observer-ward

Fingerprint exposed web applications and services from HTTP, banners, headers, and TLS data.

612|102|Updated Apr 27, 2026
One-click install
npx skills add https://github.com/yv1ing/Z3r0 --skill observer-ward
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: observer-ward
Source: https://github.com/yv1ing/Z3r0/tree/main/sandbox/.agents/skills/observer-ward
Command: npx skills add https://github.com/yv1ing/Z3r0 --skill observer-ward

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Identify exposed web applications and services through fingerprinting for authorized targets.

Core Features & Use Cases

  • Lightweight fingerprinting to identify product names, versions, and technologies from HTTP headers, banners, TLS data, and probe data.
  • Evidence-driven triage to prioritize validation work with matched product names, versions, and contexts.
  • Use Case: For a red-team assessment, quickly map target technology footprints to inform further validation steps.

Quick Start

Run observer_ward against your in-scope targets to fingerprint web applications and services.

Frequently Asked Questions about observer-ward

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fingerprint web applications from HTTP headers and TLS data for authorized targets?

Fingerprint web applications by analyzing HTTP headers, banners, TLS data, and probe outputs. This Skill processes authorized targets via -t/--target or -l/--list inputs to identify product names, versions, and technologies for quick triage and evidence gathering.

Can I output machine-readable JSON with evidence details during security testing reconnaissance?

Yes, you can output machine-readable JSON with evidence details during reconnaissance. Use the optional --ir or --ic flags to emit matched product names, versions, and contexts to prioritize your validation work.

Does observer-ward enforce explicit target authorization before running fingerprinting probes?

Yes, observer-ward enforces explicit target authorization before running any fingerprinting probes. This ensures all HTTP target reconnaissance, banner analysis, and TLS data extraction remains strictly within your approved assessment scope.

What is the best way to identify exposed web services and technologies for a red-team assessment?

The best way to identify exposed web services is lightweight fingerprinting of HTTP headers and banners. This maps target technology footprints quickly, informing further validation steps and evidence-driven triage for your red-team assessment.

How do I process multiple in-scope HTTP targets for technology footprint mapping?

Process multiple in-scope HTTP targets by passing a file list using the -l/--list flag. The Skill fingerprints each authorized target and emits machine-readable JSON results with product names and versions for evidence gathering.

Why does fingerprinting require probe outputs and banner analysis alongside HTTP headers?

Fingerprinting requires probe outputs and banner analysis alongside HTTP headers to accurately identify product names and versions. Combining these data sources provides comprehensive evidence for mapping exposed web applications and technologies.