Agents changedapi/beta/agents
Nearest release: v2.1.322, published 2 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.
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Lines+73added
Lines−3removed
From line
129
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First seen
14 Aug 2026
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Recorded edits29to this page, all time
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from line 129, old and new numbered
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from line 129
129129
130130 - `"webhooks-2026-10-07"`
131131
132 - `"admin-user-sign-out-2026-10-08"`
133
132134 - `"message-threads-2026-08-12"`
133135
134136 - `"analytics-usage-cost-2026-08-24"`
from line 149
147149
148150 Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview?sdk_languages=http#latest-models-comparison), e.g. `claude-opus-5-5`, or a `model_config` object for additional configuration control
149151
150 - `BetaManagedAgentsModel = "claude-haiku-5-5" or "claude-sonnet-5-5" or "claude-opus-5-5" or 14 more or string`
152 - `BetaManagedAgentsModel = "claude-fable-5-2" or "claude-haiku-5-5" or "claude-sonnet-5-5" or 15 more or string`
151153
152154 The model that will power your agent.
153155
154156 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
155157
158 - `"claude-fable-5-2"`
159
160 Built for the most ambitious work in coding, enterprise workflows, and the sciences
161
156162 - `"claude-haiku-5-5"`
157163
158164 Fastest model for high-volume, real-time tasks
from line 1159
11531159
11541160 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11551161
1162 - `"claude-fable-5-2"`
1163
1164 Built for the most ambitious work in coding, enterprise workflows, and the sciences
1165
11561166 - `"claude-haiku-5-5"`
11571167
11581168 Fastest model for high-volume, real-time tasks
from line 1904
18941904 "metadata": {
18951905 "foo": "bar"
18961906 },
1907 "multiagent": {
1908 "type": "multiagent_20261001",
1909 "workflows": {
1910 "type": "enabled"
1911 }
1912 },
18971913 "system": "You are a general-purpose agent that can research, write code, run commands, and use connected tools to complete the user'\''s task end to end.",
18981914 "tools": [
18991915 {
from line 2173
21572173
21582174 - `"webhooks-2026-10-07"`
21592175
2176 - `"admin-user-sign-out-2026-10-08"`
2177
21602178 - `"message-threads-2026-08-12"`
21612179
21622180 - `"analytics-usage-cost-2026-08-24"`
from line 2251
22332251
22342252 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
22352253
2254 - `"claude-fable-5-2"`
2255
2256 Built for the most ambitious work in coding, enterprise workflows, and the sciences
2257
22362258 - `"claude-haiku-5-5"`
22372259
22382260 Fastest model for high-volume, real-time tasks
from line 3239
32173239
32183240 - `"webhooks-2026-10-07"`
32193241
3242 - `"admin-user-sign-out-2026-10-08"`
3243
32203244 - `"message-threads-2026-08-12"`
32213245
32223246 - `"analytics-usage-cost-2026-08-24"`
from line 3317
32933317
32943318 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
32953319
3320 - `"claude-fable-5-2"`
3321
3322 Built for the most ambitious work in coding, enterprise workflows, and the sciences
3323
32963324 - `"claude-haiku-5-5"`
32973325
32983326 Fastest model for high-volume, real-time tasks
from line 4288
42604288
42614289 - `"webhooks-2026-10-07"`
42624290
4291 - `"admin-user-sign-out-2026-10-08"`
4292
42634293 - `"message-threads-2026-08-12"`
42644294
42654295 - `"analytics-usage-cost-2026-08-24"`
from line 4358
43284358
43294359 Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview?sdk_languages=http#latest-models-comparison), e.g. `claude-opus-5-5`, or a `model_config` object for additional configuration control. Omit to preserve. Cannot be cleared.
43304360
4331 - `BetaManagedAgentsModel = "claude-haiku-5-5" or "claude-sonnet-5-5" or "claude-opus-5-5" or 14 more or string`
4361 - `BetaManagedAgentsModel = "claude-fable-5-2" or "claude-haiku-5-5" or "claude-sonnet-5-5" or 15 more or string`
43324362
43334363 The model that will power your agent.
43344364
43354365 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
43364366
4367 - `"claude-fable-5-2"`
4368
4369 Built for the most ambitious work in coding, enterprise workflows, and the sciences
4370
43374371 - `"claude-haiku-5-5"`
43384372
43394373 Fastest model for high-volume, real-time tasks
from line 5324
52905324
52915325 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
52925326
5327 - `"claude-fable-5-2"`
5328
5329 Built for the most ambitious work in coding, enterprise workflows, and the sciences
5330
52935331 - `"claude-haiku-5-5"`
52945332
52955333 Fastest model for high-volume, real-time tasks
from line 6301
62636301
62646302 - `"webhooks-2026-10-07"`
62656303
6304 - `"admin-user-sign-out-2026-10-08"`
6305
62666306 - `"message-threads-2026-08-12"`
62676307
62686308 - `"analytics-usage-cost-2026-08-24"`
from line 6379
63396379
63406380 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
63416381
6382 - `"claude-fable-5-2"`
6383
6384 Built for the most ambitious work in coding, enterprise workflows, and the sciences
6385
63426386 - `"claude-haiku-5-5"`
63436387
63446388 Fastest model for high-volume, real-time tasks
from line 7299
72557299
72567300 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
72577301
7302 - `"claude-fable-5-2"`
7303
7304 Built for the most ambitious work in coding, enterprise workflows, and the sciences
7305
72587306 - `"claude-haiku-5-5"`
72597307
72607308 Fastest model for high-volume, real-time tasks
from line 8235
81878235
81888236 - `BetaManagedAgentsAutoPolicy object`
81898237
8190 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.
8191
8192 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
8193
8194 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
8195
8196 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
8197
8198 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
8199
8200 - `BetaManagedAgentsWebFetchURLSourceAll object`
8201
8202 Every URL from this source may be fetched. This is the default.
8203
8204 - `type: "all"`
8205
8206 - `BetaManagedAgentsWebFetchURLSourceNone object`
8207
8208 This source contributes no URLs that may be fetched.
8209
8210 - `type: "none"`
8211
8212 - `BetaManagedAgentsWebFetchURLSourceOnly object`
8213
8214 Only the named tools' results contribute URLs that may be fetched.
8215
8216 - `type: "only"`
8217
8218 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
8219
8220 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.
8221
8222 - `type: "tool_reference"`
8223
8224 Must be "tool_reference"
8238 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 whe
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