The "think" tool: Enabling Claude to stop and think \ Anthropic
anthropic.com · 2,310 words · saved by 1 readers
A blog post for developers, describing a new method for complex tool-use situations
Extended thinking update Dec 15, 2025 Extended thinking capabilities have improved since its initial release, such that we recommend using that feature instead of a dedicated think tool in most cases. Extended thinking provides similar benefits—giving Claude space to reason through complex problems—with better integration and performance. See our extended thinking documentation for implementation details. As we continue to enhance Claude's complex problem-solving abilities, we've discovered a particularly effective approach: a "think" tool that creates dedicated space for structured thinking d
related reading
- Claude's extended thinking \ Anthropicanthropic.com
- Tracing the thoughts of a large language model \ Anthropicanthropic.com
- Best practices for Claude Code - Claude Code Docsanthropic.com
- Turn Claude From a Chatbot Into a Thinking Partner 🧠substack.com
- A Guide to Claude Code 2.0 and getting better at using coding agents – sankalp's blogsankalp.bearblog.dev
- Extended thinkingdocs.claude.com
- Prompting best practicesdocs.anthropic.com
- How I Use Claude Code | Philipp Spiessspiess.dev
- Don’t Outsource Your Thinkingteltam.github.io
- As Rocks May Think | Eric Jangevjang.com
- How we built our multi-agent research system \ Anthropicanthropic.com
- Effective harnesses for long-running agents \ Anthropicanthropic.com