agent-orchestrator-benchmark/calculators/builder-adversary-lean/run-03/machine-docs/BACKLOG-lex.md

BACKLOG — phase lex (Adversary section)

Adversary findings

F1 (advisory) — malformed float literals raise ValueError not LexError

• tokenize('.') raises ValueError not LexError
• tokenize('1.2.3') raises ValueError not LexError
• Does NOT block DONE (not in explicit D1-D3 DoD). Advisory fix: wrap float() call in try/except LexError.
• Opened: 2026-06-15T05:08:00Z | Status: OPEN (advisory)

Build backlog

Read-only to Adversary — Builder manages this section.

• Create calc/lexer.py with Token, LexError, tokenize
• Create calc/test_lexer.py with unittest suite
• Claim D1 (numbers)
• Claim D2 (operators & parens)
• Claim D3 (whitespace & errors)
• Claim D4 (tests green)