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FrontendShell

Using Efficient Effects

by skydoves

Using Efficient Effects is a Frontend skill for Claude Code, published by skydoves in compose-performance-skills.

492 stars17 forkson skydoves/compose-performance-skillsAdded 2026/08/26+1% in starsRepository updated 2026/06/16
agent-skillsandroidclaudeclaude-codecomposecompose-performancejetpack-composekotlinllm-toolsrecompositionskydoves
Install in seconds
Install Using Efficient Effects
Copy Using Efficient Effects into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/skydoves/compose-performance-skills/tree/main/side-effects/using-efficient-effects ~/.claude/skills/using-efficient-effects

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/skydoves/compose-performance-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file
side-effects/using-efficient-effects/SKILL.md in skydoves/compose-performance-skills
Installs to
~/.claude/skills/using-efficient-effects
Collection
One of 25 skills cataloged from this repository
Category
Frontend567 skills

What Using Efficient Effects does

Using Efficient Effects helps choose the cheapest correct Jetpack Compose effect API for a given job. It covers LaunchedEffect, DisposableEffect, SideEffect, rememberUpdatedState, RememberedEffect, and ViewModelStoreScope when effects restart, leak, or capture stale callbacks.

Using Efficient Effects is cataloged under Frontend on DirSkills. Using Efficient Effects comes from a repository tagged agent-skills, android, claude, claude-code and compose.

Documentation

README

Using Efficient Effects — pick the cheapest correct effect API

Compose ships three effect APIs by default: LaunchedEffect (coroutine, restarts on key change), DisposableEffect (setup/teardown with a cleanup block), and SideEffect (runs on every successful composition). The skydoves/compose-effects library adds RememberedEffect — a non-coroutine analog of LaunchedEffect. Picking the wrong API wastes a coroutine scope, leaks a listener, or silently drops the latest version of a callback. This skill is the decision tree.

When to use this skill

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Using Efficient Effects

  • What else does skydoves publish alongside Using Efficient Effects?

    Using Efficient Effects is one of 25 skills that DirSkills catalogs from skydoves/compose-performance-skills, the repository it ships in. Its siblings there include Auditing Compose Performance, Avoiding Subcomposition Pitfalls and Choosing DerivedStateOf. Each one is a separate skill with its own page in this directory, installs the same way Using Efficient Effects does, and is maintained by skydoves in that same repository. The rest of the collection is listed on the skydoves/compose-performance-skills page.

  • How does Using Efficient Effects compare to other Frontend skills?

    Using Efficient Effects ranks #520 by stars among the 567 Frontend skills in this catalog. The most-starred ones next to it are Angular Developer, Android Clean Architecture and Accessibility. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Using Efficient Effects against them. Open each page to compare what they document and how they install.

More from skydoves/compose-performance-skills

Using Efficient Effects is one of 25 skills cataloged on DirSkills from skydoves/compose-performance-skills.

See all 25 skills
🔍
5d ago

Auditing Compose Performance

Auditing Compose Performance runs a Measure → Diagnose → Fix → Verify workflow for broad Jetpack Compose slowdowns. Use it for perf audits, sprint kickoffs, and written reports when you need baseline metrics, causes, fixes, and verification.
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5d ago

Avoiding Subcomposition Pitfalls

Avoiding Subcomposition Pitfalls explains when SubcomposeLayout, BoxWithConstraints, or Scaffold cause repeated measure-phase composition in Jetpack Compose. Use it to replace unnecessary subcomposition with cheaper layout primitives or tune it when subcomposition is required.
Frontend
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🧩
5d ago

Choosing DerivedStateOf

Choosing DerivedStateOf helps decide when Jetpack Compose derivedStateOf reduces recompositions and when it is just overhead. It covers input-vs-output frequency, required remember wrapping, stale captures, and snapshotFlow for one-shot side effects.
Frontend
49217
🌊
5d ago

Collecting Flows Safely

Collecting Flows Safely helps migrate Compose screens from collectAsState() to collectAsStateWithLifecycle() and tame high-frequency flows with conflate(), distinctUntilChanged(), and snapshotFlow. Use it when background collection, unstable Flow parameters, or chatty streams are causing wasted work or extra recompositions.
Quality
49217
📜
5d ago

Configuring Lazy Prefetch

Configuring Lazy Prefetch tunes Jetpack Compose lazy-layout cache windows and nested prefetch for heavy scrolling. Use it when dropped frames come from composition work, especially with LazyLayoutCacheWindow or inner lazy layouts.
Frontend
49217
🛠️
5d ago

Configuring R8 For Compose

Configuring R8 For Compose explains how to set up minification for a Jetpack Compose app with R8 full mode, resource shrinking, and minimal keep rules. Use it when enabling release shrinking, fixing missing keeps, or checking why Compose does not need blanket keep rules.
DevOps
49217