research-grpo-rl-training

## Usage Instructions for Agents When this skill is loaded: 1. **Read this entire file** before implementing GRPO training 2. **Start with the simplest reward function** (e.g., length-based) to validate setup 3. **Use the templates** in `templates/` directory as starting points 4. **Reference examples** in `examples/` for task-specific implementations 5. **Follow the workflow** sequentially (don't skip steps) 6. **Debug incrementally** - add one reward function at a time **Critical Reminders:** - Always use multiple reward functions (3-5 is optimal) - Monitor reward metrics, not loss - Test reward functions before training - Start small (num_generations=4), scale up gradually - Save checkpoints frequently (every 100 steps) This skill is designed for **expert-level implementation**. Beginners should start with supervised fine-tuning before attempting GRPO.