Perhaps the most vital dev tools for our hypothethetical string-centric hardware would be those for converting from a human-legible form (stick to text status-quo since this hardware is string-centric, caveat) to what each of our coprocessors can reasonable be expected to understand!
And back! Though I'd minimize the need for that by shipping updates as source code where I can.
Also tools to run these programs, providing an intuition over their behaviour.
