{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "sks.core-skill-patch.v1",
  "title": "SKS Core SkillPatch",
  "description": "A bounded add/delete/replace edit to a single Core Skill Card body. Patches only ever edit the one skill document (a section/sentence/paragraph), never code/config/global files, and are bounded by a textual learning-rate budget.",
  "type": "object",
  "required": ["schema", "skill_id", "base_version", "operations", "textual_learning_rate"],
  "additionalProperties": true,
  "properties": {
    "schema": { "const": "sks.core-skill-patch.v1" },
    "skill_id": { "type": "string", "minLength": 1 },
    "base_version": { "type": "integer" },
    "operations": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["op", "target"],
        "additionalProperties": true,
        "properties": {
          "op": { "type": "string", "enum": ["add", "delete", "replace"] },
          "target": { "type": "string" },
          "before": { "type": "string" },
          "after": { "type": "string" },
          "text": { "type": "string" }
        }
      }
    },
    "textual_learning_rate": {
      "type": "object",
      "required": ["max_added_chars", "max_deleted_chars", "max_replaced_chars"],
      "additionalProperties": true,
      "properties": {
        "max_added_chars": { "type": "number" },
        "max_deleted_chars": { "type": "number" },
        "max_replaced_chars": { "type": "number" }
      }
    }
  }
}