The code execution tool now supports code_execution_20260521, which discloses the 90-second per-cell…

Thursday, 11 June 2026

AI summary

Written by AI from the official notes. Check them for exact details.

The code execution tool now has a time limit disclosure, and web tools have a new parameter for result management.

Code execution tool supports code_execution_20260521 with 90-second execution limit disclosure.
Web search and fetch tools support web_search_20260318 and web_fetch_20260318.
New response_inclusion parameter allows dropping consumed result blocks.

Why it matters: Developers and users of Claude should care for improved execution management and streamlined web tool responses.

The code execution tool now supports code_execution_20260521, which discloses the 90-second per-cell execution time limit in the tool description so Claude can budget long-running cells. No beta header is required.
The web search tool and web fetch tool now support web_search_20260318 and web_fetch_20260318, adding a response_inclusion parameter to drop consumed result blocks from the API response for agentic workflows. No beta header is required.

Thursday, 11 June 2026

Written by AI from the official notes. Check them for exact details.

The code execution tool now has a time limit disclosure, and web tools have a new parameter for result management.

Code execution tool supports code_execution_20260521 with 90-second execution limit disclosure.
Web search and fetch tools support web_search_20260318 and web_fetch_20260318.
New response_inclusion parameter allows dropping consumed result blocks.

Why it matters: Developers and users of Claude should care for improved execution management and streamlined web tool responses.

The code execution tool now supports code_execution_20260521, which discloses the 90-second per-cell execution time limit in the tool description so Claude can budget long-running cells. No beta header is required.
The web search tool and web fetch tool now support web_search_20260318 and web_fetch_20260318, adding a response_inclusion parameter to drop consumed result blocks from the API response for agentic workflows. No beta header is required.