TypeScript App quick guide

TypeScript is under development and not release ready. Follow the manual's development status and SDK prerequisites before starting or changing a TypeScript App.

The installed @libertas-ai/types index.d.ts owns exact runtime APIs. The TypeScript manual owns full language behavior; use the annotation inventory for every JSDoc tag.

What to load

• The TypeScript App rules card: every SDK, project, discovery, export, type-mapping, JSDoc, decorator-spelling, protocol, persistent data and string resource rule generated from the manual.
• The code organization card for module boundaries, explicit type exports and thin entry functions, with the manual's TypeScript layout.
• The shared cards for the meaning of what the decorators declare: App design, documentation, protocols and runtime and its feature cards, persistent data, calculations, validation rules, presentation, messages (LMF1), AI Import, data-type evolution and Matter.

Where the manual helps most

• Project configuration baseline: the strict tsconfig.json for a new ESM App.
• Enumerations and discriminated unions: the three enumeration forms and numeric first-field discriminators.
• Optional types: string with an empty Default versus ?, | null and | undefined.
• Formatted runtime text: libertasFormattedText with typed argument objects under the messages card.