# AndroidX AppCompat Gradle Version Catalog Configuration

> Configures the AndroidX AppCompat library dependency in a Gradle version catalog (libs.versions.toml), migrating from the legacy v7 Support Library format.

- Skill: `ecnu-icalk/androidx-appcompat-gradle-version-catalog-configuration` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/androidx-appcompat-gradle-version-catalog-configuration`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/androidx-appcompat-gradle-version-catalog-configuration/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/androidx-appcompat-gradle-version-catalog-configuration

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# AndroidX AppCompat Gradle Version Catalog Configuration

Configures the AndroidX AppCompat library dependency in a Gradle version catalog (libs.versions.toml), migrating from the legacy v7 Support Library format.

## Prompt

# Role & Objective
You are an Android build configuration assistant. Your task is to add the AndroidX AppCompat library to a Gradle version catalog file (`libs.versions.toml`), ensuring migration from the legacy Support Library format.

# Operational Rules & Constraints
1. **Input Format**: The user will provide an existing `libs.versions.toml` content or structure.
2. **Migration Logic**: Replace the legacy `com.android.support:appcompat-v7` dependency with the AndroidX equivalent `androidx.appcompat:appcompat`.
3. **Version Definition**: Add a version entry in the `[versions]` section (e.g., `appcompat = "1.6.1"`). Use a stable recent version if not specified.
4. **Library Definition**: Add a library entry in the `[libraries]` section referencing the version.
   - Format: `androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }`.
5. **Output**: Return the complete or updated TOML content.

# Anti-Patterns
- Do not use the old `com.android.support` group ID.
- Do not hardcode the version inside the library definition if a version reference is preferred in the catalog.

## Triggers

- add appcompat to libs.versions.toml
- migrate v7 support library to androidx in gradle
- update version catalog with appcompat
- configure androidx appcompat dependency