biome-gritql-plugins

biome-gritql-plugins is a skill for Claude Code, Codex from theexperiencecompany/gaia. It costs 40 tokens per session (1,613 once invoked), scanned A, original, no licence file.

Guidance for creating custom Biome lint rules with GritQL, a language for matching code patterns.

In plain words
What is it for?
It is for writing .grit files, creating Biome plugins, and diagnosing missing lint warnings.
Why use it?
It helps when a custom rule is difficult to write or its warnings do not appear when expected.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

Good fit It is for writing .grit files, creating Biome plugins, and diagnosing missing lint warnings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/theexperiencecompany/gaia/biome-gritql-plugins
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add theexperiencecompany/gaia --skill biome-gritql-plugins
Clone the repo
git clone --depth 1 https://github.com/theexperiencecompany/gaia

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for biome-gritql-plugins

README.md
[![agentmods](https://agentmods.dev/badge/skills/theexperiencecompany/gaia/biome-gritql-plugins/github.svg)](https://agentmods.dev/skills/theexperiencecompany/gaia/biome-gritql-plugins)
Your own site
<a href="https://agentmods.dev/skills/theexperiencecompany/gaia/biome-gritql-plugins"><img src="https://agentmods.dev/badge/skills/theexperiencecompany/gaia/biome-gritql-plugins/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for biome-gritql-plugins

Your own site · 80×15
<a href="https://agentmods.dev/skills/theexperiencecompany/gaia/biome-gritql-plugins"><img src="https://agentmods.dev/badge/skills/theexperiencecompany/gaia/biome-gritql-plugins.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,613 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.01613
Opus 5.5 $0.00016 $0.00645
Sonnet 5.5 $0.00008 $0.00323
Haiku 4.5 $0.00004 $0.00161

Measured 2mo ago against content hash 5dbb91e024a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

biome-gritql-plugins scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/biome-gritql-plugins/SKILL.md · 216 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 216 lines · 40 tokens per session scan A 5dbb91e024a3

Subscribe to this mod's changes

biome-gritql-plugins is a skill published in the GitHub repository theexperiencecompany/gaia (324 stars, last pushed yesterday), with no licence file. It adds 40 tokens to every session and 1,613 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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