Research: biome-developer
Cached research evidence for biome-developer (not authority).
Purpose
Section titled “Purpose”biome-developer supplies internal best practices and gotchas for contributors working on the Biome (formatter/linter) codebase itself. It covers AST navigation, string extraction without allocation, embedded language handling, clippy/style rules (no emojis, let chains, path imports), dev-dependency path usage, comment guidelines, testing via quick_test, and common API confusion tables. Marked as compatibility: “Designed for coding agents working on the Biome codebase (github.com/biomejs/biome).”
Harness Coverage
Section titled “Harness Coverage”Target agents: antigravity, claude-code, codex, crush, cursor, gemini-cli, github-copilot, grok, opencode. The skill is scoped to Biome-repo development tasks; it is not a general “use Biome” user skill.
Trust And Risks
Section titled “Trust And Risks”install-now-after-trust-gate / curated-trust-gated. Official content maintained inside the biomejs/biome repository (under .claude/skills). Low risk for its intended narrow use (Biome contributors). For general projects, the content may be irrelevant or overly prescriptive (e.g., the strict no-emoji policy). Treat as repo-specific conventions.
Install Prerequisites
Section titled “Install Prerequisites”npx skills add biomejs/biome --skill biome-developer -y -g -a antigravity claude-code codex crush cursor gemini-cli github-copilot grok opencode
Intended to be used while editing the Biome monorepo; requires familiarity with Rust, the parser/analyzer crates, and the project’s justfile test helpers.
Upstream Maintainer
Section titled “Upstream Maintainer”biomejs (https://github.com/biomejs/biome). Main site and docs: https://biomejs.dev/
Comparable Alternatives
Section titled “Comparable Alternatives”General Rust or web-tooling contributor guidelines; local project-specific AGENTS.md or CLAUDE.md files when not working inside the Biome repo.
> Evidence gathered from public GitHub (raw .claude/skills/biome-developer/SKILL.md and repo files). Not an endorsement or authority; this skill encodes Biome-project conventions only.