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- Fundamentals
Reviewing code you did not write
You are going to merge a lot of code you did not type. Reviewing it is a different skill from writing it, and it is the one that actually keeps a vibe-coded…
Intermediate - Fundamentals
Row level security is the security boundary
If your database rows are protected by a check in your application code, they are not protected. Anything holding a key can talk to the database directly, an…
Expert - Context engineering
Why your AI keeps forgetting what you told it
Models have a context window, a fixed budget of text they can consider at once. Everything competes for it: your instructions, the files you opened, the erro…
Intermediate