test-mac-app SKILL.md skillA
test-mac-app from tomcounsell/ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tomcounsell/ai/test-mac-app@git:20261027.b1054fcPins git:20261027.b1054fc in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tomcounsell/ai
- Path
skills/valor/bama/skills/ship/test-mac-app/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261027.b1054fc, committed Oct 27, 2026
- Size
- 7,733 bytes
- Repository stars
- 32
- License
- GPL-3.0
Test a macOS app at three levels, from Swift Testing unit tests and an in-app self-test to a debug bridge that lets an agent drive the running app and read its state, plus computer use for real clicks. Use when adding logic, fixing a bug, before a release, or when the user asks for tests, end-to-end checks, or "make sure it works".
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
# Test a Mac app
Three levels, cheapest first. Each new story gets the cheapest level that
can prove its acceptance criteria. A bug fix starts with a test that fails.
| Level | Proves | Speed |
| --- | --- | --- |
| Unit tests (Swift Testing) | Rules, parsing, data | Seconds |
| Self-test (`--selftest`) | The app's real functions on a test store | Seconds |
| Key events and menu audit (inside the self-test) | Keyboard flows and every shortcut, without the screen | Seconds |
| Debug bridge + computer use | Global shortcuts, panels, permissions, other apps | Minutes |
Snapshots (`build-and-verify` skill) prove how it looks. This skill proves
how it behaves.
## 1. Unit tests
Logic lives in a library target (`<App>Kit`) with no SwiftUI, so tests run
without the app.
```swift
import Testing
@testable import AppKitCore
@Test("Natural dates", arguments: [("tomorrow 9am", 1, 9), ("next fri", 5, nil)])
func parses(_ phrase: String, dayOffset: Int, hour: Int?) throws {
let result = try #require(DateParser.parse(phrase, now: .fixed))
#expect(result.dayOffset == dayOffset)
#expect(result.hour == hour)
}
```
```bash
…Read the whole file at its exact version.
How to install
mdr add tomcounsell/ai/test-mac-app@sha256:8b1abeff6fbef608The line at the top of this page pins the label git:20261027.b1054fc, 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_q7nijypavqadfbku)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 27, 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 (7733 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
tomcounsell/ai · 32 stars · license GPL-3.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_q7nijypavqadfbku GET https://markdownregistry.com/api/v1/resolve?ref=tomcounsell/ai/test-mac-app GET https://markdownregistry.com/api/v1/blob/8b1abeff6fbef6089d5acd7aff44292dcf7501a52904e4faa30478e690d9bbab
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.