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Shellcheck Config Generator

DevOps & Security
shellcheck-config-generator

Shellcheck Config Generator is an Agent Skill for devops & security published in the a5c-ai/babysitter repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Generate .shellcheckrc configuration with appropriate rules, exclusions, and severity settings for shell script linting.

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/a5c-ai/babysitter/blob/HEAD/library/specializations/cli-mcp-development/skills/shellcheck-config-generator/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/shellcheck-config-generator, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

ShellCheck Config Generator

Generate ShellCheck configuration for shell script linting.

Capabilities

  • Generate .shellcheckrc files
  • Configure rule exclusions
  • Set shell dialect
  • Configure severity levels
  • Document rule decisions
  • Create project-specific configs

Usage

Invoke this skill when you need to:

  • Set up ShellCheck for a project
  • Configure linting rules
  • Exclude specific warnings
  • Document rule decisions

Generated Configuration

# .shellcheckrc - ShellCheck configuration
# https://www.shellcheck.net/wiki/

# Default shell dialect (sh, bash, dash, ksh)
shell=bash

# Source path for sourced files
source-path=SCRIPTDIR
source-path=lib/

# External sources (follow source commands)
external-sources=true

# Severity level: error, warning, info, style
severity=warning

# Disable specific warnings

# SC1090: Can't follow non-constant source
disable=SC1090

# SC1091: Not following (sourced file not found)
disable=SC1091

# SC2034: Variable appears unused (often used in sourced scripts)
# disable=SC2034

# SC2086: Double quote to prevent globbing (sometimes intentional)
# disable=SC2086

# SC2155: Declare and assign separately
# disable=SC2155

# Enable optional checks

# Check for unquoted variables that could be empty
enable=check-unassigned-uppercase

# Check for extra masking of return values
enable=check-extra-masked-returns

Rule Categories

Critical (Never Disable)

  • SC2094: File read and written in same pipeline
  • SC2095: Add < /dev/null to prevent ssh from eating stdin
  • SC2096: Script requires shebang
  • SC2148: Missing shebang

Important (Disable Carefully)

  • SC2086: Double quote to prevent globbing
  • SC2046: Quote to prevent word splitting
  • SC2035: Use ./* to avoid globbing issues
  • SC2012: Use find instead of ls

Style (Project Decision)

  • SC2034: Variable appears unused
  • SC2155: Declare and assign separately
  • SC2164: Use cd ... || exit

Target Processes

  • shell-script-development
  • cli-unit-integration-testing
  • cross-platform-cli-compatibility