Developer Critiques MCP Spec: Overcomplicated JSON-RPC?
PaulMorel · reddit · 2026-09-01
A developer who spent weeks implementing the MCP spec questions its utility, calling it "AI slop". Key criticisms:
- The spec boils down to little more than using -rpc
- Requires a heavy client with custom business logic to act as a translator
- Lacks details on triggering actions, leaving implementers to figure it out
The author asks if they are missing something fundamental.
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