Claude Platform Docs

Record Heartbeat

$ ant beta:environments:work heartbeat
POST/v1/environments/{environment_id}/work/{work_id}/heartbeat

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Record a heartbeat for a work item to maintain the lease.

Parameters
--environment-id: string

Path param

--work-id: string

Path param

--desired-ttl-seconds: optional number

Query param: Desired TTL in seconds

--expected-last-heartbeat: optional string

Query param: Expected last_heartbeat for conditional update (optimistic concurrency). Use literal 'NO_HEARTBEAT' to claim an unclaimed lease (first heartbeat). For subsequent heartbeats, echo the server's previous last_heartbeat value exactly. Returns 412 Precondition Failed if the actual value doesn't match.

--beta: optional array of AnthropicBeta

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

Returns
beta_self_hosted_work_heartbeat_response: object{ type: "work_heartbeat", last_heartbeat, lease_extended, 2 more }

Response after recording a heartbeat for a work item.

type: "work_heartbeat"

The type of response

last_heartbeat: string

RFC 3339 timestamp of the actual heartbeat from DB

lease_extended: boolean

Whether the heartbeat succeeded in extending the lease

state: "queued" or "starting" or "active" or 2 more

Current state of the work item (active/stopping/stopped)

One of the following:
"queued"
"starting"
"active"
"stopping"
"stopped"
ttl_seconds: number

Effective TTL applied to the lease

Record Heartbeat
ant beta:environments:work heartbeat \
  --api-key my-anthropic-api-key \
  --environment-id env_011CZkZ9X2dpNyB7HsEFoRfW \
  --work-id work_id
Returns Examples
Response 200
{
  "last_heartbeat": "last_heartbeat",
  "lease_extended": true,
  "state": "queued",
  "ttl_seconds": 0,
  "type": "work_heartbeat"
}