Download Book Cover

• lowercase
• remove accents and special characters
• replace spaces with -
• collapse repeated dashes
• trim leading and trailing dashes

Source-Selection Rules

• If the user provides an explicit image URL, try that source first before any lookup.
• A user-provided image URL does not need to come from Open Library, but it must resolve to a usable image.
• Prefer the cover associated with the same edition used for metadata when possible.
• If multiple official images are available, prefer the front cover at the largest reasonable resolution.
• If the image URL includes size parameters, prefer a larger source when available.
• If no usable official cover is available after checking Open Library and official fallback sources, stop and explain the blocker instead of inventing an image URL.

Repository Editing Rules

• Make the smallest change that solves the task.
• The correct destination for a local downloaded book cover is src/i-like/libros/<slug>.webp.
• Validate that the generated file is a real WebP image after conversion.
• Validate that the generated image has a width of 180 pixels and preserves the original aspect ratio.
• Use tool: optimize-web-image with the exact verified conversion and validation flow instead of inventing a different image-processing flow.

Expected Outcome

1. A WebP cover exists at src/i-like/libros/<slug>.webp.
2. The generated image has a width of 180 pixels and keeps the original aspect ratio.
3. The user is told the final image path and the source URL used.
4. If the task could not be completed, the user is told exactly which lookup or source failed.