cua-macos-lume-sandbox SKILL.md skillA
cua-macos-lume-sandbox from soulmachine/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add soulmachine/skills/cua-macos-lume-sandbox@git:20260818.9955768Pins git:20260818.9955768 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- soulmachine/skills
- Path
cua-macos-lume-sandbox/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260818.9955768, committed Aug 18, 2026
- First version recorded
- Aug 17, 2026
- Size
- 7,613 bytes
- Repository stars
- 3
- License
- MIT
Provision a macOS VM as a cua computer-use sandbox with lume on Apple Silicon — pull or APFS-clone an image, size it, ensure autologin, install cua-driver plus a LaunchAgent, grant TCC unattended when SIP is off, set the guest resolution, and verify with a real screen capture. Use when asked to set up, rebuild, or repair a cua or computer-use sandbox VM, to register the cua-driver MCP server, or when cua-driver reports a daemon in "unknown" state, TCC grants that will not stick, or screenshots…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Provision a macOS cua sandbox VM with lume Turns a [lume](https://github.com/trycua/cua)-managed macOS guest on Apple Silicon into a working [cua](https://cua.ai) computer-use sandbox: `cua-driver` running under a LaunchAgent, Accessibility and Screen Recording granted, and a verified screen capture at the resolution you asked for. **On `macos-tahoe-cua` the run is unattended** — Accessibility, Screen Recording, and full-display capture all come up without anyone at the VM's screen. That hinges entirely on the image; see the decision rule below. One leftover needs a single click: **Tahoe raises a separate "direct capture" consent** that does not live in TCC.db and so cannot be scripted — see [REFERENCE.md §3](REFERENCE.md). Capture works without answering it; the dialog just sits on the desktop, where it will get in the way of UI automation until dismissed. Validated end to end on a Mac Studio M3 Ultra / macOS 26.6.1 host, guest macOS 26.4 (25E246), lume 0.5.3, cua-driver 0.20.0. Every trap the scripts work around is documented in [REFERENCE.md](REFERENCE.md). ## Prerequisites - Apple Silicon Mac; `lume` 0.5.3+ and `jq` on `PATH` …
Read the whole file at its exact version.
How to install
mdr add soulmachine/skills/cua-macos-lume-sandbox@sha256:f61d0176522ec8baThe line at the top of this page pins the label git:20260818.9955768, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qg7ghujpyvkvkl4v)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 17, 2026 and Aug 18, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260818.9955768 latest | 2026-08-18 | 9955768 | 7,613 B | A | view · diff |
| git:20260818.d60854c | 2026-08-18 | d60854c | 7,213 B | A | view · diff |
| git:20260817.2b99e62 | 2026-08-17 | 2b99e62 | 6,825 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7613 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
soulmachine/skills · 3 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qg7ghujpyvkvkl4v GET https://markdownregistry.com/api/v1/resolve?ref=soulmachine/skills/cua-macos-lume-sandbox GET https://markdownregistry.com/api/v1/blob/f61d0176522ec8bad7a92f536015b34438ab436b1a2b19cc1379c6e76724466b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.