# Primitives (/web/primitives)



The legacy `/primitives` route still exists in the app, but it now forwards to
the current agent-library surfaces.

It resolves to one of these destinations:

* `/agents/skills` by default
* `/agents/rules` when the old link asked for the rules tab
* `/agents/context` when the old link asked for the context tab

Use those pages for the current product behavior.

## Current mapping [#current-mapping]

If you are cleaning up old bookmarks or internal references, this is the
redirect map the app uses today:

* `/primitives` -> skills
* `/primitives?tab=rules` -> rules
* `/primitives?tab=context` -> context

Unlike `/library`, this route does not forward to the models tab in Settings.

## Why the route still exists [#why-the-route-still-exists]

Older navigation used `/primitives` as an entrypoint into the reusable agent
building blocks.

Mogplex now exposes those pieces directly under [Agents](/web/agents), but the
redirect remains so existing links still land on a valid current surface.

## What the old Primitives concept became [#what-the-old-primitives-concept-became]

The older route now maps onto these current pages:

* [Skills, Rules, and Context](/web/agents/skills-rules-context) for the
  current explanation of how these surfaces split up
* [Library](/web/library) when you are untangling older links that also used
  the broader `/library` naming

## Rule of thumb [#rule-of-thumb]

If the old reference was about reusable behavior or shared knowledge, it now
belongs under [Agents](/web/agents), not under one standalone `/primitives`
surface.