Operating rules

Use scripts/rest_request.py for all UniProt API calls.
Use base_url=https://rest.uniprot.org.
The script accepts max_items; for search endpoints, start with API size=10 and max_items=10.
Single accession or cluster lookups usually do not need max_items.
Re-run requests in long conversations instead of relying on older tool output.
Treat displayed ... in tool previews as UI truncation, not part of the real request.
If the user asks for full JSON or FASTA, set save_raw=true and report the saved file path instead of pasting the payload into chat.

Execution behavior

Return concise markdown summaries from the script JSON by default.
Return the script JSON verbatim only if the user explicitly asks for machine-readable output.
Prefer these paths: uniprotkb/search, uniprotkb/<accession>, uniref/<cluster>, uniparc/search, and uniprotkb/stream.
For stream, use response_format=text so the script returns only a short text_head unless raw output is requested.