Cursor CLI 2026.09.15-d2fe57e

• [removed] Built-in shell_command tool — no longer part of the agent tool set.
• [removed] Slash commands /bug, /checkpoint, and /cost.
• [removed] providers configuration key.
• [changed] Core native binaries and helpers rebuilt (cursor-agent-sea, worker, sandbox, file service, merkle-tree, crepectl, and related native modules).

Under the hood

• Agent store path gains clearer handling for quotas, throttling, undelete, and related backend states.
• Agent host session storage work, including migrate-on-open and host-owned session storage paths.
• Groundwork for managed Agent SDK / SDK v2 flows and private-inference host wiring.
• Auth and client connection internals updated (client id, authorization params, loopback, consent/resource-indicator omission flags, custom-scheme redirect rejection, unauthenticated connect, server-enabled checks).
• SCM provider and plan/member labeling hooks for host-side reporting.
• Assorted older preview/metrics hooks cleaned up (canvas preview flag, line add/delete counters, notes/tools folder events, and similar).

Upgrade notes

• Workflows or scripts that called /bug, /checkpoint, /cost, or depended on the shell_command tool need another path.
• Drop any remaining providers config; it is no longer recognized.
• Same stable channel and agent version line (2.15.4); treat this as a CLI bundle/patch bump (2026.09.15-d2fe57e).