| What it does | Review and pivot your AI coding agent in one place
| A harness-agnostic framework for AI coding tools
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| Pricing model | Free
| Open source
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| Pricing | Free plan with 900 free credits for new users. Contact for more usage credits or Founders plan details.
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| Key features | - Session reviews with agent summaries, decisions, checks, blockers and file diffs
- Project graph showing files, symbols and subsystems in one connected view
- Change review with recorded updates and before-and-after details
- Session context keeping goal, work and outcome connected
- File browser with mapped folders and file details
- Queued tasks scoped by type and source
- Implementation estimates with evidence range and confidence
- MCP integration with Claude Code and Codex
| - 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 | - Decision trail keeps context in one place instead of scattered in chat scrollback
- Review agent changes and make notes without retyping recaps
- Connected project graph shows how work fits together
- Session recovery brings all context to the next session
| - 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) | Not checked yet ● no change 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) | 13 | 20 |
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| Referring domains (Majestic) | 18 | 11 |
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Harness Kit