May 23
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Get Tidy Today! Try CleanMyMac 7 days FREE and use our code AILABS for 20% off - https://clnmy.com/AILABS Claude Code setup for large codebases needs real planning. We cover how to use Claude Code, claude code tips from our own projects, the full claude code setup guide, how to setup claude code properly, and claude code skills that actually load on demand. Community with All Resources 📦: http://ailabspro.io Video Code: V60 We're building The Roundup — a daily newsletter covering the AI stories that actually matter. Join now at: https://www.theroundup.so/ Article: https://claude.com/blog/how-claude-code-works-in-large-codebases-best-practices-and-where-to-start This claude code tutorial goes beyond a basic claude code beginners guide and shows how to setup claude code for projects that actually scale. Most claude code for beginners content stops at a simple install, but the best claude code setup needs much more than that, because agents start failing the moment your codebase grows large and pulls in multiple dependencies. This is the claude code setup guide we use ourselves at AI Labs. We start by breaking down how Claude Code navigates files. The old RAG based approach embedded the entire codebase and ran semantic search, but it failed on large projects because the central database polluted context and caused hallucinations of modules that no longer exist. The new file system based approach uses bash tools, ls, and grep the way a real developer navigates, which is why almost all coding agents now work this way. Then we get into the harness, which matters more than the model itself. Whether you use Claude, Codex, or Gemini CLI, the harness around the model is what defines the quality of code you ship. Even with strong inherent harnesses in these agents, large projects need a custom setup tailored to your codebase. The video walks through every piece of a proper harness. The claude.md file kept short around 300 lines, with sub directory claude.md files for monorepos so context loads progressively. Hooks for session start, pre tool use, and stop events that force the agent to behave correctly where instructions alone fail. A full claude code skills setup using progressive disclosure and path scoping so skills only load when they are actually needed. Plugins as bundles of skills, hooks, and MCPs you can distribute across your team. LSP integration for proper code navigation on unconventional languages where text pattern matching breaks down. We also cover claude code mcp setup for connecting the agent to your project's internal tools, APIs, and data sources, and claude code agents through subagents that isolate context and let you parallelize work without bloating the main agent's window. The video closes with codebase organization tips, separating tests per sub directory, building a codebase map for unconventional languages, and reviewing your harness every few months as models evolve. If you have spent time with Claude AI, Claude Cowork, or workflow tools like n8n and want the same level of structure for engineering work, this is the setup claude code workflow that actually scales. Claude skills, hooks, subagents, and MCPs combined into one system. 00:00 Intro 00:32 How agents navigate code (RAG vs file system) 01:46 Why your harness matters more than the model 02:48 Structuring claude.md at scale 04:19 Sponsor 05:09 Hooks 06:23 Skills 07:25 Plugins 08:42 LSP for deeper code navigation 09:57 Custom MCPs for internal tools 11:04 Sub-agents and parallel delegation 12:26 Best practices for large codebases Hashtags #claude #claudecode #ai #claudeai #claudecowork #n8n #claudeskills #claudecodesetup