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zeroshot

Open-source meta-harness that enforces review gates and repair loops for coding agents.

the-open-engine/zeroshot

Maintained by The Open Engine

zeroshot is a meta-harness for coding agents: users define a workflow graph of coding, independent review and repair steps, and the engine enforces its review gates and retry limits in code rather than relying on prompts. Each agent in the graph can use its own model and harness, including Pi, Claude Code, Codex or Copilot. The MIT-licensed CLI runs locally or self-hosted via Docker, with a hosted Zeroshot Platform also offered. The maintainers report a small model in a zeroshot loop matching a larger model on 20 ProgramBench tasks at a median 58% of its cost.

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Connections

Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.

Maintained by · 1

  • The Open EngineOrganisation

Built on · 2

Sources

  1. GitHub repository
  2. zeroshot website
  3. The Open Engine blog: review loop