Function cmd_context_task 

pub fn cmd_context_task(
    root: &Path,
    goal: &str,
    files: &[String],
    symbols: &[String],
    budget: Option<usize>,
    json: bool,
    hook: bool,
) -> Result<()>

scc context task <goal> [--budget N] [--json] [--hook] — the complete task focus. Text and JSON are TWO VIEWS OF ONE ARTIFACT built by build_task_context: JSON carries {pack, delta, delta_ids}, text prints pack content followed by the delta — identical derivation, no transport downgrades quality.