mcp-server-playground

The server explicitly addresses security concerns related to Dynamic Application Registration in OAuth by delegating authorization to 3rd party providers (e.g., Auth0) and acting as an OAuth proxy. It uses `helmet` and `express-rate-limit` for basic HTTP security and rate limiting. Input validation is performed using Zod schemas for all tool and prompt arguments. AWS credentials are handled via SSO or environment variables, which is a standard secure practice. JWTs are used for access and refresh tokens. No direct `eval` or obvious code injection vulnerabilities were found. The 'project' tool reads local files, which could be a risk if the `MCP_CONFIG_TOOLS_PROJECT_PATH` could be manipulated by a malicious client or if the server environment is not properly sandboxed, but currently the path is configured via environment variables, limiting immediate exploitability.