Show HN: Vastlint, inline linting for ad tags in VS Code, Kiro, Cursor

Category: devtools

Tags: ad-tech, xml-validator, developer-tools

Score: 6.8/10 (Innovation: 5, Technical: 7, Documentation: 9, Utility: 6)

Vastlint is a specialized validator for VAST XML ad tags, checking compliance against multiple IAB Tech Lab specifications. It's interesting because it targets a high-value niche ($30B+ CTV/video ad spend) with no widely adopted open-source alternative, offering CLI, library, web, and editor integrations.

Target audience: ad-tech engineers, video platform developers, devops

Repository: https://github.com/aleksUIX/vastlint · Rust · NOASSERTION · 5 stars

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