Things I've worked on — and learned from.

An opencode plugin that ships a conductor primary agent plus four budget subagents — research, reader, implementer, QA — with a delegation boundary the conductor can't widen by accident.

A development-only MCP server that exposes TYPO3's resolved runtime state to AI assistants — with guarded tools, composable project guidance, and benchmarks measuring where the context pays off.

Forty accessible Fluid components, twenty Content Blocks and an ext:form theme bringing Germany's public-sector design standard to TYPO3 13.4 and 14.3 — with the KERN markup living exactly once and pinned by tests under both majors.