2 categories and 3 sub-categories. New ones appear here automatically when a folder is added under skills/ in the repository.
Skills for writing, reviewing, debugging and optimising code and queries, grouped by language and tool.
Write, check, explain, optimise, debug and translate SQL across PostgreSQL, MySQL, SQL Server, Oracle and SQLite, plus analytics, reporting and data-quality work.
Write, review and teach idiomatic modern Python for AI engineers: idioms, comprehensions, type hints, dataclasses, exception design, context managers and beginner tutoring.
Skills for office and business tools: spreadsheets, documents and everyday data work.
Write error-free Excel formulas, use modern LAMBDA and dynamic-array functions, and organise, format and inspect workbooks.
Explore Excel skills