Typed JQ JQ is a successful tool for json manipulation. $ jq -nc '[1, 2, 3] | map(select(. % 2 == 1))' > [1, 3] A major shortcoming of jq, often mentioned by practitioners, is its error messages and debugging capabilities. A jq program typically takes a large set of json inputs, transforms and processes these inputs through a set of filters(programs), and produces a set of resulting values. jq interpreter does not keep track of the dataflow through the program, resulting in local errors. Such lo...