feat(config): add broadcastReplies option#7
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Adds an opt-in `broadcastReplies` config flag (default false). When enabled, the bot's reply text in subscribed-channel threads is posted with Slack's `reply_broadcast: true`, so the reply also appears in the channel's main timeline — useful for highlighting important answers without making members open the thread. Only affects threaded replies (SlackTextBuffer output). DM and non-threaded posts are unchanged; `reply_broadcast` is omitted when there is no `thread_ts` since Slack ignores it on top-level messages. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Adds an opt-in
broadcastRepliesconfig flag (defaultfalse). When enabled, the bot's reply text in subscribed-channel threads is posted with Slack'sreply_broadcast: true, so the reply also appears in the channel's main timeline — useful for highlighting important answers without making channel members open the thread.Why
Requested behaviour: in a group channel, surface a bot reply in the channel itself (not buried in a thread) to emphasize importance. There was previously no way to do this — all output was strictly threaded off the trigger message, and
reply_broadcastwas never set anywhere in the adapter.How
types.ts— newbroadcastReplies: z.boolean().default(false)onSlackChannelConfigSchema.text-buffer.ts—SlackTextBuffertakes an optionalbroadcastflag and setsreply_broadcast: trueon itschat.postMessagecalls only when athread_tsis present (Slack ignores the flag on top-level posts).adapter.ts— passesslackConfig.broadcastReplieswhen constructing the buffer.Scope / safety
false→ no behaviour change for existing bots.SlackTextBuffer). Progress/tool-card/notification messages are untouched.reply_broadcastomitted without a thread).Tests
Added unit tests for the schema default/override and the broadcast behaviour. Full suite: 179 passed, 1 skipped.
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