Owner direction 2026-09-07 (verbatim): "Unknown commands like /vt or
stuff from plugins shall now go to the SpewBox. They should go to the
chatbox." Retail itself types ChatCommandRouter's "Unknown command"
refusals as ClientLocal (0x1A) -- the bit every ChatInterface window's
default filter excludes, so they only ever reached the transient
SpewBox overlay and left no transcript record.
Three call sites in ChatCommandRouter.Submit/EmitVerbHelp now call
IChatCommandFeedback.ShowSystemMessage (chat scroll, retail
Default/0x00) instead of ShowInterfaceText (SpewBox): the degenerate-
prefix "Unknown command: {verb}." guard, EmitVerbHelp's confirmed-
null-help branch, and EmitVerbHelp's unresolved-verb fallback. Every
OTHER 0x1A refusal in this file (AP-183 bad-argument refusals of REAL
retail commands -- lifestone, marketplace, channel list/on/off,
allegiance, house, the generic HandleFailureEvent(0x26) fallback,
DoStupidChannelHack, DoReply) is unchanged and still SpewBox-only --
the owner named only unknown commands and plugin text.
This is a deliberate deviation from retail's own 0x1A typing, recorded
as register row AD-124 (also covers the sibling plugin-text change in
a follow-up commit). docs/ISSUES.md #363/#367 get a one-line note
under each pointing at the re-route; their CLOSED status is untouched.
Mutation check: temporarily reverted all three ShowSystemMessage call
sites back to ShowInterfaceText and confirmed the 3 new/changed pinned
tests fail (Assert.Single() on an empty chat log) while the AP-183
boundary test (real command, bad args, still SpewBox) continues to
pass -- see ChatCommandRouterFeedbackRoutingTests.cs and the updated
ChatCommandRouterTests.cs/RetailCommandHelpTableTests.cs assertions.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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