Who it is for
Mac developers working in Codex on SwiftUI or AppKit codebases.
AI Connectors · Developer Tools
Build macOS Apps
macOS app development, debugging, and packaging guidance
Overview
What Build macOS Apps does
The desktop counterpart to the iOS plugin, aimed at macOS projects inside Codex. It finds local projects, builds and runs them, implements native SwiftUI scenes, and drops into AppKit where SwiftUI does not reach.
Operational concerns get their own treatment: lightweight Logger telemetry, triage of failing tests, inspection of code signing and entitlements, and desktop-specific build or runtime errors. The skills cover AppKit interop, build and run cycles, Liquid Glass, packaging and notarization, signing and entitlements, Swift Package Manager on macOS, SwiftUI patterns, and telemetry.
The plugin is interactive and has read and write access.
What stands out
Packaging, notarization, signing, and entitlements are treated as first-class topics alongside writing the interface.
Availability
Where Build macOS Apps is listed
Build macOS Apps is listed in the ChatGPT apps directory only. OpenAI has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- OpenAI
- Filed under
- Developer Tools
- Listed since
- April 2026
- Authentication
- Authenticates when installed
- Website
- openai.com
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Named skills
Build macOS Apps declares 11 named skills, which puts it in the 6.7% of ChatGPT-listed apps that do.
- appkit-interop
- build-run-debug
- liquid-glass
- packaging-notarization
- signing-entitlements
- swiftpm-macos
- swiftui-patterns
- telemetry
Example prompts from the listing
- Build/refactor native macOS UI, inspect AppKit interop, add telemetry, or debug a macOS app
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This is an independent catalogue entry compiled by Node8 from Build macOS Apps's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with OpenAI, and inclusion here is not an endorsement.
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