Show HN: PromiseDiff – audit listings against delivered files

Category: devtools

Tags: local-first, verification, pdf, llm, audit

Score: 6.3/10 (Innovation: 6, Technical: 7, Documentation: 7, Utility: 5)

PromiseDiff is a local-first tool that audits digital product listings against the actual delivered files, verifying claims like page counts and dimensions via measurements and semantic content via local LLM. It emphasizes evidence-based verification, distinguishing supported, contradicted, and unverified claims to avoid false accusations. The project is technically solid with a clear architecture, though its utility is currently niche to PDF sellers.

Target audience: content creators, e-commerce sellers, quality assurance engineers

Repository: https://www.pkazantsev.com/writing/promise-diff/ · TypeScript · MIT

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