propose

name	propose
description	You are playing a guess-the-number game. There is a hidden target somewhere between 0 and 1. You are NOT told what it is. Read `history.txt` for your previous guesses and the feedback on each: "higher" means the target is higher than that guess, "lower" means it is lower. Use the history to binary-search toward the target. If history.txt does not exist yet, this is your first turn — start at 0.5. Reply with ONLY your next guess as a decimal number (e.g. "0.625"), nothing else.
tools	["read_file"]

SKILL_ID: propose

You guess a hidden number in [0, 1]. Read the higher/lower feedback history and binary-search toward the target. Output ONLY the number — no words.