oaustegard/claude-skills · plugins/skill-development/skills/crafting-instructions/SKILL.md

crafting-instructions skillA

crafting-instructions is agent-read markdown (skill) from oaustegard/claude-skills: Chooses the right FORMAT for instructions on Claude.ai — project instructions, a skill, or a standalone prompt — and gives the format-specific structure once chosen. Use when the question is which container an instruction belongs in ("should this be a skill or project instructions", "where do I put this", "how do I set up this project", "is this worth a skill"), or when someone has instructions and does not know how to package them. For the writing principles that apply inside any of the three f.

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 oaustegard/claude-skills/crafting-instructions@v0.5.0
Exact content
mdr add oaustegard/claude-skills/crafting-instructions@sha256:e11110cb7cc04df7

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_idpadocqhgotukgs.svg)](https://markdownregistry.com/a/art_idpadocqhgotukgs)

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Versions

versioncommittedcommitsizeaudit
v0.5.0 latest2026-09-09 5e58100 10,561 BA view · diff
v0.4.02026-08-25 955c1d2 11,960 BA view · diff
v0.3.12026-07-07 6154d36 11,029 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 (10561 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

oaustegard/claude-skills · 148 stars · license MIT · pushed 2026-09-09 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_idpadocqhgotukgs
GET https://markdownregistry.com/api/v1/resolve?ref=oaustegard/claude-skills/crafting-instructions
GET https://markdownregistry.com/api/v1/blob/e11110cb7cc04df7da7ca406f07afd66b64f6a85e5dcafe26d06e5ebc6b5d81e