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Agent memory architecture template

Short-term context, episodic and semantic long-term memory, and procedural memory — how agents remember across sessions. This architecture diagram template contains 12 labelled components.

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Components in this architecture diagram

  • User message
  • Agent
  • Short-term: conversation window
  • Summarise when window fills
  • Episodic memory: past sessions
  • Extract facts & preferences
  • Semantic memory: user profile & facts
  • Procedural memory: learned instructions
  • Recall relevant memories
  • Inject into prompt
  • LLM
  • Decay, dedupe & user-requested deletion

How to use this architecture diagram template

  1. Click Open in the editor. The architecture diagram opens on a new page in FlowDiagram — nothing is uploaded and there is no sign-up.
  2. Rename, add or delete shapes and drag them where you want; connectors stay attached as things move.
  3. Drop in vendor logos from the library — 1,160 of them, including every AWS, Azure and Google Cloud service icon — or restyle it with the colour and theme controls.
  4. Prefer text? Edit the Mermaid source below and paste it in through ☰ → Import diagram (see the Mermaid editor); it imports as an editable diagram.
  5. Export to PNG, SVG or PDF, or press Ctrl+L for a link that carries the whole diagram.

Mermaid source

The whole template is the text below. Paste it into FlowDiagram, keep it in Git next to the code it describes, or hand it to an AI assistant to extend.

flowchart LR
  U((User message)) --> AG[Agent]
  AG --> STM[Short-term: conversation window]
  STM --> SUMZ[Summarise when window fills]
  SUMZ --> EPI[(Episodic memory: past sessions)]
  AG --> EXTRACT[Extract facts & preferences]
  EXTRACT --> SEM[(Semantic memory: user profile & facts)]
  AG --> PROC[(Procedural memory: learned instructions)]
  AG --> RECALL[Recall relevant memories]
  RECALL --> EPI
  RECALL --> SEM
  RECALL --> PROC
  RECALL --> CTX[Inject into prompt]
  CTX --> LLM[LLM]
  LLM --> AG
  SEM --> FORGET[Decay, dedupe & user-requested deletion]

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