Agent skill

Biome Gritql Plugins

by theexperiencecompany in theexperiencecompany/gaia

A skill your agent uses when creating custom lint rules in Biome via GritQL plugins, writing .grit files, or debugging why plugin diagnostics are not firing on violations.

Custom licenceAuto-check passedDevelopment

Install Biome Gritql Plugins

skills CLI
$ npx skills add theexperiencecompany/gaia --skill biome-gritql-plugins -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install theexperiencecompany/gaia biome-gritql-plugins --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/theexperiencecompany/gaia.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/biome-gritql-plugins .claude/skills/biome-gritql-plugins && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
biome-gritql-plugins
GitHub stars
308
Token cost
~1.6k tokens
SKILL.md length
369 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses when creating custom lint rules in Biome via GritQL plugins, writing .grit files, or debugging why plugin diagnostics are not firing on violations.

  • Creating custom lint rules in Biome via GritQL plugins
  • SKILL.md covers Overview, File Structure, .grit File Format and biome.json Registration, plus 4 more sections
  • Calls pnpm; reaches biomejs.dev
  • Writing .grit files

What it does

Biome Gritql Plugins is an agent skill from theexperiencecompany/gaia. Use when creating custom lint rules in Biome via GritQL plugins, writing .grit files, or debugging why plugin diagnostics are not firing on violations.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Linting and formatting and Debugging. The repository describes itself as: Your proactive personal AI assistant & companion for daily productivity 🌎.

When your agent uses it

  • Creating custom lint rules in Biome via GritQL plugins
  • Writing .grit files
  • Debugging why plugin diagnostics are not firing on violations

Example prompts

  • “/biome-gritql-plugins”

What it can do on your machine

Read from SKILL.md and the folder at commit 26424cb. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • pnpm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • biomejs.dev

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Biome Gritql Plugins loads about 1.6k tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 369 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~43
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 369 words (~1,580 tokens).

“Biome 2.x supports custom lint rules via GritQL .grit files. Rules use pattern matching against the AST. Several patterns look like they should work but silently don't — this skill documents what actually does.”

— opening of SKILL.md by theexperiencecompany, Custom licence
name
biome-gritql-plugins

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/biome-gritql-plugins of theexperiencecompany/gaia.

Open the folder on GitHubat commit 26424cb

Compare with similar skills

Biome Gritql Plugins next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Biome Gritql Plugins compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Biome Gritql Plugins this skilltheexperiencecompany/gaia308—~1.6kAutomated safety check: PassCustom licence
Adk Setupgoogle/adk-python22k—~993Automated safety check: NotesApache-2.0
Vscode MCP Architecturetjx666/vscode-mcp105—~1.5kAutomated safety check: PassCustom licence
Debugging And Error Recoveryskuramatata/my-pi-agent114—~777Automated safety check: PassNone
Authoring CI WorkflowsPostHog/posthog40k—~12kAutomated safety check: PassCustom licence
Fixsoftspark/ai-toolkit179—~1.1kAutomated safety check: NotesApache-2.0

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Categories

Questions about Biome Gritql Plugins

What does Biome Gritql Plugins do?

A skill your agent uses when creating custom lint rules in Biome via GritQL plugins, writing .grit files, or debugging why plugin diagnostics are not firing on violations. Biome Gritql Plugins is an agent skill from theexperiencecompany/gaia.grit files, or debugging why plugin diagnostics are not firing on violations.

When should I use Biome Gritql Plugins?

Biome Gritql Plugins fits situations like: creating custom lint rules in Biome via GritQL plugins; writing .grit files; debugging why plugin diagnostics are not firing on violations.

How do I install Biome Gritql Plugins in Claude Code?

Run `npx skills add theexperiencecompany/gaia --skill biome-gritql-plugins -a claude-code`. Or copy the skill folder (.agents/skills/biome-gritql-plugins in theexperiencecompany/gaia) into .claude/skills/biome-gritql-plugins in your project. Claude Code loads it when a task matches its description.

How do I install Biome Gritql Plugins in Codex?

Run `npx skills add theexperiencecompany/gaia --skill biome-gritql-plugins -a codex`. Or copy the skill folder (.agents/skills/biome-gritql-plugins in theexperiencecompany/gaia) into .agents/skills/biome-gritql-plugins in your project. Codex loads it when a task matches its description.

Can I use Biome Gritql Plugins in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add theexperiencecompany/gaia --skill biome-gritql-plugins -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/biome-gritql-plugins, .gemini/skills/biome-gritql-plugins, .github/skills/biome-gritql-plugins and .opencode/skills/biome-gritql-plugins in your project.

What does Biome Gritql Plugins need to run?

Going by SKILL.md and its folder, Biome Gritql Plugins needs the command-line tools its instructions call (pnpm).

Does Biome Gritql Plugins access the network?

SKILL.md names 1 domain. In commands or code: biomejs.dev; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Biome Gritql Plugins safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Biome Gritql Plugins use?

Biome Gritql Plugins has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Biome Gritql Plugins use?

About 1.6k tokens (SKILL.md is roughly 6.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Biome Gritql Plugins?

Skills that share tags, products or a category with Biome Gritql Plugins: Adk Setup (google/adk-python, 22k stars), Vscode MCP Architecture (tjx666/vscode-mcp, 105 stars), Debugging And Error Recovery (skuramatata/my-pi-agent, 114 stars) and Authoring CI Workflows (PostHog/posthog, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Biome Gritql Plugins?

theexperiencecompany (a GitHub organization) maintains it in theexperiencecompany/gaia, which has 308 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 10, 2026.

Source: theexperiencecompany/gaia on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.