Write Intelligent Contract

Guidance for writing GenLayer intelligent contracts that pass consensus, handle errors correctly, and survive production.

Critical: Pin the Runner Version

All GenLayer networks reject py-genlayer:test, py-genlayer:latest, and unversioned runner aliases. Every generated contract MUST start with a pinned runner dependency header.

# { "Depends": "py-genlayer:1jb45aa8ynh2a9c9xn3b7qqh8sm5q93hwfp7jqmwsfhh8jpz09h6" }

test and latest are local-development aliases for GenLayer runtime developers. They may work only in a specially configured local Studio environment with a GenLayer developer environment variable, but they do not work on GenLayer networks and must not appear in generated user contracts.