By default, Hermes always threads replies to channel messages. Teams
that prefer direct channel replies had no way to opt out without
patching the source.
Add a reply_in_thread option (default: true) to the Slack platform
extra config:
platforms:
slack:
extra:
reply_in_thread: false
When false, _resolve_thread_ts() returns None for top-level channel
messages, so replies go directly to the channel. Messages already
inside an existing thread are still replied in-thread to preserve
conversation context. Default is true for full backward compatibility.