Greptile caught two example values that disagreed with the code defaults in
api/streaming.py: PREFILL_MESSAGES_SCRIPT_TIMEOUT is 5s (not 10) and
PREFILL_CONTEXT_MAX_CHARS is 12000 (not 20000). An operator uncommenting
either line verbatim would have silently diverged from the real default.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>