Engineering Essentials
The prompts, skills, and configs software engineers reach for daily: reviews that catch real bugs, debugging that finds root causes, and refactors that ship safely.
Explain at Five Levels
Understand any concept via five explanations, from a child's level to expert.
Senior Code Reviewer
Get a staff-engineer-level review of any diff or file, ranked by severity.
CLAUDE.md for Next.js Apps
A battle-tested CLAUDE.md template for Next.js App Router projects.
Test-First Bugfix
Force your agent to reproduce every bug with a failing test before fixing it.
Root-Cause Debugger
Stop guessing at fixes — isolate the actual cause of a bug step by step.
Plain-English → SQL Query Builder
Describe what you want in English, get correct SQL for your actual schema.
Conventional Commit Writer
A SKILL.md that makes your agent write clean conventional commits, every time.
CLAUDE.md for Python APIs
FastAPI/Django-ready CLAUDE.md with typing, testing, and migration guardrails.
Pre-Commit Security Check
A last-line security sweep your agent runs before every commit.
Incremental Refactoring Planner
Plan a refactor as safe, shippable steps — each one leaving the code working.
Codebase Onboarding Guide
Explains any unfamiliar codebase top-down: entry points, data flow, and the weird parts.
CLAUDE.md for MVPs & Prototypes
Speed-first agent rules for pre-product-market-fit code.