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velt-arrows-best-practices

Frontend & websites

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Updated 10-16 04:31

About this skill

Velt Arrows Best Practices

Implementation guide for the Velt Arrows feature — a directional-arrow annotation primitive that lets users draw arrows pinned to DOM elements (or specific regions of them) for visual feedback, design review, and collaborative pointing.

When to Apply

Reference these guidelines when:

  • Setting up Velt Arrows in a React, Next.js, or HTML app
  • Placing the <VeltArrows> (or <velt-arrows>) root component and the <VeltArrowTool> (or <velt-arrow-tool>) trigger
  • Restricting where arrows can be drawn via allowedElementIds (prop OR arrowElement.allowedElementIds() method)
  • Enabling darkMode
  • Replacing the default arrow-tool button with a custom button (child-slot pattern)
  • Styling the arrow tool via CSS ::part(...) hooks
  • Typing against ArrowAnnotation and AnnotationProperty (including arrowLength / arrowAngle) from the data model
  • Calling client.getArrowElement() to get the ArrowElement handle

For general SDK setup (VeltProvider, auth, document identity) see velt-setup-best-practices. For UI-customization concepts that overlap with other Velt features, see velt-comments-best-practices.

Known limitation — wireframe-tag interpolation

Arrows do NOT currently expose <velt-...-wireframe> registrations, so the velt-data / velt-if / velt-class template-variable system available on Comments / Activity / Notifications wireframes is not yet supported on Arrows. Customize via CSS parts and the custom-button slot until wireframe-tag registration ships. This is called out in the relevant rules so agents don't suggest a wireframe pattern that doesn't yet work.

Rule Categories by Priority

Priority Category Impact Prefix
1 API & Setup HIGH api-
2 Configuration HIGH config-
3 Types MEDIUM types-

Quick Reference

API & Setup (HIGH)

  • api-setup — VeltArrows (root) + VeltArrowTool (toolbar trigger); client.getArrowElement(); custom-button child slot pattern

Configuration (HIGH)

  • config-customize — allowedElementIds (prop and method form), darkMode, CSS ::part(container | button-container | button-icon) hooks; wireframe-tag limitation

Types (MEDIUM)

  • types-arrow-annotation — ArrowAnnotation shape (annotationId, from, color, targetElement, position, locationId, location, props, annotationIndex, pageInfo) and AnnotationProperty (viewport dimensions, arrowLength, arrowAngle)

How to Use

Read individual rule files for detailed explanations and code examples:

rules/shared/api/api-setup.md
rules/shared/config/config-customize.md
rules/shared/types/types-arrow-annotation.md

Each rule contains:

  • Why it matters
  • React / Next.js + Other Frameworks code samples
  • Common pitfalls
  • Verification checklist
  • Source pointers to official docs

Compiled Documents

  • AGENTS.md — Compressed index of all rules with file paths (start here)
  • AGENTS.full.md — Full verbose guide with all rules expanded inline