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Explore practical guides, step-by-step masterclasses, and foundational definitions across AI, SQL, and data systems — written in plain, human English.
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How to write a CLAUDE.md or AGENTS.md file so Claude Code follows your rules
Part 6 of the Claude Code tutorial. How CLAUDE.md, AGENTS.md, README, and related instruction files split work between humans and agents, with a sample CLAUDE.md skeleton and the…
What does bad data mean? How to name the problem so you can fix it
Bad data is a shrug, not a diagnosis. Learn five practical quality dimensions (completeness, accuracy, consistency, timeliness, uniqueness) with workplace examples so you name the failure mode before…
How to give ChatGPT Work its first task and approve each step
Part 2 walks one low-risk agentic task with approvals: owned notes into a short status deck, tight tool access, and human review before anything leaves your desk. First…
What Claude Code remembers between sessions, and what it forgets
Part 5 of the Claude Code tutorial. Chat resets with /clear or a new session, CLAUDE.md reloads every time, auto memory can carry learnings if you verify it…
Jupyter notebooks or Python scripts: which to share with your teammates
Notebooks help you explore. Scripts help you repeat. Learn when to stay in a notebook, when to graduate to a .py file, and how to hand work to…
