`title: "Foo" — bar` opens with a quote and is not quoted; the previous prefix check read it as already-quoted and left two notes broken. Probing the value as the right-hand side of a mapping answers the real question — does this load as written — and leaves anything that already parses alone, whatever it parses into. Repairs the last two quotable files in mathias/brain. Only wiki/index.md remains unparseable, for an unrelated reason: a truncated UTF-8 sequence. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BeAp5LTscnz2W7Ubt4eJ6m