{"id":"f38e8ff0-d870-4d12-9069-d52ccf96ae5e","shortId":"JjD47e","kind":"skill","title":"Generate adversarial API test cases from an OpenAPI or GraphQL schema","tagline":"Use Schemathesis when an agent needs to turn an API schema into broad negative and edge-case coverage instead of hand-writing examples. The skill exercises live endpoints or app hooks, explores unexpected combinations, and reports failures that ordinary happy-path tests miss.","description":"# Generate adversarial API test cases from an OpenAPI or GraphQL schema\n\nUse Schemathesis when an agent needs to turn an API schema into broad negative and edge-case coverage instead of hand-writing examples. The skill exercises live endpoints or app hooks, explores unexpected combinations, and reports failures that ordinary happy-path tests miss.\n\n## Installation\n\nUse the upstream install or setup path that matches your environment:\n- uv pip install schemathesis\n\nRequirements and caveats from upstream:\n- <img src=\"https://img.shields.io/pypi/pyversions/schemathesis.svg\" alt=\"Python versions\">\n- **Python Tests:**\n- python\n\nBasic usage or getting-started notes:\n- uvx schemathesis run https://example.schemathesis.io/openapi.json\n- uvx schemathesis run https://your-api.com/openapi.json\n- **Command Line:**\n\n- Source: https://github.com/schemathesis/schemathesis\n- Extracted from upstream docs: https://raw.githubusercontent.com/schemathesis/schemathesis/HEAD/README.md\n\n## Source\n\n- [Agent Skill 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