Excessive Data Exposure Detection

Excessive Data Exposure Detection is a Quality skill for Claude Code, published by xalgord in xalgorix.

852 stars151 forkson xalgord/xalgorixAdded 2026/07/20+1% in starsRepository updated 2026/08/04

ai-agentai-securityautomationautonomous-pentestingbug-bountycybersecurityethical-hackinggolangpenetration-testingpentestpentesting-toolsreconsecuritysecurity-researchsecurity-toolstypescriptvulnerability-detectionvulnerability-scanner

Install in seconds

Install Excessive Data Exposure Detection

Copy Excessive Data Exposure Detection into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/xalgorix/xalgorix/tree/main/internal/tools/skills/data/api-security/exploiting-excessive-data-exposure-in-api ~/.claude/skills/exploiting-excessive-data-exposure-in-api

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/xalgorix/xalgorix.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: internal/tools/skills/data/api-security/exploiting-excessive-data-exposure-in-api/SKILL.md in xalgord/xalgorix
Installs to: ~/.claude/skills/exploiting-excessive-data-exposure-in-api
Collection: One of 51 skills cataloged from this repository
Category: Quality — 1897 skills

What Excessive Data Exposure Detection does

Tests APIs for excessive data exposure by identifying when endpoints return sensitive data (PII, secrets, internal fields) beyond what the client actually uses. Useful in penetration testing and API security assessments to find data leaks.

Excessive Data Exposure Detection is cataloged under Quality on DirSkills. Excessive Data Exposure Detection comes from a repository tagged ai-agent, ai-security, automation, autonomous-pentesting and bug-bounty.

Documentation

README

Excerpt

Exploiting Excessive Data Exposure in API

When to Use

Testing APIs where the frontend displays a subset of data but the API response includes additional fields
Assessing mobile application APIs where responses are designed for multiple client types and may contain excess data
Identifying PII leakage in API responses that include email addresses, phone numbers, SSNs, or payment data not shown in the UI
Testing GraphQL APIs where clients can request arbitrary fields including sensitive attributes
Evaluating APIs after microservice refactoring where internal service-to-service data leaks into public endpoints

Do not use without written authorization. Data exposure testing involves capturing and analyzing potentially sensitive personal data.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Excessive Data Exposure Detection

What else does xalgord publish alongside Excessive Data Exposure Detection?
Excessive Data Exposure Detection is one of 51 skills that DirSkills catalogs from xalgord/xalgorix, the repository it ships in. Its siblings there include AFL++ Fuzzing, AI Security Guardrails and AI-Assisted Vulnerability Discovery. Each one is a separate skill with its own page in this directory, installs the same way Excessive Data Exposure Detection does, and is maintained by xalgord in that same repository. The rest of the collection is listed on the xalgord/xalgorix page.
How does Excessive Data Exposure Detection compare to other Quality skills?
Excessive Data Exposure Detection ranks #923 by stars among the 1897 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Excessive Data Exposure Detection against them. Open each page to compare what they document and how they install.