Add standardized installation, composer.json, release workflow

- Add composer.json for PHP distribution via netresearch/agent-typo3-core-contributions
- Update README.md with three installation methods (marketplace, release, composer)
- Add GitHub Actions release workflow for packaging

Author: CybotTM

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+        with:
+          egress-policy: audit
+
+      - name: Checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Get version from tag
+        id: version
+        run: echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+
+      - name: Create skill package
+        run: |
+          mkdir -p dist
+          cp SKILL.md dist/
+          cp LICENSE dist/
+          [ -d "references" ] && cp -r references dist/
+          [ -d "scripts" ] && cp -r scripts dist/
+          [ -d "assets" ] && cp -r assets dist/
+          [ -d "templates" ] && cp -r templates dist/
+          [ -d "skills" ] && cp -r skills dist/
+          cd dist
+          zip -r ../typo3-core-contributions-${{ steps.version.outputs.version }}.zip .
+          tar -czvf ../typo3-core-contributions-${{ steps.version.outputs.version }}.tar.gz .
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@c95fe1489396fe8a9eb87c0abf8aa5b2ef267fda # v2.2.1
+        with:
+          files: |
+            typo3-core-contributions-${{ steps.version.outputs.version }}.zip
+            typo3-core-contributions-${{ steps.version.outputs.version }}.tar.gz
+          generate_release_notes: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -46,7 +46,21 @@ Ensure you have:
 - SSH key uploaded to review.typo3.org
 - Docker (for DDEV) or native PHP 8.2+ environment
 
-### Installation
+## Installation
+
+### Option 1: Via Netresearch Marketplace (Recommended)
+
+```bash
+/plugin marketplace add netresearch/claude-code-marketplace
+```
+
+Then browse skills with `/plugin`.
+
+### Option 2: Download Release
+
+Download the [latest release](https://github.com/netresearch/typo3-core-contributions-skill/releases/latest) and extract to `~/.claude/skills/typo3-core-contributions/`
+
+### Option 3: Manual Installation
 
 Use this skill in Claude Code by referencing it from your project's skill configuration.
 
@@ -271,3 +285,7 @@ For issues or questions:
 **Version**: 1.1.0
 **Last Updated**: 2025-10-27
 **Status**: Production-ready, validated on live submissions
+
+---
+
+**Made with ❤️ for Open Source by [Netresearch](https://www.netresearch.de/)**

composer.json

@@ -0,0 +1,20 @@
+{
+  "name": "netresearch/agent-typo3-core-contributions",
+  "description": "Guide contributors through the complete TYPO3 Core contribution workflow from account setup to patch submission for both code and documentation contributions. Use when working with TYPO3 Forge issues,",
+  "type": "ai-agent-skill",
+  "license": "MIT",
+  "authors": [
+    {
+      "name": "Netresearch DTT GmbH",
+      "email": "plugins@netresearch.de",
+      "homepage": "https://www.netresearch.de/",
+      "role": "Manufacturer"
+    }
+  ],
+  "require": {
+    "netresearch/composer-agent-skill-plugin": "*"
+  },
+  "extra": {
+    "ai-agent-skill": "SKILL.md"
+  }
+}