{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "binding_id": {
      "anyOf": [
        {
          "pattern": "^bind_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "capability_invocation_id": {
      "pattern": "^cap_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    },
    "fallback_used": {
      "type": "boolean"
    },
    "finished_at": {
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z))$",
      "type": "string"
    },
    "outcome": {
      "enum": [
        "completed",
        "denied",
        "failed"
      ],
      "type": "string"
    },
    "output": {
      "anyOf": [
        {
          "oneOf": [
            {
              "properties": {
                "json": {},
                "kind": {
                  "const": "inline",
                  "type": "string"
                }
              },
              "required": [
                "kind",
                "json"
              ],
              "type": "object"
            },
            {
              "properties": {
                "kind": {
                  "const": "evidence",
                  "type": "string"
                },
                "sha256": {
                  "pattern": "^[0-9a-f]{64}$",
                  "type": "string"
                },
                "size_bytes": {
                  "maximum": 9007199254740991,
                  "minimum": 0,
                  "type": "integer"
                },
                "uri": {
                  "type": "string"
                }
              },
              "required": [
                "uri",
                "sha256",
                "size_bytes",
                "kind"
              ],
              "type": "object"
            }
          ]
        },
        {
          "type": "null"
        }
      ]
    },
    "product_id": {
      "pattern": "^prod_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    },
    "provider": {
      "type": [
        "string",
        "null"
      ]
    },
    "reason": {
      "anyOf": [
        {
          "enum": [
            "outside_contract",
            "permission_denied",
            "policy_blocked",
            "binding_missing",
            "binding_revoked",
            "usage_denied",
            "provider_unavailable",
            "provider_rejected",
            "output_blocked"
          ],
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "usage": {
      "properties": {
        "unit": {
          "enum": [
            "tokens",
            "ms",
            "calls",
            "bytes"
          ],
          "type": "string"
        },
        "units": {
          "minimum": 0,
          "type": "number"
        }
      },
      "required": [
        "units",
        "unit"
      ],
      "type": "object"
    },
    "workspace_id": {
      "pattern": "^ws_[0-7][0123456789abcdefghjkmnpqrstvwxyz]{25}$",
      "type": "string"
    }
  },
  "required": [
    "capability_invocation_id",
    "workspace_id",
    "product_id",
    "outcome",
    "reason",
    "output",
    "provider",
    "fallback_used",
    "usage",
    "finished_at"
  ],
  "type": "object"
}