--- title: Computer Use sidebar_position: 16 --- # Computer Use Hermes Agent can drive your desktop — clicking, typing, scrolling, dragging — in the **background** on **macOS, Windows, and Linux**. Your cursor doesn't move, keyboard focus doesn't change, and your virtual desktops / Spaces don't switch on you. You and the agent co-work on the same machine. Unlike most computer-use integrations, this works with **any tool-capable model** — Claude, GPT, Gemini, or an open model on a local OpenAI-compatible endpoint. There's no Anthropic-native schema to worry about. ## How it works The built-in `computer_use` toolset is the recommended Hermes integration. It speaks MCP over stdio to [`cua-driver`](https://github.com/trycua/cua), an open-source background computer-use driver. Each platform uses the appropriate accessibility + input stack under the hood: | Platform | Accessibility tree | Input dispatch | |---|---|---| | macOS | AX (private SkyLight SPIs) | `SLPSPostEventRecordTo` — pid-scoped, no cursor warp | | Windows | UIAutomation | `SendInput` + `PostMessage` — no focus steal | | Linux | AT-SPI (X11 + Wayland) | XTest (X11) / virtual-keyboard (Wayland) | The result is the same on every platform: the agent can read the accessibility tree of any visible window AND post synthesized events without bringing it to front, switching virtual desktops, or moving the real OS cursor. For the underlying contract — *why* background mode matters, the no-foreground invariant, click-dispatch internals — see **[cua.ai/docs/explanation/the-no-foreground-contract](https://cua.ai/docs/explanation/the-no-foreground-contract)**. ## Enabling **Fresh installs already have the driver.** The Hermes installer (`install.sh` / `install.ps1`) pre-installs `cua-driver` (best-effort; pass `--skip-computer-use` / `-SkipComputerUse` to opt out), so enabling Computer Use is just a config flip: - **`hermes tools`** → pick `🖱️ Computer Use` — installs the driver automatically if it's still missing. - **Dashboard / desktop app** → toggle the Computer Use toolset — if the driver is missing, the toggle kicks off the install in the background automatically (watch progress in the toolset panel). **Manual fallback (older installs, skipped installer step):** ``` hermes computer-use install ``` This fetches and runs the upstream cua-driver installer — `install.sh` on macOS/Linux, `install.ps1` on Windows. Use `hermes computer-use status` to verify the install. Already have cua-driver? Hermes reuses it when it supports the 0.20 runtime contract. During setup, toolset enablement, `hermes update`, and the first `computer_use` call of a session, Hermes checks the local version and manifest. It repairs an old or incomplete standard installation through the upstream installer (at most once per session at runtime). A binary selected with `HERMES_CUA_DRIVER_CMD` stays under your control, so Hermes reports the incompatibility and leaves it unchanged. If you install Cua Driver first, `cua-driver skills install` installs Cua's skill pack under `~/.cua-driver/skills/cua-driver`. Hermes autodetection is a planned cua-driver follow-up, so currently point Hermes at that directory or symlink it into your skill space. You can also register raw Cua MCP tools as a custom MCP server, but that is an alternative for users who need the low-level interface. The built-in toolset provides Hermes actions, configuration, approvals, and diagnostics. After installing, regardless of which path you took, grant the platform-appropriate prereqs: | Platform | Prereqs | |---|---| | **macOS** | System Settings → Privacy & Security → **Accessibility** + **Screen Recording**. Grant the identity named by `hermes computer-use doctor`. Standard mode uses CuaDriver.app; bounded and unrestricted modes use the Hermes host identity. | | **Windows** | None at install time. If you're driving over SSH (not RDP / console), you need the autostart pattern — see [cua.ai/docs/how-to-guides/driver/windows-ssh](https://cua.ai/docs/how-to-guides/driver/windows-ssh) for the Session 0 ↔ Session 1+ proxy. | | **Linux** | A reachable display server: `DISPLAY` set for X11, or `XDG_SESSION_TYPE=wayland`. Wayland sessions need an XWayland bridge for capture. AT-SPI must be on (default on GNOME/KDE/Xfce). | Then start a session with the toolset enabled: ``` hermes -t computer_use chat ``` or add `computer_use` to your enabled toolsets in `~/.hermes/config.yaml`. ## Permission modes and logged-in browser profiles Hermes maps its existing approval UX onto cua-driver's immutable runtime modes. Permission mode and capability manifest approval are launch settings. They cannot change after the runtime starts: | Hermes session | cua-driver mode | Human intervention | |---|---|---| | Manual or smart approvals (default) | `standard` | Normal Hermes approvals; Cua stops at its protected boundary | | `computer_use.permission_mode: bounded` + reviewed manifest | private `bounded` daemon | You review and approve the capability manifest once, at launch | | `--yolo`, `/yolo`, or `approvals.mode: off` | private `unrestricted` daemon | One explicit Hermes risk acceptance; no runtime Cua prompts | Browser work — including pages in a signed-in profile — goes through the `browser` toolset (`browser_exec`), not `computer_use`. The former `computer_use.grant_existing_profile` opt-in was removed along with the typed browser route; a leftover key in config.yaml is ignored. ### Bounded mode for repeatable automation For recurring browser automation (cron jobs, scheduled research against an authenticated app), `bounded` mode uses a capability manifest you review once: ```yaml # config.yaml computer_use: permission_mode: bounded capability_manifest: ~/.hermes/cua-manifest.yaml ``` The manifest names the apps, browser profile kinds, allowed origins, and typed tools the session may use (see the [cua-driver permission modes reference](https://cua.ai/docs/reference/cua-driver/permission-modes) for the format). Hermes launches a private runtime with `--capability-manifest ... --approve-capability-manifest`; anything outside the manifest fails closed inside cua-driver. A missing or unreadable manifest fails loudly at session start rather than silently downgrading. Session YOLO still overrides bounded for that one session. On macOS, private-session daemons launch through the installed `CuaDriver.app` bundle (so permission grants attribute to the driver's own identity instead of resetting with every Hermes build), and Hermes verifies the bundle's code signature — exact `com.trycua.driver` identifier and the official signing team — before launching it. If you build cua-driver from source (unsigned), opt in explicitly: ```yaml # config.yaml computer_use: allow_unsigned_driver: true # local driver development only ``` Each MCP transport owns a private lifecycle session inside its runtime. A public session name is only a label for cursor identity and session-scoped state. It does not select, share, or keep a runtime alive. Turning `/yolo` off, resetting or closing the Hermes session, cancellation cleanup, or process exit closes that transport session. Hermes also stops private runtimes that it launched for bounded or unrestricted access. One Hermes conversation cannot change another runtime's mode or grants. Bounded and unrestricted modes use a private embedded service under the Hermes host identity. `smart` approval remains `standard`: an LLM classification cannot stand in for a reviewed manifest.
YOLO/unrestricted mode does not protect against prompt injection or unintended input. Use it only in a disposable VM or with accounts and data whose full compromise you accept.
## `hermes computer-use doctor` — your first triage stop `hermes computer-use doctor` runs cua-driver's structured `health_report` MCP tool and prints a per-check matrix. It's the single fastest way to find out *why* an action isn't working. ``` $ hermes computer-use doctor ⚠️ cua-driver VERSION on darwin: degraded ✅ binary_version: cua-driver VERSION ✅ platform_supported: macOS 26.4.1 (arm64) ✅ session_active: MCP session is active. ❌ bundle_identity: Process has no CFBundleIdentifier. → Run the binary inside CuaDriver.app so TCC grants attribute correctly. ✅ tcc_accessibility: Accessibility is granted. ✅ tcc_screen_recording: Screen Recording is granted. ✅ ax_capability: AX is trusted and reachable. ✅ screen_capture_capability: ScreenCaptureKit reachable; 1 display(s) shareable. ``` - **Exit code 0** when overall is `ok` — everything's wired up. - **Exit code 1** when `degraded` or `failed` — at least one check failed; the hint on each failure tells you what to fix. - **Exit code 2** when the cua-driver binary itself isn't reachable. Useful flags: - `--include CHECK` — run only the listed checks (repeat for multiple) - `--skip CHECK` — skip a check (wins over `--include`) - `--json` — emit the raw structured payload, same shape as the `tools/call health_report` MCP response The check matrix is platform-aware: `bundle_identity` / `tcc_*` are `skip` on Windows + Linux because those concepts don't apply. `ax_capability` checks AX on macOS, UIA on Windows, AT-SPI on Linux — each with the right diagnostic hint when it can't reach. ## The agent cursor and sessions When the agent acts, you'll see a **tinted overlay cursor** glide across the screen to where each click / type / scroll lands. The real OS cursor never moves. The overlay shows where the agent is acting. Each Hermes run declares a public cua-driver **session name** (something like `hermes-3a7b9c14d2e8`). The name labels cursor identity and related state, so concurrent runs and subagents get distinct cursors. The MCP transport owns the private lifecycle session inside the runtime; the public name does not. The overlay cursor is cosmetic — captures, clicks, and typing all work without it. Hermes disables it automatically where it is a known failure mode: macOS (idle CPU burn), headless Linux / WSL2 / containers, and **Linux X11 desktops** (the overlay is a fullscreen always-on-top window that can get stuck over every workspace after an unclean session end, wedging desktop input). Linux Wayland and Windows keep the overlay. Set `computer_use.no_overlay: false` in `config.yaml` to force the cursor on (or `true` to force it off) on any platform. Tune the cursor with `cua-driver`'s CLI flags or the runtime `set_agent_cursor_style` MCP tool — see [cua.ai/docs/how-to-guides/driver/personalize-cursor](https://cua.ai/docs/how-to-guides/driver/personalize-cursor) for the full menu (built-in `arrow` vs `teardrop` silhouette, custom SVG / PNG / ICO via `--cursor-icon`, runtime gradient colors, bloom halo). ## Going deeper — the cua-driver skill pack Hermes keeps its wrapper skill (`skills/autonomous-ai-agents/computer-use/SKILL.md`) focused on the Hermes-side `computer_use` workflow and action vocabulary. For platform details, recording semantics, browser page interaction, and other deep Cua behavior, install the skill pack that the cua-driver team ships and maintains directly: ``` cua-driver skills install ``` The command installs the pack under `~/.cua-driver/skills/cua-driver`. Hermes autodetection is a planned cua-driver follow-up, so currently point Hermes at that directory or symlink it into your skill space. The wrapper remains the workflow layer and points to Cua's installed skill for driver behavior. The pack contains: | File | Topic | |---|---| | `SKILL.md` | The cross-platform core (snapshot invariant, no-foreground contract, click dispatch, AX-tree mechanics) | | `MACOS.md` | macOS specifics: no-foreground contract, AXMenuBar navigation, SkyLight click dispatch, Apple Events JS bridge | | `WINDOWS.md` | Windows specifics: UIA tree, UWP / `ApplicationFrameHost` hosting, Session 0 isolation, autostart pattern | | `LINUX.md` | Linux specifics: AT-SPI tree, X11 / Wayland, terminal-emulator detection | | `RECORDING.md` | Trajectory + video recording semantics | | `WEB_APPS.md` | Browser-page interaction tips | | `TESTS.md` | Replay-by-trajectory workflow | These are **platform deep dives, not duplicates of the Hermes skill** — when an agent reports "on Windows, my click landed on the wrong element," it reads `WINDOWS.md` for the UIA / UWP context that explains why and what to do differently. `cua-driver skills status` shows what's installed and which agent harnesses it's linked into. Today the autodetect list covers Claude Code, Codex, OpenCode, OpenClaw, and Antigravity; **Hermes autodetection is planned as a follow-up in `trycua/cua`** — until then, run `cua-driver skills install` once and point your harness at the resulting `~/.cua-driver/skills/cua-driver` directory (or symlink it into your usual skill space). ## Quick example User prompt: *"Find my latest email from Stripe and summarise what they want me to do."* The agent's plan (this is the same shape on macOS / Windows / Linux — the model substitutes the platform's idiomatic shortcut and app name): 1. `computer_use(action="capture", mode="som", app="Mail")` — gets a screenshot of the email app with every sidebar item, toolbar button, and message row numbered. 2. `computer_use(action="click", element=14)` — clicks the search field. 3. `computer_use(action="type", text="from:stripe")` 4. `computer_use(action="key", keys="return", capture_after=True)` — submit and get the new screenshot. 5. Click the top result, read the body, summarise. During all of this, your cursor stays wherever you left it and the email app never comes to front. ## Receiving the actual screenshot Screenshots taken during computer control are normally internal — they exist so the model can see the screen, and the agent replies in text. But every image capture also saves a bounded, shareable copy under Hermes' image cache and reports its path, so on attachment-capable surfaces (Telegram, Discord, Desktop, and other gateway platforms) you can simply ask: > *"Send me a screenshot of my screen."* and the agent delivers the real image as a native attachment, not just a description. On the CLI there is no attachment channel, so the agent gives you the saved file's path instead. Only the 20 most recent capture files are kept, and screenshots are never sent automatically — only when you ask for one. ### Whole screen vs. desktop surface "Screenshot my screen" captures **everything currently displayed** — a composited grab of all visible windows, like pressing PrtScn. This image has no clickable elements, so to *act* on something in it the agent re-captures the specific app. Asking for the **desktop** instead targets the OS shell surface itself — wallpaper, desktop icons, taskbar — with its clickable elements, so requests like "open the Recycle Bin on my desktop" still work. ## Provider compatibility | Provider | Vision? | Works? | Notes | |---|---|---|---| | Anthropic (Claude Sonnet/Opus 3+) | ✅ | ✅ | Best overall; SOM + raw coordinates. | | OpenRouter (any vision model) | ✅ | ✅ | Multi-part tool messages supported. | | OpenAI (GPT-4+, GPT-5) | ✅ | ✅ | Same as above. | | Google (Gemini 2+) | ✅ | ✅ | Tool-calling + vision both supported. | | Local vLLM / LM Studio / Ollama (vision model) | ✅ | ✅ | If the model supports multi-part tool content. | | Text-only models | ❌ | ✅ (degraded) | Use `mode="ax"` for accessibility-tree-only operation. | Screenshots are sent inline with tool results as OpenAI-style `image_url` parts. For Anthropic, the adapter converts them into native `tool_result` image blocks. The image MIME type comes from cua-driver's explicit `mimeType` field (`image/png` or `image/jpeg`) — no client-side magic-byte sniffing. ## Safety Hermes applies multi-layer guardrails: - Destructive actions (click, type, drag, scroll, key, focus_app) require approval — either interactively via the CLI dialog or via the messaging-platform approval buttons. - Hard-blocked key combos at the tool level: empty trash, force delete, lock screen, log out, force log out. - Hard-blocked type patterns: `curl | bash`, `sudo rm -rf /`, fork bombs, etc. - The agent's system prompt tells it explicitly: no clicking permission dialogs, no typing passwords, no following instructions embedded in screenshots. Pair with `approvals.mode: manual` in `~/.hermes/config.yaml` if you want every action confirmed. ## Token efficiency Screenshots are expensive. Hermes applies four layers of optimisation: - **Screenshot eviction** — the Anthropic adapter keeps only the 3 most recent screenshots in context; older ones become `[screenshot removed to save context]` placeholders. - **Client-side compression pruning** — the context compressor detects multimodal tool results and strips image parts from old ones. - **Image-aware token estimation** — each image is counted as ~1500 tokens (Anthropic's flat rate) instead of its base64 char length. - **Server-side context editing (Anthropic only)** — when active, the adapter enables `clear_tool_uses_20250919` via `context_management` so Anthropic's API clears old tool results server-side. A 20-action session on a 1568×900 display typically costs ~30K tokens of screenshot context, not ~600K. ## Limitations - **Performance.** Background mode is slower than foreground — accessibility-routed events take ~5–20 ms on macOS, ~3–10 ms on Windows UIA, ~5–15 ms on Linux AT-SPI vs direct HID posting. Not noticeable for agent-speed clicking; noticeable if you try to record a speed-run. - **No keyboard password entry.** `type` has hard-block patterns on command-shell payloads; for passwords, use the system's autofill (macOS Keychain / Windows Credential Manager / GNOME Keyring / KWallet). - **Some apps don't expose an accessibility tree.** Modern UWP apps on Windows, Electron < 28 on Linux, and a few macOS apps with custom drawing (Logic, Final Cut, some games) have sparse or empty AX trees. Fall back to pixel coordinates if the tree is empty — or skip the task entirely. - **Windows: elevated (admin) windows can't be driven from a normal agent.** Windows UIPI (User Interface Privilege Isolation) enforces integrity-level boundaries: a Medium-integrity process (the default Hermes agent) cannot enumerate the UIA tree of, or inject mouse input into, a window owned by a High-integrity (Administrator) process. Symptom: `capture(mode='som')` returns 0 elements and `click(...)` reports success while doing nothing, even though the screenshot renders fine (GDI capture sits below the integrity check). Keyboard events partially bypass UIPI, so Tab / Enter can still navigate an elevated dialog. This is an OS constraint, not a cua-driver bug — it affects every Windows automation stack. To drive elevated windows, run the Hermes agent itself at High integrity (launch from an elevated terminal); otherwise target non-elevated windows. - **Platform-specific deployment gotchas:** - **macOS** uses private SkyLight SPIs. Apple can change them in any OS update. Hermes warns when the installed cua-driver is older than the version it was tested against. - **Windows** SSH sessions run in **Session 0**, which has no interactive desktop. Drive Hermes from inside the RDP / console session, or set up cua-driver's autostart Scheduled Task — [windows-ssh](https://cua.ai/docs/how-to-guides/driver/windows-ssh) has the recipe. - **Linux** requires a reachable display server. Headless servers need Xvfb (`Xvfb :99 -screen 0 1920x1080x24`) before `computer_use` can capture or inject events. Pure Wayland sessions need an XWayland bridge for screen capture (cua-driver's Wayland inject path handles input independently). For cross-platform GUI automation without the desktop overhead (and without TCC / Session 0 / X11 setup), the `browser` toolset uses a real headless Chromium and is the right answer for web-only tasks. ## Configuration Permission mode and manifest (see [Permission modes](#permission-modes-and-logged-in-browser-profiles) above): ```yaml computer_use: permission_mode: standard # standard (default) | bounded capability_manifest: "" # capability manifest path, required for bounded ``` Override the driver binary path (tests / CI / local builds): ``` HERMES_CUA_DRIVER_CMD=/path/to/your/cua-driver ``` Swap the backend entirely (for testing): ``` HERMES_COMPUTER_USE_BACKEND=noop # records calls, no side effects ``` ### Telemetry cua-driver ships with anonymous usage telemetry (PostHog) enabled by default upstream. **Hermes disables it for you** — on every cua-driver invocation (the MCP backend, `status`, `doctor`, and install) Hermes sets `CUA_DRIVER_RS_TELEMETRY_ENABLED=0` in the driver's environment. To opt back in (let cua-driver use its own default and send telemetry), set this in `config.yaml`: ```yaml computer_use: cua_telemetry: true # default: false (telemetry off) ``` When it's on, `hermes computer-use doctor` reports `telemetry: enabled`; when off (the default), it reports `telemetry: disabled via CUA_DRIVER_RS_TELEMETRY_ENABLED`. ## Testing against a local cua-driver build When you're developing cua-driver itself — or want to test an unreleased fix — point Hermes at a binary you built from source instead of the published release. Hermes resolves the driver with `shutil.which("cua-driver")` and **does not enforce `HERMES_CUA_DRIVER_VERSION`**, so a local build (reported as `0.0.0-local-*`) is accepted as-is. Two approaches: ### Option A — `install-local` (build + put it on PATH) From your `trycua/cua` checkout, run the upstream local installer. It builds the Rust backend in release mode and drops `cua-driver` into the same install layout the production installer uses, adding its bin dir to your PATH: ```powershell # Windows (PowerShell), from the cua repo root ./libs/cua-driver/scripts/install-local.ps1 -NoAutoStart ``` ```bash # macOS / Linux, from the cua repo root (defaults to a debug build without --release) ./libs/cua-driver/scripts/install-local.sh --release ``` - Windows stages the build under `%USERPROFILE%\.cua-driver\packages\…` and junctions `%LOCALAPPDATA%\Programs\Cua\cua-driver\bin` (added to your User PATH) to it. macOS/Linux symlinks `cua-driver` into `~/.local/bin` (override with `--bin-dir `). - `-NoAutoStart` skips registering the `cua-driver-serve` logon daemon — you don't need it for Hermes testing (see notes). Then open a fresh shell (so the PATH change is visible) and confirm: ``` cua-driver --version # local builds report 0.0.0-local-release # Windows: (Get-Command cua-driver).Source # macOS/Linux: which cua-driver ``` ### Option B — point Hermes straight at the built binary (fastest loop) Skip the install ceremony entirely: `cargo build` and set `HERMES_CUA_DRIVER_CMD` to the resulting binary. Best for rapid edit/build/test. ```bash cargo build -p cua-driver # add --release for a release build; run from libs/cua-driver/rust ``` ``` # Windows (.env) HERMES_CUA_DRIVER_CMD=C:\path\to\cua\libs\cua-driver\rust\target\debug\cua-driver.exe # macOS / Linux (.env) HERMES_CUA_DRIVER_CMD=/path/to/cua/libs/cua-driver/rust/target/debug/cua-driver ``` ### Confirm Hermes is using your build - `hermes computer-use status` prints the resolved binary path and version. - `hermes computer-use doctor` confirms the binary is reachable and exercises the full MCP path end-to-end. - In a session, `computer_use(action="capture")` exercises the spawned `cua-driver mcp` child process. ### Notes & gotchas - **Hermes spawns a `cua-driver mcp` stdio proxy.** In a normal session the proxy connects to (and may start) the standard machine daemon. In explicit Hermes YOLO, Hermes instead owns a private `cua-driver serve --embedded` child and points the proxy at its private socket or named pipe. The Windows autostart/UIAccess pattern still matters for interactive Session 1+ input from SSH — see the Limitations section. - **Locked binary on Windows.** A running `cua-driver-serve` daemon can hold `cua-driver.exe` and block an overwrite on rebuild. `install-local.ps1` renames the locked binary out of the way automatically; if you `cargo build` manually (Option B), stop it first with `cua-driver autostart disable` (or `schtasks /End /TN cua-driver-serve`). - **Rebuild loop.** After editing cua-driver source, re-run `install-local` (rebuilds, restages, flips the `current` junction) for Option A, or just re-`cargo build` for Option B — no Hermes change needed either way. - **Local builds skip the version check.** Hermes warns when the installed cua-driver is older than its per-OS tested baseline, but exempts `0.0.0-local-*` dev builds — so your local build never triggers that warning. ## Troubleshooting **First action when anything's off: run `hermes computer-use doctor`.** The structured per-check matrix tells you (and any agent helping you debug) exactly what's wrong. Specific failure modes the doctor doesn't catch: **`computer_use backend unavailable: cua-driver is not installed`** — Run `hermes computer-use install` to fetch the cua-driver binary, or run `hermes tools` and enable the Computer Use toolset. **Clicks seem to have no effect** — Capture and verify. A modal you didn't see may be blocking input. Dismiss it with `escape` or the close button. **Element indices are stale** — SOM indices are only valid until the next `capture`. Re-capture after any state-changing action. The wrapper carries opaque `element_token`s for stale detection — you'll see an explicit error rather than a wrong click. **"blocked pattern in type text"** — The text you tried to `type` matches the dangerous-shell-pattern list. Break the command up or reconsider. **Empty captures on Linux** — `DISPLAY` not set, or you're on pure Wayland without an XWayland bridge. `hermes computer-use doctor` will flag this as `ax_capability: fail` with a `Set DISPLAY (X11)…` hint. **Empty captures on Windows over SSH** — You're in Session 0 (the services session). Drive from RDP / console directly, or set up the autostart pattern — see [cua.ai/docs/how-to-guides/driver/windows-ssh](https://cua.ai/docs/how-to-guides/driver/windows-ssh). ## See also - **Hermes-side skill** — `skills/autonomous-ai-agents/computer-use/SKILL.md` — teaches the Hermes `computer_use` action vocabulary; this is what the agent loads. - **cua-driver skill pack** — for platform-specific deep dives (macOS no-foreground contract, Windows UIA + Session 0, Linux AT-SPI + X11/Wayland, recording, browser pages), run `cua-driver skills install` and read `MACOS.md` / `WINDOWS.md` / `LINUX.md` / `RECORDING.md` / `WEB_APPS.md`. Hermes autodetection is a planned follow-up; currently point Hermes at the installed pack directory or symlink it into your skill space. - **cua.ai/docs** — the cua-driver project's documentation: - [What is computer use?](https://cua.ai/docs/explanation/what-is-computer-use) — concept intro - [The no-foreground contract](https://cua.ai/docs/explanation/the-no-foreground-contract) — *why* background mode matters - [Install reference](https://cua.ai/docs/how-to-guides/driver/install) — cross-platform install details - [Personalize the agent cursor](https://cua.ai/docs/how-to-guides/driver/personalize-cursor) — built-in shapes, custom assets, runtime overrides - [Drive Windows over SSH](https://cua.ai/docs/how-to-guides/driver/windows-ssh) — the Session 0 → Session 1+ autostart pattern - [Keep cua-driver running](https://cua.ai/docs/how-to-guides/driver/keep-running) — autostart / daemon lifecycle - [Connect your agent](https://cua.ai/docs/how-to-guides/driver/connect-your-agent) — register cua-driver with various harnesses (Hermes among them) - [cua-driver source (trycua/cua)](https://github.com/trycua/cua) - [Browser automation](./browser.md) for cross-platform web tasks where you don't need to drive native apps.