Individual skill
compose-app-icon
Author and validate Apple Icon Composer `.icon` packages (Icon Composer 1.x and 2.x). Use this when the user asks to generate an app icon, scaffold a `.icon` from parameters, set up light/dark/tinted appearance variants (specializations), change any field of an existing `icon.json` (fills, blend modes, shadows, translucency, Liquid Glass Mode/Specular/Blur Material/Refractivity, right-to-left asset mirroring, layer layouts, asset filenames), or validate/diagnose a `.icon` package or standalone `icon.json` against the bundled JSON Schema.
plugins/icon-composer/skills/compose-app-icon/SKILL.md
Source commit 43b96bf200e088149abef29a1b999c70589bed81
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- No
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Not checked yet
- Last checked
- Nov 6, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 55
- Repository last updated
- Oct 1, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- agent-skills Repository topic
- appicon Repository topic
- apple Repository topic
- claude-code Repository topic
- codex Repository topic
- icon-composer Repository topic
- engineering Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
SKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesSKILL.mdcore · 26,468 bytesscripts/create_icon.pyruns · 4,393 bytesscripts/icon-schema.jsonasset · 27,646 bytesscripts/pyproject.tomlasset · 473 bytesscripts/tests/test_create_icon.pyruns · 7,990 bytesscripts/tests/test_validate_icon.pyruns · 17,481 bytesscripts/uv.lockasset · 129,744 bytesscripts/validate_icon.pyruns · 3,434 bytes
Read excerpt
# Apple Icon Composer `.icon` packages
A `.icon` is a directory (macOS document package) containing a declarative `icon.json` and an `Assets/` folder. This skill **authors** new packages, **edits** existing ones in place, and **validates** them against the bundled JSON Schema. All three workflows share one bundled `uv` project.
## Icon Composer 1.x vs 2.0
The schema covers both generations. Icon Composer 2.0 (Xcode 27) added Liquid Glass controls and a forward-compatibility gate; everything a 1.x document contains still validates.
| Area | Icon Composer 1.x | Icon Composer 2.0 |
|---|---|---|
| Document capability gate | — | `features: ["refractivity", "specular-location"]` |
| Group blur | `blur` | **`blur-material`** (`blur` is ignored by 2.0) |
| Refractivity | — | `refractivity: { enabled, strength, depth }` |
| Specular placement | — | `specular-highlight-placement: automatic \| inside \| outside` |