I passed Claude Certified Architect Foundations (CCAF) with 910/1000 on 15 July 2026, and I'm the first at my company to finish it. I open-sourced the study notes I built: github.com/ahmdhsn-dev/ccaf-study-guide.
CCAF is scenario-heavy: you pick the right architecture when an agent forgets context, a generic tool keeps misfiring, or a customer escalation lands mid-process. The official guide covers all of it, but it's dense. The repo distills 30 exam tasks across 5 domains into two complementary views: what to do (patterns and traps) and what not to do (anti-patterns).
What's inside: a one-page concept map, a trap taxonomy (why wrong answers sound right), and an anti-patterns catalog that maps every "avoid / do not / instead of" warning from the official guide. If a distractor sounds plausible, check the traps first; if it sounds like a shortcut the guide rejects, check the anti-patterns.
Use it as your last cheat sheet, not your textbook. Take a mock first to see where you stand, then study the official guide and use the repo to close the gaps.
Start here
