impact-analyzer

What problem does it solve?

This Skill prevents unexpected errors and regressions by accurately predicting the direct and indirect impact of code changes. It helps developers understand the full scope of a modification, assess its risk, and identify necessary tests before implementation, ensuring safer and more confident refactoring.

Core Features & Use Cases

• Change Propagation Analysis: Traces reverse dependency trees to identify all affected code units, from direct callers to indirect dependents.
• Risk Scoring & Leveling: Calculates a numerical risk score and assigns a risk level (low, medium, high, critical) based on change type and impact, guiding decision-making.
• Automated Test Suggestions: Recommends specific tests to run based on the identified impact scope, ensuring critical areas are thoroughly validated.
• Use Case: Before refactoring a core utility function, you can ask the AI to "analyze the impact of changing utils/formatDate.ts's signature" to receive a report detailing all files that call it, their callers, the overall risk, and a list of tests to execute.

Quick Start

Analyze the impact of deleting the function calculateTotal in src/services/order.ts.