The input ended on a whitespace run, so the old regex returned a different
string and the test failed on the result before it reached the time bound.
Keep the run inside a line ('a<run>b\nc'): the old regex and the split now
return the same 'a<run>b c', and only the elapsed time tells them apart
(about 1.8 s against well under a millisecond).
Co-Authored-By: Christian Haberl <116439789+christianhaberl@users.noreply.github.com>
Co-Authored-By: Claude <noreply@anthropic.com>
/\s*[\r\n]+\s*/g backtracks over every start position of a long
whitespace run, so 50,000 spaces took over a second. Split on line breaks,
trim each line, drop blank ones and join with a space: linear, and a
leading or trailing blank line no longer leaves a space behind. A prompt
without a line break is still returned unchanged. session-auto-ops now
imports toSingleLine from the utils barrel like respawn-controller.
Co-Authored-By: Christian Haberl <116439789+christianhaberl@users.noreply.github.com>
Co-Authored-By: Claude <noreply@anthropic.com>
Auto-compact writes `/compact <prompt>\r` through writeViaMux when the token
count crosses the threshold, unattended. AutoCompactSchema.prompt accepts line
breaks, so a prompt set through the API can hold several lines. The mux used to
strip them and run the lines together; it now pastes multi-line text as one
block, and the check that re-presses a stranded Enter cannot recognise that
paste in the composer. That is the case respawn's update and kickstart prompts
were already joined for.
The join moves out of respawn-controller into a shared toSingleLine()
(src/utils/single-line.ts), used by both respawn steps and by auto-compact.
Behaviour for respawn is unchanged. The respawn test file becomes
test/unattended-single-line-prompt.test.ts and gains an auto-compact block that
feeds a real Session a token count over its threshold and reads what reaches
writeViaMux.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
