{
  "$schema":"https://json-schema.org/draft/2020-12/schema",
  "$id":"https://compo.kluchna24.ru/schemas/compo-creative-engine/v1/web-optimization.schema.json",
  "title":"COMPO web optimization contract v1",
  "type":"object","additionalProperties":false,
  "required":["schema","optimization_id","source_ref","output_ref","source_preserved","format","dimensions","byte_size","policy","provenance"],
  "properties":{
    "schema":{"const":"compo-creative-engine/v1/web-optimization"},
    "optimization_id":{"type":"string","minLength":8},
    "source_ref":{"type":"string","pattern":"^(asset|artifact)://[A-Za-z0-9][A-Za-z0-9_.:/-]{7,255}$"},
    "output_ref":{"type":"string","pattern":"^artifact://[A-Za-z0-9][A-Za-z0-9_.:/-]{7,255}$"},
    "source_preserved":{"const":true},
    "format":{"type":"string","enum":["webp","jpg","png"]},
    "dimensions":{"type":"object","additionalProperties":false,"required":["width","height"],"properties":{"width":{"type":"integer","minimum":1,"maximum":4096},"height":{"type":"integer","minimum":1,"maximum":4096}}},
    "byte_size":{"type":"integer","minimum":1,"maximum":10000000},
    "policy":{"type":"object","additionalProperties":false,"required":["quality","max_bytes","lossy_allowed","overwrite_source"],"properties":{"quality":{"type":"integer","minimum":1,"maximum":100},"max_bytes":{"type":"integer","minimum":1,"maximum":10000000},"lossy_allowed":{"type":"boolean"},"overwrite_source":{"const":false}}},
    "provenance":{"type":"object","additionalProperties":false,"required":["tool_ref","algorithm_version"],"properties":{"tool_ref":{"type":"string","minLength":1},"algorithm_version":{"type":"string","minLength":1},"created_at":{"type":"string","format":"date-time"}}}
  }
}