# Add a Project matchmaking application repeatable item

`projects.add_matchmaking_repeatable_item`

Add one empty row to a repeatable group in a Project matchmaking application. Read the group first and pass its latest answers_revision, then update the returned item_id with row answers.

[Matchmaking guide](https://docs.levr.ai/mcp/resources/matchmaking.md)

Availability depends on live discovery and your access to the record. Do not infer MCP calls from REST paths.

Operation: write. Required OAuth scopes: mcp.

## Input schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "properties": {
    "block_key": {
      "description": "Copy block_key from projects.get_matchmaking_application_contract questions or repeatable_groups; not a section key.",
      "maxLength": 255,
      "minLength": 1,
      "type": "string"
    },
    "expected_answers_revision": {
      "minimum": 0,
      "type": "integer"
    },
    "idempotency_key": {
      "format": "uuid",
      "type": "string"
    },
    "parent_item_id": {
      "anyOf": [
        {
          "description": "Stable item_id returned by the repeatable-item list or create operation.",
          "maxLength": 255,
          "minLength": 1,
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Stable item_id returned by the repeatable-item list or create operation."
    },
    "provider_slug": {
      "description": "Copy provider_slug from providers.list; named slugs are valid.",
      "maxLength": 255,
      "minLength": 1,
      "type": "string"
    },
    "workspace_slug": {
      "description": "Matching workspace: copy workspace_slug (mmw_) from projects.get or projects.list; not project_slug.",
      "maxLength": 255,
      "minLength": 1,
      "type": "string"
    }
  },
  "required": [
    "provider_slug",
    "workspace_slug",
    "expected_answers_revision",
    "idempotency_key",
    "block_key"
  ],
  "type": "object"
}
```

## Output schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "oneOf": [
    {
      "not": {
        "required": [
          "error"
        ]
      },
      "properties": {
        "ok": {
          "const": true
        }
      },
      "required": [
        "data"
      ]
    },
    {
      "not": {
        "required": [
          "data"
        ]
      },
      "properties": {
        "ok": {
          "const": false
        }
      },
      "required": [
        "error"
      ]
    }
  ],
  "properties": {
    "data": {
      "additionalProperties": false,
      "properties": {
        "affected_section_keys": {
          "items": {
            "description": "Stable public identifier for the referenced resource.",
            "maxLength": 255,
            "minLength": 1,
            "type": "string"
          },
          "type": "array",
          "uniqueItems": true
        },
        "answers_revision": {
          "minimum": 0,
          "type": "integer"
        },
        "item": {
          "additionalProperties": false,
          "properties": {
            "answers": {
              "items": {
                "additionalProperties": false,
                "properties": {
                  "block_key": {
                    "maxLength": 64,
                    "minLength": 1,
                    "type": "string"
                  },
                  "field_key": {
                    "maxLength": 512,
                    "minLength": 1,
                    "type": "string"
                  },
                  "item_id": {
                    "description": "Stable item_id returned by the repeatable-item list or create operation.",
                    "maxLength": 255,
                    "minLength": 1,
                    "type": "string"
                  },
                  "schema_key": {
                    "maxLength": 512,
                    "minLength": 1,
                    "type": "string"
                  },
                  "value": {
                    "anyOf": [
                      {
                        "type": "null"
                      },
                      {
                        "maxLength": 10000,
                        "type": "string"
                      },
                      {
                        "type": "integer"
                      },
                      {
                        "type": "number"
                      },
                      {
                        "type": "boolean"
                      },
                      {
                        "items": {
                          "anyOf": [
                            {
                              "maxLength": 1000,
                              "type": "string"
                            },
                            {
                              "type": "integer"
                            },
                            {
                              "type": "number"
                            },
                            {
                              "type": "boolean"
                            }
                          ]
                        },
                        "maxItems": 100,
                        "type": "array"
                      }
                    ]
                  },
                  "value_type": {
                    "maxLength": 36,
                    "minLength": 1,
                    "type": "string"
                  }
                },
                "required": [
                  "block_key",
                  "schema_key",
                  "field_key",
                  "value",
                  "item_id",
                  "value_type"
                ],
                "type": "object"
              },
              "type": "array"
            },
            "block_key": {
              "description": "Stable public identifier for the referenced resource.",
              "maxLength": 255,
              "minLength": 1,
              "type": "string"
            },
            "item_id": {
              "description": "Stable item_id returned by the repeatable-item list or create operation.",
              "maxLength": 255,
              "minLength": 1,
              "type": "string"
            },
            "order": {
              "minimum": 0,
              "type": "integer"
            },
            "parent_item_id": {
              "anyOf": [
                {
                  "description": "Stable item_id returned by the repeatable-item list or create operation.",
                  "maxLength": 255,
                  "minLength": 1,
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "description": "Stable item_id returned by the repeatable-item list or create operation."
            }
          },
          "required": [
            "item_id",
            "block_key",
            "parent_item_id",
            "order",
            "answers"
          ],
          "type": "object"
        },
        "resource": {
          "additionalProperties": false,
          "properties": {
            "id": {
              "description": "Stable public identifier for the referenced resource.",
              "maxLength": 255,
              "minLength": 1,
              "type": "string"
            },
            "object": {
              "type": "string"
            }
          },
          "required": [
            "id",
            "object"
          ],
          "type": "object"
        }
      },
      "required": [
        "resource",
        "answers_revision",
        "affected_section_keys",
        "item"
      ],
      "type": "object"
    },
    "error": {
      "additionalProperties": false,
      "properties": {
        "code": {
          "type": "string"
        },
        "details": {
          "additionalProperties": true,
          "description": "Optional bounded, agent-safe correction or recovery facts.",
          "type": "object"
        },
        "message": {
          "type": "string"
        },
        "retryable": {
          "type": "boolean"
        }
      },
      "required": [
        "code",
        "message",
        "retryable"
      ],
      "type": "object"
    },
    "meta": {
      "additionalProperties": false,
      "properties": {
        "request_id": {
          "type": "string"
        }
      },
      "required": [
        "request_id"
      ],
      "type": "object"
    },
    "ok": {
      "description": "Whether the tool completed successfully.",
      "type": "boolean"
    }
  },
  "required": [
    "ok",
    "meta"
  ],
  "type": "object"
}
```

Check the result, then read the affected record to confirm your change.