As AI generates code at unprecedented speeds, the 'why' behind decisions gets lost, changes become risky, and collaboration breaks down. Without a proper memory system, teams build on foundations they increasingly don't understand.
Important decisions are scattered across chat logs, PRs, and engineers' minds—most teams lose up to 85% of architectural context when relying on tribal knowledge.
Traditional docs can't keep pace with AI-accelerated development, quickly becoming outdated and leaving teams without reliable records of why decisions were made.
Engineers merge AI-generated code without understanding system-wide impact, moving from hoping changes work to costly production incidents that could have been prevented.
Arc creates a living memory system that grows with your codebase—preserving the story behind every decision and showing exactly how changes will affect your system before you commit—turning hope into certainty in the era of AI-accelerated development.
Starting with code review, Arc's memory system shows you:
The complete history and reasoning behind the existing code
How your changes will affect the entire system
Verification that everything will work as expected
Arc highlights potential issues before they reach production, keeping your system reliable even as development accelerates.