What is compose-agent?

A coding guide for AI assistants working on Android Jetpack Compose, Kotlin's toolkit for building app screens in code. It covers state, effects, navigation, paging, animations, tests, keyboard focus, multiplatform boundaries, and launch resources.

Use it while writing or modifying Compose features, including navigation, scrolling lists, lifecycle-aware coroutines, animations, UI tests, and keyboard navigation.

It helps an assistant avoid common mistakes when creating or changing modern Compose code across these areas.

compose-agent — Plugin by hamen

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code

/plugin marketplace add hamen/compose_skill

agentmods

npx agentmods add plugins/hamen/compose_skill/compose-agent

Clone the repo

git clone --depth 1 https://github.com/hamen/compose_skill

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

compose-agent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/compose-agent/.claude-plugin/plugin.json · 26 lines

What it actually says

{
  "name": "compose-agent",
  "version": "4.4.0",
  "description": "Agent skill that helps AI coding assistants write modern Jetpack Compose: correct state, effects, performance-aware modifiers, Navigation 3, Paging 3 in Compose, coroutines on lifecycle, animations, UI tests, focus/keyboard navigation, Compose Multiplatform boundaries, Android launch resources, and idiomatic Kotlin. Targets the mistakes LLMs actually make in Compose code.",
  "author": {
    "name": "Ivan Morgillo"
  },
  "repository": "https://github.com/hamen/compose_skill",
  "license": "MIT",
  "keywords": [
    "android",
    "jetpack-compose",
    "kotlin",
    "coroutines",
    "navigation-3",
    "animation",
    "paging",
    "ui-testing",
    "focus",
    "kotlin-multiplatform",
    "splash-screen",
    "agent-skill",
    "best-practices"
  ]
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2d ago First seen · 26 lines scan A 783c66a1a8ac

Subscribe to this mod's changes

compose-agent is a plugin published in the GitHub repository hamen/compose_skill (367 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Creative and media Frontend Testing

compose-agent

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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