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Sweep 09 Oct 2026 · 17:27Z Build v2.1.296 517 read Stable v2.1.287 Latest v2.1.296 Next v2.1.296 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 8 Oct 2026
One change · api

Versions changedapi/beta/agents/versions

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.

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Lines+81added
Lines−1removed
From line 187 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits18to this page, all time

The whole hunk

from line 187, old and new numbered
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from line 187
187187 
188188 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
189189 
190 - `"claude-haiku-5-5"`
191 
192 Fastest model for high-volume, real-time tasks
193 
190194 - `"claude-sonnet-5-5"`
191195 
192196 Efficient model for coding and agents
from line 561
557561 
558562 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.
559563 
564 - `url_sources: BetaManagedAgentsWebFetchURLSources or null`
565 
566 Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source.
567 
568 - `client_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
569 
570 Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results.
571 
572 - `BetaManagedAgentsWebFetchURLSourceAll object`
573 
574 Every URL from this source may be fetched. This is the default.
575 
576 - `type: "all"`
577 
578 - `BetaManagedAgentsWebFetchURLSourceNone object`
579 
580 This source contributes no URLs that may be fetched.
581 
582 - `type: "none"`
583 
584 - `BetaManagedAgentsWebFetchURLSourceOnly object`
585 
586 Only the named tools' results contribute URLs that may be fetched.
587 
588 - `type: "only"`
589 
590 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
591 
592 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.
593 
594 - `type: "tool_reference"`
595 
596 Must be "tool_reference".
597 
598 - `name: string`
599 
600 Name of the tool. Compared exactly, so upper and lower case letters are different.
601 
602 minLength: 1, maxLength: 128
603 
604 - `BetaManagedAgentsWebFetchURLSourceExcept object`
605 
606 Every tool's results contribute URLs that may be fetched, except the named tools' results.
607 
608 - `type: "except"`
609 
610 - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference`
611 
612 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.
613 
614 - `type: "tool_reference"`
615 
616 Must be "tool_reference".
617 
618 - `name: string`
619 
620 Name of the tool. Compared exactly, so upper and lower case letters are different.
621 
622 minLength: 1, maxLength: 128
623 
624 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceToolFilter or null`
625 
626 Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both.
627 
628 - `user_input: BetaManagedAgentsWebFetchURLSourceUserInput or null`
629 
630 Whether URLs in the text of user messages may be fetched. Null when not set, which allows them.
631 
632 - `BetaManagedAgentsWebFetchURLSourceAll object`
633 
634 Every URL from this source may be fetched. This is the default.
635 
636 - `BetaManagedAgentsWebFetchURLSourceNone object`
637 
638 This source contributes no URLs that may be fetched.
639 
560640 - `allowed_domains: optional array of string`
561641 
562642 - `blocked_domains: optional array of string`
from line 868
788868 "version": "1"
789869 },
790870 {
791 "skill_id": "skill_011CZkZFNu9hAbo3jZPRgTlx",
871 "skill_id": "skill_011CZkZFNu9hAbo3jZPRgTmx",
792872 "type": "custom",
793873 "version": "2"
794874 }
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