Start with:
../../references/26-testing-stack-headless-render-and-ui-tests.md../../references/27-diagnostics-profiling-and-devtools.md../../references/08-performance-checklist.md../../references/07-troubleshooting.md
Load this when an integrated sample helps:
../../references/09-end-to-end-examples.md
Workflow
- Pick the right confidence level: unit, headless render, UI, or manual diagnostics.
- Reproduce the issue before optimizing or broadening the fix.
- Use diagnostics output to narrow the subsystem before rewriting code.
- End with a concrete regression-safety plan.
Rules
- Measure first when performance is the claimed problem.
- Keep troubleshooting steps tied to reproducible symptoms.
- Add tests for bug classes, not only the single observed path.