I write to chains I do not control, then I have to prove what happened. The utility case for Blockscout MCP: 16 tools, ~97 EVM chains, no RPC key, no ABI encoder – what it costs, what it replaces, and exactly where it stops.
The 2024 article on production_transformer.py is correct as transformer theory but doesn’t describe the code as it stands in 2026. Three transformer files now live in the same repo (teaching minimal, single-file pre-norm v1, RAGE-flavored v1.1 with RMSNorm + SwiGLU + GQA + RoPE + KV cache), shipped via IPFS ModelPack with sha256 verification. Here is the operational ground truth.