| What it does | AI-Native Software Development Extension for VS Code that gives AI structured access to your entire codebase
| A harness-agnostic framework for AI coding tools
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| Stage | Not given
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| Founded | 2023
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| Based in | IN
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| Pricing model | Not given
| Open source
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| Pricing | Trial: $0 for solo developers with 20k CodeZero tool calls and 100 MB codebase capacity. Starter: $29/user/month with 7.5k tool calls/seat/month and 50 MB/seat capacity. Scale: $39/user/month (most popular) with 13k tool calls/seat/month, 100 MB/seat capacity, and cumulative usage. Enterprise: Custo
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| Key features | - Git Tree: unified workspace showing all connected repositories with branches, commits and history
- Code Graph: shows system connectivity across modules, files, data and dependencies
- Feature Mapping: traces product features from start through files to data read or written
- Context Graph: repository embeddings and unified graph for AI prompt enhancement
- Auto, Planned, Normal and Coffee Mode for change execution
- AI Chat: conversational interface for code exploration and assistance
- Impact Analysis: understand consequences of changes across codebase
- Access indexed repositories without checking them out locally
- Works with Claude Code, Codex and GitHub Copilot
| - 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 | - ~Zero hallucination: AI has right code context attached before drafting execution plans
- 60% less tokens and 2x faster than alternative approaches
- Works alongside existing AI coding agents without replacing them
| - 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) | 17 ● 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) | 16 | 20 |
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| Referring domains (Majestic) | 16 | 11 |
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CodeZero
Harness Kit