An Android development guide for using Jetpack Compose Styles, an experimental API for giving custom interface components shared visual settings such as size and background.

Use it when adding themes and style support to custom Compose components or migrating an Android design system. It does not cover Material Design components.

It helps update dependencies, enable the required experimental API, and move existing custom components and layouts to one consistent styling approach.

styles — Skill for Claude Code by ArisGuimera/MobiAI-Core

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.

Any agent

npx skills add ArisGuimera/MobiAI-Core --skill styles

Clone the repo

git clone --depth 1 https://github.com/ArisGuimera/MobiAI-Core

Made for: Claude Code.

Or install android, the plugin that ships this one along with the rest of its 35 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/arisguimera/mobiai-core/styles/github.svg)](https://agentmods.dev/skills/arisguimera/mobiai-core/styles)

Your own site

<a href="https://agentmods.dev/skills/arisguimera/mobiai-core/styles"><img src="https://agentmods.dev/badge/skills/arisguimera/mobiai-core/styles/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/arisguimera/mobiai-core/styles"><img src="https://agentmods.dev/badge/skills/arisguimera/mobiai-core/styles.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,953 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 100% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00070	$0.01953
Opus 5.5	$0.00028	$0.00781
Sonnet 5.5	$0.00014	$0.00391
Haiku 4.5	$0.00007	$0.00195

Measured yesterday against content hash c7e792cdad96, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

styles 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 yesterday.

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.

Origin

This is a copy

100% identical to styles — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/android/skills/google/styles/SKILL.md · 227 lines

How it starts

The opening of the file, as written. The whole thing — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Limitations

Warn the user that this skill is EXPERIMENTAL and requires updating to alpha version of Compose and opting in to the Experimental APIs.
This skill only supports custom UI components and custom themes.
This skill does not support Material Design component Styles.

Prerequisites

1. Upgrade dependencies

The project must use compileSdk version 37 or higher.
The project must use androidx.compose.foundation:foundation version 1.12.0-alpha01 or higher.
Alternatively, the project must use Compose BOM version 2026.04.01 or higher.
The API requires this exact package: import androidx.compose.foundation.style.Style

2. Configure compiler options to enable experimental API

You must opt-in to the experimental API at the project level. Add the following block to your module's build.gradle.kts:

kotlin {
    compilerOptions {
        jvmTarget = JvmTarget.fromTarget("17")
        freeCompilerArgs.add("-opt-in=androidx.compose.foundation.style.ExperimentalFoundationStyleApi")
    }
}

Core workflows and guides

Refer to the official documentation to complete specific development tasks:

Basic Style Usage: To set backgrounds, sizes, and alignments on a component, follow the Compose Styles Fundamentals Guide.
State and Transitions: To configure property changes for state shifts (like pressed or hovered), follow the Animations and State-Based Styling Guide.
Architecture Trade offs: To decide when to use a Style versus a standard Modifier, follow the Styles versus Modifiers Comparison.
Theme Level Integration: To connect style definitions with custom themes, follow Theming with Styles and Custom Themes in Compose.

Read the full file on GitHub · 227 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

yesterday First seen · 227 lines · 70 tokens per session scan A c7e792cdad96

Subscribe to this mod's changes

styles is a skill published in the GitHub repository ArisGuimera/MobiAI-Core (489 stars, last pushed yesterday), licensed MIT. It adds 70 tokens to every session and 1,953 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to styles, differing in 0 lines, and is treated as a copy.

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styles