I Gave an AI Tutor a Memory That Survives Restarts — Here’s the Tiered Architecture (and Tested…

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Building a tiered, persistent memory system for an AI tutor agent — with importance scoring, decay, and fact consolidation — verified end-to-end, including a full pytest suite, before publication.

Estimated Reading Time: 17–20 minutes

Table of Contents #

• Introduction
• Problem Statement
• Background
• Core Concepts
• Technology Deep Dive
• Architecture
• Mini Project: MemoryTutor
• Implementation
• Code Walkthrough
• Testing
• Performance
• Limitations
• Best Practices
• Common Mistakes
• Production Considerations
• Future Improvements
• Conclusion
• Further Reading
• Official References

Introduction #

Think about the last time you called customer support about the same issue twice. The first agent understood…