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ESLint 9 flat config and Biome linting v1.0.0

Use this resource to set up project linting with ESLint 9 flat config or Biome

New

  • 549 downloads
  • 149 likes
  • 198 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install eslint-9-flat-config-setup

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 writes eslint.config.mjs with typescript-eslint, picks the presets and typed rules, and migrates the legacy configuration. It compares Biome and ESLint for your case. You get a complete lint setup, with an example you can adapt.

Mostly picked by

Updated November 2, 2026

Card for the “ESLint 9 flat config and Biome linting” skill

Details

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

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What you get

  • SKILL.md: ESLint 9 flat config and typescript-eslint presets
  • SKILL.md: typed rules and a full example
  • SKILL.md: Biome configuration and how to choose between the two

Good fit for

  • Your project is moving to ESLint 9 and the old .eslintrc no longer works
  • You are choosing between ESLint and Biome for a new repository

Not for

    Tags

    • eslint
    • linting
    • typescript
    • configuration

    About

    You say

    “Migrate my .eslintrc to eslint.config.mjs with typed typescript-eslint rules, and keep my React rules.”

    Card for the “ESLint 9 flat config and Biome linting” skill

    Skill published by claude-dev-suite 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 set up project linting with ESLint 9 flat config or Biome
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md10.5 KB

    Origin and licence

    Listed unmodified

    Author
    claude-dev-suite
    Source
    github.com/claude-dev-suite/claude-dev-suite/tree/e10ab644ba43abe2abc923399226df4af7337214/skills/quality/eslint-biome
    Licence
    MIT

    Notice

    « eslint-biome » (claude-dev-suite, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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