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CodeLens — Unified Developer Telemetry Engine

Stop guessing. Start growing.
CodeLens aggregates your GitHub, LeetCode, and Codeforces data into a single AI-powered command center that tells you exactly what to learn next.

Table of Contents

Overview

CodeLens is a full-stack MERN (MongoDB, Express, React, Node.js) application that solves developer skill fragmentation. It unifies a developer's technical footprint across GitHub, LeetCode, and Codeforces into a single dashboard and uses Google Gemini AI to synthesize an actionable, personalized learning roadmap.

The platform operates through three core phases:

  1. Aggregation — Normalizes streaming APIs from GitHub, LeetCode, and Codeforces into a unified telemetry profile.
  2. AI Synthesis — Passes the normalized data to Google Gemini, which acts as a Staff Engineer cross-referencing algorithmic bottlenecks with commit history.
  3. Actionable Output — Generates a dynamic, milestone-based roadmap pinpointing the exact sequence of topics to master.

Problem Statement

The typical developer's technical growth is fragmented:

  • GitHub tracks code velocity, architectural complexity, and OSS collaboration.
  • LeetCode evaluates algorithmic prowess and data structure fluency.
  • Codeforces measures competitive agility and mathematical optimization.

Existing tools are single-dimensional and leave developers with:

  • Directional Paralysis — "What do I learn next?"
  • Inefficient Skill Building — Wasting time on mastered concepts while ignoring critical weaknesses.
  • Imposter Syndrome — Inability to accurately gauge capability against the broader engineering landscape.

CodeLens stops the guesswork. It dictates the optimal path to engineering supremacy.

Tech Stack

Frontend

Technology Version Purpose
React ^19.2.4 UI framework
React Router DOM ^7.13.2 Client-side routing
Tailwind CSS ^4.2.2 Utility-first styling
Axios ^1.14.0 HTTP client
Vite ^8.0.1 Build tool & dev server
ESLint ^9.39.4 Code linting

Backend

Technology Version Purpose
Node.js (ESM) — Runtime
Express ^5.2.1 Web framework
MongoDB / Mongoose ^9.3.3 Database & ODM
JSON Web Token (JWT) ^9.0.3 Authentication
bcryptjs ^3.0.3 Password hashing
Nodemailer ^8.0.4 Email/OTP service
Zod ^4.3.6 Request validation
@google/generative-ai ^0.24.1 Google Gemini AI integration
dotenv ^17.3.1 Environment management
cors ^2.8.6 Cross-origin resource sharing

Features

✅ Implemented

  • User Registration with email OTP verification
  • User Login with JWT-based authentication
  • Forgot Password via OTP email flow
  • Password Reset with OTP verification
  • OTP Resend with 60 second cooldown
  • Protected Routes — client-side route guards
  • Persistent Sessions — token stored in localStorage, re-validated on app load
  • Responsive Navbar — mobile hamburger menu + desktop navigation
  • User Profile management (get, update, delete)
  • Explore Page — 14-section informational landing showcasing platform features
  • Dashboard — "Command Center" with placeholder stats layout
  • Global Error Handling — centralized middleware for all error types
  • Input Validation — Zod schemas for all API endpoints
  • Structured Email Templates — styled HTML emails for OTP verification and password reset

🚧 Planned / Scaffolded (Modules Present, Logic Pending)

  • AI Module — Gemini-powered analysis and roadmap generation
  • CP Module — Codeforces & LeetCode data aggregation
  • GitHub Module — Repository and commit data fetching
  • Tasks Module — Personalized task/challenge tracking

Project Architecture

Directory Structure

CodeLens/
├── frontend/                        # React + Vite + Tailwind CSS
│   ├── public/                      # Static assets
│   ├── src/
│   │   ├── assets/                  # Images and SVGs
│   │   ├── components/
│   │   │   ├── ai/                  # AI insight components
│   │   │   ├── auth/                # Authentication components
│   │   │   ├── codeforces/          # Codeforces specific components
│   │   │   ├── explore/             # Explore page sections
│   │   │   ├── github/              # GitHub data visualization components
│   │   │   ├── shared/              # Reusable UI components
│   │   │   └── ui/                  # Generic UI components
│   │   ├── context/
│   │   │   └── AuthContext.jsx      # Global auth state (React Context)
│   │   ├── hooks/                   # Custom React hooks
│   │   ├── layouts/
│   │   │   └── MainLayout.jsx       # Navbar + Footer wrapper
│   │   ├── pages/                   # Application routes
│   │   │   ├── AccountCenterPage.jsx
│   │   │   ├── AlgoVersePage.jsx
│   │   │   ├── ApexAIPage.jsx
│   │   │   ├── CodeforcesPage.jsx
│   │   │   ├── ContestAtCoderPage.jsx
│   │   │   ├── ContestCodeChefPage.jsx
│   │   │   ├── ContestCodeforcesPage.jsx
│   │   │   ├── ContestLeetCodePage.jsx
│   │   │   ├── DashboardPage.jsx
│   │   │   ├── ExplorePage.jsx
│   │   │   ├── GitHubCallbackPage.jsx
│   │   │   ├── GitHubIntelligencePage.jsx
│   │   │   ├── LandingPage.jsx
│   │   │   ├── LoginPage.jsx
│   │   │   ├── NotFoundPage.jsx
│   │   │   ├── PracticePage.jsx
│   │   │   ├── PrivacyPage.jsx
│   │   │   ├── SignupPage.jsx
│   │   │   └── TermsPage.jsx
│   │   ├── services/                # API integration
│   │   │   ├── api.js               # Axios instance with interceptors
│   │   │   ├── authService.js
│   │   │   ├── codeforcesService.js
│   │   │   ├── githubService.js
│   │   │   └── userService.js
│   │   ├── App.jsx                  # Root component + routing
│   │   ├── index.css                # Global styles
│   │   └── main.jsx                 # React DOM entry point
│   ├── index.html                   # HTML entry point
│   ├── package.json
│   └── vite.config.js
│
└── server/                          # Node.js + Express (ESM)
    ├── config/
    │   ├── db.js                    # MongoDB connection
    │   ├── env.js                   # Environment variable validation
    │   ├── gemini.js                # Gemini AI client
    │   └── nvidia.js                # Nvidia NIM / AI integrations
    ├── middlewares/
    │   ├── authMiddleware.js        # JWT verification middleware
    │   └── errorHandler.js          # Global error handler
    ├── models/
    │   ├── CodeforcesProfile.js
    │   ├── CodeforcesRatingHistory.js
    │   ├── CodeforcesSubmission.js
    │   ├── Otp.js                   # OTP schema (10-min TTL)
    │   └── User.js                  # User schema (full telemetry model)
    ├── modules/
    │   ├── ai/                      # AI integration module
    │   ├── auth/                    # Authentication module
    │   ├── codeforces/              # Codeforces stats and synchronization
    │   ├── cp/                      # Competitive programming module
    │   ├── github/                  # GitHub telemetry module
    │   ├── tasks/                   # Task tracking module
    │   └── user/                    # User profile module
    ├── utils/
    │   ├── ApiError.js             # Custom error class
    │   ├── ApiResponse.js          # Standardized response class
    │   ├── codeforcesApi.js        # Codeforces API wrapper
    │   ├── emailService.js         # Nodemailer OTP email templates
    │   ├── otpHelper.js            # OTP generation utility
    │   └── tokenHelper.js          # JWT sign & verify utilities
    ├── app.js                       # Express app config (CORS, routes)
    ├── server.js                    # Entry point (DB connect + listen)
    └── package.json

Frontend Architecture

The frontend is a React 19 SPA built with Vite and styled exclusively using Tailwind CSS v4 (Brutalist design system — strict black/white/grayscale palette).

Routing is handled by React Router v7. Routes are protected by two guard components:

  • ProtectedRoute — redirects unauthenticated users to /login
  • PublicRoute — redirects already-authenticated users away from auth pages

Application Route Map:

/                      → LandingPage
/login                 → LoginPage (PublicRoute)
/signup                → SignupPage (PublicRoute)
/forgot-password       → ForgotPassword (PublicRoute)
/dashboard             → DashboardPage (ProtectedRoute)
/explore               → ExplorePage (public)
/terms                 → TermsPage (public)
/privacy               → PrivacyPage (public)
/account               → AccountCenterPage (ProtectedRoute)
/codeforces            → CodeforcesPage (ProtectedRoute)
/github                → GitHubIntelligencePage (ProtectedRoute)
/practice              → PracticePage (ProtectedRoute)

/apex                  → ApexAIPage (ProtectedRoute)
/algoverse             → AlgoVersePage (ProtectedRoute)
/contests/codeforces   → ContestCodeforcesPage (ProtectedRoute)
/contests/leetcode     → ContestLeetCodePage (ProtectedRoute)
/contests/codechef     → ContestCodeChefPage (ProtectedRoute)
/contests/atcoder      → ContestAtCoderPage (ProtectedRoute)
/auth/github/callback  → GitHubCallbackPage
/*                     → NotFoundPage

Layout: All pages are wrapped in MainLayout which renders <Navbar> at the top and <Footer> at the bottom with a flex-col min-h-screen structure.

State Management: A single AuthContext (React Context API) provides global authentication state: user, token, isAuthenticated, loading, login(), logout(). The context auto-validates the stored token against the /api/user/profile endpoint on every app load.

HTTP Layer: A centralized Axios instance (api.js) with:

  • Request interceptor: Automatically attaches Authorization: Bearer <token> to all outgoing requests.
  • Response interceptor: On receiving a 401, clears storage and redirects to /login.

Backend Architecture

The backend follows a strict feature-based modular architecture using ESM (import/export). Each feature module has exactly five files separating concerns:

module/
  ├── routes.js      — Express router + validation middleware mounting
  ├── controller.js  — Parses req/res, delegates to service, returns ApiResponse
  ├── service.js     — Core business logic, orchestration, third-party calls
  ├── repository.js  — All database queries (Mongoose layer)
  └── validation.js  — Zod schemas + validate() middleware factory

Request Lifecycle:

Request → CORS → express.json() → Route → Zod Validation → Auth Middleware (if protected) → Controller → Service → Repository → MongoDB
                                                                                                    ↓ (any error)
                                                                                              Global Error Handler

API Reference

Auth Endpoints

Base path: /api/auth

Method Endpoint Description Auth Required Body
POST /register Register new user, sends OTP No { name, email, password }
POST /verify-otp Verify signup OTP, returns JWT No { email, otp }
POST /login Login with credentials, returns JWT No { email, password }
POST /forgot-password Sends password reset OTP No { email }
POST /reset-password Resets password using OTP No { email, otp, newPassword }
POST /resend-otp Resend OTP for signup or password reset No { email, purpose }

OTP purpose values: "signup" | "forgot-password"

Example: Register

POST /api/auth/register
{
  "name": "Kunal Verma",
  "email": "kunal@example.com",
  "password": "securepass123"
}

Response 201:

{
  "success": true,
  "message": "Registration successful. Please check your email for OTP verification.",
  "data": { "id": "...", "name": "Kunal Verma", "email": "kunal@example.com", "isVerified": false }
}

Example: Login

POST /api/auth/login
{
  "email": "kunal@example.com",
  "password": "securepass123"
}

Response 200:

{
  "success": true,
  "message": "Login successful",
  "data": {
    "token": "<jwt>",
    "user": { "id": "...", "name": "Kunal Verma", "email": "...", "role": "user", "handles": {...} }
  }
}

User Endpoints

Base path: /api/user — All endpoints require Authorization: Bearer <token>

Method Endpoint Description Body
GET /profile Get current user's profile —
PUT /profile Update profile fields { name?, profile?, handles?, preferences? }
DELETE /profile Delete account permanently —

Example: Update Profile

PUT /api/user/profile
Authorization: Bearer <token>
{
  "handles": {
    "github": "kunalverma2512",
    "leetcode": "kunalverma",
    "codeforces": "kunalv"
  },
  "profile": {
    "bio": "Full-stack developer",
    "college": "BITS Pilani",
    "location": "India"
  }
}

Health Check

GET /api/health

Response: { "status": "ok", "message": "CodeLens API is running" }

Database Schema

User Model

Field Type Description
name String (required) Display name
email String (required, unique) Login identifier, lowercased
password String (select: false) bcrypt hashed, min 6 chars
role Enum: user | admin User role (default: user)
isVerified Boolean Email verified flag (default: false)
authProvider Enum: local | google | github Auth method
profile.avatar String Avatar URL
profile.bio String Short biography
profile.college String College/University
profile.location String Geographic location
profile.skills [{ name, level }] Skill list with beginner/intermediate/advanced level
handles.codeforces String Codeforces username
handles.leetcode String LeetCode username
handles.github String GitHub username
stats.cpStats ObjectId → CPStats Reference to CP stats (future)
stats.githubStats ObjectId → GithubStats Reference to GitHub stats (future)
stats.analytics ObjectId → Analytics Reference to analytics (future)
goals [{ title, type, target, progress, deadline }] User-defined goals
activity.lastActive Date Timestamp of last login
activity.streak.current Number Current coding streak (days)
activity.streak.longest Number Longest streak ever
preferences.theme Enum: light | dark UI theme preference
preferences.emailNotifications Boolean Email notifications toggle
security.resetPasswordToken String Token for password reset
security.resetPasswordExpiry Date Token expiry
metadata.onboardingCompleted Boolean First-time setup flag
metadata.tags [String] Arbitrary metadata tags
createdAt / updatedAt Date Mongoose timestamps

Otp Model

Field Type Description
email String (required) Recipient email, lowercased
otp String (required) bcrypt-hashed OTP string
purpose Enum: signup | forgot-password OTP use case
createdAt Date (TTL: 600s) Auto-expires after 10 minutes

Security Note: OTPs are stored as bcrypt hashes (cost factor 4 for speed). MongoDB TTL index auto-deletes records after 10 minutes. Old OTPs for the same email+purpose are deleted before creating a new one.

Frontend Pages & Components

Pages

Page Route Access Description
LandingPage / Public Hero landing (currently minimal wrapper)
LoginPage /login PublicRoute Email/password form, JWT login
SignupPage /signup PublicRoute Two-step form: registration → OTP verification with 60s resend cooldown
DashboardPage /dashboard ProtectedRoute Command Center with GitHub/LeetCode/CF stat cards + Gemini AI insight panel
ExplorePage /explore Public 14-section platform showcase page
PrivacyPage /privacy Public Privacy policy
TermsPage /terms Public Terms of service

SignupPage — Two-Step Flow

  1. Step 1: Collects name, email, password. On submit, calls POST /api/auth/register. Advances to Step 2.
  2. Step 2: Displays OTP input field. Calls POST /api/auth/verify-otp. On success, logs the user in and navigates to /dashboard. Features a 60-second resend cooldown managed by useEffect + setInterval.

Components

shared/ — Reusable Application Shell

Component Description
Navbar.jsx Sticky top nav. Responsive with hamburger menu on mobile. Shows Login/Signup for guests; Dashboard link + user avatar initial + Logout for authenticated users. Reads from AuthContext.
Footer.jsx Full-width footer with Platform links (Dashboard, Explore), Integrations (GitHub Sync, LeetCode Auth, Codeforces API), Legal links (Privacy, Terms), and social links.
ProtectedRoute.jsx Renders <Loader> while auth is initializing; redirects to /login if not authenticated.
PublicRoute.jsx Redirects authenticated users away from auth pages (to /dashboard).
Loader.jsx Full-screen loading spinner component.

auth/

Component Description
ForgotPassword.jsx Multi-step forgot password flow: email input → OTP verification → new password entry.

explore/ — 14 Modular Sections

Component Description
ExploreHero.jsx Full-width hero banner for the Explore page
AIExplanation.jsx Explains the Gemini AI synthesis engine
FeatureGrid.jsx Grid of platform features
PlatformSync.jsx Showcases GitHub, LeetCode, Codeforces sync
ArchitectureDeepDive.jsx Technical breakdown of the platform architecture
RoadmapVisualizer.jsx Visual representation of AI-generated learning roadmaps
DailyChallenge.jsx Daily problem challenge feature preview
Leaderboard.jsx Community leaderboard preview
Testimonials.jsx User testimonials section
DataPrivacy.jsx Data privacy and security commitment section
OpenSourceVision.jsx Open-source mission and community vision
FAQSection.jsx Frequently Asked Questions accordion
SubscribeNewsletter.jsx Newsletter subscription form
FinalCTA.jsx Final call-to-action to sign up

ui/

Component Description
Hero.jsx Generic hero component (used in the UI component library)

Services

api.js — Axios Instance

  • baseURL: set from VITE_API_BASE_URL env variable
  • Request interceptor: Reads token from localStorage and appends Authorization: Bearer <token> header.
  • Response interceptor: Catches 401 errors globally, clears localStorage, and redirects to /login.

authService.js

Wraps all POST /api/auth/* endpoints:

  • register(name, email, password)
  • verifyOtp(email, otp)
  • login(email, password)
  • forgotPassword(email)
  • resetPassword(email, otp, newPassword)
  • resendOtp(email, purpose)

userService.js

  • getProfile() → GET /api/user/profile
  • updateProfile(data) → PUT /api/user/profile

Context & State Management

AuthContext.jsx

Provides global auth state using React Context API.

State:

Value Type Description
user Object | null Current authenticated user object
token String | null JWT token from localStorage
isAuthenticated Boolean True if both token and user are set
loading Boolean True while initial auth check is in progress

Methods:

Method Description
login(token, userData) Stores token in localStorage, sets user/token state
logout() Clears localStorage and resets user/token to null

Initialization (useEffect): On mount, reads token from localStorage. If found, calls GET /api/user/profile to validate the token and populate the user object. If the request fails (token expired/invalid), clears all auth state.

Backend Modules

Auth Module

Path: server/modules/auth/

Implements complete email-based authentication:

File Responsibility
routes.js Mounts Zod validation middleware and delegates to controller methods
controller.js Extracts request body, calls AuthService, returns ApiResponse or forwards errors to global handler
service.js All business logic: hashing passwords/OTPs, generating tokens, orchestrating email sends
repository.js All Mongoose queries: create/find/update users, OTP CRUD
validation.js Zod schemas for all 6 auth endpoints + reusable validate() middleware factory

Auth Flow — Registration:

POST /register → validate(registerSchema) → AuthController.register
→ AuthService.register():
  1. Check if email already exists (throw 409 if so)
  2. Hash password with bcrypt (cost 10)
  3. Create user (isVerified: false)
  4. Generate 6-digit plain OTP
  5. Hash OTP (bcrypt cost 4)
  6. Store hashed OTP to MongoDB (TTL 10 min)
  7. Send styled HTML verification email
→ Return user object (201)

Auth Flow — OTP Verification:

POST /verify-otp → validate(verifyOtpSchema) → AuthController.verifyOtp
→ AuthService.verifyOtp():
  1. Find OTP record by email+purpose (throw 400 if not found)
  2. bcrypt.compare(plain, hashed) — throw 400 if mismatch
  3. Mark user isVerified: true
  4. Delete OTP record
  5. Generate JWT access token
→ Return { token, user } (200)

User Module

Path: server/modules/user/

Manages authenticated user profile operations.

Endpoint Method Description
GET /profile authMiddleware → getProfile Returns full user document
PUT /profile authMiddleware → validate → updateProfile Updates whitelisted fields only
DELETE /profile authMiddleware → deleteAccount Hard deletes user document

Whitelisted update fields: name, profile, handles, preferences

AI Module (Planned)

Path: server/modules/ai/
Folder scaffolded. Intended integration with @google/generative-ai to:

  • Accept normalized platform stats payload
  • Construct a prompt instructing Gemini to act as a Staff Engineer
  • Return a deterministic JSON roadmap
  • Config: server/config/gemini.js

CP Module (Planned)

Path: server/modules/cp/
Folder scaffolded. Intended to:

  • Fetch and store Codeforces rating, contest history, problem-solving stats
  • Fetch and store LeetCode solved problem counts by difficulty

GitHub Module (Planned)

Path: server/modules/github/
Folder scaffolded. Intended to:

  • Fetch GitHub commit history, repository count, contribution graph
  • Store aggregated stats linked to the User document

Tasks Module (Planned)

Path: server/modules/tasks/
Folder scaffolded. Intended to:

  • Store AI-generated task items and learning milestones
  • Track user task completion progress

Middleware & Utilities

authMiddleware.js

JWT authentication guard applied to all protected routes.

  1. Reads Authorization header, expects Bearer <token> format.
  2. Calls verifyToken(token) (wraps jwt.verify).
  3. Extracts userId from decoded payload.
  4. Fetches user from DB (excludes password).
  5. Attaches user to req.user for downstream handlers.
  6. Returns 401 on any failure without forwarding to global handler.

errorHandler.js

Centralized Express error-handling middleware (4-arg signature). Handles:

Error Type HTTP Status Handling
ApiError err.statusCode Passes through custom message
Mongoose ValidationError 400 Collects all field messages
Mongoose CastError 400 Invalid ObjectId format
Mongoose duplicate key (11000) 409 Extracts conflicting field name
JsonWebTokenError 401 "Invalid token"
TokenExpiredError 401 "Token expired"
Generic Error 500 err.message

In development mode, the stack trace is included in the response.

ApiError.js

Custom error class extending Error:

new ApiError(statusCode, message, isOperational?, stack?)

ApiResponse.js

Standardized response factory:

ApiResponse.success("message", data)  // { success: true, message, data }
ApiResponse.error("message", data)    // { success: false, message, data }

tokenHelper.js

generateAccessToken(payload)  // Signs JWT with JWT_SECRET + JWT_EXPIRES_IN
verifyToken(token)             // Verifies and decodes JWT

otpHelper.js

generateOTP()  // Returns a 6-digit numeric string OTP

Email Service

Path: server/utils/emailService.js

Uses Nodemailer with SMTP transport. Two styled HTML email templates:

sendVerificationOTP(email, otp)

  • Subject: "Verify Your CodeLens Account"
  • Purple gradient header (#667eea → #764ba2)
  • Displays the 6-digit OTP in large monospace font
  • Warning: expires in 10 minutes

sendPasswordResetOTP(email, otp)

  • Subject: "Reset Your CodeLens Password"
  • Red gradient header (#ff6b6b → #ee5a24)
  • Same OTP display format
  • Warning: expires in 10 minutes, security advisory not to share

Environment Variables

Backend (server/.env)

Variable Required Description
PORT ✅ Server port (e.g., 5000)
MONGO_URI ✅ MongoDB connection string
JWT_SECRET ✅ Secret key for JWT signing
JWT_EXPIRES_IN ✅ JWT expiry duration (e.g., 7d)
GEMINI_API_KEY ✅ Google Gemini API key
CLIENT_URL ✅ Frontend origin for CORS
NODE_ENV ✅ development | production
SMTP_HOST ✅ SMTP server hostname
SMTP_PORT ✅ SMTP server port (e.g., 587)
SMTP_USER ✅ SMTP sender email
SMTP_PASS ✅ SMTP sender password

Startup validation: config/env.js checks for all required variables at startup and throws immediately if any are missing.

Template (server/.env.example):

PORT=
MONGO_URI=

Frontend (frontend/.env)

Variable Description
VITE_API_BASE_URL Backend API base URL (e.g., http://localhost:5000/api)

Getting Started

Prerequisites

  • Node.js v18+ (recommend v20 LTS)
  • MongoDB (local instance or MongoDB Atlas)
  • npm v9+
  • SMTP credentials (Gmail, Mailtrap, or similar)
  • Google Gemini API key (from Google AI Studio)

Backend Setup

# 1. Navigate to the server directory
cd CodeLens/server

# 2. Install dependencies
npm install

# 3. Create environment file
cp .env.example .env
# Fill in all required variables in .env

# 4. Start the development server
node server.js

The API will be available at http://localhost:5000.

Health check:

curl http://localhost:5000/api/health
# → { "status": "ok", "message": "CodeLens API is running" }

Frontend Setup

# 1. Navigate to the frontend directory
cd CodeLens/frontend

# 2. Install dependencies
npm install

# 3. Create environment file
echo "VITE_API_BASE_URL=http://localhost:5000/api" > .env

# 4. Start the development server
npm run dev

The app will be available at http://localhost:5173.

Other commands:

npm run build    # Production build → dist/
npm run preview  # Preview production build
npm run lint     # ESLint check

Design System

CodeLens enforces a strict Brutalist design aesthetic across all UI:

Design Token Value
Colors Pure black (#000) and white (#fff) — no other colors
Border radius rounded-none — zero corner radius on all interactive elements
Border width border-4 (4px solid borders) — thick, assertive outlines
Typography font-black, uppercase, tracking-widest or tracking-tighter
Header scale text-5xl to text-9xl — dramatically large headings
Shadows Offset box shadows (shadow-[16px_16px_0_0_rgba(0,0,0,1)]) — no blurred shadows
Spacing Extremely generous padding (py-20, py-32)
Disabled states opacity-50 with grayscale fallbacks
Hover effects Color inversion (white bg → black, black bg → white) or underline with thick decoration-[3px]

Tailwind CSS version: v4 (via @tailwindcss/vite plugin).

Contributing

Please read CONTRIBUTING.md before submitting issues or PRs.

Quick Reference

Branch naming:

  • feat/feature-name — new features
  • fix/bug-description — bug fixes
  • chore/task-name — docs, dependencies, tooling

Frontend rules:

  • No rounded-* classes (except rounded-none)
  • No colors outside black/white/grayscale
  • All headers must use font-black uppercase

Backend rules:

  • require() is strictly forbidden — use ESM import/export only
  • All local imports must include .js extension
  • Follow the Controller → Service → Repository pattern
  • All request bodies must have a Zod validation schema

PR checklist:

  • Code passes npm run lint
  • UI tested on mobile and desktop viewports
  • PR description maps solution to the original GitHub issue

License

This project uses the MIT License.

CodeLens — Stop the Guesswork. Dictate the Path.
Built with ❤️ for the developer community as part of GSSoC 2026.

About

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Resources

Readme

License

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