sync-pencil

Synchronize .pen design files with source code bidirectionally.

1|1|Updated Feb 13, 2026
One-click install
npx skills add https://github.com/laststance/skills --skill sync-pencil
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sync-pencil
Source: https://github.com/laststance/skills/tree/main/skills/sync-pencil
Command: npx skills add https://github.com/laststance/skills --skill sync-pencil

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Pencil designs (.pen) and their implementation code often diverge during iterative development. This Skill enables bidirectional synchronization to keep design and code in sync automatically, reducing rework and misalignment.

Core Features & Use Cases

  • Supports design-to-code and code-to-design workflows to maintain parity between visuals and implementation.
  • Provides element-level mapping, diff analysis, and batch-update capabilities for both design and code.
  • Suitable for design handoffs, UI refactors, and feature expansions where designs and code may diverge.

Quick Start

Provide a target design and code and run the bidirectional sync to update either side.

Frequently Asked Questions about sync-pencil

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I keep UI design and code in sync during iterative development?

You can keep UI design and code in sync by using bidirectional synchronization between design files and source code, enforcing element-level mapping and diff analysis to update either side automatically.

What is bidirectional design-to-code synchronization?

Bidirectional design-to-code synchronization is a workflow that aligns visual design files with implementation code, allowing batch updates to either the design or the code to maintain UI parity.

How do I perform a diff analysis between Pencil designs and source code?

You can perform a diff analysis by providing your target design and code to the synchronization workflow, which maps elements and identifies discrepancies to execute batch updates.

Can I update source code from Pencil design files automatically?

Yes, you can update source code automatically from Pencil design files using the design-to-code workflow, which applies element-level mapping and batch updates to align the implementation with the visuals.

Does this synchronization tool work for UI refactors and feature expansions?

Yes, this synchronization tool is specifically suitable for UI refactors, feature expansions, and design handoffs where visual designs and code diverge, requiring parity maintenance.

When should I use code-to-pencil workflows for UI parity?

You should use code-to-pencil workflows when your source code evolves independently of the visual designs, requiring you to push implementation changes back to the design files to maintain parity.