using-agent-skills SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 5 indexed copies. Same content hash, so the same checks give both the same grade.
using-agent-skills from addyosmani/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add addyosmani/agent-skills/using-agent-skills@git:20260907.cda4542Pins git:20260907.cda4542 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- addyosmani/agent-skills
- Path
skills/using-agent-skills/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260907.cda4542, committed Sep 7, 2026
- First version recorded
- Jun 22, 2026
- Size
- 10,446 bytes
- Repository stars
- 113,383
- License
- MIT
Discovers and invokes agent skills. Use when starting a session, or when you need to decide which skill or workflow applies to the piece of work at hand. This is the meta-skill that governs how all other skills are discovered and invoked.
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
# Using Agent Skills
## Overview
Agent Skills is a collection of engineering workflow skills organized by development phase. Each skill encodes a specific process that senior engineers follow. This meta-skill helps you discover and apply the right skill for your current task.
## Skill Discovery
When a task arrives, identify the development phase and apply the corresponding skill:
```
Task arrives
│
├── Don't know what you want yet? ──────→ interview-me
├── Have a rough concept, need variants? → idea-refine
├── New project/feature/change? ──→ spec-driven-development
├── No quality bar written down? ──→ constraint-driven-development
├── Have a spec, need tasks? ──────→ planning-and-task-breakdown
├── Implementing code? ────────────→ incremental-implementation
│ ├── UI work? ─────────────────→ frontend-ui-engineering
│ ├── API work? ────────────────→ api-and-interface-design
│ ├── Need better context? ─────→ context-engineering
│ ├── Need doc-verified code? ───→ source-driven-development
│ └── Stakes high / unfamiliar code? ──→ doubt-driven-development
├── Writing/running tests? ────────→ test-driven-development
…Read the whole file at its exact version.
How to install
mdr add addyosmani/agent-skills/using-agent-skills@sha256:30787ef2c77bf1a4The line at the top of this page pins the label git:20260907.cda4542, 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_p7f74i777m2tukrc)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 22, 2026 and Sep 7, 2026, about one every 19 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260907.cda4542 latest | 2026-09-07 | cda4542 | 10,446 B | A | view · diff |
| git:20260828.2ce8d47 | 2026-08-28 | 2ce8d47 | 10,426 B | A | view · diff |
| git:20260808.217feb2 | 2026-08-08 | 217feb2 | 10,420 B | A | view · diff |
| git:20260807.91d4d07 | 2026-08-07 | 91d4d07 | 10,343 B | A | view · diff |
| git:20260622.b89a675 | 2026-06-22 | b89a675 | 10,337 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 (10446 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
addyosmani/agent-skills · 113,383 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_p7f74i777m2tukrc GET https://markdownregistry.com/api/v1/resolve?ref=addyosmani/agent-skills/using-agent-skills GET https://markdownregistry.com/api/v1/blob/30787ef2c77bf1a4729fffed0f6523ba6fcbe81bdc436b36371b78c21394d3c3
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.
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