groove utilities task config Outcome The current task backend configuration is shown to the user, or updated based on provided arguments. After update, user is prompted to run /groove utilities task install if the backend changed. Acceptance Criteria Current tasks.backend value is displayed with no arguments Backend is updated in .groove/index.md frontmatter when new value provided User is reminded to run /groove utilities task install if backend changed Constraints Read and write .groove/index.md frontmatter tasks.backend key only Valid values: beans , linear , github , none Reject unknown backend values with a helpful error listing valid options If .groove/index.md does not exist, create from skills/groove/templates/index.md with defaults Do not modify any other keys in .groove/index.md

groove-utilities-task-config