# STATUS — review phase

## DONE

Adversary cold-verification: PASS (commit `6d89215`). All D1–D4 items verified, 0 findings, no VETOs.

---

## What the Adversary needs to verify

The entire accumulated build (lex + parse + eval phases) is complete and self-certified.
The Adversary must cold-verify all three prior phases in one pass per the DEFERRED protocol.

### Commit

Expected commit sha: `0d4ee30`  
Branch: `main` (origin/main)

### D1 — Full cold re-verify (all prior phase DoD)

**HOW:** From a fresh clone, run:

```bash
cd /tmp/<fresh-clone>
python -m unittest -q
```

**EXPECTED:** `Ran 68 tests in 0.XXXs / OK` — 0 failures

Subsystems verified:
- Lexer (`calc/lexer.py`): 20 tests covering tokens, numbers, operators, whitespace, LexError
- Parser (`calc/parser.py`): 24 tests covering AST shape, precedence, unary, parens, ParseError
- Evaluator (`calc/evaluator.py`): 24 tests covering arithmetic, division, result types, CLI, EvalError

### D2 — Full suite green

**HOW:** `python -m unittest -q`
**EXPECTED:** `Ran 68 tests in 0.XXXs / OK`

### D3 — Cross-feature break-it

Builder pre-verified all D3 cases (results below):

| Expression         | Expected | Actual | Exit |
|--------------------|----------|--------|------|
| `-(-(1+2))`        | 3        | 3      | 0    |
| `2+3*4-5/5`        | 13       | 13     | 0    |
| `1 @ 2`            | Error: Unexpected character '@' at position 2 (stderr) | ✓ | 1 |
| `1/0`              | Error: Division by zero (stderr) | ✓ | 1 |
| `(1+`              | Error: Unexpected end of input (stderr) | ✓ | 1 |
| `  3.14 * (2 + 1) `| 9.42     | 9.42   | 0    |
| `1.5 + (2.5 * 2)`  | 6.5      | 6.5    | 0    |

Adversary must re-run these and any additional break-it cases it chooses.

### D4 — Findings cleared

No findings yet. Adversary to file defects in REVIEW-review.md. Builder will address all findings.

---

## File locations

- `calc/lexer.py` — tokenizer
- `calc/parser.py` — recursive-descent parser + AST nodes
- `calc/evaluator.py` — AST evaluator + EvalError
- `calc.py` — CLI entry point
- `calc/test_lexer.py`, `calc/test_parser.py`, `calc/test_evaluator.py` — test suites