Sessions changedapi/beta/sessions
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183
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from line 183
183183
184184 Replacement model. Accepts the model string, e.g. `claude-opus-5`, or a `model_config` object. Omit to use the agent's model.
185185
186 - `BetaManagedAgentsModel = string or "claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
186 - `BetaManagedAgentsModel = "claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more or string`
187187
188188 The model that will power your agent.
189189
190190 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
191191
192 - `string`
192 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
193193
194 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
195
196194 The model that will power your agent.
197195
198196 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
199197
198 - `"claude-sonnet-5-5"`
199
200 Efficient model for coding and agents
201
200202 - `"claude-opus-5-5"`
201203
202204 Powerful intelligence for coding, knowledge work, and long-running agents
from line 209
207209
208210 - `"claude-sonnet-5"`
209211
210 High-performance model for coding and agents
212 Efficient model for coding and agents
211213
212214 - `"claude-fable-5"`
213215
from line 259
257259
258260 High-performance model for agents and coding
259261
262 - `string`
263
260264 - `BetaManagedAgentsModelConfigParams object`
261265
262266 An object that defines additional configuration control over model use
from line 1195
11911195
11921196 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11931197
1194 - `string`
1198 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
11951199
1196 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1197
11981200 The model that will power your agent.
11991201
12001202 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
12011203
1204 - `"claude-sonnet-5-5"`
1205
1206 Efficient model for coding and agents
1207
12021208 - `"claude-opus-5-5"`
12031209
12041210 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1215
12091215
12101216 - `"claude-sonnet-5"`
12111217
1212 High-performance model for coding and agents
1218 Efficient model for coding and agents
12131219
12141220 - `"claude-fable-5"`
12151221
from line 1265
12591265
12601266 High-performance model for agents and coding
12611267
1268 - `string`
1269
12621270 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
12631271
12641272 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 2508
25002508
25012509 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
25022510
2503 - `string`
2511 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
25042512
2505 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
2506
25072513 The model that will power your agent.
25082514
25092515 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
25102516
2517 - `"claude-sonnet-5-5"`
2518
2519 Efficient model for coding and agents
2520
25112521 - `"claude-opus-5-5"`
25122522
25132523 Powerful intelligence for coding, knowledge work, and long-running agents
from line 2528
25182528
25192529 - `"claude-sonnet-5"`
25202530
2521 High-performance model for coding and agents
2531 Efficient model for coding and agents
25222532
25232533 - `"claude-fable-5"`
25242534
from line 2578
25682578
25692579 High-performance model for agents and coding
25702580
2581 - `string`
2582
25712583 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
25722584
25732585 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 3747
37353747
37363748 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
37373749
3738 - `string`
3750 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
37393751
3740 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
3741
37423752 The model that will power your agent.
37433753
37443754 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
37453755
3756 - `"claude-sonnet-5-5"`
3757
3758 Efficient model for coding and agents
3759
37463760 - `"claude-opus-5-5"`
37473761
37483762 Powerful intelligence for coding, knowledge work, and long-running agents
from line 3767
37533767
37543768 - `"claude-sonnet-5"`
37553769
3756 High-performance model for coding and agents
3770 Efficient model for coding and agents
37573771
37583772 - `"claude-fable-5"`
37593773
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38033817
38043818 High-performance model for agents and coding
38053819
3820 - `string`
3821
38063822 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
38073823
38083824 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 5458
54425458
54435459 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
54445460
5445 - `string`
5461 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
54465462
5447 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
5448
54495463 The model that will power your agent.
54505464
54515465 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
54525466
5467 - `"claude-sonnet-5-5"`
5468
5469 Efficient model for coding and agents
5470
54535471 - `"claude-opus-5-5"`
54545472
54555473 Powerful intelligence for coding, knowledge work, and long-running agents
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54605478
54615479 - `"claude-sonnet-5"`
54625480
5463 High-performance model for coding and agents
5481 Efficient model for coding and agents
54645482
54655483 - `"claude-fable-5"`
54665484
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55105528
55115529 High-performance model for agents and coding
55125530
5531 - `string`
5532
55135533 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
55145534
55155535 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 6838
68186838
68196839 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
68206840
6821 - `string`
6841 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
68226842
6823 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
6824
68256843 The model that will power your agent.
68266844
68276845 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
68286846
6847 - `"claude-sonnet-5-5"`
6848
6849 Efficient model for coding and agents
6850
68296851 - `"claude-opus-5-5"`
68306852
68316853 Powerful intelligence for coding, knowledge work, and long-running agents
from line 6858
68366858
68376859 - `"claude-sonnet-5"`
68386860
6839 High-performance model for coding and agents
6861 Efficient model for coding and agents
68406862
68416863 - `"claude-fable-5"`
68426864
from line 6908
68866908
68876909 High-performance model for agents and coding
68886910
6911 - `string`
6912
68896913 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
68906914
68916915 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 7996
79727996
79737997 Replacement model. Accepts the model string, e.g. `claude-opus-5`, or a `model_config` object. Omit to use the agent's model.
79747998
7975 - `BetaManagedAgentsModel = string or "claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
7999 - `BetaManagedAgentsModel = "claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more or string`
79768000
79778001 The model that will power your agent.
79788002
79798003 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
79808004
7981 - `string`
8005 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
79828006
7983 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
7984
79858007 The model that will power your agent.
79868008
79878009 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
79888010
8011 - `"claude-sonnet-5-5"`
8012
8013 Efficient model for coding and agents
8014
79898015 - `"claude-opus-5-5"`
79908016
79918017 Powerful intelligence for coding, knowledge work, and long-running agents
from line 8022
79968022
79978023 - `"claude-sonnet-5"`
79988024
7999 High-performance model for coding and agents
8025 Efficient model for coding and agents
80008026
80018027 - `"claude-fable-5"`
80028028
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80478073 High-performance model for agents and coding
80488074
8075 - `string`
8076
80498077 - `BetaManagedAgentsModelConfigParams object`
80508078
80518079 An object that defines additional configuration control over model use
from line 8368
83408368
83418369 - `BetaManagedAgentsAutoPolicy object`
83428370
8343 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.
8344
8345 - `BetaManagedAgentsGrepToolConfigParams object`
8346
8347 Configuration override for the grep tool.
8348
8349 - `type: optional "grep"`
8350
8351 - `name: "grep"`
8352
8353 Must be "grep".
8354
8355 - `enabled: optional boolean or null`
8356
8357 Whether this tool is enabled and available to Claude. Overrides the default_config setting.
8358
8359 - `permission_policy: optional BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy or null`
8360
8361 Permission p
8371 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 j
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