novaestellar/novahaku · testing/hunt/hunt-llm-ai/SKILL.md

hunt-llm-ai skillC

hunt-llm-ai is agent-read markdown (skill) from novaestellar/novahaku: Hunt LLM/AI feature bugs — prompt injection, indirect injection, exfiltration via tool-use/markdown, ASCII smuggling, agentic AI security (OWASP Agentic Apps 2026, ASI01-ASI10). Patterns: direct injection ('ignore previous instructions'), indirect injection via documents/web pages/email the model reads, ASCII smuggling (Unicode Tags block U+E0000-U+E007F, invisible to humans, decoded by the model), tool-use exfiltration (model has fetch/browse tool, attacker injects OOB URL, model exfils chat hi.

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-llm-ai@git:20260910.546fe86
Exact content
mdr add novaestellar/novahaku/hunt-llm-ai@sha256:45194ba67f928238

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_yxlxooe4j7hnxjab.svg)](https://markdownregistry.com/a/art_yxlxooe4j7hnxjab)

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Versions

versioncommittedcommitsizeaudit
git:20260910.546fe86 latest2026-09-10 546fe86 15,709 BC view · diff
git:20260903.29924dd2026-09-03 29924dd 15,721 BC view · diff
git:20260903.fa855c42026-09-03 fa855c4 15,692 BC view

Audit of the latest version

C  15 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No prompt-injection phrasing (matched: ignore previous instructions)
  • fail: No link to a raw IP address (matched: http://169.254.169.254)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (15709 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 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 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_yxlxooe4j7hnxjab
GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/hunt-llm-ai
GET https://markdownregistry.com/api/v1/blob/45194ba67f9282382be51259f5ee21164d72497477f6a8e4c9d52ec3957dd13a

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