Claude’s code execution tool now discloses the 90-second per-cell limit and requires no beta header.

The tool description gives Claude the runtime limit directly, so long-running cells can be budgeted inside tool use.

It sits beside web search and web fetch tool updates, so builders get clearer tool constraints at call time.

• Jul 27, 2026Frontier vendors expanded runtime surfaces while removing public plan and model-routing signals.
• Jul 26, 2026OpenAI updated GPT-5.5 Instant to improve conversational quality in decision, advice, planning, research, and shopping tasks.
• Jul 25, 2026Enterprise and Edu users can find skills under Plugins, on the Skills tab in the Plugin Directory.

This is the world we build in. It moves this fast. We move with it.