The copy-paste-clean note told me to verify a draft parses as intended BY EYE.
Today's instance 6 is the counterexample: two leading spaces before a ## render
as a flawless heading and parse as nothing. By eye is exactly what cannot catch
it. Superseded by exact-string comparison with a negative control.
And the note's own remedy — the fenced block — is what added the indentation. It
stays right for entries and is wrong for whitespace-only repairs, which should go
over as a command that never touches the paste path.
Amendment joined rather than rewritten, so the original stays visible.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T1i5VRfHjD79hfaXjWsBXA