biomejs/biome

1

biome-developer General development best practices and common gotchas when working on Biome. Use for avoiding common mistakes, unders…

biomejs/biome

316

2

parser-development Use this skill when implementing or modifying Biome parser behavior, including `.ungram` grammars, lexers, token sour…

biomejs/biome

103

3

lint-rule-development Use this skill when creating or modifying Biome lint rules or assists, including analyzer queries, semantic bindings,…

biomejs/biome

97

4

formatter-development Use this skill whenever implementing or debugging Biome formatter behavior, IR composition, node rules, layout select…

biomejs/biome

96

5

testing-codegen Use this skill when selecting or running Biome test fixtures, quick tests, `insta` snapshot workflows, expectation co…

biomejs/biome

94

6

diagnostics-development Use this skill when designing or implementing Biome user-facing diagnostic presentation or APIs, including messages, …

biomejs/biome

85

7

type-inference Use this skill when working on Biome's Salsa-backed JavaScript and TypeScript inference, including type-aware lint ru…

biomejs/biome

85

8

prettier-compare Compares code formatting and formatting IR between Biome and Prettier to ensure that Biome's formatting is consistent…

biomejs/biome

73

9

rule-options Guide for implementing configurable options for lint rules and assists. Use when rules need user-configurable behavio…

biomejs/biome

34

10

eslint-migrate-options Use this skill when `biome migrate eslint` must preserve configurable ESLint rule options through source-option model…

biomejs/biome

30

11

changeset Use this skill when a Biome change may affect users and you must decide whether it needs a changeset, choose the rele…

biomejs/biome

25

12

pull-request Guide for creating proper pull requests for the Biome project. Use when opening a PR, writing a PR description, choos…

biomejs/biome

24

13

biome-code-review Use only for reviewing completed Biome PRs, branches, commit ranges, diffs, or working trees against business logic a…

biomejs/biome

11

14

doc-comments Use this skill whenever writing or editing Rust `//`, `///`, or `//!` comments in Biome, including comments added inc…

biomejs/biome

8

15

syntax-text-handling Use this skill when extracting or storing Biome AST/CST source text, working with any `SyntaxNode`, `SyntaxToken`, `T…

biomejs/biome

3