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Envoyer des événements

client.beta.sessions.events.send(sessionID, params, options?): BetaManagedAgentsSendSessionEvents
POST/v1/sessions/{session_id}/events

Envoyer des événements

Parameters
sessionID: string⁠Path parameter
params: EventSendParams { events; betas; workspace_id }
events: Array<BetaManagedAgentsEventParams>

Events to send to the session.

One of the following:
interface BetaManagedAgentsUserMessageEventParams { type: "user.message"; content }

Parameters for sending a user message to the session.

interface BetaManagedAgentsUserInterruptEventParams { type: "user.interrupt"; session_thread_id }

Parameters for sending an interrupt to pause the agent.

type: "user.interrupt"
session_thread_id?: string | null

If absent, interrupts every non-archived thread in a multiagent session (or the primary alone in a single-agent session). If present, interrupts only the named thread.

interface BetaManagedAgentsUserToolConfirmationEventParams { type: "user.tool_confirmation"; result; tool_use_id; deny_message }

Parameters for confirming or denying a tool execution request.

type: "user.tool_confirmation"
result: "allow" | "deny"

The confirmation result: 'allow' or 'deny'.

One of the following:
"allow"
"deny"
tool_use_id: string

The id of the agent.tool_use or agent.mcp_tool_use event this result corresponds to, which can be found in the last session.status_idle event's stop_reason.event_ids field.

minLength1
maxLength128
deny_message?: string | null

Optional message providing context for a 'deny' decision. Only allowed when result is 'deny'.

maxLength10000
interface BetaManagedAgentsUserCustomToolResultEventParams { type: "user.custom_tool_result"; custom_tool_use_id; content; is_error }

Parameters for providing the result of a custom tool execution.

interface BetaManagedAgentsUserDefineOutcomeEventParams { type: "user.define_outcome"; description; rubric; max_iterations }

Parameters for defining an outcome the agent should work toward. The agent begins work on receipt.

interface BetaManagedAgentsUserToolResultEventParams { type: "user.tool_result"; tool_use_id; content; is_error }

Parameters for providing the result of an agent-toolset tool execution. Only valid on self_hosted environments, where sandbox-routed tools are executed by the client rather than the server.

interface BetaManagedAgentsSystemMessageEventParams { type: "system.message"; content }

Privileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a role: "system" turn rather than replacing the top-level system prompt. At most one per request: it must be the final event and immediately follow the user.message, user.tool_result, or user.custom_tool_result it accompanies. Only supported on models that accept mid-conversation system messages.

type: "system.message"
content: Array<BetaManagedAgentsSystemContentBlock { type: "text"; text }>

System content blocks to append. Text-only.

type: "text"
text: string

The text content.

minLength1
betas?: Array<AnthropicBeta>⁠Header parameter

Optional header to specify the beta version(s) you want to use.

One of the following:
(string & {})
"message-batches-2024-09-24"
"prompt-caching-2024-07-31"
"computer-use-2024-10-22"
"computer-use-2025-01-24"
"pdfs-2024-09-25"
"token-counting-2024-11-01"
"token-efficient-tools-2025-02-19"
"output-128k-2025-02-19"
"files-api-2025-04-14"
"mcp-client-2025-04-04"
"mcp-client-2025-11-20"
"dev-full-thinking-2025-05-14"
"interleaved-thinking-2025-05-14"
"code-execution-2025-05-22"
"extended-cache-ttl-2025-04-11"
"context-1m-2025-08-07"
"context-management-2025-06-27"
"model-context-window-exceeded-2025-08-26"
"skills-2025-10-02"
"fast-mode-2026-02-01"
"output-300k-2026-03-24"
"user-profiles-2026-03-24"
"user-profiles-2026-08-18"
"user-profiles-2026-09-04"
"advisor-tool-2026-03-01"
"managed-agents-2026-04-01"
"cache-diagnosis-2026-04-07"
"dreaming-2026-04-21"
"thinking-token-count-2026-05-13"
"server-side-fallback-2026-06-01"
"server-side-fallback-2026-07-01"
"fallback-credit-2026-06-01"
"fallback-credit-2026-07-01"
"agent-memory-2026-07-22"
"mid-conversation-tool-changes-2026-07-01"
"compact-2026-01-12"
"computer-use-2025-11-24"
"mcp-tunnels-2026-06-22"
"structured-outputs-2025-11-13"
"task-budgets-2026-03-13"
"thinking-display-updates-2026-08-18"
"ce-user-management-2026-07-13"
"mid-conversation-output-config-2026-07-01"
"thinking-binding-controls-2026-08-01"
"mid-conversation-system-clear-at-2026-08-21"
"compact-2026-09-04"
"inline-tools-2026-09-15"
"mcp-client-2026-09-15"
"ce-plugins-2026-09-01"
"spend-limit-reads-2026-09-26"
workspace_id?: string⁠Header parameter

Optional header to select the Workspace for this request. The value is a Workspace ID (for example, wrkspc_011CZkZaBF1tNoB5wlCeusgy).

Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.

Returns
interface BetaManagedAgentsSendSessionEvents { data }

Events that were successfully sent to the session.

Envoyer des événements
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

const betaManagedAgentsSendSessionEvents = await client.beta.sessions.events.send(
  "sesn_011CZkZAtmR3yMPDzynEDxu7",
  {
    events: [
      { content: [{ text: "Where is my order #1234?", type: "text" }], type: "user.message" }
    ]
  }
);

console.log(betaManagedAgentsSendSessionEvents.data);
Returns Examples
Response 200
{
  "data": [
    {
      "id": "sevt_011CZkZGPp1iBcp4kaQSihUm",
      "content": [
        {
          "text": "Where is my order #1234?",
          "type": "text"
        }
      ],
      "type": "user.message",
      "processed_at": "2026-03-15T10:00:00Z"
    }
  ]
}