/

Use in your agent

Stroke1.25 px

Corner radius2.00

Preview size24 px

Colour

Field error icon

Interface · Controls

field-error

invalid input · validation error · input error · warning · field

UIUXIcon · 6,863 icons · MIT licence · MCP server · llms.txt

Icon artwork © 2026 UI8, from the IconMCP library, MIT. A few hand icons follow shapes from Phosphor, Tabler (MIT) and Lucide (ISC).