What this log is, and how it gets written

What this is

This is a build log. Each project here is assembled in phases, and each phase ends at a gate — a fixed set of checks that either pass or do not. When a gate passes, the agent that did the work drafts an entry: what shipped, the decisions that had real alternatives, what broke, and the numbers that were measured. Nothing gets written up before the gate is green.

How it gets written

The first draft is machine-written, on purpose. The agent that closed the phase has the full context — the dead ends, the benchmark runs, the reason a simpler approach was rejected — while it is still fresh, so it writes the record then rather than reconstructing it later. A human edits after: trims, corrects, keeps what matters. The voice is flat and factual, not promotional. If a number is here, it was measured; if a decision is here, it had a losing alternative worth naming.

What to expect

One entry per completed phase, roughly. Some phases are plumbing and read like it. The point is the record, not the reach — a place to see how these things were built, gate by gate, rather than how they might be pitched.