{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/anthropic/main/json-schema/anthropic-beta-managed-agents-memory-version-schema.json",
  "title": "BetaManagedAgentsMemoryVersion",
  "description": "A `memory_version` object: one immutable, attributed row in a memory's append-only history. Every non-no-op mutation to a memory produces a new version. Versions belong to the store (not the individual memory) and are not deleted with the memory; each version is retained for at least the version retention period after it was written, unless the store itself is deleted. Retrieving a redacted version returns 200 with `content`, `path`, `content_size_bytes`, and `content_sha256` set to `null`; branch on `redacted_at`, not HTTP status.",
  "x-generated": "2026-09-23",
  "x-method": "derived",
  "x-generator": "derive-json-schema.py",
  "x-source": "openapi/anthropic-memory-stores-api-openapi.yml#/components/schemas/BetaManagedAgentsMemoryVersion",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "type",
    "id",
    "memory_store_id",
    "memory_id",
    "operation",
    "created_at"
  ],
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "memory_version"
      ]
    },
    "id": {
      "description": "Unique identifier for this version (a `memver_...` value).",
      "type": "string"
    },
    "memory_store_id": {
      "description": "ID of the memory store this version belongs to (a `memstore_...` value).",
      "type": "string"
    },
    "memory_id": {
      "description": "ID of the memory this version snapshots (a `mem_...` value). Remains valid after the memory is deleted; pass it as `memory_id` to [List memory versions](/en/api/beta/memory_stores/memory_versions/list) to retrieve the memory's retained versions, including the `deleted` row while the lineage is retained.",
      "type": "string"
    },
    "path": {
      "description": "The memory's path at the time of this write. `null` if and only if `redacted_at` is set.",
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "operation": {
      "description": "The kind of mutation this version records: `created`, `modified`, or `deleted`.",
      "allOf": [
        {
          "$ref": "#/$defs/BetaManagedAgentsMemoryVersionOperation"
        }
      ]
    },
    "content": {
      "description": "The memory's UTF-8 text content as of this version. `null` when `view=basic`, when `operation` is `deleted`, or when `redacted_at` is set.",
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "content_size_bytes": {
      "description": "Size of `content` in bytes as of this version. `null` when `redacted_at` is set or `operation` is `deleted`. Populated regardless of `view` otherwise.",
      "anyOf": [
        {
          "type": "integer",
          "format": "int32"
        },
        {
          "type": "null"
        }
      ]
    },
    "content_sha256": {
      "description": "Lowercase hex SHA-256 digest of `content` as of this version (64 characters). `null` when `redacted_at` is set or `operation` is `deleted`. Populated regardless of `view` otherwise.",
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "created_by": {
      "description": "Who performed this write: one of `session_actor`, `api_actor`, `user_actor`, or `service_account_actor`; `null` when no writer is recorded. Captured at write time and preserved through redaction.",
      "allOf": [
        {
          "$ref": "#/$defs/BetaManagedAgentsActor"
        }
      ]
    },
    "created_at": {
      "description": "When this version was written, in RFC 3339 format.",
      "allOf": [
        {
          "$ref": "#/$defs/BetaTimestamp"
        }
      ]
    },
    "redacted_at": {
      "description": "When this version was redacted, in RFC 3339 format, or `null` if it has not been redacted. When set, `content`, `path`, `content_size_bytes`, and `content_sha256` are all `null`. See [Redact a memory version](/en/api/beta/memory_stores/memory_versions/redact).",
      "anyOf": [
        {
          "$ref": "#/$defs/BetaTimestamp"
        },
        {
          "type": "null"
        }
      ]
    },
    "redacted_by": {
      "description": "Who redacted this version, or `null` if it has not been redacted. In practice always an `api_actor`, `user_actor`, or `service_account_actor` (agents do not have a redact capability).",
      "allOf": [
        {
          "$ref": "#/$defs/BetaManagedAgentsActor"
        }
      ]
    }
  },
  "$defs": {
    "BetaManagedAgentsActor": {
      "description": "Identifies who performed a write or redact operation. Captured at write time on the `memory_version` row. The API key that created a session is not recorded on agent writes; attribution answers who made the write, not who is ultimately responsible. Look up session provenance separately via the [Sessions API](/en/api/sessions-retrieve).",
      "type": "object",
      "oneOf": [
        {
          "$ref": "#/$defs/BetaManagedAgentsSessionActor"
        },
        {
          "$ref": "#/$defs/BetaManagedAgentsApiActor"
        },
        {
          "$ref": "#/$defs/BetaManagedAgentsUserActor"
        },
        {
          "$ref": "#/$defs/BetaManagedAgentsServiceAccountActor"
        }
      ]
    },
    "BetaManagedAgentsApiActor": {
      "description": "Attribution for a write made directly via the public API (outside of any session).",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "type",
        "api_key_id"
      ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "api_actor"
          ]
        },
        "api_key_id": {
          "description": "ID of the API key that performed the write. This identifies the key, not the secret.",
          "type": "string",
          "minLength": 1
        }
      }
    },
    "BetaManagedAgentsMemoryVersionOperation": {
      "type": "string",
      "description": "The kind of mutation a `memory_version` records. Every non-no-op mutation to a memory appends exactly one version row with one of these values.",
      "enum": [
        "created",
        "modified",
        "deleted"
      ]
    },
    "BetaManagedAgentsServiceAccountActor": {
      "description": "Attribution for a write made by a workload authenticated as a service account, for example via Workload Identity Federation.",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "type",
        "service_account_id"
      ],
      "properties": {
        "type": {
          "type": "string",
          "const": "service_account_actor"
        },
        "service_account_id": {
          "description": "ID of the service account that performed the write (a `svac_...` value).",
          "type": "string",
          "minLength": 1
        }
      }
    },
    "BetaManagedAgentsSessionActor": {
      "description": "Attribution for a write made by an agent during a session, through the mounted filesystem at `/mnt/memory/`.",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "type",
        "session_id"
      ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "session_actor"
          ]
        },
        "session_id": {
          "description": "ID of the session that performed the write (a `sesn_...` value). Look up the session via [Retrieve a session](/en/api/sessions-retrieve) for further provenance.",
          "type": "string",
          "minLength": 1
        }
      }
    },
    "BetaManagedAgentsUserActor": {
      "description": "Attribution for a write made by a human user through the Anthropic Console.",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "type",
        "user_id"
      ],
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "user_actor"
          ]
        },
        "user_id": {
          "description": "ID of the user who performed the write (a `user_...` value).",
          "type": "string",
          "minLength": 1
        }
      }
    },
    "BetaTimestamp": {
      "description": "A timestamp in RFC 3339 format",
      "type": "string",
      "format": "date-time"
    }
  }
}