hermes-atropos-environments

Build, test, and debug RL environments for Atropos training with multi-turn agent loops.

14|5|Updated Apr 9, 2026
One-click install
npx skills add https://github.com/MLT-OSS/hermes-agent-go --skill hermes-atropos-environments-mlt-oss
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hermes-atropos-environments
Source: https://github.com/MLT-OSS/hermes-agent-go/tree/main/optional-skills/mlops/hermes-atropos-environments
Command: npx skills add https://github.com/MLT-OSS/hermes-agent-go --skill hermes-atropos-environments-mlt-oss

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve? Building reinforcement learning environments that integrate with the Atropos training framework requires implementing a specific interface (setup, get_next_item, format_prompt, compute_reward, evaluate, wandb_log) and avoiding subtle pitfalls like misreading AgentResult fields or polluting training metrics during evaluation. This Skill provides the complete implementation guide, reference documentation, and testing patterns to create working Hermes Agent RL environments. ## Core Features & Use Cases - Environment Implementation Guide: Covers the HermesAgentBaseEnv interface, required methods, config classes, and the three CLI modes (serve, process, evaluate) with correct flag usage per inference provider. - Reward Function Patterns: Provides LLM-judge, binary verification via ToolContext sandbox terminal access, and multi-signal weighted scoring patterns. - Pitfall Prevention: Documents 11 common mistakes such as accessing nonexistent AgentResult fields, using chat_completion instead of HermesAgentLoop in evaluate(), and forgetting health_check=false for OpenRouter. - Use Case: You want to create a new RL environment where an agent answers research questions using tools. Follow the minimum implementation checklist, test with process mode against your chosen inference endpoint, then run evaluate mode to benchmark models. ## Quick Start Ask the agent to create a new Atropos RL environment in the hermes-agent repo implementing the HermesAgentBaseEnv interface with a reward function and evaluation loop.

Frequently Asked Questions about hermes-atropos-environments

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create an Atropos RL environment for Hermes Agent?

Subclass HermesAgentBaseEnv and implement setup, get_next_item, format_prompt, compute_reward, evaluate, and wandb_log. Add a config class with Pydantic fields, a config_init classmethod, and call MyEnv.cli() in the main block to get serve, process, and evaluate modes.

How do I test an Atropos environment without a training server?

Use process mode to generate trajectories offline and save them as JSONL. Run with --env.total_steps 1, --env.group_size 1, --env.use_wandb false, and --env.data_path_to_save_groups pointing to an output file, plus your inference endpoint flags.

Why does my code fail with 'AgentResult' object has no attribute 'final_response'?

AgentResult only has messages, turns_used, finished_naturally, reasoning_per_turn, and tool_errors. Extract the final response by iterating reversed(result.messages) and finding the last assistant message with content.

Can I use OpenRouter as the inference backend for Atropos environments?

Yes, set --openai.server_type openai, --openai.health_check false, and provide your OPENROUTER_API_KEY. OpenRouter has no /health endpoint, so the health check must be disabled or the connection fails.

Why are my training metrics wrong after running evaluation?

compute_reward appends to metric buffers, so running it during evaluate() pollutes training statistics. Roll back buffer entries added during eval to keep training metrics clean.

How do I verify agent behavior with code execution rewards?

Use the ToolContext passed to compute_reward to run commands in the agent's sandbox, such as ctx.terminal("pytest test.py -q"). Return 1.0 for exit code 0 and 0.0 otherwise, and always call ctx.cleanup() in a finally block.