Agents are like Memento: your system prompt is their tattoo, most context never reaches them

brandon_galang · x · 2026-11-07

A vivid analogy comparing AI agents to the protagonist of Memento: he can't form new memories and relies on notes and tattoos; likewise an agent gets only a system prompt (the tattoos), some tools, and whatever context you left behind. The key insight: things feel obvious to you because of context in your head that you never gave the agent — design prompts and workflows accordingly.

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