I run a 28,000-file codebase solo with four different AI agents.

Short summary

Large codebases need multiple AI agents, but without isolation they create chaos—conflicting changes, hallucinated variables, broken tests. The author segments four agents (UI, database, API, testing) with strict domain boundaries and permission constraints. This routing-table architecture prevents Git nightmares and multiplies solo productivity.

• •Isolate AI agents by domain (UI, database, API, testing) with strict read/write boundaries
• •Prevent conflicts by enforcing separation of concerns—UI agent can't touch backend code
• •4-agent pattern multiplies solo developer productivity without merge chaos

Generated with AI, which can make mistakes.