sci papers downloder

What this gives the agent

End-to-end: topic/keywords/DOI in → validated PDF files out. One pipeline, two interchangeable search backends, a layered download strategy, and concurrency.

Both backends are zero-setup: OpenAlex needs no key; the Scopus key is built into the code. The only thing the operator must provide is UNPAYWALL_EMAIL.

Agent decision policy (no-context deterministic)

Follow this top-down. Each step says which script and why.

1. Default to OpenAlex end-to-end → skills/sci-papers-downloder/scripts/openalex_batch_download.py. Free, no key, ~250M works, returns metadata and a direct OA PDF hint. This is the right choice for ~95% of "find and download papers on X" requests.