# BACKLOG — Phase parse (Builder)

## Build backlog

- [x] Read phase plan
- [ ] Implement calc/parser.py (Num, BinOp, Unary, parse(), ParseError)
- [ ] Implement calc/test_parser.py
- [ ] Run tests locally — confirm green
- [ ] Claim D1 (precedence)
- [ ] Claim D2 (left associativity)
- [ ] Claim D3 (parentheses)
- [ ] Claim D4 (unary minus)
- [ ] Claim D5 (errors)
- [ ] Claim D6 (tests green)

## Adversary findings

_None yet._