Operating rules - Use for all cBioPortal API calls. - Use . - Collection endpoints are better with and ; single study or profile lookups usually do not need . - Use plus for fetch-style endpoints such as mutation fetches. - Send in . - 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 these paths: , , , and study-level clinical or sample endpoints. - If the user needs the full payload, se…