biomejs--biome--biome-developer

biomejs--biome--biome-developer is a plugin for Claude Code from tomevault-io/claude-code-plugins. Its token cost is not measured, scanned A, original, no licence file.

A general development guide for working on Biome, a tool for checking and formatting source code. It covers Biome-specific structures and patterns such as syntax trees and embedded languages.

In plain words
What is it for?
It is for learning Biome development practices and handling syntax nodes, extracted strings, and embedded-language code.
Why use it?
It helps developers avoid common mistakes when changing Biome's code and understand its internal conventions.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It is for learning Biome development practices and handling syntax nodes, extracted strings, and embedded-language code.

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Install in Claude Code
/plugin marketplace add tomevault-io/claude-code-plugins/plugin install biomejs--biome--biome-developer
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.

Clone the repo
git clone --depth 1 https://github.com/tomevault-io/claude-code-plugins

Made for: Claude Code.

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 biomejs--biome--biome-developer

README.md
[![agentmods](https://agentmods.dev/badge/plugins/tomevault-io/claude-code-plugins/biomejs-biome-biome-developer/github.svg)](https://agentmods.dev/plugins/tomevault-io/claude-code-plugins/biomejs-biome-biome-developer)
Your own site
<a href="https://agentmods.dev/plugins/tomevault-io/claude-code-plugins/biomejs-biome-biome-developer"><img src="https://agentmods.dev/badge/plugins/tomevault-io/claude-code-plugins/biomejs-biome-biome-developer/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 biomejs--biome--biome-developer

Your own site · 80×15
<a href="https://agentmods.dev/plugins/tomevault-io/claude-code-plugins/biomejs-biome-biome-developer"><img src="https://agentmods.dev/badge/plugins/tomevault-io/claude-code-plugins/biomejs-biome-biome-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
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.
Security

Grade A, and why

biomejs--biome--biome-developer 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 6d 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.

biomejs--biome--biome-developer/.claude-plugin/plugin.json · 14 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 6d ago First seen · 14 lines scan A f322b1c242a0

Subscribe to this mod's changes

biomejs--biome--biome-developer is a plugin published in the GitHub repository tomevault-io/claude-code-plugins (3 stars, last pushed today), with no licence file. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-09-03.