June 2026 performance summary for Kilocode (Kilo-Org/kilocode). Delivered a first-class Vim-style editing experience for the CLI prompt and stabilized Vim-mode behavior across the prompt lifecycle. Implemented a self-contained Vim editing engine with NORMAL/INSERT modes, standard Vim motions, edits, and mode transitions, integrated into the TUI prompt with opt-in configuration and a command palette. Added Visual mode (VISUAL/VISUAL-LINE) to the prompt editor to support selection-based operators and enhanced cursor management. Major fixes centralized in a linewiseOperate helper to address edge cases in EOF handling and state leaks, ensuring Vim mode resets properly and the default cursor style is restored when disabled. Expanded and strengthened test coverage across the Vim engine and linewise operations, adding 27 unit tests for the engine (37 total) and 44 linewise-regression tests. All changes include thorough unit/regression testing and are designed to deliver faster, more reliable CLI editing with lower risk of regressions.