XXE Detection

by utkusen

XXE Detection is a Quality skill for Claude Code, published by utkusen in sast-skills.

1.3K stars61 forkson utkusen/sast-skillsAdded 2026/07/20Repository updated 2026/04/08

View source on GitHub Download repo ZIP

ai-securityclaudeclaude-codesast

Install in seconds

Install XXE Detection

Copy XXE 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/utkusen/sast-skills/tree/main/sast-files/.agents/skills/sast-xxe ~/.claude/skills/sast-xxe

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/utkusen/sast-skills.git

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

In this catalog

Source file: sast-files/.agents/skills/sast-xxe/SKILL.md in utkusen/sast-skills
Installs to: ~/.claude/skills/sast-xxe
Collection: One of 17 skills cataloged from this repository
Category: Quality — 1897 skills

What XXE Detection does

Detect XML External Entity (XXE) vulnerabilities in a codebase using a three-phase approach: recon, batched verify, and merge. Use when asked to find XXE or XML injection bugs.

XXE Detection is cataloged under Quality on DirSkills. XXE Detection comes from a repository tagged ai-security, claude, claude-code and sast.

Documentation

README

Excerpt

XML External Entity (XXE) Detection

You are performing a focused security assessment to find XXE vulnerabilities in a codebase. This skill uses a three-phase approach with subagents: recon (find XML parsing sites where external entities are not safely disabled), batched verify (trace whether user-supplied input reaches those parsers, in parallel batches of 3), and merge (consolidate batch results into one report).

Prerequisites: sast/architecture.md must exist. Run the analysis skill first if it doesn't.

What is XXE

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

Frequently asked about XXE Detection

What else does utkusen publish alongside XXE Detection?
XXE Detection is one of 17 skills that DirSkills catalogs from utkusen/sast-skills, the repository it ships in. Its siblings there include Business Logic Vulnerability Detection, Cross-Site Scripting Detection and GraphQL Injection Detection. Each one is a separate skill with its own page in this directory, installs the same way XXE Detection does, and is maintained by utkusen in that same repository. The rest of the collection is listed on the utkusen/sast-skills page.
How does XXE Detection compare to other Quality skills?
XXE Detection ranks #726 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 XXE Detection against them. Open each page to compare what they document and how they install.