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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
One change · api

Stream Session Thread Events changedapi/beta/sessions/threads/events/stream

Nearest release: v2.1.281, published an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+12added
Lines−10removed
From line 33 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits14to this page, all time

The whole hunk

from line 33, old and new numbered
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lines
from line 33
3333 
3434 - `string`
3535 
36 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 43 more`
36 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
3737 
3838 - `"message-batches-2024-09-24"`
3939 
from line 127
127127 
128128 - `"compact-2026-09-04"`
129129 
130 - `"inline-tools-2026-09-15"`
131 
132 - `"mcp-client-2026-09-15"`
133 
130134- `"anthropic-workspace-id": optional string`
131135 
132136 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 549
545549 
546550 format: date-time
547551 
548 - `evaluated_permission: optional "allow" or "ask" or "deny"`
552 - `evaluated_permission: optional BetaManagedAgentsAgentEvaluatedPermission`
549553 
550554 AgentEvaluatedPermission enum
551555 
from line 687
683687 
684688 format: date-time
685689 
686 - `evaluated_permission: optional "allow" or "ask" or "deny"`
690 - `evaluated_permission: optional BetaManagedAgentsAgentEvaluatedPermission`
687691 
688692 AgentEvaluatedPermission enum
689693 
690 - `"allow"`
691 
692 - `"ask"`
693 
694 - `"deny"`
695 
696694 - `evaluation: optional BetaManagedAgentsAgentToolEvaluation`
697695 
698696 Names the resolved permission_policy that produced evaluated_permission, and under auto carries the judgement. Open union: clients must tolerate unknown variants.
from line 1659
16611659 
16621660 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16631661 
1664 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
1662 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
16651663 
16661664 The model that will power your agent.
16671665 
16681666 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
1667 
1668 - `"claude-opus-5-5"`
1669 
1670 Powerful intelligence for coding, knowledge work, and long-running agents
16691671 
16701672 - `"claude-fable-5-1"`
16711673 
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