creating-instructions

Creates instruction files and scoped rules that agents apply automatically: repository-wide guidance (copilot-instructions.md, CLAUDE.md, AGENTS.md) and file-scoped rules (Copilot .instructions.md with applyTo, Claude Code .claude/rules/ with paths, Codex AGENTS.md), plus rules in this collection's single-source format. Use when encoding project conventions, choosing how narrowly a rule should apply, splitting an overgrown instructions file, or porting rules from one tool to another. For step-by-step workflows, use creating-skills; for enforcement that must not depend on the model, use creating-hooks.