Threads changedapi/beta/sessions/threads
Nearest release: v2.1.294, published an hour after 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+572added
Lines−12removed
From line
185
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 185, old and new numbered
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This page is larger than the 256 KiB this site keeps, so one side of the diff below stops where the stored text does.
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from line 185
185185
186186 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
187187
188 - `"claude-haiku-5-5"`
189
190 Fastest model for high-volume, real-time tasks
191
188192 - `"claude-sonnet-5-5"`
189193
190194 Efficient model for coding and agents
from line 526
522526 - `BetaManagedAgentsAutoPolicy object`
523527
524528 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
529
530 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
531
532 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
533
534 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
535
536 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
537
538 - `BetaManagedAgentsWebFetchURLSourceAll object`
539
540 Every URL from this source may be fetched. This is the default.
541
542 - `type: "all"`
543
544 - `BetaManagedAgentsWebFetchURLSourceNone object`
545
546 This source contributes no URLs that may be fetched.
547
548 - `type: "none"`
549
550 - `BetaManagedAgentsWebFetchURLSourceOnly object`
551
552 Only the named tools' results contribute URLs that may be fetched.
553
554 - `type: "only"`
555
556 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
557
558 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
559
560 - `type: "tool_reference"`
561
562 Must be "tool_reference".
563
564 - `name: string`
565
566 Name of the tool. Compared exactly, so upper and lower case letters are different.
567
568 minLength: 1, maxLength: 128
569
570 - `BetaManagedAgentsWebFetchURLSourceExcept object`
571
572 Every tool's results contribute URLs that may be fetched, except the named tools' results.
573
574 - `type: "except"`
575
576 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
577
578 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
579
580 - `type: "tool_reference"`
581
582 Must be "tool_reference".
583
584 - `name: string`
585
586 Name of the tool. Compared exactly, so upper and lower case letters are different.
587
588 minLength: 1, maxLength: 128
589
590 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
591
592 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
593
594 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
595
596 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
597
598 - `BetaManagedAgentsWebFetchURLSourceAll object`
599
600 Every URL from this source may be fetched. This is the default.
601
602 - `BetaManagedAgentsWebFetchURLSourceNone object`
603
604 This source contributes no URLs that may be fetched.
525605
526606 - `allowed_domains: optional array of string`
527607
from line 928
848928{
849929 "data": [
850930 {
851 "id": "sthr_011CZkZVWa6oIjw0rgXZpnBt",
931 "id": "sthr_011CZkZVWa6oJjw1rgXZpnBt",
852932 "agent": {
853933 "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
854934 "description": "A focused research subagent.",
from line 1146
10661146
10671147- `BetaManagedAgentsSessionThread object`
10681148
1069 An execution thread within a `session`. Each session has one primary thread plus zero or more child threads spawned by the coordinator.
1149 An execution thread within a `session`. Each session has one primary thread plus zero or more child threads.
10701150
10711151 - `type: "session_thread"`
10721152
from line 1186
11061186
11071187 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11081188
1189 - `"claude-haiku-5-5"`
1190
1191 Fastest model for high-volume, real-time tasks
1192
11091193 - `"claude-sonnet-5-5"`
11101194
11111195 Efficient model for coding and agents
from line 1527
14431527 - `BetaManagedAgentsAutoPolicy object`
14441528
14451529 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
1530
1531 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
1532
1533 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
1534
1535 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
1536
1537 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
1538
1539 - `BetaManagedAgentsWebFetchURLSourceAll object`
1540
1541 Every URL from this source may be fetched. This is the default.
1542
1543 - `type: "all"`
1544
1545 - `BetaManagedAgentsWebFetchURLSourceNone object`
1546
1547 This source contributes no URLs that may be fetched.
1548
1549 - `type: "none"`
1550
1551 - `BetaManagedAgentsWebFetchURLSourceOnly object`
1552
1553 Only the named tools' results contribute URLs that may be fetched.
1554
1555 - `type: "only"`
1556
1557 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
1558
1559 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
1560
1561 - `type: "tool_reference"`
1562
1563 Must be "tool_reference".
1564
1565 - `name: string`
1566
1567 Name of the tool. Compared exactly, so upper and lower case letters are different.
1568
1569 minLength: 1, maxLength: 128
1570
1571 - `BetaManagedAgentsWebFetchURLSourceExcept object`
1572
1573 Every tool's results contribute URLs that may be fetched, except the named tools' results.
1574
1575 - `type: "except"`
1576
1577 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
1578
1579 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
1580
1581 - `type: "tool_reference"`
1582
1583 Must be "tool_reference".
1584
1585 - `name: string`
1586
1587 Name of the tool. Compared exactly, so upper and lower case letters are different.
1588
1589 minLength: 1, maxLength: 128
1590
1591 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
1592
1593 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
1594
1595 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
1596
1597 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
1598
1599 - `BetaManagedAgentsWebFetchURLSourceAll object`
1600
1601 Every URL from this source may be fetched. This is the default.
1602
1603 - `BetaManagedAgentsWebFetchURLSourceNone object`
1604
1605 This source contributes no URLs that may be fetched.
14461606
14471607 - `allowed_domains: optional array of string`
14481608
from line 1923
17631923
17641924```json
17651925{
1766 "id": "sthr_011CZkZVWa6oIjw0rgXZpnBt",
1926 "id": "sthr_011CZkZVWa6oJjw1rgXZpnBt",
17671927 "agent": {
17681928 "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
17691929 "description": "A focused research subagent.",
from line 2138
19782138
19792139- `BetaManagedAgentsSessionThread object`
19802140
1981 An execution thread within a `session`. Each session has one primary thread plus zero or more child threads spawned by the coordinator.
2141 An execution thread within a `session`. Each session has one primary thread plus zero or more child threads.
19822142
19832143 - `type: "session_thread"`
19842144
from line 2178
20182178
20192179 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
20202180
2181 - `"claude-haiku-5-5"`
2182
2183 Fastest model for high-volume, real-time tasks
2184
20212185 - `"claude-sonnet-5-5"`
20222186
20232187 Efficient model for coding and agents
from line 2519
23552519 - `BetaManagedAgentsAutoPolicy object`
23562520
23572521 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
2522
2523 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
2524
2525 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
2526
2527 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
2528
2529 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
2530
2531 - `BetaManagedAgentsWebFetchURLSourceAll object`
2532
2533 Every URL from this source may be fetched. This is the default.
2534
2535 - `type: "all"`
2536
2537 - `BetaManagedAgentsWebFetchURLSourceNone object`
2538
2539 This source contributes no URLs that may be fetched.
2540
2541 - `type: "none"`
2542
2543 - `BetaManagedAgentsWebFetchURLSourceOnly object`
2544
2545 Only the named tools' results contribute URLs that may be fetched.
2546
2547 - `type: "only"`
2548
2549 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
2550
2551 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
2552
2553 - `type: "tool_reference"`
2554
2555 Must be "tool_reference".
2556
2557 - `name: string`
2558
2559 Name of the tool. Compared exactly, so upper and lower case letters are different.
2560
2561 minLength: 1, maxLength: 128
2562
2563 - `BetaManagedAgentsWebFetchURLSourceExcept object`
2564
2565 Every tool's results contribute URLs that may be fetched, except the named tools' results.
2566
2567 - `type: "except"`
2568
2569 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
2570
2571 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
2572
2573 - `type: "tool_reference"`
2574
2575 Must be "tool_reference".
2576
2577 - `name: string`
2578
2579 Name of the tool. Compared exactly, so upper and lower case letters are different.
2580
2581 minLength: 1, maxLength: 128
2582
2583 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
2584
2585 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
2586
2587 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
2588
2589 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
2590
2591 - `BetaManagedAgentsWebFetchURLSourceAll object`
2592
2593 Every URL from this source may be fetched. This is the default.
2594
2595 - `BetaManagedAgentsWebFetchURLSourceNone object`
2596
2597 This source contributes no URLs that may be fetched.
23582598
23592599 - `allowed_domains: optional array of string`
23602600
from line 2916
26762916
26772917```json
26782918{
2679 "id": "sthr_011CZkZVWa6oIjw0rgXZpnBt",
2919 "id": "sthr_011CZkZVWa6oJjw1rgXZpnBt",
26802920 "agent": {
26812921 "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
26822922 "description": "A focused research subagent.",
from line 3007
27673007
27683008- `BetaManagedAgentsSessionThread object`
27693009
2770 An execution thread within a `session`. Each session has one primary thread plus zero or more child threads spawned by the coordinator.
3010 An execution thread within a `session`. Each session has one primary thread plus zero or more child threads.
27713011
27723012 - `type: "session_thread"`
27733013
from line 3047
28073047
28083048 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
28093049
3050 - `"claude-haiku-5-5"`
3051
3052 Fastest model for high-volume, real-time tasks
3053
28103054 - `"claude-sonnet-5-5"`
28113055
28123056 Efficient model for coding and agents
from line 3389
31453389
31463390 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
31473391
3392 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
3393
3394 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
3395
3396 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
3397
3398 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
3399
3400 - `BetaManagedAgentsWebFetchURLSourceAll object`
3401
3402 Every URL from this source may be fetched. This is the default.
3403
3404 - `type: "all"`
3405
3406 - `BetaManagedAgentsWebFetchURLSourceNone object`
3407
3408 This source contributes no URLs that may be fetched.
3409
3410 - `type: "none"`
3411
3412 - `BetaManagedAgentsWebFetchURLSourceOnly object`
3413
3414 Only the named tools' results contribute URLs that may be fetched.
3415
3416 - `type: "only"`
3417
3418 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
3419
3420 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
3421
3422 - `type: "tool_reference"`
3423
3424 Must be "tool_reference".
3425
3426 - `name: string`
3427
3428 Name of the tool. Compared exactly, so upper and lower case letters are different.
3429
3430 minLength: 1, maxLength: 128
3431
3432 - `BetaManagedAgentsWebFetchURLSourceExcept object`
3433
3434 Every tool's results contribute URLs that may be fetched, except the named tools' results.
3435
3436 - `type: "except"`
3437
3438 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
3439
3440 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
3441
3442 - `type: "tool_reference"`
3443
3444 Must be "tool_reference".
3445
3446 - `name: string`
3447
3448 Name of the tool. Compared exactly, so upper and lower case letters are different.
3449
3450 minLength: 1, maxLength: 128
3451
3452 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
3453
3454 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
3455
3456 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
3457
3458 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
3459
3460 - `BetaManagedAgentsWebFetchURLSourceAll object`
3461
3462 Every URL from this source may be fetched. This is the default.
3463
3464 - `BetaManagedAgentsWebFetchURLSourceNone object`
3465
3466 This source contributes no URLs that may be fetched.
3467
31483468 - `allowed_domains: optional array of string`
31493469
31503470 - `blocked_domains: optional array of string`
from line 5115
47955115
47965116 - `BetaManagedAgentsSessionThreadCreatedEvent object`
47975117
4798 Emitted when a subagent is spawned as a new thread. Written to the parent thread's output stream so clients observing the session see child creation.
5118 Emitted when a child thread is created. Written to the parent thread's output stream so clients observing the session see child creation.
47995119
48005120 - `type: "session.thread_created"`
48015121
from line 5591
52715591
52725592 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
52735593
5594 - `"claude-haiku-5-5"`
5595
5596 Fastest model for high-volume, real-time tasks
5597
52745598 - `"claude-sonnet-5-5"`
52755599
52765600 Efficient model for coding and agents
from line 5965
56415965
56425966 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
56435967
5968 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
5969
5970 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
5971
5972 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
5973
5974 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
5975
5976 - `BetaManagedAgentsWebFetchURLSourceAll object`
5977
5978 Every URL from this source may be fetched. This is the default.
5979
5980 - `type: "all"`
5981
5982 - `BetaManagedAgentsWebFetchURLSourceNone object`
5983
5984 This source contributes no URLs that may be fetched.
5985
5986 - `type: "none"`
5987
5988 - `BetaManagedAgentsWebFetchURLSourceOnly object`
5989
5990 Only the named tools' results contribute URLs that may be fetched.
5991
5992 - `type: "only"`
5993
5994 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
5995
5996 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
5997
5998 - `type: "tool_reference"`
5999
6000 Must be "tool_reference".
6001
6002 - `name: string`
6003
6004 Name of the tool. Compared exactly, so upper and lower case letters are different.
6005
6006 minLength: 1, maxLength: 128
6007
6008 - `BetaManagedAgentsWebFetchURLSourceExcept object`
6009
6010 Every tool's results contribute URLs that may be fetched, except the named tools' results.
6011
6012 - `type: "except"`
6013
6014 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
6015
6016 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
6017
6018 - `type: "tool_reference"`
6019
6020 Must be "tool_reference".
6021
6022 - `name: string`
6023
6024 Name of the tool. Compared exactly, so upper and lower case letters are different.
6025
6026 minLength: 1, maxLength: 128
6027
6028 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
6029
6030 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
6031
6032 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
6033
6034 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
6035
6036 - `BetaManagedAgentsWebFetchURLSourceAll object`
6037
6038 Every URL from this source may be fetched. This is the default.
6039
6040 - `BetaManagedAgentsWebFetchURLSourceNone object`
6041
6042 This source contributes no URLs that may be fetched.
6043
56446044 - `allowed_domains: optional array of string`
56456045
56466046 - `blocked_domains: optional array of string`
from line 7801
74017801
74027802 - `BetaManagedAgentsSessionThreadCreatedEvent object`
74037803
7404 Emitted when a subagent is spawned as a new thread. Written to the parent thread's output stream so clients observing the session see child creation.
7804 Emitted when a child thread is created. Written to the parent thread's output stream so clients observing the session see child creation.
74057805
74067806 - `type: "session.thread_created"`
74077807
from line 8277
78778277
78788278 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
78798279
8280 - `"claude-haiku-5-5"`
8281
8282 Fastest model for high-volume, real-time tasks
8283
78808284 - `"claude-sonnet-5-5"`
78818285
78828286 Efficient model for coding and agents
from line 8650
82468650 - `BetaManagedAgentsAutoPolicy object`
82478651
82488652 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
8653
8654 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
8655
8656 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
8657
8658 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
8659
8660 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
8661
8662 - `BetaManagedAgentsWebFetchURLSourceAll object`
8663
8664 Every URL from this source may be fetched. This is the default.
8665
8666 - `type: "all"`
8667
8668 - `BetaManagedAgentsWebFetchURLSourceNone object`
8669
8670 This source contributes no URLs that may be fetched.
8671
8672 - `type: "none"`
8673
8674 - `BetaManagedAgentsWebFetchURLSourceOnly object`
8675
8676 Only the named tools' results contribute URLs that may be fetched.
8677
8678 - `type: "only"`
8679
8680 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
8681
8682 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
8683
8684 - `type: "tool_reference"`
8685
8686 Must be "tool_reference".
8687
8688 - `name: string`
8689
8690 Name of the tool. Compared exactly, so upper and lower case letters are different.
8691
8692 minLength: 1, maxLength: 128
8693
8694 - `BetaManagedAgentsWebFetchURLSourceExcept object`
8695
8696 Every tool's results contribute URLs that may be fetched, except the named tools' results.
8697
8698 - `type: "except"`
8699
8700 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
8701
8702 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
8703
8704 - `type: "tool_reference"`
8705
8706 Must be "tool_reference".
8707
8708 - `name: string`
8709
8710 Name of the tool. Compared exactly, so upper and lower case letters are different.
8711
8712 minLength: 1, maxLength: 128
8713
8714 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
8715
8716 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
8717
8718 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
8719
8720 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
8721
8722 - `BetaManagedAgentsWebFetchURLSourceAll object`
8723
8724 Every URL from this source may be fetched. This is the default.
8725
8726 - `BetaManagedAgentsWebFetchURLSourceNone object`
8727
8728 This source contributes no URLs that may be fetched.
82498729
82508730 - `allowed_domains: optional array of string`
82518731
from line 9086
86069086{
86079087 "data": [
86089088 {
8609 "id": "sevt_011CZkZGOp0iBcp4kaQSihUmy",
9089 "id": "sevt_011CZkZGPp1iBcp4kaQSihUm",
86109090 "content": [
86119091 {
86129092 "text": "Where is my order #1234?",
from line 9097
86179097 "processed_at": "2026-03-15T10:00:00Z"
86189098 },
86199099 {
8620 "id": "sevt_011CZkZHPq1jCdq5lbRTjiVnz",
9100 "id": "sevt_011CZkZHPq1jCdq5mbRTjiVn",
86219101 "content": [
86229102 {
86239103 "text": "Let me look up order #1234 for you.",
from line 10482
1000210482
1000310483 - `BetaManagedAgentsSessionThreadCreatedEvent object`
1000410484
10005 Emitted when a subagent is spawned as a new thread. Written to the parent thread's output stream so clients observing the session see child creation.
10485 Emitted when a child thread is created. Written to the parent thread's output stream so clients observing the session see child creation.
1000610486
1000710487 - `type: "session.thread_created"`
1000810488
from line 10958
1047810958
1047910959 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
1048010960
10961 - `"claude-haiku-5-5"`
10962
10963 Fastest model for high-volume, real-time tasks
10964
1048110965 - `"claude-sonnet-5-5"`
1048210966
1048310967 Efficient model for coding and agents
from line 11331
1084711331 - `BetaManagedAgentsAutoPolicy object`
1084811332
1084911333 The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask.
11334
11335 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
11336
11337 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
11338
11339 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
11340
11341 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
11342
11343 - `BetaManagedAgentsWebFetchURLSourceAll object`
11344
11345 Every URL from this source may be fetched. This is the default.
11346
11347 - `type: "all"`
11348
11349 - `BetaManagedAgentsWebFetchURLSourceNone object`
11350
11351 This source contributes no URLs that may be fetched.
11352
11353 - `type: "none"`
11354
11355 - `BetaManagedAgentsWebFetchURLSourceOnly object`
11356
11357 Only the named tools' results contribute URLs that may be fetched.
11358
11359 - `type: "only"`
11360
11361 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
11362
11363 The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results.
11364
11365 - `type: "tool_reference"`
11366
11367 Must be "tool_reference".
11368
11369 - `name: string`
11370
11371 Name of the tool. Compared exactly, so upper and lower case letters are different.
11372
11373 minLength: 1, maxLength: 128
11374
11375 - `BetaManagedAgentsWebFetchURLSourceExcept object`
11376
11377 Every tool's results contribute URLs that may be fetched, except the named tools' results.
11378
11379 - `type: "except"`
11380
11381 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
11382
11383 The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results.
11384
11385 - `type: "tool_reference"`
11386
11387 Must be "tool_reference".
11388
11389 - `name: string`
11390
11391 Name of the tool. Compared exactly, so upper and lower case letters are different.
11392
11393 minLength: 1, maxLength: 128
11394
11395 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
11396
11397 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
11398
11399 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
11400
11401 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
11402
11403 - `BetaManagedAgentsWebFetchURLSourceAll object`
11404
11405 Every URL from this source may be fetched. This is the default.
11406
11407 - `BetaManagedAgentsWebFetchURLSourceNone object`
11408
11409 This source contributes no URLs that may be fetched.
1085011410
1085111411 - `allowed_domains: optional array of string`
1085211412
from line 11811
1125111811
1125211812```json
1125311813{
11254 "id": "sevt_011CZkZGOp0iBcp4kaQSihUmy",
11814 "id": "sevt_011CZkZGPp1iBcp4kaQSihUm",
1125511815 "content": [
1125611816 {
1125711817 "text": "Where is my order #1234?",
1125811818
No line in this hunk matches that.