Open Demo

Open a .dm_91 demo file for analysis. Returns a session_id, summary (map, gametype, players, frame_count, duration_ms), and player list. IMPORTANT: use duration_ms for the demo length — do NOT compute duration from frame_count (frame rate varies). Accepts: a path relative to DEMO_PATH, an absolute path, or an http(s):// URL (streamed with a size limit, no temp file). HTTP/S3 sources: analysis is pre-computed in one streaming pass; all get_demo_* tools return cached results instantly. Seek and cut operations trigger a re-download. Local sources: analysis is cached on the first tool call, then reused — no re-iteration.