
Custom Instructions for AI Coding Agents Without Duplication
Learn how Copilot, Codex, and Claude load repository instructions, and how we keep one source of truth while preserving tool-specific discovery paths.
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Learn how Copilot, Codex, and Claude load repository instructions, and how we keep one source of truth while preserving tool-specific discovery paths.

A clean .github/ directory is the difference between agents that follow your standards and agents that guess. Here is the layout for skills, agents, and instructions — and the rules that keep each in its lane.