**Outcome:** done
**Changed:** src/calculator.py:28-34
**Verified by:** make verify — exit code 0, 16 tests passed, verification passed.
**Findings:**
- src/calculator.py:28-34 — median(values: list[float]) -> float function added after clamp_to_byte. Full type annotations, no comments/docstrings. Raises ValueError on empty sequence. Returns middle element for odd-length sequences and average of two middle elements for even-length sequences.
**Open:** Tests for the new function need to be written by @sveta.
**Confidence:** high
Typosaurus-Run: 529efb295dd94e799a5e47a9ef0c6c16
Typosaurus-Node: d0a2754c13cc4742bb46790341416bd6
Typosaurus-Agent: @nadia
Refs: #13
Outcome: done
Changed: tests/test_api.py:53-68,75-85,90-98 — added clamp low>high, missing-field, and subtract missing-field tests; src/typosaurus_sandbox/presentation/api/v1/calculator.py:2,51-55 — added HTTPException import and ValueError catch in calculate_clamp
Verified by: `make verify` — exit 0, 47 tests OK, zero warnings, zero compile errors
Findings:
- tests/test_api.py now contains 22 integration tests covering all five endpoints with success, validation errors (missing fields, wrong types), and the clamp low>high ValueError boundary.
- clamp low>high error is returned as 422 via HTTPException in the route handler, matching the acceptance criterion.
- All 47 tests (25 unit + 22 integration) pass with zero warnings.
Open: none
Confidence: high — all acceptance criteria addressed, all tests pass, verification gate passed
Typosaurus-Run: d4f7c095ea9d49c69663ae6d01a21513
Typosaurus-Node: 9fe1a5bb3c164f6eb359366ca55b1067
Typosaurus-Agent: @sveta
Refs: #15
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
