> ## Documentation Index > Fetch the complete documentation index at: https://docs.labelbox.com/llms.txt > Use this file to discover all available pages before exploring further. # Read sandbox CPU, memory, and GPU usage for a session tree > Returns the tree's sandbox attachments and one page of per-minute resource usage buckets for them, ordered by attachment then time. Each bucket carries the minute's average and peak; resolution=raw adds the individual samples as parallel arrays indexed by offsets_ms. A tree whose compute was released and revived has several attachments; follow revived_from_sandbox_id to connect them. live reports whether a sandbox is still attached, which is the cue to keep polling. An empty sandboxes list means the tree never ran in a sandbox or sampling is disabled; an attachment with sampling_source=unsupported means the sandbox could not measure itself. ## OpenAPI ````yaml /recursion/openapi.yaml get /managed-agents/v1/sessions/{sessionId}/resource-samples openapi: 3.1.0 info: title: Managed Agents API version: 0.14.0 description: >- The Recursion Managed Agents REST API. Authenticate with a Recursion API key as a bearer token. An organization-scoped key acts in its own organization and needs nothing else; a tenant-scoped key must also send `x-organization-id` with an organization id or `default`. Field names follow each operation's published schema. servers: - url: https://api.recursion.labelbox.com security: - bearerAuth: [] paths: /managed-agents/v1/sessions/{sessionId}/resource-samples: get: tags: - Sessions summary: Read sandbox CPU, memory, and GPU usage for a session tree description: >- Returns the tree's sandbox attachments and one page of per-minute resource usage buckets for them, ordered by attachment then time. Each bucket carries the minute's average and peak; resolution=raw adds the individual samples as parallel arrays indexed by offsets_ms. A tree whose compute was released and revived has several attachments; follow revived_from_sandbox_id to connect them. live reports whether a sandbox is still attached, which is the cue to keep polling. An empty sandboxes list means the tree never ran in a sandbox or sampling is disabled; an attachment with sampling_source=unsupported means the sandbox could not measure itself. operationId: managedAgentsListSessionResourceSamples parameters: - description: >- Inclusive lower bound on bucket_start, RFC 3339. Omit for the start of the tree. in: query name: from schema: description: >- Inclusive lower bound on bucket_start, RFC 3339. Omit for the start of the tree. format: date-time type: string - description: Exclusive upper bound on bucket_start, RFC 3339. Omit for now. in: query name: to schema: description: Exclusive upper bound on bucket_start, RFC 3339. Omit for now. format: date-time type: string - description: >- minute returns per-minute summaries only; raw also includes each bucket's per-sample arrays at the producer's cadence (five seconds by default). Use raw for the window on screen and minute for the overview. in: query name: resolution schema: default: minute description: >- minute returns per-minute summaries only; raw also includes each bucket's per-sample arrays at the producer's cadence (five seconds by default). Use raw for the window on screen and minute for the overview. enum: - minute - raw type: string - description: >- Maximum buckets per page, across all of the tree's sandbox attachments. in: query name: limit schema: default: 120 description: >- Maximum buckets per page, across all of the tree's sandbox attachments. maximum: 720 minimum: 1 type: integer - description: >- Signed continuation token from a previous page's next_page_token. Bound to the organization, session, and filters it was issued for. in: query name: page_token schema: description: >- Signed continuation token from a previous page's next_page_token. Bound to the organization, session, and filters it was issued for. type: string - description: >- Any session id (UUID) in the tree. The sandbox is shared by the whole tree, so every id in it returns the same usage. in: path name: sessionId required: true schema: description: >- Any session id (UUID) in the tree. The sandbox is shared by the whole tree, so every id in it returns the same usage. format: uuid type: string - $ref: '#/components/parameters/RecursionTenantId' - $ref: '#/components/parameters/RecursionOrganizationId' responses: '200': content: application/json: schema: $ref: '#/components/schemas/SessionResourceSamplesResponse' description: >- Sandbox CPU, memory, and accelerator usage for a session tree, as minute buckets per sandbox attachment. Samples are what the sandbox measured of itself, collected on tool calls and on read. headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '400': description: Bad Request. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorInvalidRequest' x-recursion-error-codes: - invalid_request headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '401': description: Unauthorized. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorUnauthorized' x-recursion-error-codes: - unauthorized headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '403': description: Forbidden. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorForbidden' x-recursion-error-codes: - forbidden headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '404': description: Not Found. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorNotFound' x-recursion-error-codes: - not_found headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '413': description: Payload Too Large. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorPayloadTooLarge' x-recursion-error-codes: - payload_too_large headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '429': headers: Retry-After: description: When to retry, as delay seconds or an HTTP date. schema: type: string recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' description: Too Many Requests. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorRateLimitExceeded' x-recursion-error-codes: - rate_limit_exceeded '500': description: Internal Server Error. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorInternalError' x-recursion-error-codes: - internal_error headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '502': description: A dependent service returned an invalid response. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorDependencyFailure' x-recursion-error-codes: - bad_gateway headers: recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' '503': headers: Retry-After: description: When to retry, as delay seconds or an HTTP date. schema: type: string recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' description: Service Unavailable. content: application/json: schema: oneOf: - $ref: >- #/components/schemas/ManagedAgentsApiErrorManagedAgentsUnavailable - $ref: >- #/components/schemas/ManagedAgentsApiErrorServiceUnavailable discriminator: propertyName: code mapping: managed_agents_unavailable: >- #/components/schemas/ManagedAgentsApiErrorManagedAgentsUnavailable service_unavailable: >- #/components/schemas/ManagedAgentsApiErrorServiceUnavailable x-recursion-error-codes: - managed_agents_unavailable - service_unavailable '504': headers: Retry-After: description: When to retry, as delay seconds or an HTTP date. schema: type: string recursion-organization-id: $ref: '#/components/headers/RecursionOrganizationId' recursion-tenant-id: $ref: '#/components/headers/RecursionTenantId' description: A dependent service timed out. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorDependencyTimeout' x-recursion-error-codes: - gateway_timeout components: parameters: RecursionTenantId: name: x-tenant-id in: header required: false description: >- Optional tenant consistency check. When present, it must name the tenant bound to the API key, including when x-organization-id is `default`. schema: type: string minLength: 1 RecursionOrganizationId: name: x-organization-id in: header required: false description: >- Organization in which to act. Required for a tenant-scoped API key. Optional for an organization-scoped key, where it must name that same organization. The value may be an organization id or `default`. schema: type: string minLength: 1 schemas: SessionResourceSamplesResponse: description: >- Sandbox CPU, memory, and accelerator usage for a session tree, as minute buckets per sandbox attachment. Samples are what the sandbox measured of itself, collected on tool calls and on read. properties: as_of: description: RFC 3339 server time at which the page was read. format: date-time type: string buckets: description: >- One page of minute buckets ordered by (sandbox_id, bucket_start). Each bucket names its attachment; join on sandboxes to place it on a lane. items: $ref: '#/components/schemas/ResourceSampleBucket' type: array live: description: >- True while a sandbox that can be sampled is still attached to the tree. A client keeps polling while this is true and stops once it turns false; an attached sandbox that cannot measure itself does not keep it true. type: boolean next_page_token: description: >- Present when more buckets remain. Pass as page_token with the same query to continue. type: string resolution: description: Resolution the buckets were read at. enum: - minute - raw type: string root_session_id: description: Root of the tree the usage belongs to. type: string sandboxes: description: >- Every sandbox attachment the tree has had, oldest first, including ones that have since been released or closed. Empty when the tree never had a sandbox or sampling is disabled. Complete on every page. items: $ref: '#/components/schemas/SessionSandbox' type: array session_id: description: Session id named in the request. type: string required: - session_id - root_session_id - resolution - live - sandboxes - buckets - as_of type: object additionalProperties: false ManagedAgentsApiErrorInvalidRequest: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - invalid_request message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorUnauthorized: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - unauthorized message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorForbidden: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - forbidden message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorNotFound: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - not_found message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorPayloadTooLarge: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - payload_too_large message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorRateLimitExceeded: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - rate_limit_exceeded message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorInternalError: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - internal_error message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorDependencyFailure: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - bad_gateway message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorManagedAgentsUnavailable: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - managed_agents_unavailable message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorServiceUnavailable: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - service_unavailable message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorDependencyTimeout: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - gateway_timeout message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ResourceSampleBucket: description: >- One sandbox attachment's resource usage for one minute. Per-sample CPU, memory, and disk readings are parallel arrays indexed by offsets_ms; the average and peak columns summarize the minute and are all a summary-resolution read returns. Capacities and limits give each series its denominator. properties: bucket_start: description: RFC 3339 timestamp of the minute's start, on the producer's clock. format: date-time type: string complete: description: >- True once the producer has moved past this minute. An incomplete bucket is the one being filled and is rewritten by the next drain. type: boolean cpu_capacity_millicores: description: >- CPU the container could use in millicores: its quota when set, otherwise the CPUs its cpuset allows. Divide cpu_millicores by this for utilization percent. type: integer minimum: -9007199254740991 maximum: 9007199254740991 cpu_limit_millicores: description: CPU quota of the container in millicores, when one is set. type: integer minimum: -9007199254740991 maximum: 9007199254740991 cpu_millicores: description: >- Per-sample CPU consumption in millicores; 1000 is one core fully busy. items: format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 type: array cpu_millicores_avg: description: Mean CPU millicores over the minute. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 cpu_millicores_peak: description: Highest sampled CPU millicores in the minute. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 disk_capacity_bytes: description: >- Bytes the workspace volume can hold for an unprivileged writer (size less the root reserve). Divide disk_used by this for utilization percent. type: integer minimum: -9007199254740991 maximum: 9007199254740991 disk_used_avg_bytes: description: >- Mean bytes in use on the workspace volume over the minute. Absent without a disk reading. type: integer minimum: -9007199254740991 maximum: 9007199254740991 disk_used_bytes: description: >- Per-sample bytes in use on the volume holding the workspace. -1 marks a sample without a disk reading. Absent when the producer never saw the volume. items: format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 type: array disk_used_peak_bytes: description: >- Highest sampled bytes in use on the workspace volume in the minute. Absent without a disk reading. type: integer minimum: -9007199254740991 maximum: 9007199254740991 gpu_count: description: >- Number of accelerators visible to the container. Absent without accelerators. type: integer minimum: -9007199254740991 maximum: 9007199254740991 gpu_devices: description: Per-device summary for the minute. Absent without accelerators. items: $ref: '#/components/schemas/GPUDeviceMinute' type: array gpu_memory_total_bytes: description: >- Total accelerator memory in bytes across devices. Absent without accelerators. type: integer minimum: -9007199254740991 maximum: 9007199254740991 gpu_memory_used_bytes: description: >- Per-sample GPU memory in use, summed across devices. Absent without accelerators. items: format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 type: array gpu_memory_used_peak_bytes: description: >- Highest sampled GPU memory in use during the minute, in bytes. Absent without accelerators. type: integer minimum: -9007199254740991 maximum: 9007199254740991 gpu_utilization_avg: description: >- Mean GPU utilization percent over the minute. Absent without accelerators. type: number gpu_utilization_peak: description: >- Highest sampled GPU utilization percent in the minute. Absent without accelerators. type: number gpu_utilization_percent: description: >- Per-sample GPU utilization percent, mean across devices. Absent without accelerators. items: format: double type: number type: array interval_ms: description: Producer sampling cadence in milliseconds. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 memory_capacity_bytes: description: >- Memory the container could use in bytes: its limit when set, otherwise the machine's total. Divide the working set by this for utilization percent. type: integer minimum: -9007199254740991 maximum: 9007199254740991 memory_limit_bytes: description: Memory limit of the container in bytes, when one is set. type: integer minimum: -9007199254740991 maximum: 9007199254740991 memory_working_set_avg_bytes: description: Mean memory working set over the minute, in bytes. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 memory_working_set_bytes: description: >- Per-sample memory working set in bytes (resident less reclaimable file cache). items: format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 type: array memory_working_set_peak_bytes: description: Highest sampled memory working set in the minute, in bytes. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 offsets_ms: description: >- Sample times as milliseconds after bucket_start, ascending. Indexes the other per-sample arrays. items: format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 type: array received_at: description: >- RFC 3339 commit timestamp of the write that last touched this bucket. format: date-time type: string sample_count: description: >- Number of samples in the minute; twelve at the default five-second cadence. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 sandbox_id: description: Attachment the bucket belongs to. type: string shared_slots: description: >- Historical count of sessions that shared the retired environment worker's process boundary, including this one. Absent on samples from active providers. type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: - sandbox_id - bucket_start - complete - sample_count - interval_ms - cpu_millicores_avg - cpu_millicores_peak - memory_working_set_avg_bytes - memory_working_set_peak_bytes - received_at type: object additionalProperties: false SessionSandbox: description: >- One continuous residency of a sandbox container in a session tree: when it was bound, when and why it stopped serving, which attachment it continues if the compute was revived from a snapshot, and the state of resource sampling for it. properties: attached_at: description: RFC 3339 timestamp at which the container was bound to the tree. format: date-time type: string detach_reason: description: >- Why the attachment ended: released (compute given back, workspace kept), closed (session ended), replaced (a different container took over), idle_stopped (the provider stopped an idle compute, workspace kept), or lost (the sandbox binding was found gone). type: string detached_at: description: >- RFC 3339 timestamp at which the container stopped serving the tree. Absent while attached. format: date-time type: string last_drained_at: description: RFC 3339 timestamp of the last successful drain from the producer. format: date-time type: string owner_session_path: description: >- Tree path of the session that attached the container. '/' for the root. type: string revived_from_sandbox_id: description: >- Attachment this one continues, when the container was restored from the previous attachment's snapshot. type: string role: description: What the container is to the session. Always primary today. type: string sample_interval_ms: description: Producer sampling cadence in milliseconds. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 sample_rows: description: Number of minute buckets stored for this attachment. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 sample_watermark_at: description: >- Start of the newest minute bucket with samples. Absent until the first drain lands data. format: date-time type: string sampling_scope: description: >- What the samples describe: cgroup for one container or host for the whole machine. type: string sampling_source: description: >- Producer of this attachment's resource samples: rma_worker or agent_service_daemon. Absent until the first drain, and 'unsupported' when the sandbox cannot measure itself. type: string sandbox_id: description: >- Tree-local identifier of this attachment (UUIDv7). A released-and-revived compute is a new attachment; follow revived_from_sandbox_id for its predecessor. type: string sandbox_instance_id: description: >- Provider-assigned identity of the container: a compute id or container id. Historical self_hosted rows may contain a daemon id. type: string sandbox_provider: description: >- Sandbox runtime that provided the container: runs or docker. Historical rows may report the retired self_hosted value. type: string required: - sandbox_id - sandbox_provider - sandbox_instance_id - role - owner_session_path - attached_at - sample_rows type: object additionalProperties: false ManagedAgentsApiErrorDetails: type: object properties: field: description: >- Request field or header responsible for the error, when one can be identified. type: string issues: description: >- Boundary-validation failures as path-prefixed human-readable messages. type: array items: type: string requestId: description: Request correlation identifier for support and log lookup. type: string retryable: description: >- Server advice about failure transience. `true` means transient, `false` means non-transient, and absence gives no advice. Automatic replay is allowed only when this field is not `false` and the operation-specific retry and idempotency contract permits replay. type: boolean additionalProperties: $ref: '#/components/schemas/PlatformSafeJsonValue' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. GPUDeviceMinute: description: >- One accelerator's summary for a minute bucket: its driver index, average and peak utilization, peak memory used, and total memory. The per-sample GPU arrays, and the -1 holes for samples the device did not report, live on the bucket itself. properties: index: description: Device index as the driver reports it. type: integer minimum: -9007199254740991 maximum: 9007199254740991 memory_total_bytes: description: Device memory capacity in bytes. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 memory_used_peak_bytes: description: Highest sampled device memory in use during the minute, in bytes. format: int64 type: integer minimum: -9007199254740991 maximum: 9007199254740991 utilization_avg: description: Mean utilization percent across the minute's samples. format: double type: number utilization_peak: description: Highest sampled utilization percent in the minute. format: double type: number required: - index - utilization_avg - utilization_peak - memory_used_peak_bytes - memory_total_bytes type: object additionalProperties: false PlatformSafeJsonValue: description: >- A JSON value whose integer members stay within the exact ECMAScript safe-integer range at every nesting level. oneOf: - type: 'null' - type: boolean - type: string - type: integer minimum: -9007199254740991 maximum: 9007199254740991 - type: number not: type: integer - type: array items: $ref: '#/components/schemas/PlatformSafeJsonValue' - additionalProperties: $ref: '#/components/schemas/PlatformSafeJsonValue' type: object headers: RecursionOrganizationId: description: Organization id resolved for this request. schema: type: string minLength: 1 RecursionTenantId: description: Tenant id resolved for this request. schema: type: string minLength: 1 securitySchemes: bearerAuth: type: http scheme: bearer description: A Recursion API key, created in the console under API keys. ````