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When called from a Slack conversation, the tool description includes the current channel_id, thread_id, and team_id. These are used as defaults when not specified.

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Parameters

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string
Slack channel ID to read from. Omit to use the current conversation’s channel.
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string
Slack workspace team ID. Omit to use the current conversation’s workspace.
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string
Parent message timestamp to read thread replies. Omit for channel-level messages.
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string
Slack timestamp — fetch messages before this time.
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string
Slack timestamp — fetch messages after this time.
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string
Pagination cursor from a previous response’s next_cursor.
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number
default:50
Number of messages to return (1–100, default 50).