Watch-Claude-think: A real-time view into Claude Code's thinking brain (www.npmjs.com)

Watch-claude-think is an open-source CLI that gives a live, persistent view of Claude Code’s internal “thinking” across sessions, letting you watch the model’s intermediate reasoning, decisions, and debugging steps in real time. To use it enable thinking mode in Claude Code (press Tab) and run npx watch-claude-think (alternatively pnpm dlx, yarn dlx, or bunx). You can also install it globally (npm/pnpm/yarn/bun add -g) and run the command from anywhere. The tool reads active sessions from ~/.claude/projects, supports Node.js 18+, and lets you watch All Sessions or a Specific Session; session names may not always match resume names so “Watch All” is recommended if unsure. For the AI/ML community this is a practical transparency and human-in-the-loop tool: it helps you catch wrong assumptions, debug agent behavior (e.g., over-mocking, unnecessary config edits, unrelated test changes), and learn how Claude structures problem-solving and prompt context. Technical implications include improved prompt engineering, faster intervention before agents derail, and better understanding of agent-state transitions—useful for building safer, more debuggable LLM-driven development workflows. The project is MIT-licensed and intentionally surfaces the model’s internal chatter (sometimes amusing), which both aids debugging and raises questions about how much internal traceability teams should log and act upon.