# Sessions
> Follow live agents from their cards, read transcripts, resume past sessions and message agents.
Every live agent has a **card** in the Projects sidebar, under its worktree. Past sessions are listed in the **Agents** panel, where you can read and resume them.
## Agent cards
| Icon | Status | Meaning |
| ---------------------------- | --------------- | ------------------------------------------------------------- |
| Spinner | Working | A turn is running. |
| Yellow alert | Your turn | The agent waits on a permission prompt or a question. |
| Check | Idle | The turn finished. A double check means you have not looked yet. |
| Red ✕ | Interrupted | The turn was cancelled or hit an API error. |
| Red unplug | Detached | Restored after a relaunch, not yet confirmed by the agent. |
A card you have not looked at since it needed you shows its title brighter. Clicking the card or focusing its terminal marks it seen.
- **Click a card** to jump to its terminal.
- **Hover a card** for the agent, status, current activity, model, context use and process.
- **Cycle cards** in the worktree with ⌃ ` and ⌃ ~.
- **Find any live agent** with ⌘ E.
- **rexa: toggle session detail** adds a second line to each card with its activity or model.
A card takes its title from your rename, then the agent's own session title, then its first prompt.
### Card menu
Right-click a card for **Rename**, **Open Transcript**, **Copy Session ID**, **Copy As** (card id, terminal id, transcript path, worktree path), **Reveal Worktree in Finder** and **Remove Card**.
**Remove Card** (⌘ ⌫ in the sidebar) asks first. It forgets the card and leaves the process running.
## Sound
A chime plays when an agent stops working and needs you: it finished, or it waits on your answer. Cancelled turns and restored cards stay silent, and cards that settle together make one sound. Rexa sends no macOS notifications.
Play the chime.
`attention`, `glass`, `submarine`, `tink`, or a path to a sound file.
## Agents panel
⌘ ⇧ A opens the Agents panel in the right dock.
**Agents** lists each installed agent with its CLI version, plan, and memory and skill counts. A yellow **hooks** tag means Rexa's hooks for that agent need attention; run `rexa setup --check`. Click an agent to open its [manage tab](/docs/agents/skills#manage-skills-plugins-and-mcp-servers).
**Sessions** lists the worktree's live sessions, then past ones, with a search field.
## Session history
- **Click a past session** to open its transcript. Rest the pointer on it for a preview.
- **Resume** a past session from its hover button. It opens in a new terminal with the agent's resume command.
- **Copy the session id** from the hover button.
In a repository's main checkout, the list also includes sessions from its other worktrees, labeled with their branch.
## Transcripts
A transcript opens as a center tab. It shows the session's prompts and replies as markdown, the agent's thinking, and each tool call with its result. File edits have a **Review** button that shows the diff. Each turn shows its model, timing and token use.
Paths in a transcript open in a tab. The header has **Resume**, **Copy path** and **Open in new tab**.
A transcript is read when you open it and does not update while the agent works. Reopen it for new turns.
## Inspector
Hover a live session in the Agents panel and choose **Open Inspector** for a read-only view of the session: model, context use, recent messages, files read and edited, and a log of the latest 200 events. Claude Code reports the most detail.
## Message an agent from another
`rexa agent send` writes a message to a live agent, as if typed at its prompt. Agents use it to hand work to each other.
```bash [Terminal]
rexa agent ls # live agents; * marks this terminal's
rexa agent send a-3f2c "Review my last commit"
```
- **A busy agent** is retried every 10 seconds, up to `--max-wait` (default 30s).
- **A finished agent** is resumed with the message.
The **handoff** skill builds on this for a reviewer and worker loop. See [Skills](/docs/agents/skills).