As Const Satisfies (Grade A) logo

As Const Satisfies (Grade A)Security-tested data-ai skill for Claude AI. Grade A. Use `as const` and `as const satisfies Type` for constant definitions in TypeScript. Use when defining constants, config objects, or string union

— (0)
Daniel NikulshynReviewed by Daniel Nikulshyn·Updated July 2026

Overview

As Const Satisfies is a skill for Claude AI that promotes the use of `as const` and `as const satisfies Type` for constant definitions in TypeScript. It's used for defining constants, config objects, or string union types. The skill emphasizes the benefits of using `as const` to maintain literal types and enable stricter type inference. It also explains when to use `as const satisfies Type` to combine the advantages of `as const` with type checking. The documentation provides guidelines on using these patterns, handling readonly types, and defining string union types.

Key features

  • Literal type preservation
  • Stricter type inference
  • Type checking with `as const satisfies Type`

Pricing

Model
Free
Category
Skills
Rating
No reviews yet

Use cases

Defining Constants

Use `as const` for defining constants to maintain literal types and enable stricter type inference.

Config Objects and String Union Types

Use `as const` and `as const satisfies Type` for defining config objects or string union types, ensuring type safety and flexibility.

Pros & Cons

Pros

  • Maintains literal types
  • Enables stricter type inference
  • Combines benefits of `as const` with type checking

Cons

  • Can be complex to use with mutable types
  • May require additional type definitions for readonly types

Reviews

Sign in to leave a review.

No reviews yet. Be the first!

Q&A

What are common pitfalls when applying `as const satisfies` to complex objects?

Complex objects may require deep readonly definitions; otherwise the readonly nature of `as const` can clash with mutable type expectations. Use utilities like `Readonly` or a custom `DeepReadonly` type to ensure the satisfied type matches the readonly constraints, especially for nested objects or arrays.

Asked by Faisal Rahman · Jun 7, 2026

Can `as const satisfies` be used with mutable structures like regular arrays?

`as const` makes arrays readonly, so it conflicts with mutable operations like `push`. To work with mutable arrays you must either avoid `as const` or define the target type as readonly (e.g., `readonly string[]`) and use `as const satisfies` with that readonly type.

Asked by Yosef Mizrahi · May 31, 2026

When should I use `as const` versus `as const satisfies Type` in my TypeScript code?

`as const` is ideal for simple constant definitions where you want to preserve literal types and get stricter inference. Use `as const satisfies Type` when you also need compile‑time type checking against a specific shape, combining literal preservation with validation against a defined type.

Asked by Ivana Novak · Mar 6, 2026

Ask a question

Skills alternatives

Using Git Worktrees (Grade A) logo
Using Git Worktrees (Grade A)Skills

Security-tested data-ai skill for Claude AI. Grade A. Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktre

— (0)
Free
Ga4 Bigquery Schema (Grade A) logo
Ga4 Bigquery Schema (Grade A)Skills

Security-tested data-ai skill for Claude AI. Grade A. GA4 BigQuery Export Schema Reference — complete field reference, nested structures, query patterns, and performance tips

— (0)
Free
Meta Capi (Grade A) logo
Meta Capi (Grade A)Skills

Security-tested data-ai skill for Claude AI. Grade A. Meta Conversions API (CAPI) Setup Reference — architecture, event types, customer information hashing, deduplication, implementation examples, AEM

— (0)
Free
Callees (Grade A) logo
Callees (Grade A)Skills

Security-tested development skill for Claude AI. Grade A. Lista o que uma funcao/metodo chama (call graph direto)

— (0)
Free
Test Module Name (Grade A) logo
Test Module Name (Grade A)Skills

Security-tested data-ai skill for Claude AI. Grade A. Name Haskell test modules after the module under test with a Spec suffix in the same namespace. Use when writing or reviewing Haskell test module

— (0)
Free
Board Of Directors (Grade A) logo
Board Of Directors (Grade A)Skills

Security-tested data-ai skill for Claude AI. Grade A. Simulate a 5-member expert board deliberation for major decisions. Use when evaluating plans, architecture choices, feature designs, or any decisi

— (0)
Free
Advpl Mvc Avancado (Grade A) logo
Advpl Mvc Avancado (Grade A)Skills

Security-tested development skill for Claude AI. Grade A. MVC avançado via PE (Pontos de Entrada) — adicionar grids customizadas em telas MVC padrão (CNTA300/MATA070/MATA440/MATA460/FINA040 via *STRU)

— (0)
Free
D
Docs Writer (Grade A)Skills

Security-tested devops skill for Claude AI. Grade A. **WORKFLOW SKILL** — Maintains repository documentation accuracy and freshness across the docs site, agent files, and changelog. WHEN: "update docs

— (0)
Free