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 agentmods add skills/kirodotdev/kirocrew/computer-usenpx skills add kirodotdev/KiroCrew --skill computer-usegit clone --depth 1 https://github.com/kirodotdev/KiroCrewWhat 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 | $0.00105 | $0.06927 |
| Opus 5 | $0.00053 | $0.03463 |
| Sonnet 5 | $0.00021 | $0.01385 |
| Haiku 4.5 | $0.00011 | $0.00693 |
Grade A, and why
computer-use 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 2d ago.
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 — 464 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Computer Use — driving native desktop apps
You have MCP tools that read and operate the user's real applications through
the operating system's accessibility layer. This is not a browser: use it when the
work lives in a desktop app (a spreadsheet, a PDF viewer, a native internal tool,
a dialog box), and use playwright-cli (the web-browse skill) for web pages.
Two things to internalise before your first call:
- Address elements by index, from a snapshot you were just shown. That is the path to prefer for everything: it activates the control directly, it is checked against drift, and the mouse pointer does not move. Coordinates exist as a fallback for canvases, maps and custom-drawn UI that expose no element — see Coordinates and dragging.
- It is off unless the user turned it on (Settings → Computer Use). The full tool set runs on macOS and Windows alike. They differ in ONE way worth relaying: Windows has no per-process input, so a keystroke takes the user's keyboard focus and a coordinate click moves their real cursor. A "disabled" or "not supported" refusal is a real configuration answer, not a transient error — relay it and stop; do not retry.
The loop
1. Find the app.
computer_list_apps()
Returns the on-screen applications with their bundle ids, pids and window titles.
Skip this if the user named an app you can pass straight through — app accepts a
display name ("Finder", "Preview") or a bundle id
("com.apple.finder"), matched case-insensitively.
If the app you need is not running, open it:
computer_launch_app(app="Paint")
Give the app's NAME as the OS knows it — the name in the Start menu or the Applications folder. A filesystem path, a command line and a document are all refused, because this opens an application and nothing else; if you find yourself wanting to pass a path, the answer is to launch the app and then use the tools below to open the file from inside it.
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.
- 2d ago First seen · 464 lines · 105 tokens per session scan A 9db7e0415afe
computer-use is a skill published in the GitHub repository kirodotdev/KiroCrew (3,532 stars, last pushed today), licensed Apache-2.0. It adds 105 tokens to every session and 6,927 once invoked, about $0.0005 per session on Opus 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 2026-08-30.
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