Development

TYPO3 Project Upgrade

Systematic TYPO3 project instance upgrades across major LTS versions. sys_template→Site Sets migration, Bootstrap 4→5 patterns, Bootstrap Package v12–v16 breaking changes, SCSS variable injection, Docker infrastructure, database cleanup, visual review methodology with assessment checkpoints.

Latest release v1.4.5

Install

Choose a supported route below. Package contents, agent registration and runtime dependencies can differ between installers.

  1. Claude Code via this marketplace
    /plugin install typo3-project-upgrade@netresearch-claude-code-marketplace

    First add the marketplace once in Claude Code: /plugin marketplace add netresearch/claude-code-marketplace. Then install the selected plugin. For setup and installation scopes, see Claude Code plugin setup A plugin can include several skills and additional components.

  2. npx interactive skill selection
    npx skills add https://github.com/netresearch/typo3-project-upgrade-skill

    Requires Node.js 22.20+. Run from the target project, then choose the source skills and agents in the installer. Uses the skills CLI from skills.sh Installs skill instructions. Extra plugin hooks, commands and external runtime tools are not installed by this route.

  3. composer require PHP project, as a package
    composer require netresearch/typo3-project-upgrade-skill

    Allow the Composer skill installer to activate and approve skill registration when prompted. Requires netresearch/composer-agent-skill-plugin Discovers trusted skill packages and registers their instructions in AGENTS.md. Runtime tools may need separate setup.

  4. composer skills:add PHP project, direct source
    composer skills:add netresearch/typo3-project-upgrade-skill

    Install and activate netresearch/composer-agent-skill-plugin first; approve the selected source's skill registration. Provided by netresearch/composer-agent-skill-plugin Pins source repositories without a Packagist package and records them in composer.skills.lock. Runtime dependencies remain separate.

What you can do with it

  • Systematic TYPO3 project instance upgrades across major LTS versions
  • sys_template→Site Sets migration, Bootstrap 4→5 patterns, Bootstrap Package v12–v16 breaking changes, SCSS variable injection, Docker infrastructure, database cleanup, visual review methodology with assessment checkpoints

What you get back

  • Project configuration, template, infrastructure or database migration changes, plus structural and visual verification for the selected upgrade scope.

What it expects in your project

Check the source README for current examples, requirements and limitations. Open full README

Tags

  • development
  • typo3