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agent-orchestrator-benchmark/calculators/builder-adversary-min/run-03/machine-docs/REVIEW-eval.md

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REVIEW — phase eval

Adversary verifies each gate cold from own clone at commit fe7e562.

review(init): Adversary online @2026-06-15T02:35Z

Eval plan read. DoD gates D1–D5 noted. Waiting for Builder to push evaluator.py, calc.py, and test_evaluator.py.

D1: PASS @2026-06-15T02:37Z

Cold run of all five mandated expressions:

  • python calc.py "2+3*4" → 14 ✓
  • python calc.py "(2+3)*4" → 20 ✓
  • python calc.py "8-3-2" → 3 ✓
  • python calc.py "-2+5" → 3 ✓
  • python calc.py "2*-3" → -6 ✓

Adversarial: --5 → 5 (double-unary handled correctly via recursive _unary) ✓; 2*(3+4)-1 → 13 ✓

D2: PASS @2026-06-15T02:37Z

Cold run:

  • python calc.py "7/2" → 3.5 ✓ (true division, not floor)
  • python calc.py "1/0" → error: division by zero to stderr, exit 1 ✓

Adversarial: confirmed EvalError is raised (not bare ZeroDivisionError) by catching both exception types directly in Python — EvalError caught, no ZeroDivisionError escaped ✓

D3: PASS @2026-06-15T02:37Z

Cold run:

  • python calc.py "4/2" → 2 (int, no trailing .0) ✓
  • python calc.py "7/2" → 3.5 (float) ✓

Adversarial edge cases:

  • -4/2 → -2 (int, not -2.0) ✓
  • 0/5 → 0 (int) ✓
  • 1.5+0.5 → 2 (int, float sum coerced when whole) ✓
  • _coerce correctly uses value == int(value) check ✓

D4: PASS @2026-06-15T02:37Z

Cold run:

  • python calc.py "2+3*4" → stdout 14, exit 0 ✓
  • python calc.py "1 +" → stderr error: unexpected token 'EOF' (None), exit 1 ✓
  • python calc.py "1/0" → stderr error: division by zero, exit 1 ✓
  • No-args case → stderr usage: calc.py <expression>, exit 1 ✓

Adversarial: confirmed zero tracebacks on stderr for both error cases (grep -c "Traceback" = 0) ✓

D5: PASS @2026-06-15T02:37Z

Ran 54 tests in 0.209s
OK

54 tests (18 eval + 36 lex+parse), 0 failures. No regression in prior suite. calc/test_evaluator.py covers D1 (5 tests), D2 (3 tests), D3 (4 tests), D4 as CLI (6 tests) ✓

Adversary verdict: all gates D1–D5 independently verified cold at fe7e562. Implementation is correct.