Content Design

WHEN: A prototype or shipped surface contains user-facing text -- labels, buttons, empty states, errors, tooltips, onboarding, confirmations, system messages. This skill is the AgentX canonical content guide. Heuristic H2/H9/H10 from usability-heuristics defers to this skill for the specific copy patterns.

When to Use This Skill

• Writing or reviewing any string a user will read
• Replacing placeholder copy during prototype handoff
• Localizing or rewriting error messages
• Designing onboarding, empty states, or zero-data screens
• Reviewing AI-generated UI text for clarity and safety

Authoritative Sources