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Design deterministic pytest/pexpect regression tests for ytnova behavior, including fail-first evidence and clear diagnostics.
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Based on SOC occupation classification
Prevent and remove high-impact code-quality issues with principle-driven, risk-ranked recommendations and optional implementation.
Plan ytnova changes from behavior to implementation tasks with files, risks, invariants, and acceptance criteria. Use for design and technical-approach questions.
Implement approved ytnova tasks in C with minimal coherent edits, architectural safety, and terminal-verified proof.
Perform adversarial ytnova code review with severity-ranked findings, concrete fixes, and pass-fail gate decision.
Enforce strict ytnova bugfix loop: failing regression first, implementation second, passing proof third.
Run ytnova C quality gate for feature-sized changes using build, static analysis, valgrind, and pytest per docs/AUDIT.md.
| name | tester-regression-design |
| description | Design deterministic pytest/pexpect regression tests for ytnova behavior, including fail-first evidence and clear diagnostics. |
Use this skill when the active persona is tester.
