mcpsnoop-mcp-debugging

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

• Third-party content exposure detected (high risk: 0.75). mcpsnoop is a proxy that captures live MCP JSON-RPC frames (including arbitrary free-text payloads from the connected MCP server/client) and displays them in its TUI/logs; those captured payloads can include outsider-authored text from the MCP server’s responses/notifications, which the user may then copy/replay into the agent context.