What if unix style pipes included a MIME type. Thus you might have some type safety, or ability to understand multiple types of input. Example: if one tool ou

What if unix style pipes included a MIME type. Thus you might have some type safety, or ability to understand multiple types of input. Example: if one tool outputs JSON, another tool, like grep, would recognize that is a subtype TEXT, and be able to process it. Example: a more sophisticated hypothetical grep tool, would recognize that it might grep JSON differently than it greps TEXT. Example: Tool 1 exporting JPEG might be incompatible with Tool 2 that only accepts JSON. A nice shell error message could result.