> ## Documentation Index
> Fetch the complete documentation index at: https://docs.brik64.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Polymers

> BRIK64 composed logic units.

A Polymer is a composed unit of BRIK64 logic. It is created after one or more PCD candidates exist and can be inspected.

PCD and Polymer are different:

| Artifact           | Meaning                                                          |
| ------------------ | ---------------------------------------------------------------- |
| PCD                | One circuit blueprint.                                           |
| Polymer            | A composed unit with dependencies.                               |
| Application/System | A larger topology built from Polymers and integration artifacts. |

## When To Create A Polymer

Create or refresh a Polymer when:

* a PCD candidate is ready for composition;
* dependencies changed;
* an agent needs a single composed artifact for review;
* a release workflow needs a clear composition unit.

## Local Command Boundary

`brik64 polymerize` is not included in the public beta command surface unless `brik64 help` lists it in the installed package.

## Review Checklist

* Which PCDs feed the Polymer?
* Which monomers appear in the dependency chain?
* Which external boundaries remain?
* Which command or reviewed authoring step produced the Polymer?
* Which local evidence supports the current version?

If a dependency changes, treat the Polymer as stale until it is refreshed and reviewed.