Claude Kit

Claude Kit is an engineering toolkit designed specifically for use with Claude Code, focusing on a verification-first approach to technical workflows. It addresses common pitfalls in software engineering such as unchecked "done" claims, superficial bug fixes, and vague implementation plans by enforcing evidence-based rigor at every stage. The toolkit is tailored for senior individual contributors and tech leads, emphasizing structured processes and accountability in engineering tasks.

The platform organizes its workflow around a five-phase spine: Investigate, Design, Implement, Verify, and Ship. Across these phases, it provides 15 user-invocable skills, each accompanied by rationalizations tables that list typical excuses for skipping steps along with rebuttals, as well as explicit evidence requirements and red flags. This structure ensures that every step in the process is justified and documented, with pre-completion gates that require specific artifacts before proceeding. For example, the "investigate-root-cause" skill mandates a written hypothesis before a bug fix is accepted, while the "write-plan" skill demands file paths, test commands, and clear acceptance criteria.

Claude Kit includes eight specialist agents, each focused on a particular engineering role such as planner, architect, experience reviewer, investigator, tester, code reviewer, security auditor, and scout. These agents can be invoked as needed to handle specialized tasks within the workflow. The toolkit also offers five native output styles for Claude Code—Brainstorm, Deep Research, Implementation, Review, and Token Efficient—which can be switched via configuration commands to suit the current phase or task.

Optional integrations with MCP servers are available, enabling real-time access to library documentation, persistent memory, browser automation, and structured reasoning. Installation is performed via a plugin system, and skills can be triggered automatically based on the user's activity, allowing for seamless integration into existing engineering projects. Users can also extend the toolkit by creating their own project-specific skills, agents, and modes. The focus throughout is on engineering discipline, evidence-based decision-making, and producing reviewable artifacts at every checkpoint.