Proof of concept for an interactive Taskwarrior hook. Hackish and potentially problematic, but it works.

on-add_interactivity.py

#!/usr/bin/env python
#
# PoC: Interactive on-add hook

import json
import sys

t = json.loads(sys.stdin.readline())

real_stdin = open("/dev/tty", "r")
real_stdout = open("/dev/tty", "w")

if "teh" in t['description']:
  real_stdout.write('You misspelled "the". Should I correct that for you? [Y/n] ')
  real_stdout.flush()
  i = real_stdin.readline().rstrip()
  if i == "y" or i == "Y" or i == "":
    t['description'] = t['description'].replace("teh", "the")

print(json.dumps(t))

interesting! Proof of concept, you say?!