contagious 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.
contagious from wondelai/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wondelai/skills/contagious@v1.4.0Pins v1.4.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wondelai/skills
- Path
contagious/SKILL.md- Versions recorded
- 5
- Latest version
- v1.4.0, committed Jun 30, 2026
- First version recorded
- Feb 22, 2026
- Size
- 17,762 bytes
- Repository stars
- 2,472
- License
- MIT
Engineer word-of-mouth and virality using the STEPPS framework (Social Currency, Triggers, Emotion, Public, Practical Value, Stories). Use when the user mentions "go viral", "word of mouth", "shareable content", "social currency", "why people share", "referral program", "nobody is sharing it", or "make this spread". Also trigger when designing shareable features, crafting social campaigns, or building products that spread through peer recommendation. Covers environmental triggers and…
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
# Word-of-Mouth & Virality Framework A framework for engineering word-of-mouth and making products, ideas, and content contagious, based on Jonah Berger's research into why things catch on. Use it to design shareability into products, campaigns, and content instead of hoping for luck. ## Core Principle **Virality is not born — it is engineered.** Products spread because they were designed — consciously or not — to be shared. Only 7% of word-of-mouth happens online; the other 93% happens in offline conversations, so virality is about the psychology of sharing, not social media mechanics. Those psychological patterns are predictable and can be engineered into anything using the STEPPS framework. See: [references/word-of-mouth.md](references/word-of-mouth.md) when the brief over-indexes on social media — it makes the offline-vs-online case, lists conversation triggers, and gives a WOM measurement/audit method. ## Scoring **Goal: 10/10.** Score each of the six STEPPS drivers (the six Quick Diagnostic rows) — **0** absent, **1** present but weak, **2** strong and deliberate — for a raw 0-12, then map: 11-12 -> 10, 9-10 -> 8-9, 6-8 -> 6-7, 3-5 -> 4-5, 0-2 -> <=3. Bands: …
Read the whole file at its exact version.
How to install
mdr add wondelai/skills/contagious@sha256:cbebc68767b7e2e2The line at the top of this page pins the label v1.4.0, 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_byn7lhkamtn4cg3p)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Feb 22, 2026 and Jun 30, 2026, about one every 32 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.4.0 latest | 2026-06-30 | 0dea03f | 17,762 B | A | view · diff |
| v1.3.0 | 2026-06-24 | 5356d12 | 17,355 B | A | view · diff |
| v1.2.0 | 2026-06-10 | 968c871 | 17,280 B | A | view · diff |
| v1.1.0 | 2026-04-05 | 4d32253 | 25,561 B | A | view · diff |
| v1.0.1 | 2026-02-22 | ba37181 | 25,366 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 (17762 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
wondelai/skills · 2,472 stars · license MIT · pushed 2026-09-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_byn7lhkamtn4cg3p GET https://markdownregistry.com/api/v1/resolve?ref=wondelai/skills/contagious GET https://markdownregistry.com/api/v1/blob/cbebc68767b7e2e2ec881e7e08dd7241f5e50134368c3867eba2646d8fababbe
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.