Narrow Any Scope

What it does

The narrow-any-scope skill refines the type of an any variable to a more specific type based on subsequent usage. This allows for gradual typing and avoids the pitfalls of using any excessively in TypeScript code. It essentially helps the AI agent understand and enforce stricter types as information about the variable becomes available.

When to use it

• When dealing with legacy JavaScript code that uses any liberally, and you want to incrementally add type safety.
• When receiving data from an external API where the exact structure isn't known upfront but can be inferred later.
• To improve code readability and maintainability by providing more precise type information as it becomes available.
• In situations where a variable might initially be of unknown type, but its usage clarifies its specific type.

Key capabilities

• Type narrowing from any to specific types.
• Gradual typing in TypeScript projects.
• Improved code clarity and maintainability.

Example prompts

• "Narrow the 'data' variable which is currently any to an object with properties name: string and age: number."
• "Refine the type of 'result' from any based on how it's used in the following lines of code."
• "Help me narrow down this any type to a more specific interface definition."

Tips & gotchas

This skill is most effective when accompanied by clear context about how the any variable will be used. Providing relevant code snippets or data structures can significantly improve the accuracy and usefulness of the narrowed type.