duo-setup SKILL.md skillA
duo-setup from kimeur/duology is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kimeur/duology/duo-setup@git:20261018.dfcd3c5Pins git:20261018.dfcd3c5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kimeur/duology
- Path
plugins/duology/skills/duo-setup/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261018.dfcd3c5, committed Oct 18, 2026
- Size
- 21,048 bytes
- Repository stars
- 13
- License
- MIT
Sets up a Mac to build, run and test apps for iPhone Duo, the foldable iPhone with an outer display and an inner display, covering Xcode 27.1 next to an older Xcode with DEVELOPER_DIR (no sudo xcode-select), xcodebuild -version, the iOS 27.1 SDK and runtime, the iPhone Duo simulator in Device Hub (xcrun simctl create/bootstatus, a screenshot of each display, the Closed / Partially Open / Open poses and the fold angle), Xcode's MCP server for Claude Code…
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
# duo-setup Get a Mac ready to build and test apps for iPhone Duo. Work through the steps in order. Each step has a check. Run it, compare the output, and fix the step before you move on. If the Duology plugin is installed, run `/duo-doctor` first. It runs the plugin's `bin/duo-doctor` script, which checks Xcode 27.1, the iPhone Duo simulator in Device Hub and Xcode's agent connection, and says how to fix each failure. Run it again when you finish. Without the plugin, run the checks below by hand. ## Rules - Never run `sudo xcode-select --switch` unless the user decides to. It changes the Xcode that every terminal and tool on the Mac uses. Use `DEVELOPER_DIR` instead. - Put `DEVELOPER_DIR=/Applications/Xcode-27.1.app/Contents/Developer` in front of every `xcrun` and `xcodebuild` call. Claude Code's Bash tool doesn't keep environment variables between calls, so an `export` from an earlier call is gone. Export it only in an interactive terminal. - Ask before you run `xcodebuild -runFirstLaunch` (its help says it agrees to the license) or `xcodebuild -downloadPlatform` (a multi-gigabyte download). …
Read the whole file at its exact version.
How to install
mdr add kimeur/duology/duo-setup@sha256:1f37612ec2b366bbThe line at the top of this page pins the label git:20261018.dfcd3c5, 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_ojiw6zuuwke6dwld)
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Versions
The registry has recorded 1 version of this file, committed on Oct 18, 2026.
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 (21048 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
kimeur/duology · 13 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ojiw6zuuwke6dwld GET https://markdownregistry.com/api/v1/resolve?ref=kimeur/duology/duo-setup GET https://markdownregistry.com/api/v1/blob/1f37612ec2b366bbc294896b73120846483af7c697166c247f801c16b047db46
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.