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/mcp-tool-discovery-guidenpx skills add nirholas/three.ws --skill mcp-tool-discovery-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/mcp-tool-discovery-guide)<a href="https://agentmods.dev/skills/nirholas/three.ws/mcp-tool-discovery-guide"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/mcp-tool-discovery-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 | $0.00059 | $0.00985 |
| Opus 5 | $0.00030 | $0.00492 |
| Sonnet 5 | $0.00012 | $0.00197 |
| Haiku 4.5 | $0.00006 | $0.00098 |
Grade A, and why
mcp-tool-discovery-guide scanned grade A with 0 findings 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 yesterday.
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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCP Tool Discovery Guide
Lyra Tool Discovery is an AI-powered toolkit that automatically discovers MCP servers from GitHub, npm, and custom sources. It analyzes APIs and generates ready-to-use plugin configurations.
How It Works
Discovery Sources
├── GitHub (repo search, topics, stars)
├── npm (package search, mcp keyword)
├── MCP Registry (official)
└── Custom sources (your URLs)
│
▼
AI Analysis (GPT or Claude)
├── Analyze repo README
├── Detect API surface
├── Extract tool signatures
└── Score quality & relevance
│
▼
Output
├── claude_desktop_config.json
├── cursor settings
├── Plugin manifests
└── Integration guides
Quick Start
# Install
npm install -g lyra-tool-discovery
# Discover crypto MCP servers
lyra-discover --topic crypto --min-stars 5
# Discover from specific GitHub user
lyra-discover --github nirholas
# Discover from npm
lyra-discover --npm "mcp server" --category defi
Discovery Modes
GitHub Discovery
# Search by topic
lyra-discover --github-topic "mcp,crypto"
# Search by org
lyra-discover --github-org "nirholas"
# Search recently updated
lyra-discover --github-topic mcp --sort updated --since 7d
npm Discovery
# Search by keyword
lyra-discover --npm "mcp-server"
# Filter by weekly downloads
lyra-discover --npm mcp --min-downloads 100
Registry Discovery
# Pull from official MCP registry
lyra-discover --registry
# Filter by category
lyra-discover --registry --category "finance"
AI Analysis
For each discovered server, the AI analyzes:
| Aspect | What's Checked |
|---|---|
| Quality | Documentation, tests, CI, TypeScript types |
| Security | Dependencies, practices, known vulnerabilities |
| Compatibility | MCP version, transport type (stdio/SSE) |
| Functionality | Number of tools, tool descriptions |
| Relevance | Match to your search criteria |
Output Formats
Claude Desktop Config
{
"mcpServers": {
"sperax-crypto": {
"command": "npx",
"args": ["@nirholas/sperax-crypto-mcp"]
},
"binance": {
"command": "npx",
"args": ["@nirholas/binance-mcp"]
}
}
}
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.
- yesterday First seen · 157 lines · 59 tokens per session scan A f2f671ead34a
mcp-tool-discovery-guide is a skill published in the GitHub repository nirholas/three.ws (110 stars, last pushed today), licensed Apache-2.0. It adds 59 tokens to every session and 985 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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