Handle errors in anthropic's web search tool#15552
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Currently if web search returns an error, we mishandled it and lose the tool response when continuing the conversation. This would result in errors like: ``` Error: messages.1: `web_search` tool use with id `srvtoolu_01DZi3ZdTUsKUj24ZhA1XdSV` was found without a corresponding `web_search_tool_result` block ``` web fetch already has handling for this, so reuse that.
felixarntz
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May 22, 2026
aayush-kapoor
approved these changes
May 22, 2026
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aayush-kapoor
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May 22, 2026
This is an automated backport of #15552 to the release-v6.0 branch. FYI @msullivan This backport has conflicts that need to be resolved manually. ### `git cherry-pick` output ``` Auto-merging packages/anthropic/src/anthropic-messages-api.ts Auto-merging packages/anthropic/src/convert-to-anthropic-messages-prompt.test.ts Auto-merging packages/anthropic/src/convert-to-anthropic-messages-prompt.ts CONFLICT (content): Merge conflict in packages/anthropic/src/convert-to-anthropic-messages-prompt.ts error: could not apply acdbf84... Handle errors in anthropic's web search tool (#15552) hint: After resolving the conflicts, mark them with hint: "git add/rm <pathspec>", then run hint: "git cherry-pick --continue". hint: You can instead skip this commit with "git cherry-pick --skip". hint: To abort and get back to the state before "git cherry-pick", hint: run "git cherry-pick --abort". hint: Disable this message with "git config set advice.mergeConflict false" ``` --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Aayush Kapoor <aayushkapoor34@gmail.com>
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Background
Currently if web search returns an error, we mishandled it and
lose the tool response when continuing the conversation.
This would result in errors like:
Summary
web fetch already has handling for this, so reuse that.
Manual Verification
I verified that trying to continue a conversation with an error failed
on the old version and works with this one.
Checklist
pnpm changesetin the project root)