I think MCP servers are valuable in several ways:

- bundled instructions, covering complex iteractions ("use the id from the search here to retrieve a record") for non-standard tools

- custom MCPs, the ones that are firewalled from the internet, for your business apis that no model knows about

- centralized MCP services, http/sse transport. Give the entire team one endpoint (ie web search), control the team's official AI tooling, no api-key proliferation

Now, these trivial `npx ls-mcp` stdio ones, "ls files in any folder" MCPs all over the web are complete context-stuffing bullshit.