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--- name: project-core-dev description: Overlay for day-to-day feature work and bug fixes in repo-owned code. Provides a validation checklist for build, test, format, and analysis. Use alongside the repo's principle skill. --- # Project Core Dev This is a composable overlay, not a standalone workflow. Use alongside the repo's principle skill (e.g. **coding-guidance-cpp**) for normal feature work and bug fixes in repo-owned code. ## When to use The task is a feature, bug fix, or refactor in repo-owned code that needs a standard build-test-format-analyze validation pass. ## Not for Vendored dependency changes (use **project-vendor-boundary**), release/packaging work (use **project-release-maintainer**), config/test-focused work (use **project-config-and-tests**), or environment diagnosis (use **project-platform-diagnose**). ## Validation Checklist Run the repo's equivalents of these steps before committing: - build with the development preset or debug configuration - run the test suite with output on failure for covered changes - run the formatter or format-check target - run a lightweight smoke test (e.g. `--help` or `--version` on the main binary) - add analyzer, sanitizer, or memory-checking validation when the change surface justifies it - run static analysis targets when available