# Phase `review` — comprehensive deferred verification

No new features. The Builder has self-certified `lex`, `parse`, and `eval` and accumulated the whole
calculator. The Adversary now does its **one comprehensive cold-verification** of the entire build —
the single adversary gate in the run.

## Definition of Done

- **D1 — full cold re-verify.** From a FRESH clone, the Adversary re-runs **every DoD item from every
  prior phase** (tokenizer, parser AST shape, evaluator + CLI) and confirms each passes.
- **D2 — full suite green.** `python -m unittest` passes, 0 failures.
- **D3 — cross-feature break-it.** Hunt interactions across lex→parse→eval that a per-gate view
  misses: nested unary + parens (`-(-(1+2))`→3), precedence chains (`2+3*4-5/5`→13), error
  propagation lexer→evaluator (`1 @ 2`, `1/0`, `(1+` all error cleanly), whitespace + floats + parens
  together, CLI exit codes for valid vs invalid. File any defect.
- **D4 — findings cleared.** Every finding fixed by the Builder + re-verified PASS; no standing
  `## VETO`.

## How it works

The Adversary records its comprehensive verdict in `machine-docs/REVIEW-review.md`
(`review(all): PASS`, or findings with repro). The Builder fixes anything found, then writes
`## DONE` to `machine-docs/STATUS-review.md` only after the Adversary's comprehensive PASS.