Does it support API contract validation?

Yes, it specifically checks for changes in return types, exceptions, and parameters that could break public-facing APIs or internal microservices.

What is a 'blast radius' in code analysis?

A blast radius refers to the total scope of methods, classes, services, and data structures that could potentially be affected or broken by a single code modification.

How does this skill help prevent regressions?

It identifies all upstream callers and downstream dependencies of a changed file, ensuring developers know exactly which parts of the system need re-testing.

Can it identify side effects in event-driven systems?

The tool analyzes event publishers and message payloads to warn you if a code change might affect downstream asynchronous subscribers.

Bug Impact Analyzer

Name: Bug Impact Analyzer
Author: dykyi-roman

bydykyi-roman

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Security & Testing

Analyzes the blast radius of code changes to identify affected dependencies, API contracts, and potential side effects before deploying fixes.

The Bug Impact Analyzer is a comprehensive diagnostic tool for Claude Code designed to map out the "blast radius" of any code modification. It systematically evaluates how a bug fix ripples through a codebase by analyzing direct callers, downstream dependencies, data flow trajectories, and event-driven architectures. By identifying breaking changes in API contracts or database schemas early, it helps developers mitigate risks, ensure comprehensive test coverage, and maintain system stability during the debugging and refactoring process.

Key Features

01Analyzes data flow from input DTOs through business logic to database persistence

02Visualizes the 'Blast Radius' of code changes across multiple architectural layers

03Evaluates impacts on API contracts and event-driven message payloads

04Generates detailed impact assessment reports with testing gap analysis

05Maps direct callers and callees to identify critical architectural dependencies

0645 GitHub stars

Use Cases

01Identifying missing unit and integration tests for specific code paths affected by a change

02Assessing the risk of refactoring a core domain service in a complex application

03Determining if a bug fix requires a database migration or an API version bump

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dykyi-roman/awesome-claude-code bug-impact-analyzer

For use in Claude.ai and ChatGPT

Download Skill