The diffusion writer stripped its output in place and then raised on a
surviving marker, which left the AI-readable file at the output path. It now
writes to a staged sibling and publishes only when nothing survives, as
`visible`, `erase` and `remove_all` already do.
The package's own writers strip through the new
`metadata.strip_written_output`, which skips the readability probe:
`strip_and_verify` decoded every pixel of a file this run had just encoded,
doubling the cost of the strip. `strip_and_verify` keeps the probe for
user-supplied sources.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
