Humans type [backend] what's #800? in a shared #mol-engineering channel
and the message routes specifically to Backend Engineer's workspace.
Matching logic (case-insensitive):
[pm] → PM
[backend] → Backend Engineer
[dev-lead] → Dev Lead
[security] → Security Auditor (prefix match on 'security-auditor')
Unknown slugs return the available agent list for that channel so the
user knows what slugs are valid.
Messages without a [slug] prefix route to the first matching workspace
(backward compat with Level 2).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>