Anatomy of an AI Agent: Diagram explains universal architecture from perception to execution
blaizedsouza · x · 2026-08-20
This post maps out the universal anatomy of almost every AI Agent:
- Perception Layer: Input reception (text, APIs, sensors)
- Reasoning Engine: LLM for thinking, planning, and deciding
- Planning Module: Breaks goals into actionable steps
- Tool Execution / Action Layer: Actual work execution (APIs, code, databases)
- Memory System: Short-term context + long-term knowledge
- Guardrails & Safety: Permissions, rate limits, human-in-the-loop
- Observability Layer: Traces, logs, metrics, cost & latency monitoring
It emphasizes that production complexity goes far beyond just RAG.
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