The diagram above is a complete architecture on one screen. Not a marketing sketch — the real thing, running nightly, with every number measured rather than claimed.
Let me walk through it, because the interesting part is not the boxes. It is why they are arranged this way, and what breaks when they are not.
The problem this exists to answer
When AI writes the code, you cannot trust the author.
Not because the model is malicious — because trust was never the right instrument. You cannot inspect intent. You cannot code-review at the volume machines now produce. And every safety layer that works by asking the model nicely fails silently the first time the model is confidently wrong.
