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A critical look at MCP (raz.sh)

623 points by ablekh · 447 days ago · 336 comments on HN

Article summary

The article critiques the Model Control Protocol (MCP), a protocol for exposing remote functions to a caller in an interrogable manner. The discussion reveals that the article argues MCP has design flaws and is not better than existing solutions like OpenAPI. The protocol's complexity and potential for abuse are also concerns. The article's critique is based on the protocol's deviation from standard practices and its potential to create problems for developers and users.

Main themes

  • MCP protocol design
  • comparison to OpenAPI
  • protocol complexity
  • network effects
  • AI market dynamics
  • protocol adoption and implementation
  • critique of MCP design and usage

What commenters say

  • MCP is not an improvement over existing protocols like OpenAPI and may even be more complex and problematic.
  • The protocol's design allows for dynamic tool usage, but this may not be a significant advantage over static specs.
  • The use of MCP may be driven by network effects and the desire for a widely adopted standard, rather than its technical merits.
  • The protocol's complexity and lack of transparency make it difficult to implement, audit, and debug.
  • Some argue that MCP is a moat to keep small players out of the AI market, while others see it as a flawed but widely adopted standard.
  • The development of MCP and its adoption may be a result of the speed at which the LLM field is evolving, with developers and companies prioritizing quick solutions over well-designed and well-tested protocols.
  • The protocol's simplicity is debated, with some arguing it is easy to implement and others pointing out its underlying complexity and potential for abuse.