.claude/rules Directory - Claude Code
Path-specific rules that only load for matching files.
The .claude/rules/ directory holds path-scoped instructions that only activate when Claude works in matching files. It keeps CLAUDE.md from ballooning.
What it does
Each rule file declares a path pattern and a body of instructions. When Claude touches a file that matches, those instructions join the context for that turn. Rules for frontend components don't waste tokens when Claude is editing the backend, and vice versa.
When to use it
- Language-specific style rules (TypeScript strict mode, Python typing).
- Framework conventions (Next.js app router patterns, Django app structure).
- Per-directory guidance for monorepos with diverse stacks.
- Anything you'd otherwise wrap in "if editing X, do Y" instructions.
Gotchas
- Overly broad patterns load rules for every file. Be specific.
- Rules stack on top of CLAUDE.md - conflicting rules resolve with the narrowest scope winning.
- Rule files are committed artifacts. Treat them like code, review changes.
Official docs: https://code.claude.com/docs/en/memory.md#organize-rules-with-claude-rules
Technical content at the intersection of AI and development. Building with AI agents, Claude Code, and modern dev tools - then showing you exactly how it works.
Was this helpful?
Related Guides
Related Tools
Claude Code
Anthropic's agentic coding CLI. Runs in your terminal, edits files autonomously, spawns sub-agents, and maintains memory...
View ToolCodeburn
Interactive TUI dashboard that shows exactly where your Claude Code and Cursor tokens are going, in real time.
View Tool
Claude Opus 4.7
Anthropic's flagship reasoning model. Best-in-class for coding, long-context analysis, and agentic workflows. 1M token c...
View ToolConductor
Mac app for running parallel Claude Code, Codex, and Cursor agents in isolated workspaces. Watch every agent work at onc...
View ToolRelated Videos
Generate Videos in Codex + Claude Code with This...
Check out HeyGen! https://heygen.1stcollab.com/developersdigest The video introduces HeyGen, an AI video generation platform with a rich API and a CLI that lets developers create, fetch, and manipula...
10x Design in Claude Code and Codex
Try Higgsfield: https://higgsfield.ai/s/higgsfield-general-campaign-developersdigest-juDMTi AI coding agents can build entire websites in minutes, but the default results often still look generic and...
Self Improving Applications with Claude Code & Codex
Build a Self‑Improving Next.js App: Supabase + Vercel Eve + GitHub Issues + Agent Loops Check out Supabase: https://supabase.plug.dev/1wWOTGS The video demonstrates how to build and deploy a self-im...
Related Posts
Claude Outages Are a Workflow Design Problem
Claude outages and 529 overloads expose whether your AI coding workflow has checkpoints, receipts, model-switch paths, a...
Claude Opus 4.8 Is an Agent Honesty Release
Claude Opus 4.8 looks like a benchmark bump, but the developer story is better honesty, dynamic workflows, and effort co...
Skills Marketplace: 312 Claude Code Skills, Curated
A curated directory of 312 Claude Code skills, plus Pro tools for authors who want analytics, version pinning, and a rea...
The Best MCP Servers in 2026: A Complete Directory
A searchable directory of 184+ MCP servers organized by category. Find the right server for databases, browsers, APIs, D...
Anthropic Sonnet 4.5 in Claude Code
Anthropic's Claude Sonnet 4.5 isn't just another model increment. The company claims they've observed it maintaining foc...
Make Your Coding Agents Talk: Voice Summaries with the Rime CLI
The Rime CLI streams natural-sounding text-to-speech straight from your terminal, so Claude Code, Codex, Devin, and Open...
