{
  "$comment": "schema_version: 1; contract source: skills/behavior-delta-detection/SKILL.md 'Recording decisions'. Written by the ORCHESTRATOR at C4, not by an agent — no control-state union; [] is valid (zero user-visible deltas).",
  "type": "array",
  "items": {
    "type": "object",
    "required": ["delta_type", "location", "resolution_chosen", "source"],
    "properties": {
      "delta_type": { "type": "string" },
      "location": { "type": "string" },
      "resolution_chosen": { "type": "string" },
      "source": {
        "type": "string",
        "enum": [
          "user_question",
          "skill_default",
          "fallback_question",
          "ambiguous_user_answer_recommended",
          "missing_confirmation_safe_default"
        ]
      },
      "user_verbatim_answer": { "type": "string" }
    },
    "additionalProperties": false
  }
}