Cursor

The AI coding company behind the Cursor IDE, the Composer model family, and the agent-swarm research line; in the corpus it appears in three unrelated roles — a publisher of first-party swarm engineering (planner/worker roles, a custom 1,000-commits-per-second VCS, merge-conflict mediation, the agent-authored Field Guide), a heavily-measured coding agent in third-party telemetry and security studies, and the vendor with the largest count of reproduced sandbox escapes (CVE-2026-48124 and three more, fixed in 3.0.0)