Versions
List Agent Versions
$client->beta->agents->versions->list(string agentID, ?int limit, ?string page, ?list<AnthropicBeta> betas, ?string workspaceID): PageCursor<BetaManagedAgentsAgent>GET/v1/agents/{agent_id}/versions
Requires
anthropic-beta: managed-agents-2026-04-01. How to send beta headers