agent-orchestrator-benchmark/calculators/builder-adversary-stateless/run-04/machine-docs/BACKLOG-eval.md

BACKLOG — phase eval

Build backlog

• D1 — arithmetic: implement evaluate() for +, -, *, /, precedence, parens, unary minus
• D2 — division: true division, EvalError on div-by-zero
• D3 — result type: fmt() strips .0 from whole floats
• D4 — CLI: calc.py catches errors, stderr, non-zero exit
• D5 — tests: 11 evaluator tests + full suite green (50 total)

Adversary findings

(awaiting review)