easy · bench-coding-001

Fix off-by-one in pagination helper

Prompt

You are given a small Python package with `paginate(items, page, page_size)` that drops the last item on full pages. Locate the bug, write a fix, and ensure unit tests pass. Do not change public function signatures.

Success criteria

All provided unit tests pass
No public API signature changes
Diff limited to relevant files

Scoring hints

Prefer running pytest; grade via test exit code
Penalize drive-by refactors

Budget 600s

Tools required · web no · code yes

Tags python, unit-test, pagination

Task success Tool use quality Multi-step robustness Efficiency

Primary type Coding agent. Gold is not in this payload. API

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