For AI agents: the complete documentation index is available at https://mfeflow.github.io/mfeflow/llms.txt, the full documentation bundle is available at https://mfeflow.github.io/mfeflow/llms-full.txt, and this page is available as Markdown at https://mfeflow.github.io/mfeflow/errors/E201.md.
mfeflow

    MFEFLOW_E201

    Feature not found.

    Fix

    List what is available with mfeflow features, or check the spelling.