Open source alternatives to gan-style-harness
24 open source AI Skills apps to use instead, best rated first.
Top picks
- G

github-ops
Launchgithub-ops is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It manages a GitHub repository with a focus on community health, CI reliability and the experience of contributors. It covers triaging issues by classify
Open source
- O

opensource-pipeline
Launchopensource-pipeline is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It prepares a private project for safe public release through a three-stage pipeline. The fork stage strips secrets from a copy. The sanitise st
Open source
- A

andrej-karpathy-skills
Launchandrej-karpathy-skills is a single CLAUDE.md file from the multica-ai project that is meant to improve how Claude Code behaves on coding tasks. It is derived from Andrej Karpathy's public observations about LLM coding pitfalls. The file dis
Open source
- M

microsoft/markitdown
Launchmarkitdown-mcp is the MCP server package for MarkItDown, Microsoft's tool for converting many file formats to Markdown for language models. It is a lightweight server that runs over stdio, Streamable HTTP or SSE, and exposes one tool, conve
Open source
- O

od-contribute
Launchod-contribute is an agent skill in the OpenDesign project that provides a guided, one-click contribution flow to the OpenDesign repository, written so that people without a coding background can send a real pull request. It is locked to the
Open source
- G

github-deep-research
Launchgithub-deep-research is an agent skill from the DeerFlow project that researches a single GitHub repository in several rounds and writes a report in Markdown. It is for requests that need more than a README summary, such as a comprehensive
Open source
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modelcontextprotocol/server-memory
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netdata/netdata#Netdata
Discovery, exploration, reporting and root cause analysis over Netdata metrics

Learn Claude Code
by shareAI-lab - A really interesting analysis of how coding agents like Claude
About gan-style-harness

gan-style-harness
GAN-inspired Generator-Evaluator agent harness
gan-style-harness is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It sets up a multi-agent harness in which one agent generates work and a separate evaluator, instructed to be strict, critiques it, and the critique drives the next round. The idea follows the Generator and Evaluator pattern of GANs and is based on Anthropic's March 2026 write-up on harness design for long-running application development. The stated reason is that a single agent asked to judge its own work tends to praise it, while a separate evaluator is easier to make rigorous. The skill suits building a complete application from a one-line prompt, frontend work where visual quality matters, full-stack projects that need working features rather than just code, and any task where generic AI-looking output is unacceptable. The listing notes that such a run may cost $50 to $200 to produce production-quality output. A skill is a SKILL.md file of instructions that an AI agent loads when a task calls for it. It is free and open source, and the skills.sh listing shows all three security audits passing.
- Price
- Free
- Made by
- affaan-m
- Category
- AI Skills
- Website
- github.com/affaan-m/ecc/gan-style-harness











