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Improving TypeScript quality and type safety v1.0.0

Use this resource to improve the quality and type safety of TypeScript or JavaScript code

New

  • 515 downloads
  • 249 likes
  • 185 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install typescript-type-driven-refactoring

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent applies targeted techniques to your code: parsing data instead of validating it repeatedly, making invalid states impossible to represent, handling every case of a union, separating pure functions from I/O, and keeping the public API clean. It reads the reference matching the code at hand rather than applying everything blindly.

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Updated November 2, 2026

Card for the “Improving TypeScript quality and type safety” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

Similar resources

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What you get

  • references/parse-dont-validate.md and make-illegal-states-irrepresentable.md: principles and before-and-after examples
  • references/exhaustive-matching.md, pure-functions.md and public-api-quality.md: signals to look for
  • SKILL.md: when the skill applies and its guardrails

Good fit for

  • You refactor a TypeScript module that validates data in several places
  • A union type misses cases and the compiler does not flag it

Not for

    Tags

    • typescript
    • types
    • refactoring
    • quality

    About

    You say

    “Refactor this TypeScript module to parse inputs once instead of revalidating them everywhere.”

    Card for the “Improving TypeScript quality and type safety” skill

    Skill published by zernie under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to improve the quality and type safety of TypeScript or JavaScript code
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/exhaustive-matching.md2.1 KB
    • references/make-illegal-states-irrepresentable.md2.5 KB
    • references/parse-dont-validate.md2.2 KB
    • references/public-api-quality.md2.5 KB
    • references/pure-functions.md2 KB
    • SKILL.md4.2 KB

    Origin and licence

    Listed unmodified

    Author
    zernie
    Source
    github.com/zernie/vigiles/tree/3aa01f165c63f468df5f359d1862578354b3b937/.claude/skills/code-quality
    Licence
    MIT

    Notice

    « code-quality » (zernie, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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