typo3-extension-upgrade-skill
Description
A Claude Code skill for systematically upgrading TYPO3 extensions to newer LTS versions.
Installation
This entry records only its repository, not the path inside it, so there is no
exact command to give. Open the source below and copy the folder into
~/.claude/skills/, or the file into ~/.claude/agents/.
README
TYPO3 Extension Upgrade Skill
A Claude Code skill for systematically upgrading TYPO3 extensions to newer LTS versions.
**Developed by [Netresearch DTT GmbH](https://www.netresearch.de/)**
🔌 Compatibility
This is an **Agent Skill** following the [open standard](https://agentskills.io) originally developed by Anthropic and released for cross-platform use.
**Supported Platforms:**
- ✅ Claude Code (Anthropic)
- ✅ Cursor
- ✅ GitHub Copilot
- ✅ Other skills-compatible AI agents
Skills are portable packages of procedural knowledge that work across any AI agent supporting the Agent Skills specification.
Overview
This skill guides extension developers through upgrading TYPO3 extensions (third-party or custom) to newer TYPO3 LTS versions with modern PHP compatibility. It covers:
- Extension Scanner - Backend module for diagnosing deprecated/removed APIs
- Rector - Automated PHP code migrations
- Fractor - Automated non-PHP file migrations (FlexForms, TypoScript, YAML, Fluid)
- PHPStan - Static analysis
- PHPUnit - Testing framework setup
Scope
This skill is for **extension developers** upgrading extension code. It does NOT cover:
- Upgrading TYPO3 project installations
- TYPO3 core upgrades
- Site/instance migrations
Supported Upgrade Paths
| From | To | Status |
|---|---|---|
| v7 | v8 | Documented |
| v8 | v9 | Documented |
| v9 | v10 | Documented |
| v10 | v11 | Documented |
| v11 | v12 | Documented |
| v12 | v13 | Documented |
| v13 | v14 | Monitoring |
| v12 | v12+v13 (dual) | Documented |
Installation
Marketplace (Recommended)
Add the [Netresearch marketplace](https://github.com/netresearch/claude-code-marketplace) once, then browse and install skills:
# Claude Code
/plugin marketplace add netresearch/claude-code-marketplacenpx ([skills.sh](https://skills.sh))
Install with any [Agent Skills](https://agentskills.io)-compatible agent:
...Related Skills
Auto Update
Pull the latest ECC repo changes and reinstall the current managed targets.
Ecc Guide
Navigate ECC's current agents, skills, commands, hooks, install profiles, and docs from the live repository su
Epic Claim
Claim an epic issue, stamp coordination state, and sync local ownership.
Epic Publish
Publish a validated epic update back to the issue and local cache.
Epic Review
Mark epic review requested, approved, or changes requested.
Epic Unblock
Sweep blocked epic issues and reopen anything whose dependencies are closed.