Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/nirholas/three.ws/ai-plugin-marketplace-guidenpx skills add nirholas/three.ws --skill ai-plugin-marketplace-guidegit clone --depth 1 https://github.com/nirholas/three.wsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/nirholas/three.ws/ai-plugin-marketplace-guide)<a href="https://agentmods.dev/skills/nirholas/three.ws/ai-plugin-marketplace-guide"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/ai-plugin-marketplace-guide.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.01055 |
| Opus 5 | $0.00026 | $0.00528 |
| Sonnet 5 | $0.00010 | $0.00211 |
| Haiku 4.5 | $0.00005 | $0.00105 |
Grade A, and why
ai-plugin-marketplace-guide scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl https://api.plugin.delivery/v1/search?q=defi%20yield&type=mcp-server How it starts
The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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
{
"name": "sperax-defi-tools",
"version": "1.0.0",
"description": "Sperax DeFi tools — USDs yield, SPA staking, portfolio management",
"author": "Sperax",
"license": "MIT",
"type": "mcp-server",
"transport": "stdio",
"command": "npx",
"args": ["@nirholas/mcp-server"],
"tools": [
{ "name": "getUSdsYield", "description": "Get current USDs auto-yield APY" },
{ "name": "getSPAPrice", "description": "Get SPA token price" },
{ "name": "getPortfolio", "description": "Get Sperax portfolio overview" }
],
"categories": ["defi", "crypto", "arbitrum"],
"homepage": "https://app.sperax.io"
}
Publish
# Install CLI
npm install -g @plugin-delivery/cli
# Login
plugin-delivery login
# Publish
plugin-delivery publish ./manifest.json
Discovery
Search
# CLI search
plugin-delivery search "defi yield"
# API search
curl https://api.plugin.delivery/v1/search?q=defi%20yield&type=mcp-server
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 152 lines · 52 tokens per session scan A 4faca8cb7bb3
ai-plugin-marketplace-guide is a skill published in the GitHub repository nirholas/three.ws (111 stars, last pushed today), licensed Apache-2.0. It adds 52 tokens to every session and 1,055 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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