# Agent Memory Patterns

DevFeed: [Agent Memory Patterns](<https://devfeed.tech/articles/agent-memory-patterns-33490.md>)

Original publisher: [Read original article](<https://timkellogg.me/blog/2026/04/27/memory-patterns>)

Published: 2026-04-27T00:00:00Z

Content type: tutorial

Language: en

Sources: [Tim Kellogg](<https://devfeed.tech/sources/tim-kellogg.md>)

Topics: [systems](<https://devfeed.tech/topics/systems.md>), [file](<https://devfeed.tech/topics/file.md>), [data](<https://devfeed.tech/topics/data.md>), [structure](<https://devfeed.tech/topics/structure.md>), [Caching](<https://devfeed.tech/topics/caching.md>)

Tags: [agents](<https://devfeed.tech/tags/agents.md>), [blocks](<https://devfeed.tech/tags/blocks.md>), [files](<https://devfeed.tech/tags/files.md>), [guide](<https://devfeed.tech/tags/guide.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [memory](<https://devfeed.tech/tags/memory.md>), [patterns](<https://devfeed.tech/tags/patterns.md>), [skills](<https://devfeed.tech/tags/skills.md>)

## AI overview

This guide explains three common forms of mutable memory for agents: files, memory blocks, and skills. It describes how files can store data and knowledge, while memory blocks provide learnable prompt content for behavior, preferences, identity, and character.

## Source excerpt

A short HOW TO guide for agent memory systems. Especially the difference between blocks, files and skills.