Individual skill
aidd-observe
Enforces Observe pattern best practices from @adobe/data/observe. Use when working with Observe, observables, reactive data flow, service Observe properties, or when the user asks about Observe.withMap, Observe.withFilter, Observe.fromConstant, Observe.fromProperties, or similar.
ai/skills/aidd-observe/SKILL.md
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# Observe pattern
`Observe<T>` from `@adobe/data/observe` — a subscription function: `(notify: (value: T) => void) => Unobserve`. Callback may be invoked synchronously or asynchronously, zero or more times. Returns `Unobserve` to stop observing.
---
## Creation helpers
| Helper | Usage |
|--------|-------|
| `Observe.fromConstant(value)` | `Observe<T>` from a constant value |
| `Observe.fromProperties({ a, b })` | Combine named observables into `Observe<{ a, b }>` |
| `Observe.fromArray([obs1, obs2])` | Combine array of observables into `Observe<T[]>` |
| `Observe.fromPromise(() => Promise)` | Lazy; notifies once when promise resolves |