skill-authoring SKILL.md skillA
skill-authoring from jeong-sik/masc is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jeong-sik/masc/skill-authoring@git:20261106.f8ac446Pins git:20261106.f8ac446 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jeong-sik/masc
- Path
skills/skill-authoring/SKILL.md- Versions recorded
- 13
- Latest version
- git:20261106.f8ac446, committed Nov 6, 2026
- First version recorded
- Sep 15, 2026
- Size
- 12,584 bytes
- Repository stars
- 5
- License
- MIT
Decides whether recurring work belongs in a Tool, a composition Skill, an instruction Skill or nowhere, and writes a SKILL.md that the MASC parser admits and a Keeper picks at the right moment. Use when creating or changing a MASC Skill from the TUI Tools screen, the Dashboard Skill Studio or a skills source directory, and when a Skill is not being used or its composition fails to load.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Skill authoring ## 1. Decide where the work belongs | What is needed | Where it goes | |---|---| | A capability that does not exist yet, a schema, permission or typed error contract, or a call to an outside system | A Tool | | A fixed chain of tool calls with no judgement between the steps | A composition Skill | | A judgement at a fork, a known trap, or an order of steps that needs reading | An instruction Skill | | Something the runtime already puts in the turn's first request (the current time arrives there as `[Temporal]`; a request after tool results does not repeat it) | Nothing | | A procedure that steps around a tool or harness defect | No Skill. Fix the defect | A Skill that works around a defect turns the defect into the documented way of working, and the next author copies it. Fix the tool instead. Prefer the direct tool for one call. A one-node composition can be useful when it defines a reusable parameter or selected-output contract; make that contract explicit instead of adding a wrapper with the same inputs and full result. ## 2. Instruction or composition Write a **composition** when its inputs and dependencies can be declared as …
Read the whole file at its exact version.
How to install
mdr add jeong-sik/masc/skill-authoring@sha256:4243b2bab46629adThe line at the top of this page pins the label git:20261106.f8ac446, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_yv2smjwm6jw73abu)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 13 versions of this file, between Sep 15, 2026 and Nov 6, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261106.f8ac446 latest | 2026-11-06 | f8ac446 | 12,584 B | A | view · diff |
| git:20261106.953a3f1 | 2026-11-06 | 953a3f1 | 12,703 B | A | view · diff |
| git:20261105.c8678e0 | 2026-11-05 | c8678e0 | 12,703 B | A | view · diff |
| git:20261101.6ba88c6 | 2026-11-01 | 6ba88c6 | 12,696 B | A | view · diff |
| git:20261024.30ee359 | 2026-10-24 | 30ee359 | 11,950 B | A | view · diff |
| git:20261016.71d37b4 | 2026-10-16 | 71d37b4 | 10,338 B | A | view · diff |
| git:20261016.6ca9058 | 2026-10-16 | 6ca9058 | 9,624 B | A | view · diff |
| git:20260924.2e9e87a | 2026-09-24 | 2e9e87a | 7,621 B | A | view · diff |
| git:20260923.43674bc | 2026-09-23 | 43674bc | 7,330 B | A | view · diff |
| git:20260920.9b06b42 | 2026-09-20 | 9b06b42 | 6,786 B | A | view · diff |
| git:20260915.d41bc55 | 2026-09-15 | d41bc55 | 6,315 B | A | view · diff |
| git:20260915.355586f | 2026-09-15 | 355586f | 6,249 B | A | view · diff |
| git:20260915.1b5578d | 2026-09-15 | 1b5578d | 6,058 B | A | view |
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 (12584 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
jeong-sik/masc · 5 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yv2smjwm6jw73abu GET https://markdownregistry.com/api/v1/resolve?ref=jeong-sik/masc/skill-authoring GET https://markdownregistry.com/api/v1/blob/4243b2bab46629adade6b9324dd3c15435b96869a8ce2ca897d06546f97b53d7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.