Deadcode

Unused Variables & Parameters

• Identify declared variables never read.
• Find function parameters never referenced in the function body.
• Respect _ prefix convention for intentionally unused params.

Unreachable Code

• Code after unconditional return, throw, break, continue.
• Conditions that are always true/false (e.g., if (false)).

Unused Files

• Files not imported/required by any other file.
• Test files and config files should be excluded from this check.

Commented-Out Code

• Large blocks of commented code (>5 lines) that are likely stale.

4. Present findings grouped by category with file paths and line numbers.
5. For each finding, assess confidence (high/medium/low) based on static analysis limitations.
6. Remove only with user approval, starting with high-confidence items.

Guidelines

• Never auto-delete — always present findings and ask for confirmation.
• Respect dynamic usage patterns: getattr(), eval(), reflection, decorators, dependency injection.
• Check for framework conventions (e.g., Django views referenced in urls.py, React components used in JSX).
• Exclude test files, config files, and type definition files from "unused" reports.
• For libraries/packages, exported public API should not be flagged as dead code.
• Note limitations: static analysis cannot catch all dynamic references.