{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://unpkg.com/context-room@latest/schemas/codex-prompt-overrides-v1.schema.json",
  "title": "Codex prompt overrides v1",
  "description": "Strict schema for prompt-overrides/overrides.json.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schemaVersion",
    "revision",
    "overrides"
  ],
  "properties": {
    "schemaVersion": {
      "const": 1
    },
    "revision": {
      "type": "integer",
      "minimum": 0,
      "maximum": 9007199254740991
    },
    "overrides": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/override"
      }
    }
  },
  "$defs": {
    "hash": {
      "type": "string",
      "pattern": "^sha256:[0-9a-f]{64}$"
    },
    "patch": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "before",
        "after",
        "expectedMatches"
      ],
      "properties": {
        "before": {
          "type": "string",
          "minLength": 1
        },
        "after": {
          "type": "string"
        },
        "expectedMatches": {
          "const": 1
        }
      }
    },
    "override": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "targetId",
        "patches",
        "replacement"
      ],
      "properties": {
        "targetId": {
          "type": "string",
          "minLength": 1
        },
        "officialHash": {
          "anyOf": [
            {
              "$ref": "#/$defs/hash"
            },
            {
              "type": "null"
            }
          ]
        },
        "patches": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/patch"
          }
        },
        "replacement": {
          "type": [
            "string",
            "null"
          ]
        }
      },
      "allOf": [
        {
          "oneOf": [
            {
              "properties": {
                "patches": {
                  "type": "array",
                  "minItems": 1
                },
                "replacement": {
                  "type": "null"
                }
              }
            },
            {
              "properties": {
                "patches": {
                  "type": "array",
                  "maxItems": 0
                },
                "replacement": {
                  "type": "string"
                }
              }
            }
          ]
        },
        {
          "if": {
            "properties": {
              "targetId": {
                "const": "model/base/*"
              }
            },
            "required": [
              "targetId"
            ]
          },
          "then": {
            "properties": {
              "officialHash": {
                "type": "null"
              },
              "replacement": {
                "type": "null"
              }
            }
          },
          "else": {
            "required": [
              "officialHash"
            ],
            "properties": {
              "officialHash": {
                "$ref": "#/$defs/hash"
              }
            }
          }
        }
      ]
    }
  },
  "$comment": "Each prompt string and every resolved effective prompt is additionally limited to 28672 UTF-8 bytes and approximately 8192 tokens. The runtime also validates the targetId allowlist and unique target IDs."
}