viral-product-evaluator SKILL.md skillA
viral-product-evaluator from luongnv89/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add luongnv89/skills/viral-product-evaluator@v1.7.0Pins v1.7.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- luongnv89/skills
- Path
skills/viral-product-evaluator/SKILL.md- Versions recorded
- 5
- Latest version
- v1.7.0, committed Oct 7, 2026
- First version recorded
- Sep 26, 2026
- Size
- 11,147 bytes
- Repository stars
- 133
- License
- MIT
Review a product codebase and landing page against 32 viral principles and produce a Virality Score plus ranked fixes. Use to audit virality or prioritize growth. Don't use for SEO, ASO, copywriting, or code review.
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
# Viral Product Evaluator Grade a product against the 32 principles of viral products. Two inputs — a **codebase** and a **landing page** — produce one output: a scored report of **what's already satisfied** and, in **priority order, what to do next to make it more viral**. ## When to Use Trigger when the user wants to: - Make a product, SaaS, or indie app "more viral" or more shareable - Score / audit a landing page against viral-marketing or conversion principles - Get a prioritized, ordered list of changes to improve a product's pull Do **not** use for: technical SEO (`seo-ai-optimizer`), App Store ASO (`aso-marketing`), turning a README into a page (`landing-page-generator`), or bug-hunting code review (`code-review`). ## Prerequisites - Read access to the target codebase directory. - Landing page signal: public URL, local file, auto-detectable in the tree, or an orchestrator's `evidence-dir`. - The skill's `references/*.md` files present. Missing prerequisites after the one ask in Edge cases → stop with a BLOCKED response (`references/final-report.md`) before gathering evidence. ## What this skill does and does not touch …
Read the whole file at its exact version.
How to install
mdr add luongnv89/skills/viral-product-evaluator@sha256:c77a9c4237060596The line at the top of this page pins the label v1.7.0, 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_j4enupfcevj42s64)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Sep 26, 2026 and Oct 7, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.7.0 latest | 2026-10-07 | c345109 | 11,147 B | A | view · diff |
| v1.6.0 | 2026-10-06 | 66b5ccf | 10,583 B | A | view · diff |
| v1.5.0 | 2026-09-26 | f2d2eb9 | 10,160 B | A | view · diff |
| v1.4.1 | 2026-09-26 | 15e4e09 | 10,060 B | A | view · diff |
| v1.4.0 | 2026-09-26 | bc2cd09 | 10,104 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 (11147 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
luongnv89/skills · 133 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_j4enupfcevj42s64 GET https://markdownregistry.com/api/v1/resolve?ref=luongnv89/skills/viral-product-evaluator GET https://markdownregistry.com/api/v1/blob/c77a9c423706059633f3bffba9dac8937c961fda89abdcb16a3d718708be6e6e
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.