show-hn-writer SKILL.md skillA
show-hn-writer from varnan-tech/opendirectory is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add varnan-tech/opendirectory/show-hn-writer@v2.0.0Pins v2.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- varnan-tech/opendirectory
- Path
skills/show-hn-writer/SKILL.md- Versions recorded
- 3
- Latest version
- v2.0.0, committed Sep 16, 2026
- First version recorded
- Apr 14, 2026
- Size
- 11,245 bytes
- Repository stars
- 699
- License
- MIT
Draft a Show HN post backed by real HN performance data. Uses observed patterns from 250 top HN posts to maximise score.
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
# Show HN Writer — Data-Backed Edition This skill drafts HN posts using patterns extracted from 250 real top-ranking posts. Every rule below comes from observed data, not convention. --- ## What the data says (internalize this before writing anything) These are the findings from 250 top HN posts scraped April 18 2026. They override any received wisdom about HN writing. **Title length is the single strongest predictor of score.** - Under 40 chars: avg 248 pts (n=82) - 40–59 chars: avg 192 pts (n=68) - 60–79 chars: avg 150 pts (n=91) - 80+ chars: avg 131 pts (n=9) Default target: under 40 characters. Hard ceiling: 60. **Body text does not affect score.** 90% of posts had no body. With-body avg: 189. Without-body avg: 193. Statistically identical. A body is only worth writing if you have genuinely interesting technical detail that won't fit in a title. Never write a body to pad credibility. **Show HN prefix suppresses score.** Show HN posts averaged 94 pts vs 186+ for plain statements. The label signals "I want feedback on my thing" which triggers a more skeptical read. Only use "Show HN:" when the project is genuinely novel. Always offer a plain-title alternative. …
Read the whole file at its exact version.
How to install
mdr add varnan-tech/opendirectory/show-hn-writer@sha256:90691265bfab310aThe line at the top of this page pins the label v2.0.0, 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_ttkmni657bgqfhir)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Apr 14, 2026 and Sep 16, 2026, about one every 77 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-09-16 | a03d635 | 11,245 B | A | view · diff |
| v2.0.0 | 2026-04-18 | 3b0d660 | 11,302 B | A | view · diff |
| v1.0.0 | 2026-04-14 | cf4acb6 | 10,873 B | B | 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 (11245 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
varnan-tech/opendirectory · 699 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ttkmni657bgqfhir GET https://markdownregistry.com/api/v1/resolve?ref=varnan-tech/opendirectory/show-hn-writer GET https://markdownregistry.com/api/v1/blob/90691265bfab310af8591409d1702fa4674c0e5a55b5dad38506c8b1a3d4d23e
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.