design-review

API design validation for new TypeScript exports is performed by applying the Q5–Q9 design-review lens to single-symbol, single-file, or single-diff changes, ensuring they fit design invariants before implementation. This process checks abstraction quality and reactive graph composability.

A design review for new public API surfaces is needed when introducing new exports via a diff, a specific file path, or a specific symbol name. It prevents architecture drift by validating reactive graph composability and abstraction quality before implementation.

The Q5–Q9 API design lens for spec validation checks the right abstraction level, long-term solution quality, reactive and explainable shape, and requires at least two viable alternatives. It aligns new primitives with design invariants and composition guidance.

Cross-language parity for reactive graph composability can be reviewed using single-symbol or single-diff checks. The review validates that new public API surfaces maintain explainability and spec invariants across TypeScript and other languages.

Yes, the design review process requires producing at least two viable API alternatives as part of the Q8 check. It evaluates these alternatives alongside spec validation to provide a structured recommendation and log residual risks.

A single-diff design review for maintainability is limited to single-symbol, single-file, or single-diff scopes affecting exports and reactive graph composability. It logs residual risks or follow-ups when gaps remain but does not cover multi-file architectural overhauls.