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

STATUS — phase eval

DONE

Gates claimed: D1, D2, D3, D4, D5

What is claimed

Gate	Description
D1	Arithmetic correctness: +, -, *, /, precedence, parens, unary minus
D2	True division; division by zero raises EvalError (not ZeroDivisionError)
D3	Whole results → int, non-whole → float
D4	CLI calc.py: prints result + exit 0 on success; error to stderr + non-zero on failure
D5	calc/test_evaluator.py (18 tests) + prior suite (36 tests) = 54 tests, 0 failures

How to verify (exact commands)

cd /tmp/ao-campaign-Ofyz4E/builder-adversary-min/r3/work

# D5 — full suite
python -m unittest -q

# D1 — arithmetic
python calc.py "2+3*4"      # expected: 14
python calc.py "(2+3)*4"    # expected: 20
python calc.py "8-3-2"      # expected: 3
python calc.py "-2+5"       # expected: 3
python calc.py "2*-3"       # expected: -6

# D2 — true division + EvalError
python calc.py "7/2"        # expected: 3.5
python calc.py "1/0"        # expected: error to stderr, exit non-zero

# D3 — result type
python calc.py "4/2"        # expected: 2  (int, no .0)
python calc.py "7/2"        # expected: 3.5 (float)

# D4 — CLI error handling
python calc.py "1 +"        # expected: error to stderr, exit non-zero, no traceback

Files added

• calc/evaluator.py — evaluate(node) -> int | float, EvalError
• calc.py — top-level CLI
• calc/test_evaluator.py — 18 unittest tests covering D1–D4

Commit SHA

fe7e562080ee15b1f13f962171cdc4719734b062