File Factory

File Factory Skill

This skill describes how to create new React components, hooks, context providers, and Next.js pages in the Squareone monorepo using the @lsst-sqre/file-factory CLI tool. ALWAYS use this tool instead of manually creating new components/hooks/context providers/pages. It ensures consistent file structure, local barrel files, and CSS modules. After creation, the tool displays instructions for any manual steps needed (like updating root barrel files).

Tool Calling

Call from the monorepo root:

pnpm file-factory <type> <name> --package <package-name>

Package resolution supports multiple formats:

• Short names: squared, squareone (recommended)
• Full names: @lsst-sqre/squared
• Directory paths: apps/squareone, packages/squared

If there's a conflict between an app and package with the same short name, apps take priority.

Documentation for specific project types

Reference these pages for CLI command documentation:

• React components: components.md
• React hooks: hooks.md
• Global context providers: contexts.md
• Next.js pages: pages.md

Package-Specific Conventions

• For apps/squareone: squareone.md
• For packages/squared: squared.md

Important Notes

1. Always use the tool - Never manually create component directories
2. Component-scoped contexts - Use --with-context, not the context command
3. Global contexts - Use the context command for app-wide state
4. Post-creation messages - For squared package, follow the displayed instructions to add exports to root barrel files
5. Naming conventions:
   • Components: PascalCase (Button, DataTable)
   • Hooks: camelCase with use prefix (useDebounce)
   • Contexts: Input "Theme" → generates ThemeContext, ThemeProvider, useTheme

Example Workflows

Adding a component to squared (component library):

pnpm file-factory component Alert --package squared --with-story
# Creates: packages/squared/src/components/Alert/
# Displays instructions to add exports to src/components/index.ts and src/index.ts

Adding a complex component with state to squareone:

pnpm file-factory component Wizard --with-context --package squareone
# Creates: apps/squareone/src/components/Wizard/
# Includes: Wizard.tsx, WizardContext.tsx (with WizardProvider + useWizard)

Adding a global theme context to squareone:

pnpm file-factory context Theme --package squareone
# Creates: apps/squareone/src/contexts/ThemeContext/
# Use ThemeProvider in _app.tsx, useTheme() in components

Related Skills

After scaffolding files with file-factory, use these skills for implementation guidance:

• component-creation - TypeScript patterns, CSS Modules conventions, and implementation details for components
• squared-package - Architecture constraints for squared components (NO BUILD STEP, CSS Modules only)
• design-system - Complete CSS variable and design token reference for styling
• testing-infrastructure - Testing patterns for generated test files