ns-mcp-shield
Installation
SKILL.md
MCP Shield — Secure MCP Server Development
MCP servers bridge AI assistants and external tools/data. They often run with delegated user permissions, have dynamic tool-based architectures, and let the model chain tool calls — so one vulnerability has amplified impact. Apply these controls from architecture through production.
When to use
| Request | This skill | Use instead |
|---|---|---|
| Design / harden an MCP server | Yes | — |
| Add or review MCP tool schemas / descriptions | Yes | — |
| MCP OAuth 2.1 / OIDC / token delegation | Yes | — |
| Security review / threat model of MCP code | Yes | — |
| Generic CSP / security headers / web a11y | No | ns-best-practices |
| MR SOLID / maintainability review | No | ns-reviewer |
| LangGraph / crew topology ADR | No | ns-agent-architecture |