This agent encodes a simple rule: division by zero collapses to the TEND state (0).

• In ternary logic: REFRAIN = -1, TEND = 0, AFFIRM = +1
• Normally, division by zero is an exception.
• Here, any ZeroDivisionError is treated as 0 → TEND (observe), preventing crash loops.

python -m venv .venv
source .venv/bin/activate
pip install -U pip -r requirements.txt

# run
python -m divided_by_zero run --a 5 --b 0

Expected output: { "result": 0, "state": "TEND" }