1. Deming - Building Quality In: Building quality into the work, evolved from developers shifting left to AI working alongside testers.
  2. Goldratt - Diminishing A Limitation: Goldratt’s premise — a technology pays off only to the extent it diminishes a real limitation — applied here: it lifts the limit that only those who speak code can change code, with a deterministic harness as the system lever.
  3. The problems a PBC solves: The motivation for the chart — the failures a functional difference can’t detect (cheats, lucky masks, silent context-delivery gaps), and why measuring variation beats inspecting each run. Read this before Wheeler.
  4. Wheeler - Understanding Variation: Using a process behavior chart to understand variation, so ambiguity in a spec is caught before it turns into an unintended interpretation.
  5. Darmok - Harness for Claude Code: The evidence, as part of the ongoing research.