Shellcheck Configuration

The shellcheck-configuration skill enables AI agents to analyze shell scripts for potential errors, style issues, and security vulnerabilities using the ShellCheck static analysis tool. It provides immediate feedback on bash, sh, dash, and zsh scripts to ensure robustness before execution.

When to use it

• Pre-commit validation: Integrate into CI/CD pipelines or local workflows to catch syntax errors before code reaches production.
• Security auditing: Identify dangerous commands like eval or unsafe variable expansions that could lead to shell injection attacks.
• Style enforcement: Enforce consistent coding standards across a team by configuring specific rules for linting.
• Legacy script modernization: Analyze outdated scripts to suggest improvements in syntax and best practices.

Key capabilities

• Static analysis of shell scripts without execution.
• Detection of syntax errors, undefined variables, and quoting issues.
• Support for multiple shells including bash, sh, dash, and zsh.
• Configurable rule sets to suppress specific warnings or enforce strict standards.
• Integration with various development environments via CLI or API hooks.

Example prompts

• "Run ShellCheck on this script and list all critical security vulnerabilities found."
• "Configure ShellCheck to ignore warning SC2086 but flag all undefined variable usage in my bash file."
• "Analyze this legacy shell script for deprecated syntax and suggest modern alternatives."

Tips & gotchas

Ensure the target shell scripts are syntactically valid enough for ShellCheck to parse; highly malformed scripts may yield false positives. Always review warnings marked as 'style' rather than treating them as critical errors unless strict compliance is required.