Hermes Evolution Engine

What it is

The Evolution Engine is a self-evolving skill management system for Hermes Agent. Rather than treating skills as static files, it continuously tracks five health dimensions for each skill and surfaces improvement suggestions through Hermes's native /curator system.

The engine is part of the Ow1onp/hermes-agent-skills repository, which bundles 8 workflow skills and 2 domain agents (Python Pro, DevOps SRE) for Hermes. All skills follow the Agent Skills Open Standard and are validated by a bundled SkillValidator.

How it works

The Evolution Engine scores each skill across five dimensions:

1. Usage frequency — how often the skill is invoked
2. Success rate — how often it completes without errors
3. Corrections — how often the user has to correct the skill's output
4. Freshness — when the skill was last updated
5. Command validity — whether the skill's commands still work

Based on these scores, the engine generates improvement suggestions and feeds them to Hermes's /curator system, which can propose and execute updates to the skill's SKILL.md file.

The 8 workflow skills

Skill	Phase	Description
requirement-analyzer	Define	Structured multi-turn requirement extraction with cross-session persistent memory
spec-driven-dev	Define	Seven-section PRD before any code, with /skills pipeline chaining
test-driven-dev	Build	RED-GREEN-REFACTOR + test pyramid, with delegate_task parallel testing
debugger-coordinator	Verify	Multi-modal debugging (5-step method) with browser+terminal+vision coordination
code-quality-guardian	Verify	Six-axis quality gate with patch auto-fix + /curator tracking
cicd-orchestrator	Ship	GitHub Actions workflow generation with cronjob + webhook triggers
skill-curator	Evolve	Collect → Analyze → Propose → Execute cycle, direct /curator integration
persona-aware-coding	Evolve	SOUL.md-driven style adaptation using native Hermes identity system

Persona-aware coding

The persona-aware coding skill is particularly interesting. Drop a SOUL.md in your Hermes config and every code-generating skill adapts — naming conventions, comment style, architecture patterns. Your agent writes code that looks like you wrote it, not like a generic assistant wrote it.

Installation

# Recommended: tap the repository
hermes skills tap add Ow1onp/hermes-agent-skills
hermes skills browse
hermes skills install Ow1onp/hermes-agent-skills/skills/define/requirement-analyzer
hermes skills install Ow1onp/hermes-agent-skills/skills/agents/python-pro
hermes skills install Ow1onp/hermes-agent-skills/skills/agents/devops-sre

Hermes v2 beta

The repository also includes a Hermes v2 MVP with a task-first natural-language interface: say what you want, the system handles roles, skills, and constraints automatically. Three modes: Beginner (auto), Advanced (choose persona), Expert (pure v1). v1 remains unchanged and supported alongside v2.

When to use it

• Teams managing many skills that want automated health tracking and improvement suggestions
• Developers who want persona-consistent code from their agent across all skills
• Anyone using Hermes's /curator system who wants structured input for skill evolution