Remove redundant inner `import re` and regex recompilation on every call in
_interpolate_env_vars. Add module-level _ENV_VAR_PATTERN compiled once.
Replace the separate _interpolate_value() in mcp_config.py (which used \w+
and would silently fail on env vars containing hyphens or dots) with the
shared _ENV_VAR_PATTERN from mcp_tool.py. Remove now-unused import re.
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.