Composables

Android Compose

Community

HoangNguyen0403

Build high-performance declarative UI with Jetpack Compose. Use when writing Composable functions, optimizing recomposition, hoisting state, or working with LazyColumn and side effects; defer deep-link and navigation routing to android-navigation.

Overview

Repository
HoangNguyen0403/agent-skills-standard
Publisher
HoangNguyen0403
Stars
585
Forks
163
Bundled files
2
License
MIT
Updated
Nov 14, 2026

Installation

tmp=$(mktemp -d)
git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git "$tmp"
mkdir -p ~/.claude/skills
cp -R "$tmp/skills/android/android-compose" ~/.claude/skills/android-compose
rm -rf "$tmp"

Instructions

Jetpack Compose Expert

Priority: P0 (CRITICAL)

Role: Android UI Performance Expert. Prioritize frame stability and state management.

1. Hoist State Correctly

  • Screen (Stateful) -> Content (Stateless).
  • Pass lambdas down (onItemClick: (Id) -> Unit).
  • NEVER pass ViewModel to stateless composables.
  • Use MaterialTheme.colorScheme, no hardcoded hex.

See implementation examples for state hoisting patterns.

2. Optimize Recomposition

  • Annotate params with @Stable or @Immutable.
  • Use key in LazyColumn items for stable identity.
  • Reuse or make Modifiers static where possible.
  • Use derivedStateOf for frequently updating derived values.

See implementation examples for derivedStateOf usage.

3. Handle Side Effects Properly

  • Use LaunchedEffect for one-shot or keyed side effects — never run side effects in composition body.
  • Move complex calculations to ViewModel or remember.

Anti-Patterns

  • No Side Effects in Composition Body: Use LaunchedEffect, not raw coroutines.
  • No VM Deep Pass: Hoist state; pass only data/callbacks.
  • No Heavy Computation in Composables: Offload to ViewModel or remember.

Verification

  • All stateless Composables have @Preview.
  • LazyColumn items use key parameter.
  • No ViewModel passed below Screen-level Composables.
  • ./gradlew build succeeds.

References

Bundled files

FAQ

What does Android Compose do?

Build high-performance declarative UI with Jetpack Compose. Use when writing Composable functions, optimizing recomposition, hoisting state, or working with LazyColumn and side effects; defer deep-link and navigation routing to android-navigation.

Who made Android Compose?

HoangNguyen0403 (a community member) publishes it in the HoangNguyen0403/agent-skills-standard repository on GitHub.

Is Android Compose free?

Yes. Android Compose is open source, published by HoangNguyen0403 under the MIT license.

What comes with Android Compose?

Its instructions and 2 files the agent reads only when a task needs them, such as references, examples or scripts.

Which agents can use Android Compose?

Any coding agent that reads SKILL.md files, including Claude Code, Codex, Cursor, GitHub Copilot and Gemini CLI. The agent loads the skill when a task matches its description.

What are agent skills?

An agent skill is a folder with a SKILL.md file: instructions that teach a coding agent how to do one kind of task, and optionally files it can read while it works. The agent keeps only the skill's name and description in mind and reads the rest when a task calls for it.

How are agent skills different from MCP servers?

An MCP server gives an agent new tools to call, code that runs somewhere and returns results. A skill gives it knowledge: how to approach a task with the tools it already has. Many agents use both.

How can my agent test my Android app?

Robomori lets coding agents create, start and control Android emulators and devices from one command, so they can install your app, take screenshots and check dark mode, font sizes and languages.

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The next lesson lands in on Wednesday.