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7/20/2026

A Smaller Foundation for JavaScript Reactivity
Short summary
The article argues for a smaller TC39 Signals standard: instead of standardizing a full reactive graph, standardize only an invalidation protocol and lazy cached derivation primitive. Frameworks would build their own tracking, equality, scheduling, and effects on top. This approach achieves interoperability through a behavioral protocol rather than a shared graph, allowing diverse reactive systems to participate without adopting a single architecture.
- •Proposes a minimal TC39 standard: invalidation protocol + lazy cached derivation
- •Frameworks retain control over tracking, equality, scheduling, and effects
- •Interoperability via behavioral protocol rather than shared reactive graph
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