| What it does | The review app for code your agent writes
| 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 | FR
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| Pricing model | Freemium
| Open source
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| Pricing | Free: Local agent review, sessions, parallel worktrees, diff review with comments, local Git workflows. Pro: $9/month or $79/year (save 27%). Pro adds pull request dock, GitHub review comments, merge, and notifications. 14-day free trial.
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| Key features | - Native Rust GPU-accelerated desktop application
- Agent sessions with Claude Code, Codex, Gemini, and ACP-registry agents
- Parallel agent sessions in isolated Git worktrees
- Inline review comments sent back to the agent
- Real-time diff editor with inline and split views
- Hunk-level staging, editing, and restore in the diff
- Interactive rebase and conflict resolution
- GitHub pull request review, checks, and merge in Reviu Pro
- Built-in terminal
- Keyboard-first command palette
| - 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 | - Review agent code before it commits with inline comments sent back to the agent
- Fully native desktop app built with Rust and GPU acceleration, not Electron
- Agents run locally as processes on your machine with your existing subscription
- All local agent review and Git features remain free while Pro adds GitHub integration
- Parallel worktrees allow multiple agents to work simultaneously without interference
| - 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) | 9 ● no change since last check | 16 ● no change since last check |
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| Trust Flow (Majestic) | 6 | 0 |
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| Citation Flow (Majestic) | 25 | 20 |
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| Referring domains (Majestic) | 35 | 11 |
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Reviu
Harness Kit