Agent skill

Lint

Runs linter+typechecker with auto-detected toolchain (ruff/mypy, eslint/tsc, phpstan, golangci-lint, clippy).

Apache-2.0Auto-check: notesDevelopment

Install Lint

skills CLI

$ npx skills add softspark/ai-toolkit --skill lint -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install softspark/ai-toolkit lint --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/app/skills/lint .claude/skills/lint && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "lint" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint into .claude/skills/lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lint", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add softspark/ai-toolkit --skill lint -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install softspark/ai-toolkit lint --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/app/skills/lint .agents/skills/lint && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "lint" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint into .agents/skills/lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lint", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add softspark/ai-toolkit --skill lint -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install softspark/ai-toolkit lint --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/app/skills/lint .cursor/skills/lint && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "lint" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint into .cursor/skills/lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lint", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/softspark/ai-toolkit.git --path app/skills/lint

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add softspark/ai-toolkit --skill lint -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install softspark/ai-toolkit lint --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/app/skills/lint .gemini/skills/lint && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "lint" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint into .gemini/skills/lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lint", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install softspark/ai-toolkit lint

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add softspark/ai-toolkit --skill lint -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/app/skills/lint .github/skills/lint && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "lint" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint into .github/skills/lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lint", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add softspark/ai-toolkit --skill lint -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install softspark/ai-toolkit lint --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/softspark/ai-toolkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/app/skills/lint .opencode/skills/lint && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "lint" agent skill from https://github.com/softspark/ai-toolkit/tree/main/app/skills/lint into .opencode/skills/lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lint", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: lint
GitHub stars: 179
Token cost: ~1.1k tokens
SKILL.md length: 452 words
Files: 2 (incl. scripts)
Skills in repo: 112
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Runs linter+typechecker with auto-detected toolchain (ruff/mypy, eslint/tsc, phpstan, golangci-lint, clippy).

Tasks that involve Linting and formatting
SKILL.md covers Project context, Auto-Detection, Usage and Commands by Project Type, plus 9 more sections
Runs Python scripts from its folder; calls ruff, npx and mypy

What it does

Lint is an agent skill from softspark/ai-toolkit. Runs linter+typechecker with auto-detected toolchain (ruff/mypy, eslint/tsc, phpstan, golangci-lint, clippy). Triggers: lint, typecheck, static analysis.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/detect-linters.py`).

It sits in Development, covering Linting and formatting. It works with Ruff and ESLint. The repository describes itself as: Professional-grade AI coding toolkit: 94 skills, 44 agents, multi-platform (Claude, Cursor, Windsurf, Copilot, Gemini, Cline, Roo Code, Aider, Augment, Antigravity, Codex CLI… The licence is Apache-2.0.

When your agent uses it

Tasks that involve Linting and formatting

Example prompts

“/lint”

Requirements

Python 3
Node.js
Docker
Pre-approved tools (allowed-tools): Bash, Read

What it can do on your machine

Read from SKILL.md and the folder at commit d64db2b. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Bash
- Read
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
- ruff
- npx
- mypy
- docker
- python3
- cargo
- dart
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx and docker, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Lint loads about 1.1k tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 452 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~40
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Bash, Read
```

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from softspark/ai-toolkit at commit d64db2b, republished under its Apache-2.0 licence (© softspark). 452 words, ~1,103 tokens.

Download SKILL.mdSave it as .claude/skills/lint/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: lint
description: Runs linter+typechecker with auto-detected toolchain (ruff/mypy, eslint/tsc, phpstan, golangci-lint, clippy). Triggers: lint, typecheck, static analysis.
allowed-tools: Bash, Read
effort: low
disable-model-invocation: true
argument-hint: [path]

Lint Runner

$ARGUMENTS

Run linting and type checking based on detected project type.

Project context

Project files: !ls pyproject.toml package.json composer.json pubspec.yaml go.mod 2>/dev/null

Auto-Detection

Run the bundled script to detect available linters:

bash

python3 ${CLAUDE_SKILL_DIR}/scripts/detect-linters.py .

Usage

/lint [path]

Commands by Project Type

Project Type	Lint Command	Type Check
Python	`ruff check .`	`mypy .`
TypeScript/Node	`npx eslint .`	`npx tsc --noEmit`
PHP	`./vendor/bin/phpstan analyse`	-
Go	`golangci-lint run`	-
Rust	`cargo clippy`	-
Flutter/Dart	`dart analyze`	-

Python Projects

bash

# Linting
ruff check .

# Type checking
mypy .

# Auto-fix
ruff check --fix .
ruff format .

TypeScript/Node Projects

bash

# Linting
npx eslint .

# Type checking
npx tsc --noEmit

# Auto-fix
npx eslint --fix .

PHP Projects

bash

# Static analysis
./vendor/bin/phpstan analyse

# Code style
./vendor/bin/phpcs
./vendor/bin/phpcbf  # auto-fix

Docker Execution (if applicable)

bash

# Generic pattern - replace {container} with your app container
docker exec {container} make lint
docker exec {container} make typecheck

Quality Gates

Linting: 0 errors
Type checking: 0 errors (for new code)

Common Issues

Error	Fix
Missing type hints	Add type annotations
Unused imports	Remove or use `# noqa: F401`
Line too long	Break line or disable for that line
Import order	Let linter fix with `--fix`

Rules

MUST auto-detect the linter from project config (pyproject.toml, package.json, .eslintrc.*, composer.json, go.mod, Cargo.toml, pubspec.yaml) — do not assume
MUST show the diff before applying any --fix run; the user owns the decision to accept auto-fixes
NEVER suppress lint errors with blanket # noqa or eslint-disable-next-line without naming the specific rule and a reason
NEVER run the formatter (ruff format, prettier, dprint) inside a lint pass unless the project has that wired explicitly — formatting and linting are separate concerns
CRITICAL: report the error count before and after any auto-fix — delta visibility is what makes the run trustworthy
MANDATORY: respect the project's lint config (.ruff.toml, eslint.config.js, phpstan.neon) — overriding project rules on the fly produces arguments during code review

Show full SKILL.md (215 more words)Show less

Gotchas

ruff check . and ruff format . are separate commands in modern ruff (>0.1.0). Running only ruff check misses formatting drift; some repos expect both as part of "lint".
mypy without --strict has a permissive default: missing annotations count as Any, so the type checker silently accepts untyped functions. Check whether the project pins strict = true in pyproject.toml before declaring "0 type errors".
eslint follows eslint.config.js (flat config, ESLint 9+) OR .eslintrc.* (legacy). Mixing produces mysterious "no rules applied" errors. Check ESLint version first (npx eslint --version).
phpstan levels (0-10) silently affect which rules apply. A repo at level 5 has different expectations than level 9; report the level alongside the error count.
golangci-lint composes many linters; disabling one at the project level may still show its warnings if invoked with --enable-all flag. Check .golangci.yml before treating a warning as a new regression.
Dart analyze reports on all files including generated *.g.dart. Some projects expect generated files to be excluded via analysis_options.yaml; without it, lint noise dominates real issues.

When NOT to Use

To fix the errors — use /fix after this skill surfaces them
To run tests — use /test
For code review of logic and design — use /review
For security-specific static analysis (SAST) — use /cve-scan or /security-patterns
For project-specific rule authoring — edit the linter's config directly

Files

SKILL.md and 1 other file (scripts) in app/skills/lint of softspark/ai-toolkit.

SKILL.md
scripts/detect-linters.py

Open the folder on GitHubat commit d64db2b

Compare with similar skills

Lint next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Lint compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Lint this skillsoftspark/ai-toolkit	179	—	~1.1k	Automated safety check: Notes	Apache-2.0	yesterday
Ha Code QualityFutureTense/keymaster	349	—	~462	Automated safety check: Pass	MIT	6 days ago
Cb Code QualityBlkLeg/CircuitBreaker	201	—	~1.9k	Automated safety check: Pass	MIT	2 days ago
Same Results Less Codepproenca/dot-skills	214	—	~3k	Automated safety check: Pass	MIT	1 mo ago
Frappe Testing CicdImpertio-Studio/Frappe_Claude_Skill_Package	187	—	~3.2k	Automated safety check: Notes	MIT	20 days ago
Run Testsartcc/freelingo	158	—	~976	Automated safety check: Pass	AGPL-3.0	today

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Questions about Lint

What does Lint do?

Runs linter+typechecker with auto-detected toolchain (ruff/mypy, eslint/tsc, phpstan, golangci-lint, clippy). Lint is an agent skill from softspark/ai-toolkit. Runs linter+typechecker with auto-detected toolchain (ruff/mypy, eslint/tsc, phpstan, golangci-lint, clippy).

When should I use Lint?

Lint fits situations like: tasks that involve Linting and formatting.

How do I install Lint in Claude Code?

Run `npx skills add softspark/ai-toolkit --skill lint -a claude-code`. Or copy the skill folder (app/skills/lint in softspark/ai-toolkit) into .claude/skills/lint in your project. Claude Code loads it when a task matches its description.

How do I install Lint in Codex?

Run `npx skills add softspark/ai-toolkit --skill lint -a codex`. Or copy the skill folder (app/skills/lint in softspark/ai-toolkit) into .agents/skills/lint in your project. Codex loads it when a task matches its description.

Can I use Lint in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add softspark/ai-toolkit --skill lint -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/lint, .gemini/skills/lint, .github/skills/lint and .opencode/skills/lint in your project.

What does Lint need to run?

Going by SKILL.md and its folder, Lint needs Python for the scripts in its folder and the command-line tools its instructions call (ruff, npx, mypy, docker, python3 and cargo). Our summary lists: Python 3; Node.js; Docker. Its frontmatter pre-approves these tools: Bash, Read.

Does Lint access the network?

SKILL.md contains no URLs. Its commands use npx and docker, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Lint safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Lint use?

Lint is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Lint use?

About 1.1k tokens (SKILL.md is roughly 4.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Lint?

Skills that share tags, products or a category with Lint: Ha Code Quality (FutureTense/keymaster, 349 stars), Cb Code Quality (BlkLeg/CircuitBreaker, 201 stars), Same Results Less Code (pproenca/dot-skills, 214 stars) and Frappe Testing Cicd (Impertio-Studio/Frappe_Claude_Skill_Package, 187 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Lint?

softspark (a GitHub user) maintains it in softspark/ai-toolkit, which has 179 GitHub stars. The repository holds 112 skills in this directory. The repository was last updated on October 7, 2026.

Source: softspark/ai-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Lint

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Lint Runner

Project context

Auto-Detection

Usage

Commands by Project Type

Python Projects

TypeScript/Node Projects

PHP Projects

Docker Execution (if applicable)

Quality Gates

Common Issues

Rules

Gotchas

When NOT to Use

Files

Compare with similar skills

Similar skills

More from softspark/ai-toolkit

Related

Questions about Lint