unboundcompute/security-agent-skills · skills/testing-web-cache-deception/SKILL.md

testing-web-cache-deception skillA

testing-web-cache-deception is agent-read markdown (skill) from unboundcompute/security-agent-skills: Test web cache deception, where an attacker crafts a static-looking URL, using an added extension, a path delimiter, or a query variant, that maps to the same authenticated dynamic response while a shared cache, keying on the apparent extension or path, stores that private response and serves it to the attacker. Use when a shared cache sits in front of authenticated content and its rule for what is cacheable can disagree with what the origin treats as the same resource. Covers extension-based ca.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add unboundcompute/security-agent-skills/testing-web-cache-deception@git:20260903.6dac719
Exact content
mdr add unboundcompute/security-agent-skills/testing-web-cache-deception@sha256:eec19c9d543ea961

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qltweko244ohtcqb.svg)](https://markdownregistry.com/a/art_qltweko244ohtcqb)

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Versions

versioncommittedcommitsizeaudit
git:20260903.6dac719 latest2026-09-03 6dac719 10,499 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10499 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

unboundcompute/security-agent-skills · 5 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qltweko244ohtcqb
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/testing-web-cache-deception
GET https://markdownregistry.com/api/v1/blob/eec19c9d543ea961224ae3656a52ef8c973282ba52864da1209fc5f9df606aef

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.