huytieu/cog-second-brain · .agents/skills/museum-art/SKILL.md

museum-art skillA

museum-art is agent-read markdown (skill) from huytieu/cog-second-brain: Source authentic, high-res PUBLIC-DOMAIN artwork from museum open-access APIs (Met, Cleveland, SMK, Rijksmuseum, NGA, Art Institute of Chicago, Getty, Smithsonian) instead of AI-generated or generic-stock imagery. The default move whenever a visual needs an aesthetic, credible image (blog heroes, decks, social cards, essay/spec figures). Verified keyless recipes + licensing rules inside..

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 huytieu/cog-second-brain/museum-art@git:20260730.acf9b42
Exact content
mdr add huytieu/cog-second-brain/museum-art@sha256:e28fac5dd9682900

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_dikxmnwfvj6nahdz.svg)](https://markdownregistry.com/a/art_dikxmnwfvj6nahdz)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260730.acf9b42 latest2026-07-30 acf9b42 745 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 (745 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

huytieu/cog-second-brain · 1,175 stars · license MIT · pushed 2026-08-25 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dikxmnwfvj6nahdz
GET https://markdownregistry.com/api/v1/resolve?ref=huytieu/cog-second-brain/museum-art
GET https://markdownregistry.com/api/v1/blob/e28fac5dd9682900312b85972b106fd8f903f6b182c67f1621a8cc9fc63fc8ea