Skill: sync-to-copilot

Sync Claude Code knowledge to GitHub Copilot instructions. Two-tier output: project-specific + common protocol.

Quick Summary

Purpose: Keep Copilot instructions in sync with Claude Code workflows, dev rules, and project-reference docs.

Architecture (Two-Tier):

1. .github/copilot-instructions.md — Project-specific (always loaded by Copilot)
   • TL;DR golden rules, decision table
   • Project-reference docs index with READ prompts
   • Key file locations, dev commands