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An image is not a sentence: a VLM's description of one is unvalidated prose. VSON makes every claim about an image — object, property, spatial relation, action — a graph assertion SHACL can reject, so a build can fail on it. Rust CLI, Python API, MCP server, keyless browser studio. It checks the graph, not the picture.

  • Updated Aug 5, 2026
  • Python

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