SightDiff

The product is a local pre-commit visual proof tool that captures before/after screenshots of configured pages and states and pixel-diffs them to flag changed surfaces and verify untouched ones as identical before git commit, catching unintended regressions from AI agent edits. It sells to software developers and engineering teams using AI coding agents such as Claude Code, Cursor, and Copilot. It is positioned against agents grading their own homework by rendering proof outside the agent's reach as a separate local process with no cloud, integration, or CI required.

Key features

• Pixel-perfect before/after screenshots
• Capture element states and auth-gated views
• Mask dynamic content
• Pixel-diff with highlighted changed regions
• Proof sheet with changed surfaces first
• Verify untouched pages as identical
• Exit non-zero as pre-commit gate
• Works with any agent
• Auto-generate config by crawling app
• Runs locally with no upload