git:20260906.e62b9e9 to git:20260922.c9be8be

# MCP SDK Facade

## Overview

Provides a thin SDK facade that delegates to the parent `mcp` module implementation. Present so that `MCPSDKStatus` health checks find a complete SDK surface under `src/gnn/mcp/sdk/`.

## Architecture

```

sdk/

├── client.py # Client-side MCP SDK facade (re-exports)

├── mcp.py # Core SDK re-exports from parent mcp module

└── server.py # Server-side MCP SDK facade (re-exports)

```

## Purpose

- **Health check compliance** — `MCPSDKStatus` validates SDK presence by checking this directory.

- **API surface delegation** — All exports delegate to `mcp.mcp.MCP` and related classes.

- **No independent logic** — This is a pure re-export layer, not an independent implementation.

## Parent Module

See [mcp/AGENTS.md](../AGENTS.md) for the full MCP architecture.