---
slug: core-concepts/fragment-symlinks
−section: Core Concepts
−order: 8
+section: Understanding Usable
+order: 9
status: published
description: "How read-only symlinks share maintained fragments across workspace boundaries."
---
··· 79 unchanged lines ···
- [Workspaces](/usable/core-concepts/workspaces) define the boundaries a symlink crosses.
- [Memory fragments](/usable/core-concepts/memory-fragments) explains the source knowledge being linked.
- [Tags and summaries](/usable/core-concepts/tags-and-summaries) are especially important for automatic rules and cross-context clarity.
- [Collections](/usable/core-concepts/collections) group fragments within one workspace; they do not share content across workspaces.