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Event Sourcing (Agent)

Reviewed 19 July 2026 Canonical definition Part of: AI Agent Fundamentals →

Event sourcing for AI agents stores every state change and action as an immutable, append-only sequence of events, rather than only the current state. This provides a complete audit trail of all agent decisions and actions, enables state reconstruction for forensics, and supports regulatory requirements for full transaction history.

§01 / QUESTIONSterm: Event Sourcing (Agent)
Questions

Common questions.

What is Event Sourcing (Agent)?

Event sourcing for AI agents stores every state change and action as an immutable, append-only sequence of events, rather than only the current state.

Why does Event Sourcing (Agent) matter for AI agents?

This provides a complete audit trail of all agent decisions and actions, enables state reconstruction for forensics, and supports regulatory requirements for full transaction history.

Which terms are related to Event Sourcing (Agent)?

Closely related concepts include MiFID II (AI Agents), Corrigibility, Task Agent, World Model. Each is defined in the Prefactor glossary.

§02 / RELATEDnext: where this fits
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Where this fits.

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