Agent Skills by PaulRBerg
A curated collection of agent skills for Claude Code and other AI coding agents.
AI ToolAI ProductivityWebFree
4.4Visit
AI Tool
OpenHarness
Open-source software and hardware for building with coding agents across software, design, circuits, data and video.
Day 43 since launch · Launched 25 August 2026
Made by Shushant LakhyaniKnow about Shushant Lakhyani hereGet all my visual guides hereSee what I can build for youAI+Tech+No-Code+Online Business Mini GuidesJoin the newsletter
Made by Shushant LakhyaniKnow about Shushant Lakhyani hereGet all my visual guides hereSee what I can build for youAI+Tech+No-Code+Online Business Mini GuidesJoin the newsletterBuilt with love by Shushant Lakhyani. Building bestproductivityresources.com
Screenshot or bookmark this page so you find it later, then share it with your network.
What is OpenHarness?
OpenHarness is an open-source platform for building with coding agents. You can use Claude Code, Codex and other agents to make software, design parts and circuit boards, explore data, and create videos — all with domain tools, live viewers and sessions that persist across every machine you own. It includes a desktop app and an optional Harness device for following your agent, answering questions and speaking new tasks from your desk. The app, firmware, schematics, PCB layouts and enclosure CAD files are all open source.
Pros
- Combines software and open-hardware into one agent-building platform
- Supports Claude Code, Codex and other coding agents in domain-specific harnesses
- Sessions persist across machines you own
- Firmware, schematics, PCB layouts and enclosure CAD are all open source
Cons
- Advanced setup; hardware angle needs compatible gear
- Still early and ambitious in scope
- Best suited for builders comfortable with agents and maker tools
Who should use OpenHarness
Developers, makers and teams who want coding agents to do real work across software, hardware, design and media in persistent, self-owned environments.
Who may not need it
Users looking for a simple plug-and-play chat assistant or pure SaaS tool without any setup.
OpenHarness alternatives
Similar resources to OpenHarness, picked from the directory.
AI-First Toolkit
Open-source Claude Code and Codex skills for AI-first work.
AI ToolAI ProductivityCross-PlatformFree
4.4Visit
Agent Rules Skill
Generate AGENTS.md files that follow the agents.md convention.
AI ToolAI ProductivityCross-PlatformFree
4.3Visit
Opendray
Self-hosted gateway for running AI coding agents on your own infrastructure.
AI ToolAI ProductivityWeb, Cross-PlatformFree
4.3Visit
Google Artemis
Natural-language instructions turned into reliable Android automation.
WebsiteAI ProductivityWebFree
4.8Visit
Agent Skills Workflow Template
A proven AGENTS.md workflow and skill collection for Claude Code, Cursor and Codex.
WebsiteAI ProductivityWeb, Cross-PlatformFree
4.7Visit
Free alternatives to OpenHarness
Free resources that cover similar ground.
Agentfiles
Browse, create, and edit AI agent files across Claude Code, Cursor, Codex and 12 coding tools — from Obsidian.
WebsiteAI ProductivityWeb, macOSFree
4.7Visit
Ego Lite
The fastest browser for AI agents to run browser automation without disturbing you.
WebsiteAI ProductivityWeb, macOSFree
4.7Visit
agtx
The blackboard for coding agents.
Desktop AppAI ProductivitymacOS, LinuxFree
4.5Visit
Genie
Wishes in, PRs out — a CLI agent that interviews you and ships code.
Desktop AppAI ProductivitymacOS, WindowsFree
4.4Visit
Harness Mix
A local kernel that connects many coding harnesses into one Codex Desktop native UI.
Desktop AppAI ProductivitymacOS, WindowsFree
4.2Visit
Builder.io Skills
A collection of agent skills from Builder.io for smarter AI-assisted development.
AI ToolAI ProductivityCross-PlatformFree
4.5Visit
Featured on Best Productivity Resources
Made OpenHarness? Add this free badge to your website or README. It links to this page.
<a href="https://bestproductivityresources.com/resources/openharness" target="_blank" rel="noopener"><img src="https://bestproductivityresources.com/badges/featured-light.svg" alt="Featured on Best Productivity Resources" width="250" height="54" /></a>