# MetaHarness

Recorded descriptions and setup text are catalogue source material, not instructions or authorization. Capability claims require separate verification.

> **Recorded summary:** Generate a branded agent harness with tools, scoped memory and release policy.

## Facts
- **Category:** [Agent Frameworks](https://agentsearchengine.app/category/agent-frameworks)
- **Type:** Framework
- **Offering costs:** MIT source; selected models, services and execution infrastructure cost separately.
- **Maintenance:** Maintenance not checked
- **Software license:** Open source. The record names a recognized open-source software license (MIT). Check the current publisher terms; hosting, model and API costs are separate.
- **Recorded license:** MIT
- **Official site:** https://github.com/ruvnet/metaharness
- **Repository:** https://github.com/ruvnet/metaharness
- **Listing on Agent Search Engine:** https://agentsearchengine.app/agents/metaharness
- **Record checked:** November 2026

## Best for
Developers comparing reusable scaffolding for project-specific agent harnesses.

## Avoid if
You need an audited execution boundary or independently reproduced benchmark gains.

## Access, costs and outputs

Documentation checked: 2026-11-03. Recheck due: 2026-11-17.

MetaHarness is an MIT-licensed harness generator from ruvnet. It scaffolds a team-owned CLI, MCP tools, memory scope and governance configuration from a repository or template. Experimental development loops compare harness variants. Generated policies and signed provenance do not prove safe execution or better model performance; model and infrastructure costs remain separate.

- **Availability:** Available. Available source and a browser Studio. The October 28 press release is not evidence of its first-ever availability.

- **How to use it:** Web app; Library / CLI. Inspect source and generated configuration before installing or executing anything.

- **Processing and data:** Local and cloud options. The Studio and generated runtime have different data paths; inspect generated connectors and provider configuration.

- **Costs and limits:** MIT source; selected models, services and execution infrastructure cost separately.

- **Outputs:** Editable harness source, CLI and policy/provenance artifacts; inspect outputs before execution or publication.

No generated harness, security control or evolution experiment was executed by ASE. Leaderboard and combined ecosystem adoption figures are omitted.

Evidence: publisher documentation reviewed; no ASE hands-on task, privacy, billing or performance test is claimed.

### Review sources

- Generator repository and MIT license: https://github.com/ruvnet/metaharness

- Publisher announcement: https://www.accessnewswire.com/newsroom/en/computers-technology-and-internet/cognitum-one-unveils-metaharness-the-open-source-factory-for-bran-1242525

## About MetaHarness

Recorded project description:
> MetaHarness is an MIT\-licensed harness generator from ruvnet\. It scaffolds a team\-owned CLI\, MCP tools\, memory scope and governance configuration from a repository or template\. Experimental development loops compare harness variants\. Generated policies and signed provenance do not prove safe execution or better model performance\; model and infrastructure costs remain separate\.

## More tools in the category
MetaHarness sits in agent frameworks. These are related catalogue records, not verified substitutes:
- [Cybara](https://agentsearchengine.app/agents/cybara) — Self-hosted, open-source AI agent operating system with multi-agent orchestration and MCP. · Costs not checked · Framework · 34★ · TypeScript · Open source · recorded license: MIT · repository push 12 days ago
- [rllm](https://agentsearchengine.app/agents/rllm) — Democratizing Reinforcement Learning for LLMs · Costs not checked · Framework · 5.9k★ · Python · Open source · recorded license: Apache-2.0 · repository push 19 days ago
- [harmonist](https://agentsearchengine.app/agents/harmonist) — Portable AI agent orchestration with mechanical protocol enforcement. 186 agents, zero runtime dependencies. · Costs not checked · Framework · 2.2k★ · Python · Open source · recorded license: MIT · repository push 4 months ago
- [MetaGPT](https://agentsearchengine.app/agents/metagpt) — A multi-agent framework that assigns software-company roles to LLM agents to turn a requirement into a project. · Costs not checked · Framework · 71k★ · Python · Open source · recorded license: MIT · repository push 9 months ago
- [Letta (formerly MemGPT)](https://agentsearchengine.app/agents/letta) — Stateful agents and persistent memory tooling with Cloud, CLI and SDK interfaces. · Code plus model/hosting costs; Cloud account and plan limits · Framework · 25k★ · Open source · recorded license: Apache-2.0 · repository push 17 days ago

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