The Full Brain Architecture
Combine all memory methods into a coherent system. Short-term, medium-term, long-term. You've built a brain.
You now have four distinct memory systems at your disposal. Each serves a different purpose. The final step is combining them into a coherent architecture — a layered memory system that mirrors how effective recall actually works.
Layer 1: Context Window (Short-Term). This is the current conversation. Everything said in this session lives here. Fast, immediate, but ephemeral. When the session ends, this layer is wiped. No configuration needed — it's how LLMs work by default.
Layer 2: Mem0 (Medium-Term). Automatically captured conversational context. Decisions made in passing, one-off preferences, project-specific facts mentioned during work. Retrieved automatically based on conversation relevance. Not curated, but comprehensive. Think of it as your notepad — everything gets jotted down, reviewed later.
Layer 3: Structured Folders (Long-Term Curated). Deliberately organized knowledge. Project context, technical preferences, reference material, decision logs. Manually maintained (by you or your agent at session end). Curated for accuracy and relevance. This is your filing cabinet — everything in its place, regularly pruned.
Layer 4: SQLite (Long-Term Structured). Dense, queryable data. Customer records, API catalogs, content inventories, metrics. Queried on demand via natural language SQL. This is your database — structured information that would be unwieldy in markdown.
The system prompt instruction that ties it all together: "Use the context window for current conversation. When you need to recall past context, search Mem0 first for conversational history, then memory folders for curated knowledge, then SQLite for structured data. At session end, curate important new information into the appropriate memory folder."
This layered approach means your agent always knows where to look. Quick recall? Mem0 and context. Detailed project context? Structured folders. Specific records? SQLite. And the context window handles everything happening right now. You've essentially built a brain with short-term, medium-term, and long-term memory — each optimized for its purpose.
Walkthrough
- 1Map your current memory systems: which of the four layers do you have configured?
- 2Ensure all layers are active: context window (automatic), Mem0 (plugin), structured folders (memory/ directory), SQLite (enabled in config)
- 3Update your agents.md with the layered search instruction: check Mem0 first, then folders, then SQLite
- 4Add session-end instructions: 'At session end, curate important new information into the appropriate memory folder. Update SQLite for any new structured data.'
- 5Run a test session that exercises all four layers: have a conversation (context), recall a past decision (Mem0), look up project details (folders), query a record (SQLite)
- 6Verify each layer returns appropriate results for its type of query
- 7Document your brain architecture: create
memory/architecture.mddescribing your four-layer setup
Checkpoint
All four memory layers are configured and working together. Your agents.md includes layered search instructions. You can demonstrate each layer handling its appropriate type of recall.