generated: '2026-06-20'
method: derived
source: openapi/*.yml
notes: Entity-relationship graph derived from OpenAPI component schemas and id-reference
  fields across the Claude API surface. Object id prefixes captured where documented
  (msgbatch_, file_, skill_, apikey_).
entities:
- name: Message
  spec: openapi/anthropic-messages-api-openapi.yml
  description: A model response containing content blocks (text, tool_use, thinking).
  relationships:
  - {type: has_many, target: ContentBlock, via: content}
  - {type: has_one, target: Usage, via: usage}
  - {type: belongs_to, target: Model, via: model}
- name: Model
  spec: openapi/anthropic-models-api-openapi.yml
  description: A Claude model with capabilities, max_input_tokens, and max_tokens.
- name: MessageBatch
  spec: openapi/anthropic-message-batches-api-openapi.yml
  id_prefix: msgbatch_
  description: A batch of message-creation requests processed asynchronously.
  relationships:
  - {type: has_many, target: MessageBatchIndividualRequest, via: requests}
  - {type: has_one, target: RequestCounts, via: request_counts}
- name: File
  spec: openapi/anthropic-files-api-openapi.yml
  id_prefix: file_
  description: An uploaded file reusable across Messages, Batches, and Agents.
- name: Skill
  spec: openapi/anthropic-skills-api-openapi.yml
  id_prefix: skill_
  description: A custom Agent Skill (filesystem directory of instructions/scripts).
  relationships:
  - {type: has_many, target: SkillVersion, via: versions}
- name: Agent
  spec: openapi/anthropic-managed-agents-api-openapi.yml
  description: A managed agent configuration.
  relationships:
  - {type: has_many, target: AgentVersion, via: versions}
  - {type: has_many, target: Session, via: sessions}
- name: Session
  spec: openapi/anthropic-managed-agents-api-openapi.yml
  description: A running instance of a managed agent.
  relationships:
  - {type: belongs_to, target: Agent, via: agent_id}
  - {type: belongs_to, target: Environment, via: environment_id}
  - {type: has_many, target: EventBatch, via: events}
- name: Environment
  spec: openapi/anthropic-managed-agents-api-openapi.yml
  description: A sandbox environment for managed agent execution.
- name: Organization
  spec: openapi/anthropic-admin-api-openapi.yml
  description: The Anthropic organization (admin surface).
  relationships:
  - {type: has_many, target: OrganizationMember, via: members}
  - {type: has_many, target: OrganizationInvite, via: invites}
  - {type: has_many, target: Workspace, via: workspaces}
  - {type: has_many, target: ApiKey, via: api_keys}
- name: Workspace
  spec: openapi/anthropic-admin-api-openapi.yml
  description: A workspace grouping members and API keys within an organization.
  relationships:
  - {type: has_many, target: WorkspaceMember, via: members}
  - {type: belongs_to, target: Organization}
- name: ApiKey
  spec: openapi/anthropic-admin-api-openapi.yml
  id_prefix: apikey_
  description: An API key belonging to a workspace/organization, with status and expires_at.
  relationships:
  - {type: belongs_to, target: Workspace, via: workspace_id}
- name: OrganizationMember
  spec: openapi/anthropic-admin-api-openapi.yml
  description: A member of the organization with a role.
  relationships:
  - {type: belongs_to, target: Organization}