Android Kotlin Patterns Agent Skill

by cosmicstack-labs

Jetpack Compose, MVVM, Room, Coroutines, DI with Dagger/Hilt, and Play Store submission

435 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

365

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/cosmicstack-labs/mercury-agent-skills --skill android-kotlin-patterns

The instruction itself

8 sections, as written by the author

Android Kotlin Patterns

Production Android development with Kotlin and Jetpack.

Architecture (Modern Android Dev)

Recommended Stack

UI: Jetpack Compose with Material 3
State: ViewModel + StateFlow
DI: Hilt/Dagger
DB: Room
Network: Retrofit + OkHttp
Async: Coroutines + Flow
Navigation: Compose Navigation

Project Structure

app/
├── data/
│   ├── local/ (Room DAOs, entities)
│   ├── remote/ (Retrofit APIs, DTOs)
│   └── repository/
├── domain/
│   ├── model/
│   └── usecase/
├── ui/
│   ├── components/
│   ├── screens/
│   └── theme/
└── di/ (Hilt modules)

Jetpack Compose Patterns

State Hoisting

// State flows down, events flow up
@Composable
fun CounterScreen(viewModel: CounterViewModel = hiltViewModel()) {
    val state by viewModel.state.collectAsStateWithLifecycle()
    CounterContent(
        count = state.count,
        onIncrement = viewModel::increment
    )
}

Performance

Use remember and derivedStateOf for computations
LazyColumn for lists, not Column with scrolling
Stable types via @Immutable/@Stable annotations

Play Store Submission

[ ] Privacy Policy URL set
[ ] App signing key backed up
[ ] In-app reviews integrated
[ ] Crash reporting (Firebase)
[ ] proguard-rules.pro configured
[ ] App bundles (.aab) for distribution

Other skills for the same job

different authors, same section of the catalogue

Protocolsio Integration

by christophacham

×4

Integration with protocols.io API for managing scientific protocols. This skill should be used when working with protocols.io to search, create, update, or publish protocols; manage protocol steps and materials; handle discussions and comments; organize workspaces; upload and manage files; or integrate protocols.io functionality into workflows. Applicable for protocol discovery, collaborative protocol development, experiment tracking, lab protocol management, and scientific documentation.

16k tokens

Tailored Resume Generator

by frostant

×4

Analyzes job descriptions and generates tailored resumes that highlight relevant experience, skills, and achievements to maximize interview chances

3k tokens

Excalidraw Diagram Generator

by github

vendor ×3

Generate Excalidraw diagrams from natural language descriptions. Use when asked to "create a diagram", "make a flowchart", "visualize a process", "draw a system architecture", "create a mind map", or "generate an Excalidraw file". Supports flowcharts, relationship diagrams, mind maps, and system architecture diagrams. Outputs .excalidraw JSON files that can be opened directly in Excalidraw.

Build and distribute Expo development clients locally or via TestFlight

Use when you have a written implementation plan to execute in a separate session with review checkpoints

Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.

16k tokens

Benchling Integration

by christophacham

×3

Benchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.

Comprehensive molecular biology toolkit. Use for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez). Best for batch processing, custom bioinformatics pipelines, BLAST automation. For quick lookups use gget; for multi-service integration use bioservices.

24k tokens

How to use it

Copy the folder

Take cosmicstack-labs/android-kotlin-patterns from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.