Claude Code as a Daily Driver: Claude.md, Skills, Subagents, Plugins, and MCPs

Summary

Claude Code is one of those tools where the difference between a casual user and someone who has internalized it is enormous. The casual user types prompts, accepts suggestions, and treats it like a fancier autocomplete. The daily driver uses it like a programmable agent with memory, custom commands, parallel sessions, and a project setup that compounds over time. This guide is for the second kind of person, assuming you already know what claude does when you type it in a terminal. 1. Claude Code Beyond the Basics#Once you stop thinking of Claude Code as a prompt-and-wait chatbot and start treating it as an autonomous agent that needs guardrails, your workflow shifts. The single most important principle from Boris Cherny and the Anthropic team: give Claude a way to verify its own work. Without that, you are the only feedback loop. With it, Claude iterates until things actually work, and Boris says this alone gives a 2-3x quality improvement.A few patterns that change how you operate day to day:Explore, then plan, then code. Plan mode (Shift+Tab twice) puts Claude into read-only exploration. Read files, trace flows, understand the data model. Then get a plan. Then execute. Skip planning for small fixes; use it for anything touching more than one file.Use plan mode like a design document. Have one Claude write the plan, then spin up a second Claude in a fresh session to review it as a staff engineer, with no context bias, so it actually catches gaps. If implementation goes sideways, go back to plan mode and re-plan with verification steps included.Reference, do not describe. Instead of “look at the auth module”, type @src/auth/login.py. Instead of pasting an error, pipe it: cat error.log | claude. Exact context beats approximate description every time.Delegate, do not pair-program. Cat Wu (Claude Code team): “The model performs best if you treat it like an engineer you’re delegating to, not a pair programmer you’re guiding line by line.” Write a crisp brief upfront, t...