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dmg-creator — measured AI agent skill | DecimalAI

a5c-ai/dmg-creator

SkillScore100Maintained

Create macOS DMG installers with custom backgrounds and app placement

by a5c-ai

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

DevOps & SRE pack

decimalai skills pull a5c-ai-dmg-creator

Get this skill — curl · raw file

curl -fsSL https://app.decimal.ai/s/a5c-ai-dmg-creator/SKILL.md

Raw file: /s/a5c-ai-dmg-creator/SKILL.md ↗ · machine-readable summary at /s/a5c-ai-dmg-creator.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

23 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 9d ago

Yes — +26% lift-35% tokens0% turns100% of whole cases pass with skill (23/23)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-01	✗→✓	▲ Improved	-78%	0%
case-06	✗→✓	▲ Improved	-32%	0%
case-11	✗→✓	▲ Improved	-75%	0%
case-12	✗→✓	▲ Improved	11%	0%
case-13	✗→✓	▲ Improved	-37%	0%

Showing 5 of 23 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 7/31/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

a5c-ai / babysitter

library/specializations/desktop-development/skills/dmg-creator/SKILL.md

View on GitHub ↗

License MITImported 7/31/2026Version v1

Skill contents

SKILL.md

dmg-creator

Create macOS DMG (Disk Image) installers with custom backgrounds, icon positioning, and professional appearance.

Capabilities

Create DMG with custom background
Configure app and Applications link positioning
Set window size and position
Configure icon sizes
Apply custom volume icons
Code sign DMG
Configure license agreements

Input Schema

json
{
  "type": "object",
  "properties": {
    "projectPath": { "type": "string" },
    "appPath": { "type": "string" },
    "outputPath": { "type": "string" },
    "backgroundImage": { "type": "string" },
    "windowSize": { "type": "object" }
  },
  "required": ["projectPath", "appPath"]
}

Using create-dmg

bash
create-dmg \
  --volname "My Application" \
  --volicon "icon.icns" \
  --background "background.png" \
  --window-pos 200 120 \
  --window-size 600 400 \
  --icon-size 100 \
  --icon "MyApp.app" 150 185 \
  --hide-extension "MyApp.app" \
  --app-drop-link 450 185 \
  "MyApp-1.0.0.dmg" \
  "dist/"

Related Skills

macos-notarization-workflow
macos-codesign-workflow

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