Retrace is an AI agent that remembers how your team actually solved dependency upgrade problems — not just what the fix was, but every path that failed along the way. Most coding agents hallucinate on library upgrades because they only know general training data, not your codebase's real history. When your app has gone from v1 to v10 over several years, the context behind each past upgrade — the failed attempts, the coupled dependencies, the specific reasoning — gets lost in closed PRs and forgotten Slack threads. Retrace fixes this by treating each upgrade as an episodic memory: every attempt (successful or failed), every error message, and every dependency that had to move together gets stored in MongoDB Atlas. When a developer hits a new upgrade error, the agent searches this history semantically, retrieves the full story — not just the final fix — and explains it with the reasoning intact. For example: upgrading Tailwind alone breaks Shadcn's color system. Downgrading Shadcn alone doesn't fix it either. Only upgrading both together works. Retrace remembers that coupling, so the next developer doesn't have to rediscover it from scratch.
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