| What it does | Run your AI coding agents side by side
| A harness-agnostic framework for AI coding tools
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| Based in | GB
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| Pricing model | Freemium
| Open source
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| Pricing | Free: up to 3 sessions, unlimited projects, Claude Code, Codex CLI, Gemini CLI, OpenCode, Muse Code and custom commands, draggable panes, git worktrees, in-app browser, notifications. Pro: £10/month or £96/year (save £20%), includes everything in Free plus unlimited sessions, Herd HQ, voice dictatio
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| Key features | - Run multiple CLI agents in parallel panes side by side
- Git worktree support with automatic branch management per agent
- Keyboard-first interface with customizable layouts
- Voice dictation transcribed on your Mac
- Page annotation and attachment to prompts
- iOS Simulator integration
- Automatic layout and session restoration on relaunch
| - Configure plugins, skills, MCP servers, and hooks in a single harness.yaml file
- Observatory: monitor every session, tool call, and minute of activity
- Memory: persistent knowledge graph for AI orientation
- Comparator: run prompts across Claude Code, Cursor, and Copilot side by side
- Import existing configs from multiple AI coding tools automatically
- Share complete setup via single file with teammates
- Harness Parity: verify all connected AI tools end up with identical configuration
- Cross-harness compatibility table showing actual tool capabilities
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| What makes it different | - Bring your own subscriptions with no API keys or credentials stored
- No accounts, no telemetry, no cloud required
- Works offline for 7 days after last licence check
- One Pro licence works on up to 3 Macs simultaneously
| - Import-first approach: reads existing configs from all your tools and converges them before you write YAML
- No marketing gloss: capability table generated at build time from actual adapter code, not hand-maintained
- Portable across tools: single harness.yaml travels with you to every machine and tool
- Open source and free: no cost beyond existing Claude subscription
- Based on open specification: Harness Protocol is vendor-neutral and JSON Schema validated
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▲ +1 (up) since last check | 16 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 20 |
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| Referring domains (Majestic) | 0 | 11 |
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CodeHerd
Harness Kit