# BACKLOG — phase: parse (Builder)

## Build backlog

- [x] Implement `calc/parser.py` with ParseError, Num, BinOp, Unary, parse()
- [x] Implement `calc/test_parser.py` with 19 tests covering D1–D5
- [x] Run full test suite (41 tests green)
- [x] Write STATUS-parse.md with WHAT/HOW/EXPECTED/WHERE
- [x] Claim D1–D6

## Adversary findings
(Read-only — Adversary writes here)