write-skills SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 3 indexed copies. Same content hash, so the same checks give both the same grade.
write-skills from dzhng/duet-agent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dzhng/duet-agent/write-skills@git:20261012.28d8777Pins git:20261012.28d8777 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dzhng/duet-agent
- Path
.agents/skills/write-skills/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261012.28d8777, committed Oct 12, 2026
- First version recorded
- Jul 17, 2026
- Size
- 10,877 bytes
- Repository stars
- 50
- License
- Apache-2.0
Create or revise agent skills. Use when adding a new skill file, renaming a skill, simplifying an existing skill, improving trigger descriptions, or deciding what belongs in a skill versus references, scripts, assets, or ordinary docs.
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
# Write Skills A skill is not documentation. It is compressed operational memory for an agent that already knows how to code and reason. Its job is **predictability** — the agent taking the same *process* every run, not producing the same output. Put only the context that changes what the agent will do. ## First Principles 1. **Trigger from the description.** The frontmatter `description` is the only part read before the skill loads. Say what the skill does and the concrete situations that should trigger it. Do not hide trigger rules in the body. 2. **Spend tokens like they are scarce.** Assume the agent is already good at general reasoning. State the direction and let smart models figure out implementation details. A wrapper skill can be two sentences: name the capability to use and the skill to follow. Add mechanics only when a demonstrated failure requires them. 3. **Write procedures, not essays.** Prefer imperative rules, decision points, and small examples. A good skill changes behavior in the next turn; it does not merely explain the topic. And match the procedure to the deliverable's shape: a catalog of techniques with "pick what fits" …
Read the whole file at its exact version.
How to install
mdr add dzhng/duet-agent/write-skills@sha256:3bacf02ad5bf749eThe line at the top of this page pins the label git:20261012.28d8777, 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_72wnyus6c62pn2vg)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 17, 2026 and Oct 12, 2026, about one every 43 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261012.28d8777 latest | 2026-10-12 | 28d8777 | 10,877 B | A | view · diff |
| git:20261002.7680dea | 2026-10-02 | 7680dea | 10,800 B | A | view · diff |
| git:20260717.934babf | 2026-07-17 | 934babf | 10,558 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 (10877 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
dzhng/duet-agent · 50 stars · license Apache-2.0 · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_72wnyus6c62pn2vg GET https://markdownregistry.com/api/v1/resolve?ref=dzhng/duet-agent/write-skills GET https://markdownregistry.com/api/v1/blob/3bacf02ad5bf749ef274958d234a96673e5aa59e03ed250dd3919cafc4e24e17
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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