Imported from VassilisAntonakakis/Vikunja-custom-kepyetha (AGENTS.md). Install upstream with npx skills add VassilisAntonakakis/Vikunja-custom-kepyetha. Copyright stays with the author.

AGENT Instructions

Project Overview

Vikunja is a comprehensive todo and task management application with a Vue.js frontend and Go backend. It supports multiple project views (List, Kanban, Gantt, Table), team collaboration, file attachments, and extensive integrations.

The project consists of:

• pkg/ – Go code for the API service
• frontend/ – Vue.js based web client
• magefile.go – Mage build script providing tasks for development and release
• desktop/ – Electron wrapper application
• docs/ – Documentation website

Development Commands

Backend (Go)

• Build: mage build - Builds the Go binary
• Test Features: mage test:feature - Runs feature tests
• Test Web: mage test:web - Runs web tests
• You can run specific tests with mage test:filter <filter> where <filter> is a go test filter string.
• Lint: mage lint - Runs golangci-lint
• Lint Fix: mage lint:fix - Runs golangci-lint with auto-fix
• Generate Swagger Docs: mage generate:swagger-docs - Updates API documentation (Generally you won't need to run this unless the user tells you to. It is updated automatically in the CI workflow)
• Check Swagger: mage check:got-swag - Verifies swagger docs are up to date
• Generate Config: mage generate:config-yaml - Generate sample config from config-raw.json
• Clean: mage build:clean - Cleans build artifacts
• Format: mage fmt - Format Go code before committing

-Development helpers under the dev namespace:

• Migration: mage dev:make-migration <StructName> - Creates new database migration. If you omit <StructName>, the command will prompt for it.
• Event: mage dev:make-event - Create an event type
• Listener: mage dev:make-listener - Create an event listener
• Notification: mage dev:make-notification - Create a notification skeleton

Frontend (Vue.js)

Navigate to frontend/ directory:

• Dev Server: pnpm dev - Starts development server
• Build: pnpm build - Production build
• Build Dev: pnpm build:dev - Development build
• Lint: pnpm lint - ESLint check
• Lint Fix: pnpm lint:fix - ESLint with auto-fix
• Lint Styles: pnpm lint:styles - Stylelint check for CSS/SCSS
• Lint Styles Fix: pnpm lint:styles:fix - Stylelint with auto-fix
• Type Check: pnpm typecheck - Vue TypeScript checking
• Test Unit: pnpm test:unit - Vitest unit tests
• Test E2E: pnpm test:e2e - Cypress end-to-end tests
• Test E2E Dev: pnpm test:e2e-dev - Interactive Cypress testing

Pre-commit Checks

Always run both lint before committing:

# Backend
mage lint:fix

# Frontend  
cd frontend && pnpm lint:fix && pnpm lint:styles:fix

Fix any errors the lint commands report, then try comitting again.

You only need to run the lint for the backend when changing backend code, and the lint for the frontend only when changing frontend code. Similarly, only run style linting when modifying CSS/SCSS files or Vue component styles.

Architecture Overview

Backend Architecture (Go)

The Go backend follows a layered architecture with clear separation of concerns:

Core Layers:

• Models (pkg/models/) - Domain entities with business logic and CRUD operations
• Services (pkg/services/) - Business logic layer handling complex operations
• Routes (pkg/routes/) - HTTP API endpoints and routing configuration
• Web (pkg/web/) - Generic CRUD handlers and web framework abstractions

Key Patterns:

• Generic CRUD: Models implement CRUDable interface for standardized database operations
• Permissions System: Three-tier permissions (Read/Write/Admin) enforced across all operations
• Event-Driven: Event system for notifications, webhooks, and cross-cutting concerns
• Modular Design: Pluggable authentication, avatar providers, migration tools

Database:

• XORM ORM with support for MySQL, PostgreSQL, SQLite
• Migration system in pkg/migration/ with timestamped files
• Database sessions with automatic transaction handling

Authentication:

• Multi-provider: Local, LDAP, OpenID Connect
• JWT tokens for API access
• API tokens with scoped permissions
• TOTP/2FA support

Frontend Architecture (Vue.js)

Modern Vue 3 composition API application with TypeScript:

State Management:

• Pinia stores in src/stores/ for global state
• Composables in src/composables/ for reusable logic
• Component-level state with Vue 3 Composition API

Key Directories:

• src/components/ - Reusable Vue components organized by feature
• src/views/ - Page-level components and routing
• src/stores/ - Pinia state management
• src/services/ - API service layer matching backend models
• src/models/ - TypeScript interfaces matching backend models
• src/helpers/ - Utility functions and business logic

UI Framework:

• Bulma CSS framework with CSS variables for theming
• FontAwesome icons with tree-shaking
• TipTap rich text editor for task descriptions
• Custom component library in src/components/base/

Development Workflows

Adding New Features

Backend Changes:

1. Create/modify models in pkg/models/ with proper CRUD and Permissions interfaces as required
2. Add database migration if needed: mage dev:make-migration <StructName>
3. Create/update services in pkg/services/ for complex business logic
4. Add API routes in pkg/routes/api/v1/ following existing patterns
5. Update Swagger annotations

Frontend Changes:

1. Create TypeScript interfaces in src/modelTypes/ matching backend models
2. Add/update services in src/services/ for API communication
3. Create components in appropriate src/components/ subdirectories
4. Add views/pages in src/views/ with proper routing
5. Update Pinia stores if global state changes are needed

Database Changes

1. Run mage dev:make-migration <StructName>
2. Edit the generated migration file in pkg/migration/
3. Update corresponding model in pkg/models/
4. Update TypeScript interfaces in frontend src/modelTypes/

API Development

• All API endpoints follow RESTful conventions under /api/v1/
• Use generic web handlers in pkg/web/handler/ for standard CRUD operations
• Implement proper permissions checking using the Permissions interface
• Add Swagger annotations for automatic documentation generation

Testing

• Backend: Feature tests alongside source files, web tests in pkg/webtests/
• Frontend: Unit tests with Vitest, E2E tests with Cypress
• Always test both positive and negative authorization scenarios
• Use test fixtures in pkg/db/fixtures/ for consistent test data

Swagger API Documentation

Never touch the generated swagger api documentation under pkg/swagger/. These are automatically generated by CI after committing.

Commit Messages

Use the Conventional Commits style when committing changes (for example, feat: add foo or fix: correct bar). This repository uses these messages to generate changelogs.

Frontend Development Guidelines

The web client lives in frontend/ and uses Vue 3 + TypeScript. ESLint rules enforce: single quotes, trailing commas, no semicolons, tab indent, Vue , PascalCase component names, camelCase events. See frontend/eslint.config.js and frontend/.editorconfig and obey formatting rules outlined there.

Translations

When adding or changing functionality which touches user-facing messages, these need to be translated.

In the frontend, all translation strings live in frontend/src/i18n/lang. For the api (which mainly affects the localization of notifications), the strings live in pkg/i18n/lang.

You only need to adjust the en.json file with the source string. The actual translation happens elsewhere. After adjusting the source string, you need to call the respective translation library with the key. Both are similar, check the existing code to figure it out.

Key Files and Conventions

Configuration:

• config.yml.sample - Example configuration (generated from config-raw.json)
• Environment variables override config file settings
• Use pkg/config/ for configuration management

Code Style:

• Go: golangci-lint per .golangci.yml; use goimports; wrap errors with fmt.Errorf("...: %w", err); enforce permissions checks in models; never log secrets; do not edit generated pkg/swagger/*
• Vue: ESLint + TS; single quotes, trailing commas, no semicolons, tab indent; script setup + lang ts; keep services/models in sync with backend
• Follow existing patterns for consistency

Naming Conventions:

• Go: Standard Go conventions (PascalCase for exports, camelCase for private)
• Vue: PascalCase for components, camelCase for composables
• API endpoints: kebab-case in URLs, camelCase in JSON

Permissions and Permissions:

• Always implement Permissions interface for new models
• Use CanRead, CanWrite, CanCreate, CanDelete methods
• Permissions are enforced at the model level, not just routes

Common Gotchas

• Database migrations are irreversible in production - test thoroughly
• Frontend services must match backend model structure exactly
• Permissions checking is mandatory for all CRUD operations
• Event listeners in pkg/*/listeners.go must be registered properly
• CORS settings in backend must allow frontend domain
• API tokens have different scopes - check permissions carefully