💻 Exercise: Exercise: Select a reasoning strategy

📝 Instructions

Write select_strategy(meta), where meta is a dict, returning one of 'react', 'reflection', 'tot', 'direct'. Rules, in order: if meta['needs_tools'] -> 'react'; elif meta['verifiable'] and meta['difficulty'] == 'hard' -> 'reflection'; elif meta['open_ended'] or meta['branching'] -> 'tot'; else 'direct'. Missing keys are falsy. Standard library only.

🧪 Initial Code / Tests 1 Files

📄 evaluate.py

from unittest import TestCase
from exercise import select_strategy


class Evaluate(TestCase):
    def test_tools_means_react(self):
        self.assertEqual(select_strategy({'needs_tools': True}), 'react')

    def test_hard_verifiable_means_reflection(self):
        self.assertEqual(select_strategy({'verifiable': True, 'difficulty': 'hard'}), 'reflection')

    def test_open_ended_means_tot(self):
        self.assertEqual(select_strategy({'open_ended': True}), 'tot')

    def test_default_is_direct(self):
        self.assertEqual(select_strategy({}), 'direct')

✅ Solutions 1 Files

📄 exercise.py

def select_strategy(meta):
    if meta.get('needs_tools'):
        return 'react'
    if meta.get('verifiable') and meta.get('difficulty') == 'hard':
        return 'reflection'
    if meta.get('open_ended') or meta.get('branching'):
        return 'tot'
    return 'direct'