---
title: Poll for Work
url: https://platform.claude.com/docs/en/api/ruby/beta/environments/work/poll
---

# Poll for Work

`beta.environments.work.poll(environment_id, **kwargs) -> BetaSelfHostedWork`

**GET** `/v1/environments/{environment_id}/work/poll`

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.

Long poll for work items in the queue.

## Parameters

- `environment_id: String` (path parameter)

- `block_ms: Integer` (query parameter)

  How long to wait for work to arrive before returning. Must be 1-999 in milliseconds. Defaults to non-blocking (returns immediately if no work is available).

  minimum: 1

- `reclaim_older_than_ms: Integer` (query parameter)

  Reclaim unacknowledged work items older than this many milliseconds. If omitted, uses the default (5000ms).

  minimum: 1

- `betas: Array[AnthropicBeta]` (header parameter)

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

  - `String = 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"`

  - `:"telemetry-destinations-2026-08-11"`

- `anthropic_worker_id: String` (header parameter)

  Unique identifier for the specific worker polling, used to track aggregated environment-level work metrics in Console

## Returns

- `class BetaSelfHostedWork`

  Work resource representing a unit of work in a self-hosted environment.

  Work items are queued when sessions are created or when long-dormant sessions
  receive new messages. The environment worker polls for work to execute in a
  self-hosted sandbox.

  - `type: :work`

    The type of object (always 'work')

  - `id: String`

    Work identifier (e.g., 'work_...')

  - `acknowledged_at: String`

    RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

  - `created_at: String`

    RFC 3339 timestamp when work was created

  - `data: BetaSessionWorkData`

    The actual work to be performed

    - `type: :session`

      Type of work data

    - `id: String`

      Session identifier (e.g., 'session_...')

  - `environment_id: String`

    Environment identifier this work belongs to (e.g., `env_...`)

  - `latest_heartbeat_at: String`

    RFC 3339 timestamp of the most recent heartbeat

  - `metadata: Hash[Symbol, String]`

    User-provided metadata key-value pairs associated with this work item

  - `secret: String`

    Credential payload used by the environment worker to execute this work item. May be populated when polling for work; null on all other retrieval paths.

  - `started_at: String`

    RFC 3339 timestamp when work execution started

  - `state: :queued | :starting | :active | 2 more`

    Current state of the work item

    - `:queued`

    - `:starting`

    - `:active`

    - `:stopping`

    - `:stopped`

  - `stop_requested_at: String`

    RFC 3339 timestamp when stop was requested

  - `stopped_at: String`

    RFC 3339 timestamp when work execution stopped

## Example

```ruby
require "anthropic"

anthropic = Anthropic::Client.new(api_key: "my-anthropic-api-key")

beta_self_hosted_work = anthropic.beta.environments.work.poll("env_011CZkZ9X2dpNyB7HsEFoRfW")

puts(beta_self_hosted_work)
```

### Response (200)

```json
{
  "id": "id",
  "acknowledged_at": "acknowledged_at",
  "created_at": "created_at",
  "data": {
    "id": "id",
    "type": "session"
  },
  "environment_id": "environment_id",
  "latest_heartbeat_at": "latest_heartbeat_at",
  "metadata": {
    "foo": "string"
  },
  "secret": "secret",
  "started_at": "started_at",
  "state": "queued",
  "stop_requested_at": "stop_requested_at",
  "stopped_at": "stopped_at",
  "type": "work"
}
```