How Claude Tag works changedclaude-tag/concepts/how-it-works
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106106Editing or deleting an earlier message doesn't steer the session the way a reply does:
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108* **Editing a message**: Claude receives a note each time you edit, showing what the message said before the edit and what it says now. It reads the note but doesn't act on it, so it won't reply, redo finished work, or treat words you added as a new request.
108* **Editing a message**: Claude receives a note each time you edit, showing what the message said before the edit and what it says now. An edit doesn't start a new task or re-address Claude, even if you add `@Claude` to it.
109109* **Deleting a reply**: Claude gets no notification and keeps the version it already read.
110110* **Deleting the thread's first message**: if the thread already has replies, Claude keeps working and the session stays open. If you delete it before anyone has replied, the session closes. Anything Claude already pushed or posted persists, per [what survives between replies](#what-survives-between-replies), and you start a new thread to pick the task back up.
111* **Correcting course**: Claude acts on replies, not on edits or deletions. Say the change in a new reply; the reply is also how you walk back a message it already read.
111* **Correcting course**: Claude responds to replies; edits reach it only as notes, and a deleted reply not at all. Say the change in a new reply; the reply is also how you walk back a message it already read.
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113113## Team channels and personal DMs
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216216### Conversation context
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218A session reads its own thread and its channel. Mentioning `@Claude` partway into an existing thread gives it up to 50 messages from the start of the thread (the root plus the oldest replies, with other bots' replies filtered out). In long threads, the most recent messages before your mention can fall outside that window, so restate anything critical.
218A session reads its own thread and its channel. Mentioning `@Claude` partway into an existing thread gives it a window of the thread's messages, not the whole thread, with other bots' replies filtered out. In long threads, restate anything critical.
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220220Claude works in channels it has been added to, but workspace search can still find messages by keyword from public channels it's not a member of (the same search any Slack user has). Workspace search is unavailable in [channels that include guests](/docs/claude-tag/admins/restrict-access#restrict-guest-channels). Finding something is broader than being able to act somewhere; to have it participate in a channel directly, invite it with `/invite @Claude`.
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