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parser-development
Guide for implementing parsers with error recovery for new languages in Biome. Use when adding parsing support for a new language, implementing error recovery in a parser, or writing grammar definitions in .ungram format for JavaScript, CSS, JSON, HTML, GraphQL, or other languages.
maintainer
biomejs
Updated 3/6/2026
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quick start
Installation and usage
Guide for implementing parsers with error recovery for new languages in Biome. Use when adding parsing support for a new language, implementing error recovery in a parser, or writing grammar definitions in .ungram format for JavaScript, CSS, JSON, HTML, GraphQL, or other languages.
Installation
$ install --globalskills.sh
Usage
Once installed, you can use this skill by running the following command in your terminal:
skills use parser-development