Design fine-grained reactive state architectures in Dart using signals_core primitives.
npx skills add https://github.com/rodydavis/signals.dart --skill signals-dart
Please help me install this Agent Skill. Skill: signals-dart Source: https://github.com/rodydavis/signals.dart/tree/main/skills/signals-dart Command: npx skills add https://github.com/rodydavis/signals.dart --skill signals-dart
Signals-dart helps you design predictable, high-performance reactive state in Dart without unnecessary recomputation or UI churn by giving you advanced primitives for synchronous, asynchronous, and collection-driven reactivity.
signal, computed, and effect to derive state and run side effects only when relevant dependencies change.futureSignal, streamSignal, computedAsync, and aggregate multiple async sources via computedFrom.listSignal, setSignal, mapSignal, iterableSignal, and queueSignal to track mutations and trigger observers appropriately.linkedSignal for writable derived state overrides, trackedSignal for undo/redo history, timerSignal for periodic ticks, and connect for piping events into signals.SignalOptions, ComputedOptions, AsyncSignalOptions, and collection-specific options.Use the signals-dart skill to design a reactive counter with batch updates, a derived computed label, and an effect that logs changes while avoiding circular subscriptions.
High-intent search queries and answers about installing and using this skill.
Fine-grained reactive state in Dart uses signals to track dependencies dynamically, ensuring computed values and side effects only re-evaluate when underlying dependencies change. This lazy evaluation prevents unnecessary recomputation and UI churn compared to coarse-grained state updates.
You can model async loading, value, and error lifecycles using futureSignal, streamSignal, and computedAsync. To aggregate multiple async sources without race corruption, compose them using computedFrom for predictable async reactive state.
Use the batch function to group multiple signal writes transactionally. This defers dependency tracking and effect execution until the batch completes, ensuring derived computed values and UI observers only update once after all writes are applied.
Yes, use listSignal, setSignal, mapSignal, iterableSignal, and queueSignal to track specific mutations within collections. These wrappers trigger observers appropriately based on granular changes rather than replacing the entire collection reference.
Yes, use trackedSignal to maintain undo and redo history for reactive state. Additionally, linkedSignal allows writable derived state overrides, enabling persistent user modifications while preserving the underlying computed relationship.
Use the .peek() method to read a signal's current value without establishing a dependency relationship. This prevents unnecessary recomputation in computed functions, whereas reading via .value actively subscribes the current context to future changes.
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