event-deltas changedmanaged-agents/event-deltas
Recorded here
Lines+62added
Lines−0removed
From line
8
where the diff opens
First seen
8 Oct 2026
this site's first read of the page
Recorded edits21to this page, all time
## Availability ### API support #### [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) ### Required beta headers ### Data handling
The whole hunk
from line 8, old and new numbered
/
from line 8
88 url: https://platform.claude.com/docs/en/managed-agents/overview
99 status: beta
1010 betaHeader: managed-agents-2026-04-01
11 zdr:
12 eligibility: not-eligible
13 note: Sessions are stateful resources; transcripts persist until you delete them. Applies to all Managed Agents sub-features, including Self-hosted sandboxes.
14 supportedModels:
15 - claude-fable-5-1
16 - claude-mythos-5-1
17 - claude-fable-5
18 - claude-mythos-5
19 - claude-mythos-preview
20 - claude-opus-5-5
21 - claude-opus-5
22 - claude-sonnet-5-5
23 - claude-sonnet-5
24 - claude-haiku-5-5
25 - claude-haiku-4-5-20251001
26 - claude-opus-4-8
27 - claude-opus-4-7
28 - claude-opus-4-6
29 - claude-sonnet-4-6
30 - claude-opus-4-5-20251101
31 - claude-sonnet-4-5-20250929
32 supportedPlatforms:
33 Claude API: beta
34 Claude Platform on AWS: beta
35 Claude Models on Google Cloud (Anthropic managed): beta
1136---
1237
1338By default, the agent’s response text reaches the [session event stream](https://platform.claude.com/docs/en/managed-agents/events-and-streaming) as buffered `agent.message` events. Each one is emitted only after the model request that produced it completes. Event deltas let you render that text incrementally, as a live preview, while the model is still generating it.
from line 907
882907 Coordinate multiple agents within a single session.
883908 </Card>
884909</CardGroup>
910
911## Availability
912
913Event deltas are in beta on every model.
914
915### API support
916
917#### [Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview)
918
919* Availability: Available
920
921| Status | Cloud platforms | Models |
922| ------ | ----------------------- | ----------------------------------------------------------------- |
923| Beta | All supported platforms | [All models](https://platform.claude.com/docs/en/models/overview) |
924
925### Required beta headers
926
927[Beta headers overview](https://platform.claude.com/docs/en/api/beta-headers)
928
929Beta headers allow you to access experimental features and new model capabilities before they become part of the standard API.
930
931* `managed-agents-2026-04-01`
932
933### Data handling
934
935[Data handling overview](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#feature-eligibility)
936
937| Item | Zero data retention | HIPAA |
938| ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
939| Status | Not eligible | Not eligible |
940| Details | Sessions are stateful resources; transcripts persist until you delete them. Applies to all Managed Agents sub-features, including Self-hosted sandboxes. | Applies to all Managed Agents sub-features, including Self-hosted sandboxes. |
941
942Applicable endpoints:
943
944* `/v1/agents`
945* `/v1/sessions`
946* `/v1/environments`
885947
No line in this hunk matches that.