Art skill documentation missing model-specific size requirements

[MorgsBrew]

Labels: bug, documentation

Description

The Art skill documentation shows --size 2K as the primary example without explaining that size formats are model-specific. This causes Claude to repeatedly fail when switching models, as it keeps using the wrong size
format.

Current Behavior

Claude reads the docs, sees --size 2K as the example, then uses this format for all models. When switching to flux or gpt-image-1, it fails repeatedly:

Error: Invalid size for flux: 2K. Must be: 1:1, 16:9, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 21:9
Error: Invalid size for gpt-image-1: 1K. Must be: 1024x1024, 1536x1024, 1024x1536

Expected Behavior

Model	--size Format	Valid Values
nano-banana-pro	Resolution	1K, 2K, 4K (requires --aspect-ratio)
flux	Aspect ratio	1:1, 16:9, 3:2, etc.
gpt-image-1	Pixel dimensions	1024x1024, 1536x1024, 1024x1536

Affected Files

• Packs/pai-art-skill/src/skills/Art/SKILL.md
• Releases/v2.3/.claude/skills/Art/SKILL.md

Proposed Fix

Add a prominent "Model-Specific Size Requirements" section with a table and separate example commands for each model.

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