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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 14 Oct 2026
One change · api

Create Session changedapi/beta/sessions/create

Nearest release: v2.1.300, published 6 hours 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+40added
Lines−0removed
From line 119 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits22to this page, all time

The whole hunk

from line 119, old and new numbered
/
lines
from line 119
119119 
120120 - `"spend-limit-reads-2026-09-26"`
121121 
122 - `"telemetry-destinations-2026-08-11"`
123 
122124- `"anthropic-workspace-id": optional string`
123125 
124126 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 1271
12691271 
12701272 - `description: string or null`
12711273 
1274 - `execution_identity: BetaManagedAgentsExecutionIdentity`
1275 
1276 Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal.
1277 
1278 - `BetaManagedAgentsAWSRoleExecutionIdentity object`
1279 
1280 An AWS IAM role principal as returned in API responses.
1281 
1282 - `type: "aws_role"`
1283 
1284 - `role_arn: string`
1285 
1286 The IAM role's ARN.
1287 
1288 - `BetaManagedAgentsServiceAccountExecutionIdentity object`
1289 
1290 The Anthropic-managed service account as returned in API responses.
1291 
1292 - `type: "service_account"`
1293 
12721294 - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition`
12731295 
12741296 - `type: "url"`
from line 1449
14271449 
14281450 - `description: string or null`
14291451 
1452 - `execution_identity: BetaManagedAgentsExecutionIdentity`
1453 
1454 Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal.
1455 
14301456 - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition`
14311457 
14321458 - `type: "url"`
from line 1999
19731999 
19742000 - `description: string or null`
19752001 
2002 - `execution_identity: BetaManagedAgentsExecutionIdentity`
2003 
2004 Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal.
2005 
19762006 - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition`
19772007 
19782008 - `model: BetaManagedAgentsModelConfig`
from line 2051
20212051 
20222052 - `description: string or null`
20232053 
2054 - `execution_identity: BetaManagedAgentsExecutionIdentity`
2055 
2056 Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal.
2057 
20242058 - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition`
20252059 
20262060 - `model: BetaManagedAgentsModelConfig`
from line 2427
23932427 "agent": {
23942428 "id": "agent_011CZkYpogX7uDKUyvBTophP",
23952429 "description": "A general-purpose starter agent.",
2430 "execution_identity": {
2431 "type": "service_account"
2432 },
23962433 "mcp_servers": [
23972434 {
23982435 "name": "example-mcp",
from line 2450
24132450 {
24142451 "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
24152452 "description": "A focused research subagent.",
2453 "execution_identity": {
2454 "type": "service_account"
2455 },
24162456 "mcp_servers": [
24172457 {
24182458 "name": "example-mcp",
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