Instruction file imported from designxdevelop/heard-hsform-router (.cursor/rules/02-standards.mdc). Copyright stays with the author.

Code Standards

Name: 02-standards
Author: designxdevelop

Quality

Clear, idiomatic, maintainable; descriptive names; strict typing.
Small, composable functions; avoid over-engineering.
Focused diffs; follow existing patterns; fix linter warnings.

Safety (scale with risk)

Always: Handle errors, null/undefined; validate inputs.
User-facing/APIs: Validate schemas (Zod/Yup), sanitize output.
Auth/payments: Add XSS/CSRF/injection guards, secrets hygiene.
Clean up I/O resources (files, sockets, connections).

Testing (scale with scope)

Refactors/utilities: Add unit tests covering happy + edge cases.
New features/APIs: Add integration tests; mock externals.
Bug fixes: Add regression test.
Simple UI tweaks: Manual verification OK; skip tests if trivial.
Keep tests fast & deterministic (prefer bunx/bun).

Example

Fix typo in button text → no test needed.
Add API endpoint → validate input schema, add unit + integration tests, handle timeouts.

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02-standards

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Code Standards

Quality

Safety (scale with risk)

Testing (scale with scope)

Example

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