developer-tools ai-agents version-control agentic-editing

Human vs. AI – Diff-based line-level provenance for text under agentic editing

GitHub - eighttrigrams/us-vs-them: Line-level provenance for text under agentic editing — who wrote this line, us or them? — derived from version history, not from markup in the file.

github.com

August 9, 2026

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Summary

GitHub repository eighttrigrams/us-vs-them provides line-level provenance for text under agentic editing, identifying authorship based on version history rather than file markup. It can be utilized as a library or command-line interface (CLI) tool.

Key Takeaways

The us-vs-them tool evaluates line-level provenance in text, identifying authorship as either human or agent-generated based on version history.
The tool outputs a range of authorship scores, indicating the degree of human involvement in specific sections of text.
It operates without the need for specific text markup, supporting plain text formats like markdown.
The tool can be integrated into a git repository to analyze changes made to files, providing insights into the contributions of human authors versus agents.

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