Paper Access

Overview

Resolve paper access paths and download local artifacts from explicit DOI and URL inputs. URL resolution prefers upstream open_access_pdf_url, then oa_url, then Unpaywall fallbacks. The script writes a canonical access_result.json plus one local artifact per document.

When to Use

Use this skill when:

• a paper candidate already exists and the next step is acquisition
• an upstream retriever already exposed open_access_pdf_url or oa_url
• an agent needs OA resolution from DOI metadata
• a downloader must verify whether a URL really serves a PDF

Do not use this skill for parsing.

Harbor Trial execution

Harbor copies this allowlisted skill to $HOME/.openclaw/skills/paper-access inside the Trial container. Run the script directly from /workspace; the retired benchmark runner and host workspace paths are not available.

python "$HOME/.openclaw/skills/paper-access/scripts/paper_access.py" \
  --request-json /workspace/requests/paper-access.json \
  --output-dir /workspace/outputs/paper-access

Read references/contracts.md for request examples and environment variables.

Downstream callers should read access_result.json and gate later steps on:

• source_url_kind
• artifact_kind
• is_readable_local_pdf