fyp/AGENTS.md

AGENTS.md - Convex Turbo Monorepo

For AI Agents Working in This Repo

Testing & Quality Checks:

• ALWAYS prefer bun typecheck over bun build when checking your work
  • Typecheck is faster and sufficient for validation
  • Build is for production deployment only and takes much longer

Scope Focus:

• Ignore apps/expo/ directory unless explicitly asked to work on it
  • Focus on Next.js app and backend for now
  • Expo setup is incomplete and will be addressed later

Backend Package Note:

• @gib/backend has no root tsconfig.json (only convex/tsconfig.json)
  • This is intentional - follows Convex's recommended structure
  • Running bun typecheck on backend will show TypeScript help output
  • This is expected behavior, not an error

Self-Hosted Setup:

• This project uses self-hosted Convex (not Convex cloud)
• Database runs on separate server via Docker
• See docker/ directory for deployment configuration

---

Quick Reference

Build/Lint/Test Commands

# Development
bun dev                      # Run all apps (Next.js + Expo + Backend)
bun dev:next                 # Run Next.js + Convex backend only
bun dev:expo                 # Run Expo + Convex backend only
bun dev:backend              # Run Convex backend only
bun dev:expo:tunnel          # Expo with tunnel for physical device

# Quality (PREFER typecheck over build for testing)
bun typecheck                # TypeScript checking (PREFERRED for validation)
bun lint                     # Lint all packages
bun lint:fix                 # Lint and auto-fix
bun format                   # Check formatting
bun format:fix               # Fix formatting

# Build (production only, slower)
bun build                    # Build all packages

# Single Package Commands (use Turborepo filters)
bun turbo run dev -F @gib/next           # Single app dev
bun turbo run lint -F @gib/backend       # Lint single package
bun turbo run typecheck -F @gib/ui       # Typecheck single package

# Cleanup
bun clean                    # Clean all node_modules (git clean)
bun clean:ws                 # Clean workspace caches

---

Project Structure

convex-monorepo/
├── apps/
│   ├── next/           # Next.js 16.0.0 web app (@gib/next)
│   └── expo/           # Expo 54 mobile app (@gib/expo) [IGNORE FOR NOW]
├── packages/
│   ├── backend/        # Convex backend (@gib/backend)
│   │   ├── convex/     # Convex functions, schema, auth (synced to cloud)
│   │   ├── scripts/    # Build utilities (e.g., key generation)
│   │   └── types/      # Shared type definitions
│   └── ui/             # Shared shadcn/ui components (@gib/ui)
├── tools/
│   ├── eslint/         # @gib/eslint-config
│   ├── prettier/       # @gib/prettier-config
│   ├── tailwind/       # @gib/tailwind-config
│   └── typescript/     # @gib/tsconfig
├── docker/             # Self-hosted Convex deployment
└── .env                # Central environment variables

Note: Only packages/backend/convex/ is synced to Convex cloud. Other directories (scripts/, types/) are kept separate to avoid sync issues.

---

Dependency Management

Catalogs (Single Source of Truth)

All shared dependencies are defined in root package.json catalogs:

"catalog": {
  "prettier": "^3.6.2",
  "typescript": "^5.9.3",
  "eslint": "^9.38.0",
  "zod": "^4.1.12"
},
"catalogs": {
  "convex": { "convex": "^1.28.0", "@convex-dev/auth": "^0.0.81" },
  "react19": { "react": "19.1.4", "react-dom": "19.1.4" }
}

Using Catalogs in Packages

"dependencies": {
  "convex": "catalog:convex",
  "react": "catalog:react19",
  "typescript": "catalog:",
  "zod": "catalog:"
},
"devDependencies": {
  "@gib/eslint-config": "workspace:*",
  "@gib/ui": "workspace:*"
}

Updating Dependencies

IMPORTANT: Do NOT use bun update directly - it may replace catalog: with hard-coded versions.

# Correct workflow:
1. Edit version in root package.json catalog section
2. Run: bun install
3. Verify with: bun lint:ws (runs sherif)

---

Code Style Guidelines

Imports (via @gib/prettier-config)

// Order: Types → React → Next/Expo → Third-party → @gib/* → Local
import type { Metadata } from 'next';
import { useState } from 'react';
import { useRouter } from 'next/navigation';
import { useMutation, useQuery } from 'convex/react';
import { ConvexError } from 'convex/values';

import type { Id } from '@gib/backend/convex/_generated/dataModel.js';
import { api } from '@gib/backend/convex/_generated/api.js'; // Note .js!

import { cn } from '@gib/ui';
import { Button } from '@gib/ui/button';

import type { User } from './types';
import { helper } from '../utils';

Convex Imports (.js Extensions)

IMPORTANT: Convex generated files require .js extensions due to ESM compatibility:

// ✅ Correct - with .js extension
import type { Id } from '@gib/backend/convex/_generated/dataModel.js';
// ❌ Wrong - will fail to import
import { api } from '@gib/backend/convex/_generated/api';
import { api } from '@gib/backend/convex/_generated/api.js';

Why? The project uses "type": "module" in package.json, requiring explicit file extensions for local module imports per ESM specification.

Files using this pattern:

• apps/next/src/app/(auth)/profile/page.tsx:12
• apps/next/src/components/layout/auth/profile/avatar-upload.tsx:10-11
• apps/next/src/components/layout/auth/profile/header.tsx:6
• apps/next/src/components/layout/auth/profile/reset-password.tsx:11
• apps/next/src/components/layout/auth/profile/user-info.tsx:11

TypeScript

• Strict mode enabled (noUncheckedIndexedAccess: true)
• Use type imports: import type { X } from 'y'
• Prefix unused vars with _: const _unused = ...
• Avoid any - use unknown with type guards

Naming Conventions

• Components: PascalCase (UserProfile.tsx)
• Functions/variables: camelCase
• Constants: SCREAMING_SNAKE_CASE
• Files: kebab-case.ts (except components)

Error Handling

// Convex functions - use ConvexError
import { ConvexError } from 'convex/values';

throw new ConvexError('User not found.');

// Client-side - handle gracefully
try {
  await updateUser({ name });
} catch (e) {
  if (e instanceof ConvexError) {
    toast.error(e.message);
  }
}

Formatting

• Single quotes, trailing commas
• 80 char line width, 2 space indent
• Tailwind classes sorted via prettier-plugin-tailwindcss
• Use cn() for conditional classes: cn('base', condition && 'active')

---

Environment Variables

Central .env (root)

All env vars in /.env. Apps load via with-env script:

"scripts": {
  "dev": "bun with-env next dev --turbo",
  "with-env": "dotenv -e ../../.env --"
}

Required Variables

# Convex Backend (Self-Hosted)
CONVEX_SELF_HOSTED_URL=https://api.convex.example.com
CONVEX_SELF_HOSTED_ADMIN_KEY=<generated via generateKeys.mjs>
CONVEX_SITE_URL=https://convex.example.com

# Next.js Public
NEXT_PUBLIC_CONVEX_URL=https://api.convex.example.com
NEXT_PUBLIC_SITE_URL=https://example.com
NEXT_PUBLIC_PLAUSIBLE_URL=https://plausible.example.com
NEXT_PUBLIC_SENTRY_DSN=
NEXT_PUBLIC_SENTRY_URL=
NEXT_PUBLIC_SENTRY_ORG=
NEXT_PUBLIC_SENTRY_PROJECT_NAME=

# Server-side
SENTRY_AUTH_TOKEN=

# Auth (sync to Convex deployment - see below)
AUTH_AUTHENTIK_ID=
AUTH_AUTHENTIK_SECRET=
AUTH_AUTHENTIK_ISSUER=
USESEND_API_KEY=

Syncing to Convex Deployment

Environment variables needed by backend functions must be synced to Convex:

# Via CLI (from packages/backend/)
bun with-env npx convex env set AUTH_AUTHENTIK_ID "value"
bun with-env npx convex env set AUTH_AUTHENTIK_SECRET "value"
bun with-env npx convex env set AUTH_AUTHENTIK_ISSUER "value"
bun with-env npx convex env set USESEND_API_KEY "value"
bun with-env npx convex env set CONVEX_SITE_URL "https://convex.example.com"

# Or via Convex Dashboard at your self-hosted URL

---

Convex Backend Patterns

Package Structure

packages/backend/
├── convex/              # Convex functions (synced to cloud)
│   ├── _generated/      # Auto-generated API/types
│   ├── custom/          # Custom auth providers
│   │   └── auth/
│   │       └── providers/
│   │           ├── password.ts
│   │           └── usesend.ts
│   ├── auth.config.ts   # Auth CORS configuration
│   ├── auth.ts          # Auth setup + user queries/mutations
│   ├── crons.ts         # Scheduled jobs
│   ├── files.ts         # File upload/storage utilities
│   ├── http.ts          # HTTP routes for auth
│   ├── schema.ts        # Database schema
│   ├── utils.ts         # Helper functions
│   └── tsconfig.json    # Convex-specific TypeScript config
├── scripts/             # Build scripts (outside convex/)
│   └── generateKeys.mjs # JWT key generation for auth
└── types/               # Shared type exports (outside convex/)
    ├── auth.ts          # Password validation constants
    └── index.ts

Note: Only convex/ directory is synced to Convex cloud. Other directories (scripts/, types/) are kept separate to avoid sync issues with Convex deployment.

Schema (packages/backend/convex/schema.ts)

import { authTables } from '@convex-dev/auth/server';
import { defineSchema, defineTable } from 'convex/server';
import { v } from 'convex/values';

export default defineSchema({
  ...authTables,
  users: defineTable({
    name: v.optional(v.string()),
    image: v.optional(v.id('_storage')),
    email: v.optional(v.string()),
    emailVerificationTime: v.optional(v.number()),
    phone: v.optional(v.string()),
    phoneVerificationTime: v.optional(v.number()),
    isAnonymous: v.optional(v.boolean()),
  })
    .index('email', ['email'])
    .index('name', ['name'])
    .index('phone', ['phone']),

  profiles: defineTable({
    userId: v.id('users'),
    theme_preference: v.optional(v.string()),
  }).index('userId', ['userId']),
});

Queries & Mutations

import { getAuthUserId } from '@convex-dev/auth/server';
import { ConvexError, v } from 'convex/values';

import { mutation, query } from './_generated/server';

export const getUser = query({
  args: { userId: v.optional(v.id('users')) },
  handler: async (ctx, args) => {
    const userId = args.userId ?? (await getAuthUserId(ctx));
    if (!userId) throw new ConvexError('Not authenticated.');

    const user = await ctx.db.get(userId);
    if (!user) throw new ConvexError('User not found.');

    return user;
  },
});

export const updateUser = mutation({
  args: {
    name: v.optional(v.string()),
    email: v.optional(v.string()),
    image: v.optional(v.id('_storage')),
  },
  handler: async (ctx, args) => {
    const userId = await getAuthUserId(ctx);
    if (!userId) throw new ConvexError('Not authenticated.');

    await ctx.db.patch(userId, args);
  },
});

Auth Setup

import { Authentik } from '@convex-dev/auth/providers/authentik';
import { convexAuth } from '@convex-dev/auth/server';

import { Password } from './custom/auth/providers/password';

export const { auth, signIn, signOut, store, isAuthenticated } = convexAuth({
  providers: [Authentik({ allowDangerousEmailAccountLinking: true }), Password],
});

Providers:

1. Authentik - OAuth SSO provider
2. Password - Custom password auth with email OTP verification via UseSend

---

Next.js Patterns

Convex Provider Setup (Dual-Layer)

Root Layout (app/layout.tsx):

import { ConvexAuthNextjsServerProvider } from '@convex-dev/auth/nextjs/server';

export default function RootLayout({ children }) {
  return (
    <ConvexAuthNextjsServerProvider>
      <html lang="en">
        <body>
          <ConvexClientProvider>{children}</ConvexClientProvider>
        </body>
      </html>
    </ConvexAuthNextjsServerProvider>
  );
}

Client Provider (components/providers/ConvexClientProvider.tsx):

'use client';

import { ConvexAuthNextjsProvider } from '@convex-dev/auth/nextjs';
import { ConvexReactClient } from 'convex/react';

const convex = new ConvexReactClient(process.env.NEXT_PUBLIC_CONVEX_URL!);

export function ConvexClientProvider({ children }) {
  return (
    <ConvexAuthNextjsProvider client={convex}>
      {children}
    </ConvexAuthNextjsProvider>
  );
}

Server Component Data Preloading

'use server';

import { ProfileComponent } from '@/components/profile';
import { preloadQuery } from 'convex/nextjs';

import { api } from '@gib/backend/convex/_generated/api.js';

const ProfilePage = async () => {
  const preloadedUser = await preloadQuery(api.auth.getUser);

  return <ProfileComponent preloadedUser={preloadedUser} />;
};

export default ProfilePage;

Client Component Hydration

'use client';

import type { Preloaded } from 'convex/react';
import { useMutation, usePreloadedQuery } from 'convex/react';

import type { api } from '@gib/backend/convex/_generated/api.js';

interface Props {
  preloadedUser: Preloaded<typeof api.auth.getUser>;
}

export function ProfileComponent({ preloadedUser }: Props) {
  const user = usePreloadedQuery(preloadedUser);
  const updateUser = useMutation(api.auth.updateUser);

  // ... interactive logic
}

Path Aliases

• @/* → ./src/* (Next.js)
• ~/* → ./src/* (Expo)

Middleware (Auth Protection)

import {
  convexAuthNextjsMiddleware,
  isAuthenticatedNextjs,
} from '@convex-dev/auth/nextjs/server';

export default convexAuthNextjsMiddleware(async (request, { convexAuth }) => {
  // Redirect authenticated users away from sign-in
  if (isSignInPage(request) && (await convexAuth.isAuthenticated())) {
    return nextjsMiddlewareRedirect(request, '/');
  }

  // Protect routes
  if (isProtectedRoute(request) && !(await convexAuth.isAuthenticated())) {
    return nextjsMiddlewareRedirect(request, '/sign-in');
  }
});

---

Expo Patterns [IGNORE FOR NOW]

NativeWind (Tailwind for RN)

import '../styles.css';

// Use className like web: <View className="flex-1 bg-background" />

Secure Storage for Auth

import * as SecureStore from 'expo-secure-store';

// Tokens stored via SecureStore, not AsyncStorage

---

Self-Hosted Deployment

This repo includes Docker configuration for self-hosted Convex deployment in docker/.

Services:

• convex-backend - Self-hosted Convex instance (port 3210)
• convex-dashboard - Admin dashboard (port 6791)
• next-app - Next.js application (standalone build)

Quick Start:

cd docker/
./generate_convex_admin_key  # Generate CONVEX_SELF_HOSTED_ADMIN_KEY
# Edit .env with your values
docker compose up -d

Network: Uses external nginx-bridge network by default. Change in compose.yml if needed.

See docker/compose.yml and docker/.env.example for full configuration details.

---

Known Issues / Cleanup Needed

Next.js App (apps/next/)

1. ✅ No @acme references - Successfully migrated to @gib namespace

2. ⚠️ TRPC in middleware matcher (src/middleware.ts:32)

   // Can safely remove 'trpc' from this line (unused pattern):
   matcher: ['/(api|trpc)(.*)'];
   

Expo App (apps/expo/) - IGNORE FOR NOW

3. ⚠️ @acme TRPC references (src/utils/api.tsx:1, line 49)

   • Imports AppRouter from @acme/api
   • Exports RouterInputs, RouterOutputs from @acme/api

4. ⚠️ @acme tailwind config (postcss.config.js:1)

   • Requires @acme/tailwind-config/postcss-config
   • Should be @gib/tailwind-config/postcss-config

5. ⚠️ Uses better-auth - Should migrate to @convex-dev/auth (future work)

Backend Package (packages/backend/)

6. ℹ️ No root tsconfig.json - This is intentional, not a bug

   • Only convex/tsconfig.json exists (Convex requirement)
   • Running bun typecheck shows TypeScript help message (expected)
   • scripts/ and types/ folders outside convex/ to avoid sync issues with Convex cloud

7. ⚠️ Hardcoded branding (convex/custom/auth/providers/usesend.ts:26)

   • Email templates reference "TechTracker" and "Study Buddy"
   • Should be parameterized or use generic branding

8. ⚠️ Password validation mismatch (convex/custom/auth/providers/password.ts)

   • types/auth.ts PASSWORD_REGEX requires special characters
   • validatePassword() function doesn't enforce special characters
   • Either update regex or update validation function

9. ⚠️ getAllUsers lacks auth (convex/auth.ts)

   • Public query accessible to anyone
   • Should require authentication or be internal-only

UI Package (packages/ui/)

10. ⚠️ Uses pnpm dlx (package.json:40)

    "ui-add": "pnpm dlx shadcn@latest add && prettier src --write --list-different"
    

    • Should use bunx shadcn@latest add instead
    • Keep prettier command as-is

---

Adding UI Components

bun ui-add              # Interactive shadcn/ui component addition

Note: Currently uses pnpm dlx internally (see Known Issues #10). Will be updated to use bunx.

---

Troubleshooting

Backend typecheck shows help message

Issue: Running bun typecheck from root shows TypeScript help for @gib/backend.

Explanation: This is expected. The backend package has no root tsconfig.json (only convex/tsconfig.json) following Convex's recommended structure.

Solution: No action needed. This is intentional behavior.

Imports from Convex fail without .js extension

Issue: TypeScript can't resolve @gib/backend/convex/_generated/api.

Solution: Add .js extension: @gib/backend/convex/_generated/api.js

Why: Project uses "type": "module" requiring explicit extensions for ESM.

Catalog updates break workspace

Issue: After updating dependencies, packages show version mismatches.

Solution:

1. Never use bun update directly
2. Edit version in root package.json catalog
3. Run bun install
4. Verify with bun lint:ws