Does it support comparing different requests?

Yes, the 'diff' command allows for a side-by-side comparison of two entries, which is perfect for identifying why one request succeeded while another failed.

Does this tool help with security audits?

Yes, it includes a dedicated 'security' command that automatically scans the archive for JWTs, API keys, and insecure cookie configurations.

What is the reference system in HAR Analyzer?

It assigns unique IDs (e.g., [ref:e14.rs.body]) to large data chunks. Subsequent views show the ID and a preview instead of repeating the full content, saving significant token space.

Why shouldn't I use cat or jq on a HAR file in Claude?

Raw HAR files are extremely verbose; reading them directly can consume 10-100x more tokens than using this specialized analyzer, which uses a reference system to keep context small.

Can I see the full response body if it was referenced?

Yes, you can use the 'expand' command with the specific reference ID to retrieve and display the full content when needed.

HAR Analyzer

Name: HAR Analyzer
Author: genesiscz

bygenesiscz

•

API Development

Analyzes HTTP Archive (HAR) files efficiently using a reference system to minimize token usage during network debugging.

HAR Analyzer is a specialized skill for Claude Code designed to perform deep inspections of web network traffic without exhausting token limits. It parses complex HAR files into a manageable dashboard, allowing users to filter by status codes, drill down into specific domains, and perform automated security audits. By using a sophisticated reference system, the tool avoids repeating large data blocks like JSON response bodies, instead assigning them unique IDs for future reference. This ensures that Claude can maintain context over long debugging sessions involving hundreds of network requests, making it indispensable for API troubleshooting, performance analysis, and security reviews.

Key Features

01Schema extraction (TypeScript/JSON) from request and response bodies

02Side-by-side entry diffing to compare successful versus failing requests

03Token-efficient reference system to prevent redundant data processing

044 GitHub stars

05Advanced filtering by domain, status code, method, and URL

06Automated security auditing for leaked JWTs, API keys, and insecure cookies

Use Cases

01Debugging failed API integrations by inspecting status codes and error payloads

02Identifying sensitive data exposure in network headers or request bodies

03Analyzing web performance and resource loading patterns via ASCII waterfall charts

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add genesiscz/genesistools analyze-har

For use in Claude.ai and ChatGPT

Download Skill