Agent Architecture: Identity, Memory, and Authority Should Be Separate Layers

crypt0c0ins · reddit · 2026-08-24

The post argues that many agent architectures mistakenly couple identity, memory, tools, and authority, causing conflicts as systems scale. The author advocates separating these into distinct layers:

Identity: Stable values, boundaries, and long-term goals; should change slower than working context.
Memory: Durable info with metadata (source, time, confidence). Not automatically an instruction or authoritative truth.
Current State: What is true now (active projects), distinct from historical memory.
Working Context: What deserves attention now, assembled from other layers, not a dump of all history.
Retrieval: Mechanism to promote dormant info to context. Good storage != good memory.
Model: The reasoning engine. Important, but need not be the agent itself.
Tools: Define capabilities. Changing tools changes capability, not necessarily identity.
Authority: What is permitted. Having a file tool doesn't mean permission to modify every file. Old instructions don't automatically outrank new ones.
Receipts/Provenance: Tracking what happened and why for inspectability.
Recovery: Handling continuity failures (model changes, truncations, contradictions).

Benefits of Decoupling: Swap models without destroying identity; revoke tools without rewriting self-model; preserve memory without treating it as current truth; retrieve info without granting it authority; constrain authority without reducing capability; and recover continuity after interruption.

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Agent Architecture: Identity, Memory, and Authority Should Be Separate Layers

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