Agent skill

Android Data Layer

by Moustachauve in Moustachauve/WLED-Android

Guidance on implementing the Data Layer using Repository pattern, Room (Local), and Retrofit (Remote) with offline-first synchronization.

Apache-2.0Auto-check passedDevelopment

Install Android Data Layer

skills CLI
$ npx skills add Moustachauve/WLED-Android --skill android-data-layer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Moustachauve/WLED-Android android-data-layer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Moustachauve/WLED-Android.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/android-data-layer .claude/skills/android-data-layer && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
android-data-layer
GitHub stars
169
Used in
3 other repos
Token cost
~467 tokens
SKILL.md length
176 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
Apache-2.0

At a glance

Guidance on implementing the Data Layer using Repository pattern, Room (Local), and Retrofit (Remote) with offline-first synchronization.

  • Works in 5 steps: Repository Pattern → Local Persistence (Room) → Remote Data (Retrofit) → …
  • Tasks that involve Design patterns
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Android Data Layer is an agent skill from Moustachauve/WLED-Android. Guidance on implementing the Data Layer using Repository pattern, Room (Local), and Retrofit (Remote) with offline-first synchronization.

Its SKILL.md is about 470 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Design patterns. It works with Android. The repository describes itself as: Native Android application for WLED. The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Design patterns

Example prompts

  • “/android-data-layer”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Repository Pattern
  2. Local Persistence (Room)
  3. Remote Data (Retrofit)
  4. Synchronization
  5. Dependency Injection

What it can do on your machine

Read from SKILL.md and the folder at commit 7e164a8. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Android Data Layer loads about 467 tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 176 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~39
When it runs · the whole SKILL.md, loaded when a task matches
~467

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Moustachauve/WLED-Android at commit 7e164a8, republished under its Apache-2.0 licence (© Moustachauve). 176 words, ~467 tokens.

Download SKILL.mdSave it as .claude/skills/android-data-layer/SKILL.md (or your agent's skills folder).
name
android-data-layer
description
Guidance on implementing the Data Layer using Repository pattern, Room (Local), and Retrofit (Remote) with offline-first synchronization.

Android Data Layer & Offline-First

Instructions

The Data Layer coordinates data from multiple sources.

1. Repository Pattern
  • Role: Single Source of Truth (SSOT).
  • Logic: The repository decides whether to return cached data or fetch fresh data.
  • Implementation:
    kotlin
    class NewsRepository @Inject constructor(
        private val newsDao: NewsDao,
        private val newsApi: NewsApi
    ) {
        // Expose data from Local DB as the source of truth
        val newsStream: Flow<List<News>> = newsDao.getAllNews()
    
        // Sync operation
        suspend fun refreshNews() {
            val remoteNews = newsApi.fetchLatest()
            newsDao.insertAll(remoteNews)
        }
    }
2. Local Persistence (Room)
  • Usage: Primary cache and offline storage.
  • Entities: Define @Entity data classes.
  • DAOs: Return Flow<T> for observable data.
3. Remote Data (Retrofit)
  • Usage: Fetching data from backend.
  • Response: Use suspend functions in interfaces.
  • Error Handling: Wrap network calls in try-catch blocks or a Result wrapper to handle exceptions (NoInternet, 404, etc.) gracefully.
4. Synchronization
  • Read: "Stale-While-Revalidate". Show local data immediately, trigger a background refresh.
  • Write: "Outbox Pattern" (Advanced). Save local change immediately, mark as "unsynced", use WorkManager to push changes to server.
5. Dependency Injection
  • Bind Repository interfaces to implementations in a Hilt Module.
    kotlin
    @Binds
    abstract fun bindNewsRepository(impl: OfflineFirstNewsRepository): NewsRepository

© Moustachauve, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .github/skills/android-data-layer of Moustachauve/WLED-Android.

Open the folder on GitHubat commit 7e164a8

Used in 3 other repositories

We found 4 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in Moustachauve/WLED-Android, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Android Data Layer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Android Data Layer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Android Data Layer this skillMoustachauve/WLED-Android1693 repos~467Automated safety check: PassApache-2.0
Kmp StarterDevAtrii/Kmp-Starter-Template167—~3.3kAutomated safety check: PassMIT
Android Clean Architectureaffaan-m/ECC274k4 repos~2.2kAutomated safety check: PassMIT
Android Data Layer and Room in KMPrcosteira79/android-skills150—~1.2kAutomated safety check: PassMIT
Android Clean Architectureaffaan-m/ECC274k2 repos~1.8kAutomated safety check: PassMIT
Android ArchitectureHoangNguyen0403/agent-skills-standard570—~601Automated safety check: PassMIT

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Works with

Categories

Questions about Android Data Layer

What does Android Data Layer do?

Guidance on implementing the Data Layer using Repository pattern, Room (Local), and Retrofit (Remote) with offline-first synchronization. Android Data Layer is an agent skill from Moustachauve/WLED-Android. Guidance on implementing the Data Layer using Repository pattern, Room (Local), and Retrofit (Remote) with offline-first synchronization.

When should I use Android Data Layer?

Android Data Layer fits situations like: tasks that involve Design patterns.

How do I install Android Data Layer in Claude Code?

Run `npx skills add Moustachauve/WLED-Android --skill android-data-layer -a claude-code`. Or copy the skill folder (.github/skills/android-data-layer in Moustachauve/WLED-Android) into .claude/skills/android-data-layer in your project. Claude Code loads it when a task matches its description.

How do I install Android Data Layer in Codex?

Run `npx skills add Moustachauve/WLED-Android --skill android-data-layer -a codex`. Or copy the skill folder (.github/skills/android-data-layer in Moustachauve/WLED-Android) into .agents/skills/android-data-layer in your project. Codex loads it when a task matches its description.

Can I use Android Data Layer in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Moustachauve/WLED-Android --skill android-data-layer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/android-data-layer, .gemini/skills/android-data-layer, .github/skills/android-data-layer and .opencode/skills/android-data-layer in your project.

What does Android Data Layer need to run?

SKILL.md names no scripts, command-line tools or credentials: Android Data Layer is instructions for the agent only.

Does Android Data Layer access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Android Data Layer safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Android Data Layer use?

Android Data Layer is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Android Data Layer use?

About 467 tokens (SKILL.md is roughly 1.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Android Data Layer?

Skills that share tags, products or a category with Android Data Layer: Kmp Starter (DevAtrii/Kmp-Starter-Template, 167 stars), Android Clean Architecture (affaan-m/ECC, 274k stars), Android Data Layer and Room in KMP (rcosteira79/android-skills, 150 stars) and Android Clean Architecture (affaan-m/ECC, 274k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Android Data Layer?

Moustachauve (a GitHub user) maintains it in Moustachauve/WLED-Android, which has 169 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 7, 2026.

Source: Moustachauve/WLED-Android on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.