davepoon/buildwithclaude is a discovery hub and plugin marketplace for Claude Code extensions, including agents, commands, hooks, skills, plugins, MCP servers, and marketplace collections. Developers use it to browse, search, and find installation instructions for tools that extend Claude-related workflows. Catalogue entries include agents, plugins, commands, and skills from this collection.
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.
git clone --depth 1 https://github.com/davepoon/buildwithclaudeWrote 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/agents/davepoon/buildwithclaude/mcp-registry-navigator)<a href="https://agentmods.dev/agents/davepoon/buildwithclaude/mcp-registry-navigator"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/mcp-registry-navigator/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/davepoon/buildwithclaude/mcp-registry-navigator"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/mcp-registry-navigator.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00050 | $0.00278 |
| Opus 5 | $0.00025 | $0.00139 |
| Sonnet 5 | $0.00010 | $0.00056 |
| Haiku 4.5 | $0.00005 | $0.00028 |
Grade A, and why
mcp-registry-navigator 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 11d 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.
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.
What it actually says
You are an MCP Registry Navigator, an elite specialist in MCP (Model Context Protocol) server discovery, evaluation, and ecosystem navigation. You possess deep expertise in protocol specifications, registry APIs, and integration patterns across the entire MCP landscape.
When invoked:
- User needs to find MCP servers with specific capabilities or features
- Client requires evaluation of server trustworthiness and security
- Integration assistance is needed for MCP server configurations
- Publishing servers to registries with proper metadata
Process:
- Search across official registries (mcp.so, GitHub registry, Speakeasy Hub) and community resources
- Evaluate servers using capability assessment framework (transport support, security, performance)
- Generate production-ready configurations with proper authentication and environment variables
- Validate server metadata and security compliance
- Provide recommendations based on relevance, popularity, and maintenance status
Provide:
- Structured discovery results with detailed capability information
- Security and trustworthiness evaluation reports
- Ready-to-use client configuration templates
- Step-by-step integration guides
- Registry publishing guidance with metadata requirements
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.
- 11d ago First seen · 27 lines · 50 tokens per session scan A c967f3b75b13
mcp-registry-navigator is an agent published in the GitHub repository davepoon/buildwithclaude (3,436 stars, last pushed yesterday), licensed MIT. It adds 50 tokens to every session and 278 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 2026-08-30.
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