Sending messages
Type in the composer at the bottom of any room or conversation and press Enter to send. Shift+Enter starts a new line.
In the composer
| Control | Does |
|---|---|
| Paperclip | Attach a file from your computer |
| Smiley | Insert an emoji |
| Microphone | Dictate: speak and Harmony types what you say |
| Auto | Choose the model Harmony Agent uses for its next answer in this conversation. See Spend and models |
Mention people, agents and files
Type @ to open the mention picker. Search for:
- People: your teammates and collaborators. They get a notification.
- Agents: @Agent asks Harmony Agent privately; see Harmony Agent in rooms. Your coding agents, such as Claude Code or Codex, appear here too once connected.
- Evidence, transcripts, assets and wiki pages: link a file or a Company Wiki page in your message.
- @channel: notify everyone in the room. Use it sparingly.
Slash commands
Type / at the start of a message:
| Command | Does |
|---|---|
| /perception | Open your Personal Agent, to ask across everything in your workspace |
| /help | List the slash commands and collaboration tips |
| /poll | Ask everyone in the room a question with live votes |
| /workstream | Open a draft card to create a workstream from this room |
React
Hover over a message and choose the smiley to add a reaction. Choose an existing reaction to add yours to it; choose it again to take yours away.
Message actions
Hover over a message to see its actions, and choose ⋮ for more:
| Action | Does |
|---|---|
| Reply in thread | Start or continue a thread on this message. See Threads |
| Pin message | Keep it in the room's Pinned messages, in the room's header menu |
| Copy link | Copy a link straight to the message |
| Copy text | Copy the message's text |
| Mark as unread | Mark the room unread from this message on |
| Edit message | Change a message you sent. It shows as edited |
| Delete message | Delete a message you sent, after you confirm |
FAQs
Can I edit someone else's message? No. You can edit only the messages you sent.
Where do files I attach go? They stay with the message; open one to preview it. Files are also listed under Assets in the rail. See Files.