{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:corpus-task-pack-step.request:v1",
  "title": "Corpus Task-Pack Step Request v1",
  "description": "A step a task pack's Flow takes in one Corpus query (P094-023d1), through a corpus.task-pack.* host capability. The context is typed. A participant step names the exact turn, Agent and Corpus inference-Flow binding it acts in: evidence preparation, candidate publication and proposal authoring in the Implementer's turn, review authoring in the Reviewer's. A coordinator step acts for the round: reading the position and admitting a closed chain. The request is the operation's own document, checked under its own contract. The Flow grants no role, opens no turn and creates no binding; the host checks every step against current facts and the role it needs.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-status": "draft",
  "required": [
    "schema",
    "query/id",
    "context"
  ],
  "properties": {
    "schema": {
      "const": "corpus-task-pack-step.request.v1"
    },
    "query/id": {
      "type": "string",
      "pattern": "^query:[^\\s]+$",
      "maxLength": 512
    },
    "context": {
      "oneOf": [
        {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "kind",
            "turn/id",
            "agent/id",
            "inference-flow-binding/ref"
          ],
          "properties": {
            "kind": {
              "const": "participant"
            },
            "turn/id": {
              "type": "string",
              "pattern": "^corpus-turn:sha256:[A-Za-z0-9_-]{43}$"
            },
            "agent/id": {
              "type": "string",
              "pattern": "^agent:[^\\s]+$",
              "maxLength": 512
            },
            "inference-flow-binding/ref": {
              "type": "string",
              "pattern": "^[a-z][a-z0-9-]*:[^\\s]+$",
              "maxLength": 512
            }
          }
        },
        {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "kind"
          ],
          "properties": {
            "kind": {
              "const": "coordinator"
            }
          }
        }
      ]
    },
    "request": {
      "type": "object",
      "description": "The operation's request document; absent for a position read."
    }
  }
}