ai-plugin-marketplace-guide SKILL.md skillA
ai-plugin-marketplace-guide from nirholas/three.ws is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nirholas/three.ws/ai-plugin-marketplace-guide@git:20260501.87cefc9Pins git:20260501.87cefc9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nirholas/three.ws
- Path
data/skills/development/ai-plugin-marketplace-guide/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260501.87cefc9, committed May 1, 2026
- Size
- 4,202 bytes
- Repository stars
- 269
- License
- Apache-2.0
Guide to plugin.delivery — a marketplace and delivery infrastructure for AI plugins and MCP servers. Covers plugin discovery, version management, secure distribution, and integration with Claude Desktop, Cursor, and SperaxOS. The npm for AI tools.
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
# plugin.delivery — AI Plugin Marketplace Guide
plugin.delivery is the marketplace and delivery infrastructure for AI plugins and MCP servers. Discover, install, and manage AI tools — like npm for AI.
## What Is plugin.delivery?
```
Developers Users
│ │
▼ ▼
Publish Plugin ──→ plugin.delivery ──→ Install Plugin
│ │ │
├── MCP Servers ├── Search ├── Claude Desktop
├── OpenAI Plugins ├── Reviews ├── Cursor
├── Tool Manifests ├── Versions ├── SperaxOS
└── API Specs └── Security Scan └── Any MCP Host
```
## Plugin Types
| Type | Format | Compatible With |
|------|--------|----------------|
| **MCP Server** | MCP protocol | Claude, Cursor, SperaxOS |
| **OpenAI Plugin** | OpenAI manifest | ChatGPT, compatible clients |
| **Tool Manifest** | JSON Schema | Any agent framework |
| **API Spec** | OpenAPI 3.x | REST clients, code gen |
## Publishing
### Create Plugin Manifest
```json
{
"name": "sperax-defi-tools",
"version": "1.0.0",
…Read the whole file at its exact version.
How to install
mdr add nirholas/three.ws/ai-plugin-marketplace-guide@sha256:4faca8cb7bb3889cThe line at the top of this page pins the label git:20260501.87cefc9, 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_4islp3ldvndcbohk)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 1, 2026.
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 (4202 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
nirholas/three.ws · 269 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4islp3ldvndcbohk GET https://markdownregistry.com/api/v1/resolve?ref=nirholas/three.ws/ai-plugin-marketplace-guide GET https://markdownregistry.com/api/v1/blob/4faca8cb7bb3889c965dc6102b25e1d34bb8c5a3f675dbb65bdf824c6b70019f
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.