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/E304.md.
mfeflow

    MFEFLOW_E304

    A bundle is over its budget.

    Fix

    Cut what the app ships on first load, or raise the budget in mfeflow.json ("budget") or mfeflow.app.json ("budgets") on purpose.