kerckhoffs-principle skillA
kerckhoffs-principle is agent-read markdown (skill) from the-artificer-of-ciphers-llc/skills-from-the-artificer: Apply Kerckhoffs's Principle when reviewing security designs, authentication systems, encryption implementations, or any situation where someone relies on keeping an algorithm, method, or system architecture secret for security. Trigger on phrases like "security through obscurity", "we keep the algorithm secret", "don't publish how this works", "our system is secure because nobody knows about it", or any security discussion where the secrecy of the design—rather than the secrecy of a key—is the .
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
mdr add the-artificer-of-ciphers-llc/skills-from-the-artificer/kerckhoffs-principle@git:20260530.3e17152mdr add the-artificer-of-ciphers-llc/skills-from-the-artificer/kerckhoffs-principle@sha256:bf7a3b61126bf531Pin 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.
[](https://markdownregistry.com/a/art_wiyj7m2kqlrzhftv)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4026 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
the-artificer-of-ciphers-llc/skills-from-the-artificer · 4 stars · license MIT · pushed 2026-09-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wiyj7m2kqlrzhftv GET https://markdownregistry.com/api/v1/resolve?ref=the-artificer-of-ciphers-llc/skills-from-the-artificer/kerckhoffs-principle GET https://markdownregistry.com/api/v1/blob/bf7a3b61126bf531a2a766f64b7f768e4921199eb3c7721278702335b6460246
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.