◇ Could this help me?
Yes. A small set of vetted skills that make Claude Code plan first, audit security, change only what is asked, and self-test in a browser addresses real agent failure modes, and several of the named sources are reputable (Trail of Bits is a respected security firm; Superpowers is a widely adopted open-source plugin). This is a general Claude Code upgrade, not project-specific, but each skill is third-party code that runs with the agent's permissions, so research each one individually and install only after explicit approval.
Research these five Claude Code skills before any installation: Superdesign, Superpowers, the Trail of Bits security audit skill, the Karpathy skill, and the Playwright browser-testing skill. For each one, identify the official repository and publisher, explain what it does, how it is installed, and how it is typically used, and assess whether it is safe and reputable. Present those findings for review, and do not install anything until each skill receives explicit approval.