lint

lint is a skill for Claude Code, Codex from helderberto/agent-skills. It costs 70 tokens per session (383 once invoked), scanned A, original, MIT.

A project-aware linting and formatting check. Linting scans code for style problems and common mistakes, while formatting applies consistent code layout.

In plain words
What is it for?
Use it to run lint checks, format code when requested, and report the affected files and line numbers when problems are found.
Why use it?
It catches issues before they reach review or production and uses the project’s existing tools and commands instead of assuming a particular setup.

Skill for Claude CodeCodex

Part of the hb plugin — 40 skills, 6 agents shipped together

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.

agentmods
npx agentmods add skills/helderberto/agent-skills/lint
Any agent
npx skills add helderberto/agent-skills --skill lint
Clone the repo
git clone --depth 1 https://github.com/helderberto/agent-skills

Made for: Claude Code, Codex.

Or install hb, the plugin that ships this one along with the rest of its 40 skills, 6 agents.

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/helderberto/agent-skills/lint.svg)](https://agentmods.dev/skills/helderberto/agent-skills/lint)
Your own site
<a href="https://agentmods.dev/skills/helderberto/agent-skills/lint"><img src="https://agentmods.dev/badge/skills/helderberto/agent-skills/lint.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 383 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00070 $0.00383
Opus 5 $0.00035 $0.00192
Sonnet 5 $0.00014 $0.00077
Haiku 4.5 $0.00007 $0.00038

Measured 2d ago against content hash 170c69dea9a8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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 · 40 lines

What it actually says

Linting

Run the project's linter/formatter — detect it, don't assume a toolchain.

Detection

Prefer a task the project already defines, then fall back to the ecosystem tool:

Ecosystem Check Fix
Node package.json lint (eslint/biome) lint:fix
Python ruff check / flake8 ruff check --fix
Go golangci-lint run / gofmt -l gofmt -w
Rust cargo clippy / cargo fmt --check cargo fmt
else Makefile / CI lint target

Workflow

  1. Detect the linter (project task first, then ecosystem default)
  2. Run the check command
  3. For fixes: run the fix variant (only when requested)
  4. Report file:line references for all errors

Rules

  • Prefer the project's defined task over a raw tool call
  • Never invent a linter the project doesn't use

Error Handling

  • If no linter or task found → report which config/task is expected and stop
  • If the linter exits with parse errors → report each file-level parse error separately with file:line
  • If the linter config is missing → report which config is expected and stop
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. 2d ago Changed · +18 tokens per session 170c69dea9a8
  2. 5d ago First seen · 40 lines · 52 tokens per session scan A e42b12f79fb2

Subscribe to this mod's changes

lint is a skill published in the GitHub repository helderberto/agent-skills (14 stars, last pushed 4d ago), licensed MIT. It adds 70 tokens to every session and 383 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 2026-08-30.

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