Agent skill

Create Feature Module

by MartinStyk in MartinStyk/apk-analyzer

A skill your agent uses when creating a new feature module, screen, or feature area.

GPL-3.0Auto-check passedMobile

Install Create Feature Module

skills CLI
$ npx skills add MartinStyk/apk-analyzer --skill create-feature-module -a claude-code

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

GitHub CLI
$ gh skill install MartinStyk/apk-analyzer create-feature-module --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/MartinStyk/apk-analyzer.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/create-feature-module .claude/skills/create-feature-module && 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
create-feature-module
GitHub stars
368
Token cost
~1.6k tokens
SKILL.md length
336 words
Files
1
Skills in repo
18
Repo updated
First seen
Licence
GPL-3.0

At a glance

A skill your agent uses when creating a new feature module, screen, or feature area.

  • Works in 9 steps: Create API module → Create impl module → Create entry provider → …
  • Creating a new feature module
  • SKILL.md covers Step 1 — Create API module, Step 2 — Create impl module, Step 3 — Create entry provider and Step 4 — Create screen…, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Create Feature Module is an agent skill from MartinStyk/apk-analyzer. Use when creating a new feature module, screen, or feature area. Triggered by phrases like "create feature", "add feature module", "new feature", "create a screen for", "add new screen".

Its SKILL.md is about 1.6k 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 Mobile, covering Android development. It works with Gradle and Kotlin. The repository describes itself as: The most downloaded APK analysis app on Google Play. Detailed reports of every app on your device. No root, no ads, nothing leaves the phone. The licence is GPL-3.0.

When your agent uses it

  • Creating a new feature module
  • Tasks that involve Android development

Example prompts

  • “create feature”
  • “add feature module”
  • “new feature”
  • “/create-feature-module”

Workflow steps

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

  1. Create API module
  2. Create impl module
  3. Create entry provider
  4. Create screen composable (placeholder)
  5. Register in settings.gradle.kts
  6. Add dependency in app/build.gradle.kts
  7. Wire in app/src/main/kotlin/sk/styk/martin/apkanalyzer/ui/ApkAnalyzerApp.kt
  8. If top-level destination (bottom nav tab)
  9. Create module docs

What it can do on your machine

Read from SKILL.md and the folder at commit d807559. 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 (its code samples are kotlin).

    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

Create Feature Module loads about 1.6k tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 336 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~52
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k

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 MartinStyk/apk-analyzer at commit d807559, republished under its GPL-3.0 licence (© MartinStyk). 336 words, ~1,609 tokens.

Download SKILL.mdSave it as .claude/skills/create-feature-module/SKILL.md (or your agent's skills folder).
name
create-feature-module
description
Use when creating a new feature module, screen, or feature area. Triggered by phrases like "create feature", "add feature module", "new feature", "create a screen for", "add new screen".

Create Feature Module

Given a feature name <name> (e.g., about):

Step 1 — Create API module

feature/<name>/api/build.gradle.kts

kotlin
plugins {
    alias(libs.plugins.apkanalyzer.feature.api)
}

android {
    namespace = "sk.styk.martin.apkanalyzer.feature.<name>.api"

    androidResources.enable = false
}

Drop the androidResources.enable line once this module gets its own res/ — most commonly in Step 8, when a top-level destination needs its tab-label string in feature/<name>/api/src/main/res/values/strings.xml.

feature/<name>/api/src/main/kotlin/sk/styk/martin/apkanalyzer/feature/<name>/api/<Name>NavKey.kt

kotlin
package sk.styk.martin.apkanalyzer.feature.<name>.api

import androidx.navigation3.runtime.NavKey
import kotlinx.serialization.Serializable

@Serializable
object <Name>NavKey : NavKey

If the NavKey needs parameters, use data class instead:

kotlin
@Serializable
data class <Name>NavKey(val id: String) : NavKey

Step 2 — Create impl module

feature/<name>/impl/build.gradle.kts

kotlin
plugins {
    alias(libs.plugins.apkanalyzer.feature.impl)
}

android {
    namespace = "sk.styk.martin.apkanalyzer.feature.<name>.impl"

    androidResources.enable = false
}

dependencies {
    api(projects.feature.<name>.api)
    // Add core module dependencies as needed:
    // implementation(projects.core.apps)
    // implementation(libs.coil.compose)
}

Drop the androidResources.enable line as soon as the screen has real UI copy and gets its own res/values/strings.xml — every user-facing string in this module's Composables must come from stringResource, so this almost always happens by the time Step 4's placeholder is replaced.

Step 3 — Create entry provider

feature/<name>/impl/src/main/kotlin/sk/styk/martin/apkanalyzer/feature/<name>/impl/navigation/<Name>EntryProvider.kt

Without navigation (self-contained screen):

kotlin
package sk.styk.martin.apkanalyzer.feature.<name>.impl.navigation

import androidx.navigation3.runtime.EntryProviderScope
import androidx.navigation3.runtime.NavKey
import sk.styk.martin.apkanalyzer.feature.<name>.api.<Name>NavKey
import sk.styk.martin.apkanalyzer.feature.<name>.impl.<Name>Screen

fun EntryProviderScope<NavKey>.<name>Entries() {
    entry<<Name>NavKey> {
        <Name>Screen()
    }
}

With navigation (back or to other screens):

kotlin
package sk.styk.martin.apkanalyzer.feature.<name>.impl.navigation

import androidx.navigation3.runtime.EntryProviderScope
import androidx.navigation3.runtime.NavKey
import sk.styk.martin.apkanalyzer.core.navigation.Navigator
import sk.styk.martin.apkanalyzer.feature.<name>.api.<Name>NavKey
import sk.styk.martin.apkanalyzer.feature.<name>.impl.<Name>Screen

fun EntryProviderScope<NavKey>.<name>Entries(navigator: Navigator) {
    entry<<Name>NavKey> {
        <Name>Screen(
            onBack = { navigator.goBack() },
        )
    }
}

Step 4 — Create screen composable (placeholder)

feature/<name>/impl/src/main/kotlin/sk/styk/martin/apkanalyzer/feature/<name>/impl/<Name>Screen.kt

kotlin
package sk.styk.martin.apkanalyzer.feature.<name>.impl

import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import sk.styk.martin.apkanalyzer.core.uilibrary.components.Text
import sk.styk.martin.apkanalyzer.core.uilibrary.theme.ApkAnalyzerTheme

@Composable
internal fun <Name>Screen() {
    Box(
        modifier = Modifier.fillMaxSize(),
        contentAlignment = Alignment.Center,
    ) {
        Text(text = "<Name>")
    }
}

@Preview
@Composable
private fun <Name>ScreenPreview() {
    ApkAnalyzerTheme {
        <Name>Screen()
    }
}

Step 5 — Register in settings.gradle.kts

Add inside include(...):

kotlin
":feature:<name>:api",
":feature:<name>:impl",

Step 6 — Add dependency in app/build.gradle.kts

kotlin
implementation(projects.feature.<name>.impl)

Step 7 — Wire in app/src/main/kotlin/sk/styk/martin/apkanalyzer/ui/ApkAnalyzerApp.kt

Add import:

kotlin
import sk.styk.martin.apkanalyzer.feature.<name>.impl.navigation.<name>Entries

Add inside entryProvider { } block:

kotlin
<name>Entries()          // or <name>Entries(navigator) if Navigator is needed

Step 8 — If top-level destination (bottom nav tab)

Add to app/src/main/kotlin/sk/styk/martin/apkanalyzer/ui/navigation/TopLevelDestinations.kt:

  • Import the NavKey and add a NavigationBarItem to TOP_LEVEL_DESTINATIONS
  • Choose icons from ApkAnalyzerIcons
  • Add string resource in the api module: feature/<name>/api/src/main/res/values/strings.xml

Step 9 — Create module docs

Every feature carries one AGENTS.md at feature/<name>/AGENTS.md covering both its api and impl submodules (not two separate files — see feature/settings/AGENTS.md or feature/app-detail/AGENTS.md for the exact format: Purpose, Sub-modules, API module key types, Impl Structure, Key Patterns, Dependencies), plus a one-line CLAUDE.md pointer at the same level:

feature/<name>/CLAUDE.md

@AGENTS.md

If the feature starts as a placeholder screen (Step 4's stub), say so explicitly in the AGENTS.md purpose line — e.g. "Status: stub/placeholder — not yet implemented" (see feature/browse/AGENTS.md) — so a future agent doesn't assume real behavior exists. Update it once the feature is actually built out.

The root AGENTS.md does not list individual modules, so there is nothing to update there. Run ./gradlew validateAgentContext to confirm the new module has the AGENTS/CLAUDE pair it requires.

Naming Reference

ThingConventionExample
Module directorykebab-caseapp-detail
Gradle accessorcamelCaseprojects.feature.appDetail.impl
Package segmentconcatenated lowercasefeature.appdetail.impl
NavKey classPascalCase + NavKeyAppDetailNavKey
Entry provider functioncamelCase + EntriesappDetailEntries

© MartinStyk, GPL-3.0. 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 .claude/skills/create-feature-module of MartinStyk/apk-analyzer.

Open the folder on GitHubat commit d807559

Compare with similar skills

Create Feature Module 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.

Create Feature Module compared with similar skills
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Create Feature Module this skillMartinStyk/apk-analyzer368—~1.6kAutomated safety check: PassGPL-3.0
Android Developmentdpconde/claude-android-skill336—~1.7kAutomated safety check: PassMIT
Diagnosing Compose StabilityrosuH/EasyWatermark1.9k1 repos~3.3kAutomated safety check: PassApache-2.0
Claude Android NinjaDrjacky/claude-android-ninja124—~5.2kAutomated safety check: PassApache-2.0
Expo Brownfield Integrationmweinbach/agent-coworker1562 repos~900Automated safety check: NotesCustom licence
Build Foremannekomangaorg/Neko2.8k—~807Automated safety check: PassApache-2.0

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Works with

Categories

Questions about Create Feature Module

What does Create Feature Module do?

A skill your agent uses when creating a new feature module, screen, or feature area. Create Feature Module is an agent skill from MartinStyk/apk-analyzer. Use when creating a new feature module, screen, or feature area.

When should I use Create Feature Module?

Create Feature Module fits situations like: creating a new feature module; tasks that involve Android development.

How do I install Create Feature Module in Claude Code?

Run `npx skills add MartinStyk/apk-analyzer --skill create-feature-module -a claude-code`. Or copy the skill folder (.claude/skills/create-feature-module in MartinStyk/apk-analyzer) into .claude/skills/create-feature-module in your project. Claude Code loads it when a task matches its description.

How do I install Create Feature Module in Codex?

Run `npx skills add MartinStyk/apk-analyzer --skill create-feature-module -a codex`. Or copy the skill folder (.claude/skills/create-feature-module in MartinStyk/apk-analyzer) into .agents/skills/create-feature-module in your project. Codex loads it when a task matches its description.

Can I use Create Feature Module 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 MartinStyk/apk-analyzer --skill create-feature-module -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/create-feature-module, .gemini/skills/create-feature-module, .github/skills/create-feature-module and .opencode/skills/create-feature-module in your project.

What does Create Feature Module need to run?

SKILL.md names no scripts, command-line tools or credentials: Create Feature Module is instructions for the agent only.

Does Create Feature Module 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 Create Feature Module 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 Create Feature Module use?

Create Feature Module is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Create Feature Module use?

About 1.6k tokens (SKILL.md is roughly 6.4k 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 Create Feature Module?

Skills that share tags, products or a category with Create Feature Module: Android Development (dpconde/claude-android-skill, 336 stars), Diagnosing Compose Stability (rosuH/EasyWatermark, 1.9k stars), Claude Android Ninja (Drjacky/claude-android-ninja, 124 stars) and Expo Brownfield Integration (mweinbach/agent-coworker, 156 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Create Feature Module?

MartinStyk (a GitHub user) maintains it in MartinStyk/apk-analyzer, which has 368 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on October 5, 2026.

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