Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add openwong2kim/wmux --skill agent-desktop-windowsgit clone --depth 1 https://github.com/openwong2kim/wmuxWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/openwong2kim/wmux/agent-desktop-windows)<a href="https://agentmods.dev/skills/openwong2kim/wmux/agent-desktop-windows"><img src="https://agentmods.dev/badge/skills/openwong2kim/wmux/agent-desktop-windows/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/openwong2kim/wmux/agent-desktop-windows"><img src="https://agentmods.dev/badge/skills/openwong2kim/wmux/agent-desktop-windows.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00119 | $0.02097 |
| Opus 5.5 | $0.00048 | $0.00839 |
| Sonnet 5.5 | $0.00024 | $0.00419 |
| Haiku 4.5 | $0.00012 | $0.00210 |
Grade A, and why
agent-desktop-windows scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agent-desktop-windows
This file covers only what differs on Windows. The observe-act loop, refs, JSON envelope, sessions and tracing are the same on every platform.
Requires Windows 10 1809+ / Windows Server 2019+ (x64 or ARM64). Run it in the interactive desktop session of the signed-in user. Session 0 (services and SYSTEM tasks), Server Core, the secure desktop (UAC prompts, the sign-in screen), a locked desktop and another user's session are not supported: observation, actions and capture there fail or return nothing.
Capability Table
| Group | Commands | Status on Windows |
|---|---|---|
| Observation | snapshot, find, get, is, screenshot |
Works. Surfaces are window, focused, a Chromium modal as sheet, and an open application menu as menu |
| Surfaces | list-surfaces |
Works. Lists window, focused and sheet per process, plus menu with item_count while a menu is open |
| Shell surfaces | open-system-surface |
Works for start-menu, taskbar, system-tray, system-tray-overflow and action-center, and returns the window snapshot --surface <kind> reads. quick-settings returns INVALID_ARGS naming action-center |
| Ref interaction | click, right-click, type, set-value, clear, select, toggle, check, uncheck, expand, collapse, scroll, scroll-to |
Works, semantic in headless and --headed mode. right-click and type need --headed and return POLICY_DENIED headless |
| Multi-click and focus | double-click, triple-click, focus |
Works with global --headed only |
| Keyboard and mouse | press, hover, drag, mouse-click, mouse-move, mouse-wheel |
Works. Cursor-moving input needs --headed. First Contact covers press --app |
| Held input | key-down, key-up, mouse-down, mouse-up |
Fails closed on every platform with ACTION_NOT_SUPPORTED. A headless mouse-down or mouse-up returns POLICY_DENIED first |
| App and window | launch, close-app, list-windows, list-apps, focus-window, resize-window, move-window, minimize, maximize, restore |
Works. First Contact covers the name launch takes |
| Displays | list-displays |
Works |
| Clipboard | clipboard-get, clipboard-set, clipboard-clear |
Works; typed text and image content |
| Wait | wait |
Works for ms, --element, --window, --text, --menu, --menu-closed, --event and --notification |
| Notifications | list-notifications, dismiss-notification, dismiss-all-notifications, notification-action |
Works over the Action Center. Pass --headed when the center is closed |
| Cursor overlay | cursor-overlay |
Works. enable returns data.rendered: true only after the renderer acknowledges over its pipe. See references/shell-and-overlay.md |
| System | status, permissions, version, batch, skills, session, trace |
Works |
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 111 lines · 119 tokens per session scan A 6d1ce79a23ca
agent-desktop-windows is a skill published in the GitHub repository openwong2kim/wmux (448 stars, last pushed yesterday), licensed MIT. It adds 119 tokens to every session and 2,097 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-07.
agent-desktop-windows compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| agent-desktop-windowsopenwong2kim/wmux | Skill | 448 | yesterday | MIT | A | 119 | Claude Code, Codex |
| melayamelaya-labs/melaya-mcp | Skill | 1 | yesterday | Apache-2.0 | A | 206 | Claude Code |
| loopWritbase/writbase | Skill | 11 | 7mo ago | Apache-2.0 | A | 35 | Claude Code, Codex |
| pinchtab-mcppinchtab/pinchtab | Skill | 11k | 11d ago | MIT | A | 52 | Claude Code, Codex |
| tmuxTeam-Commonly/commonly | Skill | 1.4k | today | Apache-2.0 | A | 48 | Claude Code, Codex |
| deja-reflectvshulcz/deja-vu | Skill | 1.4k | yesterday | MIT | A | 49 | Claude Code |
| Agent Browser AutomationPramodDutta/qaskills | Skill | 245 | 5d ago | MIT | A | 37 | Claude Code, Codex |