---
title: "Changes to Start a cloud instance"
method: POST
path: "/agentSession/{agent_session_id}/cloudInstance/{cloud_instance_id}/start"
---

# Changes to Start a cloud instance

`POST /agentSession/{agent_session_id}/cloudInstance/{cloud_instance_id}/start`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 10 revisions.

- **2026-08-29** `213a66c2bc25` — 4 warning, 2 info
- **2026-08-26** `449a100bcd1b` — 4 warning, 2 info
- **2026-08-19** `f91da75be07c` — 8 warning
- **2026-08-11** `08990d0dbafe` — 4 info

## Changes

- **2026-08-29** `213a66c2bc25` — 4 warning, 2 info
  - added the new `agent_error` enum value to the `termination_reason` response property for the response status `200`
  - added the new `agent_error` enum value to the `termination_reason` response property for the response status `429`
  - added the new `agent_stalled` enum value to the `termination_reason` response property for the response status `200`
  - added the new `agent_stalled` enum value to the `termination_reason` response property for the response status `429`
  - added the optional property `session_startup_params_snapshot/anyOf[#/components/schemas/TestAuthoringSessionStartupParams]/agent_state/testInformation/http_auth_credentials_id` to the response with the `200` status
  - added the optional property `session_startup_params_snapshot/anyOf[#/components/schemas/TestAuthoringSessionStartupParams]/agent_state/testInformation/http_auth_credentials_id` to the response with the `429` status
- **2026-08-26** `449a100bcd1b` — 4 warning, 2 info
  - added the new `test_impact` enum value to the `agent_type` response property for the response status `200`
  - added the new `test_impact` enum value to the `agent_type` response property for the response status `429`
  - added the new `test_impact` enum value to the `session_startup_params_snapshot/type` response property for the response status `200`
  - added the new `test_impact` enum value to the `session_startup_params_snapshot/type` response property for the response status `429`
  - added `#/components/schemas/TestImpactSessionStartupParams` to the `session_startup_params_snapshot` response property `anyOf` list for the response status `200`
  - added `#/components/schemas/TestImpactSessionStartupParams` to the `session_startup_params_snapshot` response property `anyOf` list for the response status `429`
- **2026-08-19** `f91da75be07c` — 8 warning
  - added the new `accepted` enum value to the `status` response property for the response status `200`
  - added the new `accepted` enum value to the `status` response property for the response status `429`
  - added the new `closed` enum value to the `status` response property for the response status `200`
  - added the new `closed` enum value to the `status` response property for the response status `429`
  - added the new `dispatch_failed` enum value to the `termination_reason` response property for the response status `200`
  - added the new `dispatch_failed` enum value to the `termination_reason` response property for the response status `429`
  - added the new `failure_categorization_override_analysis` enum value to the `session_startup_params_snapshot/anyOf[#/components/schemas/AgentReviewSessionStartupParams]/agent_subtype` response property for the response status `200`
  - added the new `failure_categorization_override_analysis` enum value to the `session_startup_params_snapshot/anyOf[#/components/schemas/AgentReviewSessionStartupParams]/agent_subtype` response property for the response status `429`
- **2026-08-11** `08990d0dbafe` — 4 info
  - added the optional property `session_startup_params_snapshot/anyOf[#/components/schemas/TestAuthoringSessionStartupParams]/agent_state/testInformation/source_test_id` to the response with the `200` status
  - added the optional property `session_startup_params_snapshot/anyOf[#/components/schemas/TestAuthoringSessionStartupParams]/agent_state/testInformation/source_test_id` to the response with the `429` status
  - added the optional property `session_startup_params_snapshot/anyOf[#/components/schemas/TestAuthoringSessionStartupParams]/base_version` to the response with the `200` status
  - added the optional property `session_startup_params_snapshot/anyOf[#/components/schemas/TestAuthoringSessionStartupParams]/base_version` to the response with the `429` status

---

[Operation](https://skmtc.dev/mabl/apis/mabl-api/docs/agentSession/:agent_session_id/cloudInstance/:cloud_instance_id/start/post.md) · [API](https://skmtc.dev/mabl/apis/mabl-api.md) · [Page](https://skmtc.dev/mabl/apis/mabl-api/changes/agentSession/:agent_session_id/cloudInstance/:cloud_instance_id/start/post)