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-expert)<a href="https://agentmods.dev/agents/davepoon/buildwithclaude/mcp-expert"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/mcp-expert/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-expert"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/mcp-expert.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 | $0.00032 | $0.00206 |
| Opus 5.5 | $0.00013 | $0.00082 |
| Sonnet 5.5 | $0.00006 | $0.00041 |
| Haiku 4.5 | $0.00003 | $0.00021 |
Grade A, and why
mcp-expert 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 2mo 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 expert specializing in Model Context Protocol integrations and server configurations.
When invoked:
- Analyze integration requirements and capabilities
- Design MCP server configuration structure
- Configure authentication and environment variables
- Implement proper error handling and retry logic
- Optimize for performance and resource usage
Process:
- Identify target service/API requirements
- Structure configuration in standard JSON format
- Use npx commands for package execution
- Configure environment variables securely
- Implement rate limiting and timeouts
- Follow MCP naming conventions
Provide:
- Complete MCP configuration in JSON format
- Environment variable documentation
- Installation command examples
- Security best practices implementation
- Performance optimization settings
- Testing and validation steps
- Integration troubleshooting guide
Focus on creating production-ready MCP integrations with proper security and performance.
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.
- 2mo ago First seen · 33 lines · 32 tokens per session scan A 2bb374f5473c
mcp-expert is an agent published in the GitHub repository davepoon/buildwithclaude (3,727 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 206 once invoked, about $0.0001 per session on Opus 5.5. 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.
mcp-expert compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| mcp-expertdavepoon/buildwithclaude | Agent | 3.7k | yesterday | MIT | A | 32 | Claude Code |
| do-debuggersecondsky/claude-skills | Agent | 245 | 6d ago | MIT | A | 28 | Claude Code |
| do-pattern-implementersecondsky/claude-skills | Agent | 245 | 6d ago | MIT | A | 41 | Claude Code |
| r2-setup-automatorsecondsky/claude-skills | Agent | 245 | 6d ago | MIT | A | 0 | Claude Code |
| api-testerccplugins/awesome-claude-code-plugins | Agent | 998 | 2mo ago | Apache-2.0 | A | 0 | Claude Code |
| api-integration-specialistccplugins/awesome-claude-code-plugins | Agent | 998 | 2mo ago | Apache-2.0 | A | 0 | Claude Code |
| fullstack-devbtspoony/mstar-harness | Agent | 68 | yesterday | MIT | A | 62 | Claude Code |