novaestellar/novahaku · testing/hunt/hunt-shadow-api/SKILL.md

hunt-shadow-api skillA

hunt-shadow-api is agent-read markdown (skill) from novaestellar/novahaku: Hunt shadow / zombie / undocumented API surface (OWASP API9 Improper Inventory Management) — enumerate the full API version history (v1/v2/beta/legacy paths, header- and subdomain-based versioning), pull and diff every reachable OpenAPI/Swagger spec (including ones only findable via the Wayback Machine), and behaviorally diff old vs. current versions for auth/rate-limit/validation regressions rather than just response-shape differences. Distinct from hunt-api-misconfig, which owns exploitation o.

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 novaestellar/novahaku/hunt-shadow-api@git:20260910.546fe86
Exact content
mdr add novaestellar/novahaku/hunt-shadow-api@sha256:69ea8a122bb1b0d4

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_dcctz2ocvbd7o7wa.svg)](https://markdownregistry.com/a/art_dcctz2ocvbd7o7wa)

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Versions

versioncommittedcommitsizeaudit
git:20260910.546fe86 latest2026-09-10 546fe86 8,404 BA view · diff
git:20260903.29924dd2026-09-03 29924dd 8,416 BA view · diff
git:20260903.fa855c42026-09-03 fa855c4 8,387 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 (8404 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

novaestellar/novahaku · 24 stars · license none · pushed 2026-09-10 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dcctz2ocvbd7o7wa
GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/hunt-shadow-api
GET https://markdownregistry.com/api/v1/blob/69ea8a122bb1b0d4ba02b34238e5b637987c80965ee7bc287371b919c8ff0b60

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