biome-complete

biome-complete is a skill for Claude Code, Codex from pantheon-org/tekhne. It costs 64 tokens per session (1,062 once invoked), scanned A, original, MIT.

A guide to Biome, a tool that checks code for problems and formats it consistently. It covers configuration, migration from ESLint or Prettier, automatic fixes, and continuous integration checks.

In plain words
What is it for?
Use it to set up biome.json, run checks, apply safe fixes, migrate an existing JavaScript or TypeScript project, or configure Biome in CI.
Why use it?
It helps keep linting and formatting rules in one place and reduces disagreements between local and CI results.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to set up biome.json, run checks, apply safe fixes, migrate an existing JavaScript or TypeScript project, or configure Biome in CI.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pantheon-org/tekhne/biome-complete
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 pantheon-org/tekhne --skill biome-complete
Clone the repo
git clone --depth 1 https://github.com/pantheon-org/tekhne

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-complete

README.md
[![agentmods](https://agentmods.dev/badge/skills/pantheon-org/tekhne/biome-complete/github.svg)](https://agentmods.dev/skills/pantheon-org/tekhne/biome-complete)
Your own site
<a href="https://agentmods.dev/skills/pantheon-org/tekhne/biome-complete"><img src="https://agentmods.dev/badge/skills/pantheon-org/tekhne/biome-complete/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-complete

Your own site · 80×15
<a href="https://agentmods.dev/skills/pantheon-org/tekhne/biome-complete"><img src="https://agentmods.dev/badge/skills/pantheon-org/tekhne/biome-complete.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,062 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00064 $0.01062
Opus 5 $0.00032 $0.00531
Sonnet 5 $0.00013 $0.00212
Haiku 4.5 $0.00006 $0.00106

Measured 8d ago against content hash b9535d1f7b21, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

biome-complete 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 8d 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.

skills/development/biome-complete/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Biome Complete Toolchain

When to Apply

Use this skill when the request includes:

  • "set up Biome"
  • "configure biome.json"
  • "migrate from ESLint" or "migrate from Prettier"
  • "fix lint and format drift"
  • "run Biome in CI"

When Not to Apply

Do not use this skill when the user asks for ESLint-only or Prettier-only solutions.

Principles

  1. Use one source of truth for linting and formatting.
  2. Prefer deterministic commands and verifiable output.
  3. Keep SKILL.md short; move deep details to references/.

Deterministic Workflow

  1. Confirm scope: migration, config, lint, format, or CI.
  2. Initialize config if missing: bunx @biomejs/biome init.
  3. Run checks and capture results: bunx @biomejs/biome check ..
    • Verify: Confirm diagnostics are printed. If command fails, check Node.js version (≥14) and file permissions.
  4. Apply safe autofixes: bunx @biomejs/biome check . --write.
    • Verify: Re-run biome check . and confirm reduced error count. If errors persist, review unsupported rules or migration conflicts in references/migration-eslint-prettier.md.
  5. Add targeted suppressions only when justified.
  6. Verify commands pass in local and CI contexts: bunx @biomejs/biome check . --error-on-warnings.
    • Verify: Exit code 0 indicates success. If non-zero, review remaining diagnostics and address or document exceptions.

Error Recovery: If biome check fails after migration, isolate conflicting rules by temporarily disabling rule groups in biome.json linter section, then re-enable one group at a time to identify the source.

Quick Commands

Initialize

bunx @biomejs/biome init

Expected result: biome.json exists.

Check repository

bunx @biomejs/biome check .

Expected result: diagnostics printed with file paths.

Apply safe fixes

bunx @biomejs/biome check . --write

Expected result: fixable issues are rewritten.

Format files

bunx @biomejs/biome format . --write

Read the full file on GitHub · 136 lines

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. 8d ago First seen · 136 lines · 64 tokens per session scan A b9535d1f7b21

Subscribe to this mod's changes

biome-complete is a skill published in the GitHub repository pantheon-org/tekhne (10 stars, last pushed yesterday), licensed MIT. It adds 64 tokens to every session and 1,062 once invoked, about $0.0003 per session on Opus 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 2026-09-03.

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