Selection Flow
- Identify the operation in plain language.
- Search the Monomer Catalog.
- Prefer core monomers when they express the operation.
- Use extended monomers only when the behavior crosses into external or specialized domains.
- Record any external dependency before composing the PCD.
Numeric PCD Example
SDK-Level String Example
String helpers such as concat and length are available as SDK concepts, but are not direct PCD parser calls in the current public CLI beta. Keep them in SDK examples until the release notes list string PCD parser support.Agent Checklist
- The monomer exists in the catalog.
- The family matches the intended behavior.
- The PCD keeps control flow explicit.
- Extended behavior is recorded before composition.
- The final explanation names each monomer used.

