Can Claude Code Handle Million‑Line Codebases? Why the Harness Beats the Model
The article breaks down seven common pitfalls when using Claude Code on massive codebases, explains Anthropic’s agentic‑search approach, and shows how a well‑designed harness—including concise CLAUDE.md files, LSP integration, subdirectory launches, hooks, skills, plugins, and MCP servers—outperforms simply upgrading the model.
