az-beitrag (mode: primary): Fachbereichs-Contributor-Assistent guiding
users to draft valid artifacts per README guard rules; keeps full
delegation capability (delegates the formal check to az-pruefer via
task tool) and explicitly acknowledges the managed permission layer.
az-pruefer (mode: subagent): read-only checker with tools [read, glob,
grep] — no edit/bash; invocable via @mention and task tool.
Three invalid agent fixtures under tests/fixtures/agents/invalid/
covering all README-documented failure modes: missing mode, missing
description, invalid mode value.
Closes az-agent-defaults-gyj
m3ta-chiron
befb071fea