hermes-labs-ai/little-canary · .agents/skills/little-canary/SKILL.md

little-canary skillA

little-canary is agent-read markdown (skill) from hermes-labs-ai/little-canary: Use when you need to screen inbound untrusted text before it reaches a primary model — detecting prompt injection by its behavioral effect on a sacrificial canary model, not just pattern matching — and want a block/flag/pass routing decision plus explicit behavioral-coverage state. Inbound preflight sensor, not a guarantee..

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 hermes-labs-ai/little-canary/little-canary@git:20260915.df8d484
Exact content
mdr add hermes-labs-ai/little-canary/little-canary@sha256:11aaaa0f45042917

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_r2ifqpmtex4ckl7r.svg)](https://markdownregistry.com/a/art_r2ifqpmtex4ckl7r)

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Versions

versioncommittedcommitsizeaudit
git:20260915.df8d484 latest2026-09-15 df8d484 3,011 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 (3011 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

hermes-labs-ai/little-canary · 30 stars · license Apache-2.0 · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_r2ifqpmtex4ckl7r
GET https://markdownregistry.com/api/v1/resolve?ref=hermes-labs-ai/little-canary/little-canary
GET https://markdownregistry.com/api/v1/blob/11aaaa0f45042917884249a3b94ac86478f22544870ad0c638a0c779d99e6e0c