Is there a way to optionally disable the GItHub MCP?

Although I love the GitHub MCP, it adds a lot of tokens to the initial context window. In my orchestration layer I'm using progressive tool discovery so I'm wondering if I can initially disable the GH MCP (like we can when passing --disable-builtin-mcps to the CLI)? As far as I've seen there's nothing like that in client.ts yet, so I'd be happy to create a PR if it had a chance to be accepted