Bonera is a rigging toolkit designed to speed up repetitive and tedious manual rigging workflows. Rather than functioning as an automated rigging system, it provides a suite of utility operators to assist with specific custom rigging tasks. Features include tools for generating stretch chains, one-click eyelid setups, and twist bones to prevent candy-wrapper deformations.

The toolkit also includes organizational aids like a pseudo bone layer system for temporary grouping and a pair list renamer for batch updating bones, vertex groups, and shape keys to match specific naming conventions. Additional operators allow for quick generation of bone chains from object hierarchies or curves, simplifying the process of rigging hard-surface models, ropes, and hair. Users can also quickly apply and manage custom bone shapes with thumbnail support.