writing-skills SKILL.md skillA
writing-skills from ganyuanran/aegis is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ganyuanran/aegis/writing-skills@git:20260920.8265b5cPins git:20260920.8265b5c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ganyuanran/aegis
- Path
skills/writing-skills/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260920.8265b5c, committed Sep 20, 2026
- First version recorded
- Jun 8, 2026
- Size
- 5,315 bytes
- Repository stars
- 1,417
- License
- MIT
Use when creating new skills, editing existing skills, or verifying skills work before deployment.
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
# Writing Skills ## Purpose Create the smallest reusable skill that changes decisions or improves task execution without constraining unrelated work. Skill changes use behavior validation, not a code TDD route. This validation does not require loading `aegis:test-driven-development`. ## Default Path ### 1. Establish Need And Ownership - Name the reusable behavior gap, intended users/hosts, and non-goals. - Check whether an existing skill, project rule, host adapter, or automated check already owns it. Prefer the smallest existing owner. - For an existing skill, inspect its references, manifests or generated copies, discovery tests, and bundled resources before changing or retiring them. - Create a skill only for reusable, non-obvious guidance. Keep one-off project conventions in the project owner and automate mechanical constraints when practical. ### 2. Record Behavior Before Editing Use representative tasks, not questions that merely ask the agent to recite instructions. - New skill: run a no-skill control. - For an existing skill, run the current version first; add a no-skill ablation only when testing whether the skill itself needs to exist. …
Read the whole file at its exact version.
How to install
mdr add ganyuanran/aegis/writing-skills@sha256:9e74b7e83faacbd2The line at the top of this page pins the label git:20260920.8265b5c, 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_ydfe33qdip3xgkom)
7 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 8, 2026 and Sep 20, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260920.8265b5c latest | 2026-09-20 | 8265b5c | 5,315 B | A | view · diff |
| git:20260723.88b8ec9 | 2026-07-23 | 88b8ec9 | 23,157 B | A | view · diff |
| git:20260712.f910260 | 2026-07-12 | f910260 | 23,155 B | A | view · diff |
| git:20260620.e62b2ad | 2026-06-20 | e62b2ad | 23,195 B | A | view · diff |
| git:20260608.cb4baee | 2026-06-08 | cb4baee | 23,140 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 (5315 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
ganyuanran/aegis · 1,417 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ydfe33qdip3xgkom GET https://markdownregistry.com/api/v1/resolve?ref=ganyuanran/aegis/writing-skills GET https://markdownregistry.com/api/v1/blob/9e74b7e83faacbd21079eb267bbc20109b0c741180a7dd3780d2bc6e83299604
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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