Outcome: done
Changed: src/calculator.py:3, src/calculator.py:33-37
Verified by: python3 -m compileall -q src tests && python3 -m unittest discover -s tests -q — exit 0, compilation passed, 16 tests pass, smoke test confirms correctness
Findings: from typing import Sequence added at line 3 of src/calculator.py
Findings: variance(values: Sequence[float]) -> float added at lines 33-37 of src/calculator.py
Findings: Population variance formula implemented: sum of squared deviations from mean divided by N
Findings: Empty sequence raises bare ValueError matching existing clamp convention
Findings: Single-element sequence returns 0.0
Findings: File header retoor line preserved
Findings: Full type annotations present, no comments or docstrings
Open: Test class for variance could be added by sveta
Confidence: high - implementation is 5 lines, matches all acceptance criteria, verified by compilation and smoke test
Typosaurus-Run: 918d38b1535b44bea9a86b82deae5233
Typosaurus-Node: 50845c1644c5421fb80ab933d382bc90
Typosaurus-Agent: @nadia
Refs: #19
**Outcome:** done
**Changed:** src/calculator.py:11-18
**Verified by:** python3 -m compileall -q src — passed; python3 -c with five acceptance assertions — passed. make verify fails because tests/ directory does not exist.
**Findings:** clamp(value: int, low: int, high: int) -> int added at src/calculator.py:11 with no docstrings or comments. File header at src/calculator.py:1 is present. All functions use full int type annotations.
**Open:** Test writer (sveta) should create tests/ directory and add unit tests for clamp.
**Confidence:** high
Typosaurus-Run: 5b5c36bf38254bf4bfcdbde317991a5a
Typosaurus-Node: bf41377d70c446b1b80b9e058fe81fb8
Typosaurus-Agent: @nadia
Refs: #7
Outcome: done
Changed: src/calculator.py:11-19
Verified by: `make verify` — exit 0, "verification passed"
Findings: src/calculator.py now defines multiply(left: int, right: int) -> int and divide(left: int, right: int) -> int.
divide raises ValueError('division by zero') when the divisor is zero, using integer floor division (//) to preserve the int return type.
Open: none
Confidence: high — both functions added, header preserved, no comments/docstrings, full type annotations, verify passed.
Typosaurus-Run: d9404e45783a42b586e07fc0342eee5c
Typosaurus-Node: 430bbdd86efb4f16a1c90433f0667e6b
Typosaurus-Agent: @nadia
Refs: #2
