only
Clean, minimal header design

Language Detection Improvements¶

Extended detection to 10+ programming languages
Accurate C++ vs Java differentiation
Friendly modal for unsupported languages with support request option

Core Features¶

Monaco Editor with real-time error highlighting and decorations
Enhanced TypeScript validation with type typo detection
Standards & References integration (ESLint, TypeScript, PEP)
Export reports in PDF, Markdown, and JSON formats
PostHog analytics integration (EU server)