Sandbox
213 repos for r · HarnessesClear
wintermeyer/
heinzel

A ruleset that turns AI coding assistants (e.g. Claude Code) into disciplined Linux, FreeBSD & macOS sysadmins. Manages servers via SSH and localhost with safety guardrails, checklists, and team support. Named after the Heinzelmännchen — helpful kobolds who do the housework while you sleep.

91
ModelEngine-Group/
nexent

Nexent is a zero-code platform for auto-generating production-grade AI agents using Harness Engineering principles — unified tools, skills, memory, and orchestration with built-in constraints, feedback loops, and control planes.

5.9k
mturac/
everything-openai-codex

EOC: open-source operating system for OpenAI Codex workflows with agents, skills, hooks, rules, memory, safety gates, and cross-harness adapters.

90
madarco/
agentbox

Run multiple agents in parallel sandboxed VMs, with a single command, on your PC or in the cloud

390

Open-source self-improving QA agent for software teams. A test harness with memory. Write tests in natural language for web and mobile. agent-qa learns from every run, adapts to UI changes, and catches regressions before you ship.

909

Open-source autoresearch powered by autonomous coding agents. Run Claude Code, OpenCode, and Codex with grading, shared knowledge, and multi-agent evolution. Accepted at COLM 2026.

972
JasonxzWen/
harness-hub

Repository-first deterministic migration and atomic Skill source for Claude Code and Codex.

72
FrancyJGLisboa/
agent-skills-platform

Build tested agent skills and govern their lifecycle through a user-defined marketplace: evidence, discovery, updates, rollback, quarantine, and 17-platform distribution.

2.4k
Q00/ouroborosHarnesses

Agent OS: the agent gets smarter on its own. We just hold the line: Interview-gated, staged evaluation, budgeted evolution loop. MCP server, 14 runtimes: Claude Code, Codex CLI, Gemini CLI, OpenCode, Copilot, Kiro and more.

5.8k

SAW — SAFe Agentic Workflow AI Agent Harness for Multi-Agent Team Workflows Built on SAFe methodology (Scaled Agile Framework), adapted for AI agent teams (Now With AI-DLC!) Works for any team with repeatable processes: Software, Marketing, Research, Legal, Operations.

407
FerroxLabs/
ijfw

IJFW — It Just F*cking Works. Ferrox Labs' local-first infrastructure for AI coding agents: shared memory, smart routing, multi-AI cross-audits, disciplined workflow.

210
Hainrixz/
claude-banana

AI agent that turns your rough ideas into perfect image generation prompts. 7-component formula, 70+ creative techniques, 9 domain modes.

96
hassancs91/
claude-faceless-shorts-creator

A faceless YouTube-Shorts factory driven by Claude Code: pure-TSX Remotion visuals, ElevenLabs voice with word-exact captions, library-first sound design. 12 complete example shorts included.

230

Agor - team command center for all things agentic

1.4k
avibebuilder/
claude-prime

You've heard Claude Code can do amazing things. Skills, hooks, agents, memory systems — but who has time to figure all that out? Claude Prime sets it up for you in one command.

120

Professional context and harness engineering for Claude Code and OpenAI Codex. Build production-grade software with spec-driven development, TDD, persistent memory, quality gates, code intelligence, human oversight, and end-to-end verification.

2.1k

Comprehensive sets of standards and practices designed to elevate the capabilities of AI coding agents.

156
AlekseiUL/
agentforge-openclaw

Create production-ready skills and agents for OpenClaw. 4-level memory, auto-improvement, 22 battle-tested pitfalls.

43
aisa-group/
skill-inject

Skill-Inject: Measuring Agent Vulnerability to Skill File Attacks

96
deepklarity/
harness-kit

A kit for building with AI agents and also the engineering patterns around it.

97
CodelyTV/
agent-harness

Our agent harness: Skills, plugins, hooks, and utilities to improve the quality of your agent.

261