---
title: "Changes to Stream agent session events"
method: GET
path: "/agents/sessions/{session_id}/events"
---

# Changes to Stream agent session events

`GET /agents/sessions/{session_id}/events`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 17 of 554 revisions.

- **2026-10-30** `f13a1920916a`: 5 info
- **2026-10-29** `5029b1cd1a90`: 5 info
- **2026-10-28** `584627423036`: 5 info
- **2026-10-23** `3af3b5fec3f6`: 5 breaking, 5 info
- **2026-10-16** `bd21bf914a07`: 5 warning
- **2026-10-08** `c686bf249e4c`: 1 breaking, 10 warning, 1 info
- **2026-10-08** `d747b8568df2`: 5 info
- **2026-10-06** `9e0991b213ec`: 5 warning
- **2026-10-02** `c7e20d7679dc`: 15 warning
- **2026-09-29** `1c3e85fd629d`: 12 breaking, 17 info
- **2026-09-29** `977c132ac3d0`: 5 info
- **2026-09-27** `4b75527da17b`: 5 warning
- **2026-09-25** `82d76d5c86cf`: 5 warning
- **2026-09-25** `e0550bdbb545`: 5 warning
- **2026-09-19** `d4e842399c2e`: 1 breaking, 1 info
- **2026-09-11** `8c3c08961f62`: 5 warning
- **2026-09-10** `f2dae1a9aced`: 1 info

## Changes

- **2026-10-30** `f13a1920916a`: 5 info
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/review` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/review` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/review` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/review` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/review` to the response with the `200` status
- **2026-10-29** `5029b1cd1a90`: 5 info
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/experimental` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/experimental` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/experimental` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/experimental` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/experimental` to the response with the `200` status
- **2026-10-28** `584627423036`: 5 info
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/compaction` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/compaction` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/compaction` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/compaction` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/compaction` to the response with the `200` status
- **2026-10-23** `3af3b5fec3f6`: 5 breaking, 5 info
  - added `#/components/schemas/AgentToolResourceAutomations` to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceAutomations` to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceAutomations` to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceAutomations` to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceAutomations` to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `automations` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/tools/items/` response property for the response status `200`
  - added `automations` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/tools/items/` response property for the response status `200`
  - added `automations` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/tools/items/` response property for the response status `200`
  - added `automations` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/tools/items/` response property for the response status `200`
  - added `automations` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/tools/items/` response property for the response status `200`
- **2026-10-16** `bd21bf914a07`: 5 warning
  - removed the optional property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/spend_control` from the response with the `200` status
  - removed the optional property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/spend_control` from the response with the `200` status
  - removed the optional property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/spend_control` from the response with the `200` status
  - removed the optional property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/spend_control` from the response with the `200` status
  - removed the optional property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/spend_control` from the response with the `200` status
- **2026-10-08** `c686bf249e4c`: 1 breaking, 10 warning, 1 info
  - added `#/components/schemas/SessionEventAgentSessionEnvironmentSuspended, #/components/schemas/SessionEventAgentSessionEnvironmentExpired` to the response body `oneOf` list for the response status `200`
  - added the new `expired` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentConnected]/environment/status` response property for the response status `200`
  - added the new `expired` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentDisconnected]/environment/status` response property for the response status `200`
  - added the new `expired` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentFailed]/environment/status` response property for the response status `200`
  - added the new `expired` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentPending]/environment/status` response property for the response status `200`
  - added the new `expired` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentReady]/environment/status` response property for the response status `200`
  - added the new `suspended` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentConnected]/environment/status` response property for the response status `200`
  - added the new `suspended` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentDisconnected]/environment/status` response property for the response status `200`
  - added the new `suspended` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentFailed]/environment/status` response property for the response status `200`
  - added the new `suspended` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentPending]/environment/status` response property for the response status `200`
  - added the new `suspended` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionEnvironmentReady]/environment/status` response property for the response status `200`
  - added `agent.session.environment.suspended, agent.session.environment.expired` mapping keys to the response discriminator for the response status `200`
- **2026-10-08** `d747b8568df2`: 5 info
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/spend_control` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/spend_control` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/spend_control` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/spend_control` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/spend_control` to the response with the `200` status
- **2026-10-06** `9e0991b213ec`: 5 warning
  - added the new `billing_not_active` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `billing_not_active` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `billing_not_active` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `billing_not_active` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `billing_not_active` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
- **2026-10-02** `c7e20d7679dc`: 15 warning
  - added the new `organization_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_usage_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_usage_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_usage_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_usage_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `organization_usage_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `project_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `project_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `project_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `project_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `project_spend_limit_exceeded` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
- **2026-09-29** `1c3e85fd629d`: 12 breaking, 17 info
  - added `#/components/schemas/AgentToolResourceComputerUse` to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceComputerUse` to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceComputerUse` to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceComputerUse` to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/AgentToolResourceComputerUse` to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/tools/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/ComputerUseCallItemResource, #/components/schemas/BrowserAuthenticationRequestItemResource` to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnItemDone]/item` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/ComputerUseCallItemResource, #/components/schemas/BrowserAuthenticationRequestItemResource, #/components/schemas/ComputerUseApprovalRequestResultItemResource` to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnItemAdded]/item` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/SessionRequiredActionResourceComputerUseApprovalRequest` to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/required_actions/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/SessionRequiredActionResourceComputerUseApprovalRequest` to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/required_actions/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/SessionRequiredActionResourceComputerUseApprovalRequest` to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/required_actions/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/SessionRequiredActionResourceComputerUseApprovalRequest` to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/required_actions/items/` response property `oneOf` list for the response status `200`
  - added `#/components/schemas/SessionRequiredActionResourceComputerUseApprovalRequest` to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/required_actions/items/` response property `oneOf` list for the response status `200`
  - added `computer_use` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/tools/items/` response property for the response status `200`
  - added `computer_use` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/tools/items/` response property for the response status `200`
  - added `computer_use` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/tools/items/` response property for the response status `200`
  - added `computer_use` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/tools/items/` response property for the response status `200`
  - added `computer_use` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/tools/items/` response property for the response status `200`
  - added `computer_use_approval_request` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/required_actions/items/` response property for the response status `200`
  - added `computer_use_approval_request` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/required_actions/items/` response property for the response status `200`
  - added `computer_use_approval_request` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/required_actions/items/` response property for the response status `200`
  - added `computer_use_approval_request` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/required_actions/items/` response property for the response status `200`
  - added `computer_use_approval_request` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/required_actions/items/` response property for the response status `200`
  - added `computer_use_call, computer_use_approval_request` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnItemDone]/item` response property for the response status `200`
  - added `computer_use_call, computer_use_approval_request, computer_use_approval_request_result` discriminator mapping keys to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnItemAdded]/item` response property for the response status `200`
  - added the required property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/desktop` to the response with the `200` status
  - added the required property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/desktop` to the response with the `200` status
  - added the required property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/desktop` to the response with the `200` status
  - added the required property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/desktop` to the response with the `200` status
  - added the required property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/desktop` to the response with the `200` status
- **2026-09-29** `977c132ac3d0`: 5 info
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/container_size` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/container_size` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/container_size` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/container_size` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/environment/oneOf[#/components/schemas/EnvironmentResourceOpenaiHosted]/container_size` to the response with the `200` status
- **2026-09-27** `4b75527da17b`: 5 warning
  - added the new `flex_unavailable` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `flex_unavailable` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `flex_unavailable` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `flex_unavailable` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `flex_unavailable` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
- **2026-09-25** `82d76d5c86cf`: 5 warning
  - added the new `ultrafast` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionCreated]/session/agent/service_tier` response property for the response status `200`
  - added the new `ultrafast` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionFailed]/session/agent/service_tier` response property for the response status `200`
  - added the new `ultrafast` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionIdle]/session/agent/service_tier` response property for the response status `200`
  - added the new `ultrafast` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionInProgress]/session/agent/service_tier` response property for the response status `200`
  - added the new `ultrafast` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionRequiresAction]/session/agent/service_tier` response property for the response status `200`
- **2026-09-25** `e0550bdbb545`: 5 warning
  - added the new `misalignment_policy_violation` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `misalignment_policy_violation` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `misalignment_policy_violation` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `misalignment_policy_violation` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `misalignment_policy_violation` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
- **2026-09-19** `d4e842399c2e`: 1 breaking, 1 info
  - added `#/components/schemas/SessionEventAgentSessionEnvironmentReset` to the response body `oneOf` list for the response status `200`
  - added `agent.session.environment.reset` mapping keys to the response discriminator for the response status `200`
- **2026-09-11** `8c3c08961f62`: 5 warning
  - added the new `credit_balance_exhausted` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCancelled]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `credit_balance_exhausted` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCompleted]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `credit_balance_exhausted` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnCreated]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `credit_balance_exhausted` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnFailed]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
  - added the new `credit_balance_exhausted` enum value to the `oneOf[#/components/schemas/SessionEventAgentSessionTurnInProgress]/turn/error/anyOf[#/components/schemas/SessionTurnErrorResource]/code` response property for the response status `200`
- **2026-09-10** `f2dae1a9aced`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/openai/apis/openai-api-4/docs/agents/sessions/:session_id/events/get.md) - [API](https://skmtc.dev/openai/apis/openai-api-4.md) - [Page](https://skmtc.dev/openai/apis/openai-api-4/changes/agents/sessions/:session_id/events/get)