Borrowing it
Nothing to install: this file belongs to enuno/unifi-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/enuno/unifi-mcp-server/main/.agents/skills/fastmcp/SKILL.mdgit clone --depth 1 https://github.com/enuno/unifi-mcp-serverWrote 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/enuno/unifi-mcp-server/fastmcp)<a href="https://agentmods.dev/skills/enuno/unifi-mcp-server/fastmcp"><img src="https://agentmods.dev/badge/skills/enuno/unifi-mcp-server/fastmcp/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/skills/enuno/unifi-mcp-server/fastmcp"><img src="https://agentmods.dev/badge/skills/enuno/unifi-mcp-server/fastmcp.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 | $0.00048 | $0.11925 |
| Opus 5 | $0.00024 | $0.05962 |
| Sonnet 5 | $0.00010 | $0.02385 |
| Haiku 4.5 | $0.00005 | $0.01192 |
Grade A, and why
FastMCP Development 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
return requests.get(url).text # Blocks event loop! How it starts
The opening of the file, as written. The whole thing — 1,865 lines — stays where its author put it; the contents beside it link to each section on GitHub.
- Determine server purpose and required components (tools, resources, prompts)
Ask: What functionality does this MCP server provide? What external systems will it integrate with?
- Create FastMCP server file with basic structure
Use Quick Start template below. Choose Python or TypeScript based on project requirements.
- Implement tools for LLM-executable functions
Follow Tools section. Include type hints/annotations, validation, error handling.
- Add resources if data access needed
Follow Resources section. Use URI templates for dynamic resources. Include security validation.
- Add prompts if workflow guidance needed
Follow Prompts section. Use for multi-step workflows, best practices, templates.
- Configure Codex Desktop integration
Follow Codex Desktop Integration section. Use fastmcp CLI or manual config. Handle environment variables.
- Test server locally
Run server in STDIO mode. Test with FastMCP client or Codex Desktop locally.
- Add authentication for production
Follow Authentication section. Use OAuth for enterprise, token verification for custom auth.
- Deploy using appropriate transport
STDIO for local tools, HTTP/SSE for network access. Follow Deployment section.
- Verify integration end-to-end
Test in Codex Desktop. Verify tools appear, resources load, prompts work.
When to Use This Skill
Use this skill when:
- Creating new MCP servers with FastMCP
- Adding tools, resources, or prompts to existing servers
- Integrating MCP servers with Codex Desktop
- Implementing authentication for production MCP servers
- Deploying MCP servers via STDIO, HTTP, or SSE transports
- Migrating from FastMCP v2 to v3
- Creating custom domain-specific MCP integrations
Do NOT use this skill when:
- Building MCP servers in languages other than Python or TypeScript (use official SDK)
- You need maximum control over MCP protocol implementation (use official SDK)
- Creating simple command-line tools without LLM integration (FastMCP is overkill)
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 1,865 lines · 48 tokens per session scan A 8b31e7fe015f
FastMCP Development is a skill published in the GitHub repository enuno/unifi-mcp-server (247 stars, last pushed 4d ago), licensed Apache-2.0. It adds 48 tokens to every session and 11,925 once invoked, about $0.0002 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 2026-08-30.
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