openfirma: Skill for Claude Code

.skills/lint/SKILL.md

lint is a skill for Claude Code, Codex from Firma-AI/openfirma. It costs 19 tokens per session (270 once invoked), scanned A, original, GPL-3.0.

A checker for formatting and lint rules in OpenFirma projects. It covers Rust code, TOML configuration files and Markdown documents.

In plain words
What is it for?
Checking Rust, TOML and Markdown changes in an OpenFirma codebase.
Why use it?
It catches style and formatting problems before changes are reviewed or merged. The input does not provide further details about its commands or output.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

This is Firma-AI/openfirma's own configuration. It tells Claude Code and Codex how to work on openfirma itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything openfirma configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Firma-AI/openfirma. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Firma-AI/openfirma/main/.skills/lint/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Firma-AI/openfirma

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 lint

README.md
[![agentmods](https://agentmods.dev/badge/skills/firma-ai/openfirma/lint.svg)](https://agentmods.dev/skills/firma-ai/openfirma/lint)
Your own site
<a href="https://agentmods.dev/skills/firma-ai/openfirma/lint"><img src="https://agentmods.dev/badge/skills/firma-ai/openfirma/lint.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 270 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 $0.00019 $0.00270
Opus 5 $0.00010 $0.00135
Sonnet 5 $0.00004 $0.00054
Haiku 4.5 $0.00002 $0.00027

Measured 7d ago against content hash 5e3f65e80108, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

lint 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 7d 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/lint/SKILL.md · 56 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 7d ago First seen · 56 lines · 19 tokens per session scan A 5e3f65e80108

Subscribe to this mod's changes

lint is a skill published in the GitHub repository Firma-AI/openfirma (132 stars, last pushed today), licensed GPL-3.0. It adds 19 tokens to every session and 270 once invoked, about $0.0001 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 2026-08-30.