{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://reuse-surface.local/schemas/plan-check-rerank.schema.json",
  "title": "PlanCheckRerankResponse",
  "description": "T03 LLM rerank response. The model may only score/reorder candidate IDs it was given -- it must not invent new ones. plan_check.py enforces that separately from this schema (schema can't see the input candidate set).",
  "type": "object",
  "additionalProperties": false,
  "required": ["candidates"],
  "properties": {
    "candidates": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["id", "confidence"],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^capability\\.[a-z0-9]+(\\.[a-z0-9-]+)+$"
          },
          "confidence": {"type": "number", "minimum": 0, "maximum": 1},
          "rationale": {"type": "string"}
        }
      }
    }
  }
}