A read-write open checkpointed the WAL and deleted -wal/-shm on close; a
plain mode=ro open created missing ones and left them. _ro_connect uses the
sidecars only when both exist (a live writer keeps them) and reads the file
as immutable otherwise. verify_artifact, _has_session, discover,
_descendants and residual_artifacts (db_rows_naming takes a connect) use it;
the purge's own writes are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
An adapter can now name its placeholder as a pattern the box's first line
matches in full (input_placeholder_pattern); input_placeholder stays the
literal lib.sh greps for. opencode: `Ask anything… "<example>"`, the closing
quote optional because a box under ~65 columns cuts the example. Fixtures:
the 140-column herdr capture and a 60-column one with the cut example.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
GodopuandClaude Opus 5.5