# Watching my agent work from the phone and the desktop at the same time

> Source: <https://dev.to/joey020907/watching-my-agent-work-from-the-phone-and-the-desktop-at-the-same-time-1edm>
> Published: 2026-08-16 06:49:43+00:00

You'd expect the phone to be a "downgraded" web page. After a side-by-side test, I found some experiences are actually better on mobile.

Before building DeepSeek Phone Harness, I set my own acceptance bar: **the phone must reach 80% of the desktop web experience, or it's not done.**

After finishing, I ran a controlled test: the same task, watched simultaneously on a desktop browser and a phone browser. The result surprised me — **a few experiences are genuinely better on mobile.**

Task: let the agent read the project config, summarize current progress, and run a test.

| Dimension | Desktop web | Phone |
|---|---|---|
| Streaming output | Fine | Fine (typewriter) |
| Tool-call visibility | Present |
Stronger: each card shows the file path; tap for args + result |
| Approvals | Dialog/panel |
Cards inline in the message stream — no page switch |
| Questions | Input takeover |
Option cards, one tap |
| Model switching | Dropdown | Bottom sheet, thumb-reachable |
| Away from desk | Must be at the computer | Works from anywhere |

On desktop, an approval is a separate dialog that interrupts what you're reading. On mobile, I made approvals and questions **cards inserted directly into the message stream** — the context of *where* the agent is and *why* it's asking stays continuous.

"Read file → run command → edit code" — a vertical sequence of tool calls is **made for a portrait screen**. On desktop you juggle logs and lists; on mobile it's one clean timeline:

```
[📄 read]   C:/.../config.json          ● done
[⚙️ pwsh]   npm test                    ● running…
```

Model switching, attachments, card expansion — everything lives within thumb reach.

Mobile is not a replacement for the desktop — **heavy work (editing lots of code, digging logs, multi-terminal) still belongs at a desk.** But mobile closes the desktop's biggest gap: **the moments you're not at the computer.**

**"Wherever you are, your agent is too"** — that's mobile's real value, not "a smaller webpage."

Open source (MIT):

Direct 4G/5G (free Tailscale), three-minute setup, zero npm dependencies.

**Which of your agent tasks could be done while you're away from the desk?** List them below — I'll see what belongs on the roadmap.