wshobson/shellcheck-configuration

Domina la configuración y el uso del análisis estático de ShellCheck para la calidad de scripts de shell. Útil al configurar infraestructura de linting, corregir problemas en el código o asegurar la portabilidad de los scripts.

¿Qué es shellcheck-configuration?

Este skill ofrece una guía completa para configurar y utilizar ShellCheck, una herramienta de análisis estático para scripts de shell. Es ideal para desarrolladores y administradores de sistemas que desean mejorar la calidad, seguridad y portabilidad de sus scripts Bash, SH, Dash y Ksh. El skill detalla cómo instalar ShellCheck, configurar sus reglas mediante archivos .shellcheckrc, y ajustar el nivel de gravedad de los diagnósticos. También incluye recomendaciones para integrar ShellCheck en entornos CI/CD y editores de código, asegurando que los scripts cumplan con las mejores prácticas y eviten errores comunes. Además, proporciona ejemplos prácticos de cómo suprimir advertencias específicas y personalizar el análisis para proyectos complejos. Al dominar este skill, los usuarios pueden reducir significativamente los bugs y vulnerabilidades en sus scripts, facilitando el mantenimiento y la colaboración en equipos de desarrollo.

Compatible con~Claude Code~Codex CLI~Cursor
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Documentación

¿Qué hace shellcheck-configuration?

Domina la configuración y el uso del análisis estático de ShellCheck para la calidad de scripts de shell. Útil al configurar infraestructura de linting, corregir problemas en el código o asegurar la portabilidad de los scripts.

Descripción

ShellCheck es una herramienta de análisis estático para scripts de shell que ayuda a identificar errores, malas prácticas y problemas de portabilidad. Este skill proporciona una guía completa para instalar, configurar y utilizar ShellCheck de manera efectiva en tus proyectos.

Instalación

Puedes instalar ShellCheck a través del gestor de paquetes de tu sistema operativo:

# En Ubuntu/Debian
sudo apt-get install shellcheck

# En macOS con Homebrew
brew install shellcheck

# En sistemas basados en Red Hat
sudo yum install shellcheck

# Usando Cargo (Rust)
cargo install shellcheck

Configuración

ShellCheck se puede configurar mediante un archivo .shellcheckrc en el directorio raíz de tu proyecto o en el directorio home del usuario. Aquí hay un ejemplo de configuración:

# .shellcheckrc
# Habilitar todas las comprobaciones por defecto
enable=all

# Establecer el nivel de gravedad mínimo (error, warning, info, style)
severity=style

# Excluir ciertas reglas (por ID de regla)
disable=SC1091,SC2154

# Configurar rutas de búsqueda para archivos fuente
source-path=SCRIPTDIR
source-path=../lib

Opciones de configuración comunes

  • enable: Habilitar comprobaciones específicas. Usar all para habilitar todas.
  • disable: Deshabilitar comprobaciones específicas.
  • severity: Establecer el nivel de gravedad mínimo a reportar (error, warning, info, style).
  • source-path: Definir rutas de búsqueda para archivos fuente.
  • external-sources: Permitir la búsqueda de fuentes externas (deshabilitado por defecto).

Uso básico

Ejecutar ShellCheck en un script:

shellcheck myscript.sh

Salida de ejemplo:

In myscript.sh line 6:
    echo $nombre
         ^----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean:
    echo "$nombre"

Opciones de línea de comandos

  • -s, --shell: Especificar el shell a usar (bash, sh, dash, ksh).
  • -f, --format: Formato de salida (tty, gcc, checkstyle, diff, json, json1).
  • -e, --exclude: Excluir reglas por ID.
  • -i, --include: Incluir solo reglas específicas.

Ejemplo:

shellcheck -s bash -f gcc myscript.sh

Integración en CI/CD

Para integrar ShellCheck en tuberías CI/CD, se recomienda usar la opción --severity=error para fallar solo en errores críticos:

# Ejemplo para GitHub Actions
- name: Run ShellCheck
  run: |
    shellcheck --severity=error *.sh

Consejos avanzados

  • Suprimir advertencias en línea: Usa anotaciones # shellcheck disable=SCXXXX para suprimir advertencias específicas en líneas concretas.
  • Análisis recursivo: Puedes escanear todos los scripts en un directorio con find . -name "*.sh" -exec shellcheck {} +.
  • Compatibilidad con shells: Usa la opción -s para especificar el shell objetivo y evitar falsos positivos.

Referencias

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

wshobson/accessibility-compliance

Implement WCAG 2.2 compliant interfaces with mobile accessibility, inclusive design patterns, and assistive technology support. Use when auditing accessibility, implementing ARIA patterns, building for screen readers, or ensuring inclusive user experiences.

wshobson/airflow-dag-patterns

Build production Apache Airflow DAGs with best practices for operators, sensors, testing, and deployment. Use when creating data pipelines, orchestrating workflows, or scheduling batch jobs.

wshobson/angular-migration

Migrate from AngularJS to Angular using hybrid mode, incremental component rewriting, and dependency injection updates. Use when upgrading AngularJS applications, planning framework migrations, or modernizing legacy Angular code.

wshobson/anti-reversing-techniques

Understand anti-reversing, obfuscation, and protection techniques encountered during software analysis. Use this skill when analyzing malware evasion techniques, when implementing anti-debugging protections for CTF challenges, when reverse engineering packed binaries, or when building security research tools that need to detect virtualized environments.

wshobson/api-design-principles

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.

wshobson/architecture-decision-records

Write and maintain Architecture Decision Records (ADRs) following best practices for technical decision documentation. Use when documenting significant technical decisions, reviewing past architectural choices, or establishing decision processes.

wshobson/architecture-patterns

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design. Use this skill when designing clean architecture for a new microservice, when refactoring a monolith to use bounded contexts, when implementing hexagonal or onion architecture patterns, or when debugging dependency cycles between application layers.

wshobson/async-python-patterns

Master Python asyncio, concurrent programming, and async/await patterns for high-performance applications. Use when building async APIs, concurrent systems, or I/O-bound applications requiring non-blocking operations.

wshobson/attack-tree-construction

Build comprehensive attack trees to visualize threat paths. Use when mapping attack scenarios, identifying defense gaps, or communicating security risks to stakeholders.

wshobson/auth-implementation-patterns

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.

wshobson/avoid-ai-writing

Audit and rewrite prose so it stops reading as machine-generated. Use this skill when asked to remove AI-isms, clean up AI writing, edit a draft for AI tells, audit a README, changelog, release note, PR description, or blog post for machine-sounding prose, or make text sound less like AI. Supports a detect-only mode, a rewrite mode, and an edit-in-place mode, with optional voice and context profiles.

wshobson/backtesting-frameworks

Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.

wshobson/bash-defensive-patterns

Master defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD pipelines, or system utilities requiring fault tolerance and safety.

wshobson/bats-testing-patterns

Master Bash Automated Testing System (Bats) for comprehensive shell script testing. Use when writing tests for shell scripts, CI/CD pipelines, or requiring test-driven development of shell utilities.

wshobson/bazel-build-optimization

Optimize Bazel builds for large-scale monorepos. Use when configuring Bazel, implementing remote execution, or optimizing build performance for enterprise codebases.

wshobson/before-you-build

Pre-build product and feature risk review for founders, product managers, and AI-assisted builders. Use this skill when the user is about to build a landing page, MVP, SaaS product, internal tool, agent workflow, or major feature and needs to check demand, positioning, monetization, retention, trust, distribution, and adoption risk before implementation starts.

wshobson/billing-automation

Build automated billing systems for recurring payments, invoicing, subscription lifecycle, and dunning management. Use when implementing subscription billing, automating invoicing, or managing recurring payment systems.

wshobson/binary-analysis-patterns

Master binary analysis patterns including disassembly, decompilation, control flow analysis, and code pattern recognition. Use when analyzing executables, understanding compiled code, or performing static analysis on binaries.

wshobson/block-no-verify-hook

Configure a PreToolUse hook to prevent AI agents from skipping git pre-commit hooks with --no-verify and other bypass flags. Use when setting up Claude Code projects that enforce commit quality gates.

wshobson/brand-landingpage

Brand-first landing page designer — runs a brand-identity interview (colors, typography, shape language), then generates and iterates on a polished landing page via Stitch with deployment-ready HTML. Use when the user asks to create, design, or build a landing page, homepage, or marketing page and has no established visual direction. Skip when they have a design mockup, need a dashboard or app UI, are working at component level, building a multi-page app, or restyling with known design tokens — use frontend-design instead.

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