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There is a standard graph syntax: Graphviz DOT notation.

• jayd16 2y ago
  I'm not familiar with this but it seems more geared towards visually representing flow charts but it doesn't have the necessary verbosity for visual scripting. I might be wrong but I think this is only part of the puzzle. Can rules be defined such that, for example, a node port must be pointed to, or that a default value is available? Besides the declaration of a graph, there also needs to be a way to define semantics, ie something akin to a Language Server Protocol. That way tooling can enforce validity while editing a graph.
  • wizzwizz4 2y ago
    DOT is not a schema language, no. It sounds like you're trying to make something new, in which case: I'd forego standardisation concerns for now, and focus on getting something that works, and where future prototyping can be backwards-compatible.