Writing messages
The box at the bottom is a small rich‑text editor, not a single‑line prompt. You can click to put the cursor where you want it, write several paragraphs, and keep a list readable while you write it.
Keys
| Key | Does |
|---|---|
Enter | Send |
Shift + Enter | New line — continuing the list if you are in one |
Enter inside a code block | New line, not send |
Esc | Stop the running turn |
Markdown works as you type: - starts a list, # a heading, backticks a code span, triple backticks a block.
Images
Paste a screenshot, or drop image files anywhere on the session. Each becomes a thumbnail above the box and an inline mention where the cursor was, so you can write around it:
This panel ![screenshot.png] is misaligned on narrow windows.
Images are staged by Vitrino and passed to Claude with the message. There is a limit per message; the composer stops you before you exceed it.
Slash commands
Type / to open the command palette. It lists the commands available in this project — Claude Code's built‑ins, plus anything your project, skills or plugins add.
↑↓move,Tabcompletes,Entercompletes — and sends, if the command takes no arguments.Esccloses the palette and leaves your text alone.- Matching looks at the name, its aliases, and the description, so
/revifindscode-review.
Claude Code's internal plumbing commands — names beginning __ — are not listed. See Slash commands.
While Claude is working
You do not have to wait. Pressing Enter mid‑turn queues the message for Claude's next step rather than blocking, and queued messages appear above the box where you can see and remove them.
Stop halts the turn and holds anything queued, so stopping never loses what you typed.
The context meter
The chip beside the box shows how full the context window is. Its menu breaks down what is using the space and offers Compact now, which summarises the conversation so far to free room.
The reading is an estimate made from the last response, so it can differ from what /context reports. It turns amber at 80%.
Suggested prompts
Claude Code sometimes proposes what you might want next. When it does, the suggestion appears as a chip above the box; Tab puts it in the message so you can edit it before sending. It is never sent for you. Turn them off in Settings → Transcript.