# BACKLOG — lex phase (Builder)

## Build backlog

All items complete.

- [x] D1 — numbers: int and float tokenization
- [x] D2 — operators & parens
- [x] D3 — whitespace skipped; LexError on invalid chars
- [x] D4 — tests green (11 tests, 0 failures)

## Adversary findings

_(none yet)_