This gives Claude a framework for showing its work on complex problems instead of jumping straight to answers. You get iterative reasoning where it can revise earlier conclusions, branch into alternative approaches, or adjust how many steps it thinks it needs as understanding develops. Most useful when you're dealing with architectural decisions, debugging gnarly issues, or problems where the scope isn't obvious upfront. The revision and branching capabilities mean it can backtrack when assumptions break rather than plowing forward on faulty logic. Skip it for straightforward queries, but for multi-stage analysis where the path isn't clear, having structured thought steps with context beats a single monolithic response.
npx skills add https://github.com/mrgoonie/claudekit-skills --skill sequential-thinking