Use this skill when creating or modifying Biome's parsers. Covers grammar authoring with ungrammar, lexer implementation, error recovery strategies, and list parsing patterns.
For syntax only valid in certain contexts (e.g., strict mode):
Guide for implementing parsers with error recovery for new languages in Biome. Use when creating parsers for JavaScript, CSS, JSON, HTML, GraphQL, or adding new language support. Examples:<example>User needs to add parsing support for a new language</example><example>User wants to implement error recovery in parser</example><example>User is writing grammar definitions in .ungram format</example> Source: biomejs/biome.
Open your terminal or command line tool (Terminal, iTerm, Windows Terminal, etc.) Copy and run this command: npx skills add https://github.com/biomejs/biome --skill parser-development Once installed, the skill will be automatically configured in your AI coding environment and ready to use in Claude Code, Cursor, or OpenClaw