AI Time Estimator plugin estimates Claude Code task duration from your own logs

Noam Brand released AI Time Estimator, a Claude Code plugin that answers how long a task will take in working minutes measured on the user's machine. A read-only subagent counts operations such as file reads, edits and command runs, and estimate.py converts them into P10/P50/P90 ranges via Monte Carlo simulation using rates calibrated from local transcripts; a Stop hook scores each estimate and corrects the ranges after 10 scored tasks. On the author's 72 held-out requests, 71% of actual times fell inside P10–P90 against an 80% target, and everything runs locally with no network calls.