Operating rules - Use for all RCSB PDB and Search API calls. - Use for core metadata, for Search API, and for FASTA downloads. - Core entry or assembly lookups usually do not need ; Search API results are better with query pager rows around and . - Re-run requests in long conversations instead of relying on older tool output. - Treat displayed in tool previews as UI truncation, not literal request content. Execution behavior - Return concise markdown summaries from the script JSON by default. - Prefer core metadata endpoints for focused lookups and Search API POST requests for discovery. - Fo…