| What it does | A desktop IDE for building software with AI agents, built for professional developers and AI engineers
| A harness-agnostic framework for AI coding tools
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| Stage | Not given
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| Founded | Not given
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| Based in | SE
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| Pricing model | Freemium
| Open source
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| Pricing | Free tier with 3 workspaces and 5 projects each, 1 profile for credentials, 7-day dashboard history. Pro at €20/month with unlimited workspaces and projects, one server install, and ticket support. Team at €50/month with unlimited server installs and real-time collaboration for up to 50 seats. Enter
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| Key features | - Multi-provider model support with per-thread, per-agent, and per-turn switching
- Visual context editing with ability to remove messages, tool calls, or files
- Per-turn token count, cost, latency, and cache-hit telemetry
- User-editable agents, skills, hooks, and system prompts at global, workspace, and project scope
- Four execution modes with AST-parsed shell commands and sensitive-path blocking
- Local code index with symbol and reference navigation
- Parallel threads and worker threads in one view with thread forking
- Built-in browser with page annotation for agents
- Full custom grid layout for multiple agents
| - 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 | - Purpose-built agentic IDE from scratch rather than a fork or wrapper
- Complete transparency and control over agent execution with editable context
- Local-first architecture where code and prompts never pass through Voidleap servers
- Professional-grade observability with 30+ charts for cost, tokens, latency, and cache tracking
- Seamless multi-provider mixing allowing provider swaps mid-thread within one task
| - 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) | 4 ● no change since last check | 16 ● no change since last check |
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| Trust Flow (Majestic) | 9 | 0 |
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| Citation Flow (Majestic) | 26 | 20 |
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| Referring domains (Majestic) | 53 | 11 |
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Voidleap Code
Harness Kit