Meta-Harness: skill pack for Hermes Agent

Skill that guides a blank agent through SOUL.md, layered memory, skill design and self-evolution

What Meta-Harness does

Meta-Harness applies the harness idea, standardized pipelines that improve with each use, to the agent itself rather than to a product pipeline. The README describes six subsystems: a SOUL.md persona with core principles, a skill system with three-layer separation and on-demand loading, self-evolution mechanisms (extraction triggers, an automation reflex, MAPS self-checks, write-back of methods and an anti-sycophancy alert), three-level memory from long to short term, state tracking in a tracker.md, and engineering ethics and intellectual standards.

After loading the skill, you ask the agent to help build the self-evolving architecture, and it starts from a SOUL.md template. A four-phase roadmap runs from foundation in weeks 1 to 2 through accumulation, evolution and maturity from week 9. The repository includes guides on SOUL design, skill design principles with a 14-item checklist, self-evolution, layered memory and a lessons catalog. The README is bilingual in Chinese and English, says Hermes Agent is the environment where the skill was developed and verified, and uses the MIT license.

Key features

SOUL.md persona design guide and a complete template
Three-layer skill design with a 14-item checklist
Self-evolution mechanisms such as extraction triggers and MAPS self-checks
Layered memory (L1 long term, L2 medium term, L3 short term) and state tracking
Four-phase adoption roadmap

When to use it

Setting up the foundations of a freshly deployed Hermes agent
Writing a SOUL.md that defines principles and hard rules for an agent
Structuring skills so that diagnosed failures become reusable procedures

Who it is for: Hermes Agent users, and users of other skill-compatible agents, who want a structured approach to persona, skills and memory.

How it fits with Hermes Agent

Marked as natively supported on Hermes Agent, which the README names as the environment where the skill was developed and verified.

How to install Meta-Harness

These commands are copied from the project's README. Check the repository for the latest steps before you run them.

git clone https://github.com/Jaeger9961/meta-harness.git ~/.hermes/skills/meta-harness

FAQ

What is Meta-Harness?

Meta-Harness is an installable skill, not a blog post, that walks an agent through building a SOUL.md persona, a reusable skill system, layered memory and a self-evolution routine.

Does Meta-Harness work with Hermes Agent?

Yes. The README marks Hermes Agent as natively supported. OpenClaw is listed as compatible, and Claude Code can load it as custom instructions by injecting the SKILL.md content manually.

How do I install Meta-Harness?

Clone the repository into your Hermes skills directory with git clone https://github.com/Jaeger9961/meta-harness.git ~/.hermes/skills/meta-harness. Then ask the agent to load the meta-harness skill.