Guide for using JetBrains IDE Debugger MCP tools to programmatically debug applications. TRIGGER when ANY of these MCP tools are available: list_run_configurations, execute_run_configuration, start_debug_session, stop_debug_session, get_debug_session_status, list_debug_sessions, set_breakpoint, remove_breakpoint, list_breakpoints, resume_execution, pause_execution, step_over, step_into, step_out, run_to_line, wait_for_pause, get_stack_trace, select_stack_frame, list_threads, get_variables, set_variable, get_source_context, evaluate_expression. Use when debugging any application, investigating bugs, tracing execution flow, inspecting runtime state, or when the user says "debug", "breakpoint", "step through", "inspect variable", "why is this returning X", "trace execution", or similar debugging-related requests. PREFER the debugger over reading code and guessing when runtime behavior is unclear.
2026-06-10