harnessgym

by patrick-toulme · MCP Server · ★ 32

About harnessgym

Iterative agent harness improvement: run a coding agent on a hard task, generate the reusable tooling it was missing, qualify it, and replay fresh sessions with it activated. Works with Codex and Claude Code.

agentsai-agentsbenchmarkingclaude-codecodexcoding-agentsdeveloper-toolsharnessllmmcp

Quick Facts

Stars32
Forks3
LanguagePython
CategoryMCP Server
LicenseApache-2.0
Quality Score53.4255964988788/100
Open Issues1
Last Updated2026-07-02
Created2026-05-26
Platformsclaude-code, codex, mcp, python
Est. Tokens~13k

Compatible Skills

These tools work well together with harnessgym for enhanced workflows:

  • ResearchHarness — semantic(0.26)+complementary+rare_topics+same_lang+similar_pop+shared_platform (63%)
  • cinsights — semantic(0.31)+complementary+same_lang+similar_pop+shared_platform (61%)
  • open-jet — semantic(0.29)+complementary+same_lang+similar_pop+shared_platform (60%)

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Frequently Asked Questions

What is harnessgym?

harnessgym is Iterative agent harness improvement: run a coding agent on a hard task, generate the reusable tooling it was missing, qualify it, and replay fresh sessions with it activated. Works with Codex and Clau. It is categorized as a MCP Server with 32 GitHub stars.

What programming language is harnessgym written in?

harnessgym is primarily written in Python. It covers topics such as agents, ai-agents, benchmarking.

How do I install or use harnessgym?

You can find installation instructions and usage details in the harnessgym GitHub repository at github.com/patrick-toulme/harnessgym. The project has 32 stars and 3 forks, indicating an active community.

What license does harnessgym use?

harnessgym is released under the Apache-2.0 license, making it free to use and modify according to the license terms.

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