Changes to Stream Session Thread Events

Changed in 16 of the 68 revisions of this API.▲73○67

1. Sep 1, 2026d1d189d791d1○2
2. Aug 19, 20260042750ea1ee▲8○2
3. Aug 17, 2026d2b230555b7f▲32○22
4. Aug 6, 202693d8fd7d6493▲21○10
5. Jul 24, 2026a97790bd7f18○4
6. Jul 22, 20265e4a8830793b○3
7. Jun 30, 202626335fd8487a▲1○1
8. Jun 30, 20267caa9a75ddbc○2
9. Jun 9, 20262336fecb081b▲2○2
10. Jun 9, 202600259327305f○2
11. Jun 6, 2026546c704d347b▲2○10
12. May 28, 2026f9d488f9290d○2
13. May 19, 202640e330aba8bc▲1○1
14. May 13, 202688ef81f4f457▲3
15. May 13, 202680953dd6bb30▲3○3
16. May 6, 2026a4186730f56c○1

What changed

• Sep 1, 2026d1d189d791d1○2See the full diff
  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/anyOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/oneOf[#/components/schemas/BetaManagedAgentsSessionThreadAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Aug 19, 20260042750ea1ee▲8○2See the full diff
  • ▲

    added BetaManagedAgentsBashToolConfig BetaManagedAgentsEditToolConfig BetaManagedAgentsReadToolConfig BetaManagedAgentsWriteToolConfig BetaManagedAgentsGlobToolConfig BetaManagedAgentsGrepToolConfig BetaManagedAgentsWebFetchToolConfig BetaManagedAgentsWebSearchToolConfig to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/anyOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/oneOf[#/components/schemas/BetaManagedAgentsSessionThreadAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsBashToolConfig BetaManagedAgentsEditToolConfig BetaManagedAgentsReadToolConfig BetaManagedAgentsWriteToolConfig BetaManagedAgentsGlobToolConfig BetaManagedAgentsGrepToolConfig BetaManagedAgentsWebFetchToolConfig BetaManagedAgentsWebSearchToolConfig to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/anyOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/oneOf[#/components/schemas/BetaManagedAgentsSessionThreadAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items/enabled from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/anyOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/oneOf[#/components/schemas/BetaManagedAgentsSessionThreadAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items/name from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/anyOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/oneOf[#/components/schemas/BetaManagedAgentsSessionThreadAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items/permission_policy from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items/enabled from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items/name from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items/permission_policy from the response with the 200 status

    response-required-property-removed

  • ○

    added discriminator to oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/anyOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/oneOf[#/components/schemas/BetaManagedAgentsSessionThreadAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items response property for the response status 200

    response-property-discriminator-added

  • ○

    added discriminator to oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/anyOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsAgentToolset20260401]/configs/items response property for the response status 200

    response-property-discriminator-added

• Aug 17, 2026d2b230555b7f▲32○22See the full diff
  • ▲

    response property oneOf[BetaManagedAgentsAgentCustomToolUseEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentMcpToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentMcpToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentMcpToolResultEvent]/is_error list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentMcpToolUseEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentThreadMessageReceivedEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentThreadMessageReceivedEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentThreadMessageReceivedEvent]/from_agent_name list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentThreadMessageSentEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentThreadMessageSentEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentThreadMessageSentEvent]/to_agent_name list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentToolResultEvent]/is_error list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsAgentToolUseEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsSessionUpdatedEvent]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsSpanModelRequestEndEvent]/is_error list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserCustomToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserCustomToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserCustomToolResultEvent]/is_error list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserCustomToolResultEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserDefineOutcomeEvent]/max_iterations list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserInterruptEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserMessageEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserMessageEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserToolConfirmationEvent]/deny_message list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserToolConfirmationEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/context list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserToolResultEvent]/content/items/oneOf[BetaManagedAgentsDocumentBlock]/title list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserToolResultEvent]/is_error list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsUserToolResultEvent]/session_thread_id list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    the oneOf[#/components/schemas/BetaManagedAgentsUserToolConfirmationEvent]/deny_message response property's maxLength was unset from 10000 for the response status 200

    response-property-max-length-unset

  • ○

    removed BetaManagedAgentsBudget from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/budget response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaManagedAgentsBudget from the oneOf[#/components/schemas/BetaManagedAgentsSessionUsageEvent]/budget response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaManagedAgentsSessionAgent from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaManagedAgentsSpeed from the oneOf[#/components/schemas/BetaManagedAgentsSpanModelRequestEndEvent]/model_usage/allOf[#/components/schemas/BetaManagedAgentsSpanModelUsage]/speed response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaManagedAgentsSpeed from the oneOf[#/components/schemas/BetaManagedAgentsSpanOutcomeEvaluationEndEvent]/usage/allOf[#/components/schemas/BetaManagedAgentsSpanModelUsage]/speed response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaTimestamp from the oneOf[#/components/schemas/BetaManagedAgentsSystemMessageEvent]/processed_at response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaTimestamp from the oneOf[#/components/schemas/BetaManagedAgentsUserCustomToolResultEvent]/processed_at response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaTimestamp from the oneOf[#/components/schemas/BetaManagedAgentsUserInterruptEvent]/processed_at response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaTimestamp from the oneOf[#/components/schemas/BetaManagedAgentsUserMessageEvent]/processed_at response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaTimestamp from the oneOf[#/components/schemas/BetaManagedAgentsUserToolConfirmationEvent]/processed_at response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaTimestamp from the oneOf[#/components/schemas/BetaManagedAgentsUserToolResultEvent]/processed_at response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    added BetaManagedAgentsBudget subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/budget response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaManagedAgentsBudget subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUsageEvent]/budget response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaManagedAgentsSessionAgent subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaManagedAgentsSpeed subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSpanModelRequestEndEvent]/model_usage/allOf[#/components/schemas/BetaManagedAgentsSpanModelUsage]/speed response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaManagedAgentsSpeed subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSpanOutcomeEvaluationEndEvent]/usage/allOf[#/components/schemas/BetaManagedAgentsSpanModelUsage]/speed response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaTimestamp subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSystemMessageEvent]/processed_at response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaTimestamp subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsUserCustomToolResultEvent]/processed_at response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaTimestamp subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsUserInterruptEvent]/processed_at response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaTimestamp subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsUserMessageEvent]/processed_at response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaTimestamp subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsUserToolConfirmationEvent]/processed_at response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added BetaTimestamp subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsUserToolResultEvent]/processed_at response property anyOf list for the response status 200

    response-property-any-of-added

• Aug 6, 202693d8fd7d6493▲21○10See the full diff
  • ▲

    added BetaManagedAgentsSessionUsageEvent to the response body oneOf list for the response status 200

    response-body-one-of-added

  • ▲

    added BetaManagedAgentsRedactedBlock to the oneOf[#/components/schemas/BetaManagedAgentsAgentThreadMessageReceivedEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsRedactedBlock to the oneOf[#/components/schemas/BetaManagedAgentsAgentThreadMessageSentEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsRedactedBlock to the oneOf[#/components/schemas/BetaManagedAgentsUserMessageEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsSessionBudgetReached to the oneOf[#/components/schemas/BetaManagedAgentsSessionStatusIdleEvent]/stop_reason response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsSessionBudgetReached to the oneOf[#/components/schemas/BetaManagedAgentsSessionThreadStatusIdleEvent]/stop_reason response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsSessionThreadAgent BetaManagedAgentsAdvisor to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsTextBlock BetaManagedAgentsRedactedBlock to the oneOf[#/components/schemas/BetaManagedAgentsAgentMessageEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items response's property type changed from object to no type for status 200

    response-property-type-changed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsAgentMessageEvent]/content/items/text from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsAgentMessageEvent]/content/items/type from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/description from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/id from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/mcp_servers from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/name from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/skills from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/system from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/tools from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/type from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/version from the response with the 200 status

    response-required-property-removed

  • ○

    added session.usage mapping keys to the response discriminator for the response status 200

    response-body-discriminator-mapping-added

  • ○

    added the optional property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/inference_geo to the response with the 200 status

    response-optional-property-added

  • ○

    added the optional property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/budget to the response with the 200 status

    response-optional-property-added

  • ○

    added discriminator to oneOf[#/components/schemas/BetaManagedAgentsAgentMessageEvent]/content/items response property for the response status 200

    response-property-discriminator-added

  • ○

    added discriminator to oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items response property for the response status 200

    response-property-discriminator-added

  • ○

    added budget_reached discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsSessionStatusIdleEvent]/stop_reason response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added budget_reached discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsSessionThreadStatusIdleEvent]/stop_reason response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added redacted discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsAgentThreadMessageReceivedEvent]/content/items response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added redacted discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsAgentThreadMessageSentEvent]/content/items response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added redacted discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsUserMessageEvent]/content/items response property for the response status 200

    response-property-discriminator-mapping-added

  This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Jul 24, 2026a97790bd7f18○4See the full diff
  • ○

    added subschema #4 subschema #5 subschema #6 subschema #7 subschema #11 subschema #12 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #4 subschema #5 subschema #6 subschema #7 subschema #11 subschema #12 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    removed subschema #4 subschema #5 subschema #6 subschema #10 subschema #11 from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-removed

  • ○

    removed subschema #4 subschema #5 subschema #6 subschema #10 subschema #11 from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model/id response property anyOf list for the response status 200

    response-property-any-of-removed

• Jul 22, 20265e4a8830793b○3See the full diff
  • ○

    added the new optional query request parameter event_deltas[]

    new-optional-request-parameter

  • ○

    added the optional property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/effort to the response with the 200 status

    response-optional-property-added

  • ○

    added the optional property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model/effort to the response with the 200 status

    response-optional-property-added

  This revision also has 7 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Jun 30, 202626335fd8487a▲1○1See the full diff
  • ▲

    added BetaManagedAgentsEventStartEvent BetaManagedAgentsEventDeltaEvent to the response body oneOf list for the response status 200

    response-body-one-of-added

  • ○

    added event_start event_delta mapping keys to the response discriminator for the response status 200

    response-body-discriminator-mapping-added

  This revision also has 20 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

• Jun 30, 20267caa9a75ddbc○2See the full diff
  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model/id response property anyOf list for the response status 200

    response-property-any-of-added

• Jun 9, 20262336fecb081b▲2○2See the full diff
  • ▲

    added BetaManagedAgentsSystemMessageEvent to the response body oneOf list for the response status 200

    response-body-one-of-added

  • ▲

    added BetaManagedAgentsCredentialHostUnreachableError to the oneOf[#/components/schemas/BetaManagedAgentsSessionErrorEvent]/error response property oneOf list for the response status 200

    response-property-one-of-added

  • ○

    added system.message mapping keys to the response discriminator for the response status 200

    response-body-discriminator-mapping-added

  • ○

    added credential_host_unreachable_error discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsSessionErrorEvent]/error response property for the response status 200

    response-property-discriminator-mapping-added

• Jun 9, 202600259327305f○2See the full diff
  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model/id response property anyOf list for the response status 200

    response-property-any-of-added

• Jun 6, 2026546c704d347b▲2○10See the full diff
  • ▲

    response property oneOf[BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[BetaManagedAgentsSessionAgent]/multiagent/allOf[BetaManagedAgentsSessionMultiagent]/oneOf[BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/tools/items/oneOf[BetaManagedAgentsCustomTool]/input_schema/required list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ▲

    response property oneOf[BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[BetaManagedAgentsSessionAgent]/tools/items/oneOf[BetaManagedAgentsCustomTool]/input_schema/required list-of-types was widened by adding types null to media type application/json of response 200

    response-property-list-of-types-widened

  • ○

    removed BetaManagedAgentsStruct from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/properties response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    removed BetaManagedAgentsStruct from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/properties response property allOf list for the response status 200

    response-property-all-of-removed

  • ○

    added subschema #1 subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/properties response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #1 subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/properties response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    the response property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/type became required for the status 200

    response-property-became-required

  • ○

    the response property oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/type became required for the status 200

    response-property-became-required

  • ○

    the type response property const value object was added for the status 200

    response-property-const-added

  • ○

    the type response property const value object was added for the status 200

    response-property-const-added

  • ○

    removed the object enum value from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/type response property for the response status 200

    response-property-enum-value-removed

  • ○

    removed the object enum value from the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/tools/items/oneOf[#/components/schemas/BetaManagedAgentsCustomTool]/input_schema/type response property for the response status 200

    response-property-enum-value-removed

• May 28, 2026f9d488f9290d○2See the full diff
  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/model/id response property anyOf list for the response status 200

    response-property-any-of-added

  • ○

    added subschema #2 to the oneOf[#/components/schemas/BetaManagedAgentsSessionUpdatedEvent]/agent/allOf[#/components/schemas/BetaManagedAgentsSessionAgent]/multiagent/allOf[#/components/schemas/BetaManagedAgentsSessionMultiagent]/oneOf[#/components/schemas/BetaManagedAgentsSessionMultiagentCoordinator]/agents/items/model/id response property anyOf list for the response status 200

    response-property-any-of-added

• May 19, 202640e330aba8bc▲1○1See the full diff
  • ▲

    added BetaManagedAgentsUserToolResultEvent BetaManagedAgentsSessionUpdatedEvent to the response body oneOf list for the response status 200

    response-body-one-of-added

  • ○

    added user.tool_result session.updated mapping keys to the response discriminator for the response status 200

    response-body-discriminator-mapping-added

• May 13, 202688ef81f4f457▲3See the full diff
  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsAgentMcpToolResultEvent]/content/items/oneOf[#/components/schemas/BetaManagedAgentsSearchResultBlock]/tool_use_id from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsAgentToolResultEvent]/content/items/oneOf[#/components/schemas/BetaManagedAgentsSearchResultBlock]/tool_use_id from the response with the 200 status

    response-required-property-removed

  • ▲

    removed the required property oneOf[#/components/schemas/BetaManagedAgentsUserCustomToolResultEvent]/content/items/oneOf[#/components/schemas/BetaManagedAgentsSearchResultBlock]/tool_use_id from the response with the 200 status

    response-required-property-removed

• May 13, 202680953dd6bb30▲3○3See the full diff
  • ▲

    added BetaManagedAgentsSearchResultBlock to the oneOf[#/components/schemas/BetaManagedAgentsAgentMcpToolResultEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsSearchResultBlock to the oneOf[#/components/schemas/BetaManagedAgentsAgentToolResultEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ▲

    added BetaManagedAgentsSearchResultBlock to the oneOf[#/components/schemas/BetaManagedAgentsUserCustomToolResultEvent]/content/items response property oneOf list for the response status 200

    response-property-one-of-added

  • ○

    added search_result discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsAgentMcpToolResultEvent]/content/items response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added search_result discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsAgentToolResultEvent]/content/items response property for the response status 200

    response-property-discriminator-mapping-added

  • ○

    added search_result discriminator mapping keys to the oneOf[#/components/schemas/BetaManagedAgentsUserCustomToolResultEvent]/content/items response property for the response status 200

    response-property-discriminator-mapping-added

• May 6, 2026a4186730f56c○1See the full diff
  • ○

    endpoint added

    endpoint-added

  This revision also has 22 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog