> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jinba.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Composing Messages and Attachments
> Using the composer — sending, reference pickers, and file attachments
## Sending messages
* **`Enter`** sends the message; **`Shift + Enter`** inserts a newline. `⌘ + Enter` (`Ctrl + Enter` on Windows) always sends as well
* The Enter that confirms a text conversion in IME-based input (such as Japanese) never sends
* You can switch the send key to `⌘ / Ctrl + Enter` under "**Sending messages**" in [Theme & Language settings](/en/pages/jinba_app_neo/settings/appearance); the keycap chip next to the send button shows the active key. On phones and tablets, Return inserts a line break — use the send button to send
* You can draft additional messages while the AI is still working
## Reply suggestions
After the AI finishes responding, a predicted next reply may appear as gray ghost text in the empty composer.
* Press **Tab** to accept it; it is inserted into the composer for you to edit or send
* Start typing your own text and it disappears
## Reference pickers
Typing certain trigger characters in the composer opens a picker that lets you search agents, connectors, knowledge, and skills by name and embed them in your message as references.
| Trigger | What you can reference |
| ------- | ----------------------------------------------------------------------------------------------------------- |
| `@` | **Agents** — pick the agent to bind this chat to |
| `#` | **Connectors** — tell the AI to use a specific jinba-flow flow or MCP tool by name |
| `[[` | **Knowledge** — attach a registered file or folder as a reference (a folder references its entire contents) |
| `/` | **Skills** — specify a skill you want the AI to use |
Referencing a flow with `#` makes your intent — "run this flow" — unambiguous, so the AI picks the right tool without hesitation. We recommend using it liberally for routine work.
Press Esc to close the picker. Selected references appear as chips and can be removed with the ✕.
## The "+" menu
The "+" button to the left of the composer offers the same actions.
* **Select an agent** — bind the chat to an agent
* **Add files or photos** — attach files
* **Connectors** — pick a connector
## File attachments
Attach documents or images you want analyzed.
* **Drag and drop** onto the composer, or choose from the "+" menu
* There are limits on the number of attachments per message and on file size (an error message will let you know if you exceed them)
* You cannot send until the upload finishes. Please wait for it to complete
Uploads fail if your organization has reached its storage limit. In that case, contact your workspace administrator.
## Pasting large text
Pasting a long text (roughly 2,000 characters or 40 lines and up) condenses it into a compact "**Pasted text**" card above the input instead of flooding the editor.
* Nothing is uploaded — the card's content is merged back into the message when you send
* Remove a card with the ✕; cards are kept with your draft if you navigate away
* Extremely large pastes (1,000,000 characters and up) are attached as a `pasted-text.txt` file instead
## Model and options
The bottom of the composer shows the **AI model** used for this conversation. Hover over the badge to see whether it is the workspace default or a model configured on the agent. The "Options" menu lets you select an agent.
## Selecting an agent
* Choosing an agent with the agent selector in the composer (or `@`) applies that agent's skills, connectors, knowledge, and memory to the conversation
* Choosing "No agent" gives you an ad-hoc chat
* You cannot switch agents after a chat is created. To use a different agent, start a new chat