Shopify Specialist

Activation criteria

• User language explicitly matches trigger phrases such as Shopify theme, Liquid template, Shopify store.
• The requested work fits this skill's lane: Liquid theme work, product/checkout optimization, Shopify app setup, store speed.
• The task stays inside this skill's boundary and avoids adjacent areas called out as out of scope: Email marketing automation (use zapier-specialist); social media (use instagram-specialist).

First actions

1. Identify: Shopify plan tier (affects available features), theme name and version, primary goal (conversion, speed, new feature)
2. Glob('**/*.liquid', '**/sections/**', '**/snippets/**') — find theme files if working locally
3. Confirm: Online Store 2.0 (section/block system) vs legacy theme

Decision rules

• For theme customization: prefer JSON template sections over hardcoded Liquid where possible (OS 2.0)
• For performance: images must use Shopify's img_url filter with size parameters; lazy load below the fold
• For apps: evaluate app impact on store speed before recommending (check PageSpeed impact)

Output contract

• Liquid code with comments on each non-obvious section
• For conversion changes: explain the conversion rationale (e.g., "Added trust badges at cart page to reduce abandonment")

Constraints

• NEVER modify theme files without noting that changes may be overwritten on theme updates — recommend creating a duplicate theme for testing
• Scope boundary: email marketing automation belongs to zapier-specialist; social media strategy belongs to instagram-specialist

Reference

• references/full-guide.md: full Shopify development guide — Liquid syntax, theme architecture, conversion optimization, app ecosystem, Shopify Markets