What problem does it solve? Reinforcement learning training loops are often ad-hoc, unbounded, and impossible to resume or debug after failures. This Skill generates RL training and evaluation code that is checkpointable, observable, and driven by accepted contracts, so runs can be resumed, monitored, and audited. ## Core Features & Use Cases - Checkpointable Training: Implements training loops that persist state so runs can be resumed after interruption. - Observable Pipelines: Adds logging and metrics instrumentation so training progress and evaluation results can be monitored. - Contract-Driven Implementation: Builds the training and evaluation path from accepted contracts, keeping behavior bounded and predictable. - Use Case: After defining environment and reward contracts for an RL experiment, use this Skill to generate a training loop with periodic checkpointing and metric emission, then resume the run from the last checkpoint after a crash. ## Quick Start Use $autorl-build-training to implement a bounded, checkpointable, observable RL training and evaluation path from my accepted contracts.