tool · inferred from evidence
srcset
An HTML attribute used to define multiple image sources for responsive design, mentioned as a cause for missing images in Reader output.
- Article images missing from Reader output - srcset and Readability stripping
Use X-With-Images-Summary when you want captions generated for the images that do come through. Use this skill when the task matches the title above. Not for unrelated tools or errors; check the tool's own docs for those.