For AI agents: the docs index is at https://substation.readme.io/v0.8.4/llms.txt. Append .md to any documentation page URL to get its markdown version.
Substation uses GJSON for modifying objects. GJSON's syntax is fully supported by the system and should be used as the basis for all object modification. If you want to learn how GJSON works, then we recommend using gjson.dev.