Add skill: macos-golden-gate-design 🤖🤖🤖

[gambadio]

Summary

Adds a focused Agent Skill for designing, implementing, reviewing, and refactoring native macOS 27 Golden Gate interfaces in SwiftUI or AppKit. It emphasizes integrated panes, restrained Liquid Glass, native controls, clear visual boundaries, exact-node Figma inspection, accessibility, and removal of unnecessary nested containers.

The canonical MIT-licensed source is https://github.com/gambadio/macos-golden-gate-design. This contribution includes the skill instructions and three referenced guidance files.

Validation

• npm ci
• npm run skill:validate
• npm run build
• bash eng/fix-line-endings.sh
• npm run skill:validate
• npm run build
• git diff --check

All 419 skills passed validation and the generated skills index includes macos-golden-gate-design.

Security

The skill treats fetched webpages, Figma content, repositories, and attachments as untrusted reference material and explicitly ignores embedded instructions or scope-expanding requests.

[github-actions]

🔒 PR Risk Scan Results

Scanned 4 changed file(s).

Severity	Count
🔴 High	0
🟠 Medium	0
ℹ️ Info	0

✅ No matching risk patterns were detected in changed files.

This is an automated soft-gate report. Findings indicate review targets and do not block merge by themselves.

[github-actions]

🔍 Vally Lint Results

✅ All checks passed

Scope	Checked
Skills	1
Agents	0
Total	1

Severity	Count
❌ Errors	0
⚠️ Warnings	0
ℹ️ Advisories	0

Summary

Level	Finding
ℹ️	✅ macos-golden-gate-design (2/2 checks passed)
ℹ️	✓ [spec-compliance] All 1 skill(s) are spec-compliant.
ℹ️	✓ spec-compliance: All spec checks passed.
ℹ️	✓ [valid-refs] All file references across 1 skill(s) are valid.
ℹ️	✓ valid-refs: All file references resolve to existing files within the skill directory.
ℹ️	1 skill(s) linted, 1 passed

Full linter output

### Linting skills/macos-golden-gate-design
✅ macos-golden-gate-design (2/2 checks passed)
    ✓ [spec-compliance] All 1 skill(s) are spec-compliant.
        ✓ spec-compliance: All spec checks passed.
    ✓ [valid-refs] All file references across 1 skill(s) are valid.
        ✓ valid-refs: All file references resolve to existing files within the skill directory.

1 skill(s) linted, 1 passed