Read-only editor state. Actions: state,selection,open_scenes,viewport,performance.

Write to editor (gated, Undo/Redo). Actions: open_scene,save_scene,save_all,set_selection,focus_node,quit.

Scene file ops (.tscn). Actions: create,read,save,save_as,hierarchy,instantiate. path=res://.

Read editor scene tree nodes. Actions: inspect,tree,find,children,properties,get_signals,get_groups,find_in_group. node_path=/root/....

Edit editor nodes (gated, Undo/Redo). Actions: create,create_batch,delete,reparent,rename,duplicate,set_property,set_properties,set_groups,add_to_group,remove_from_group,connect_signal,disconnect_signal.

GDScript file ops. Actions: read,create,edit(diff-based),write,validate,attach,detach. path=res://.

Project settings & autoloads. Actions: info,get_setting,set_setting,list_settings,autoload_list,autoload_add,autoload_remove,rescan.

InputMap management. Actions: list,add,remove,bind,ensure,get.

Read-only resource inspection. Actions: inspect,list,find,info. path=res://.

File ops. Actions: list,read,search,create,delete,rename. path=res:// or absolute.

Godot official docs (version-matched). Actions: fetch(class_name,method?),search(query).

Log access. Actions: get(source?,count?,offset?,since_ms?),errors(max?,include_warnings?),clear.

Connection health. Actions: check,diagnostics. Call first to verify connectivity.

Game lifecycle. Actions: play(scene?,frozen?),stop,pause,resume,status.

Deterministic clock control (gated). Actions: freeze,unfreeze,step(ms,inputs?),step_until(condition,timeout_ms?,interval_ms?).

Inject input into running game (gated). Actions: action,key,mouse_button,mouse_motion,joypad,text,record_start,record_stop,replay,sequence.

Observe running game state (auto-allow). Actions: digest(groups?),inspect(node_path,properties?),watch(node_path,property,duration_ms?),signals(node_path?,since_ms?).

Execute GDScript in running game (gated). Actions: eval(code,await?),call(node_path,method,args?),assert(condition,description?,await?). Disabled if --no-eval.

Screenshots saved to disk (auto-allow). Actions: game(max_width?,format?,quality?),editor(viewport?,max_width?),region(rect,max_width?,source?),burst(count?,duration_ms?,interval_ms?),cleanup(max_count?,max_age_hours?). Auto-rotation keeps last 50 (configurable via open_godot_mcp/screenshot_max_count) and deletes files older than 24h (configurable via open_godot_mcp/screenshot_max_age_hours); cleanup action forces immediate prune.

Multiplayer game testing. Actions: launch_instance(role,scene?,args?),list_instances,switch,terminate,simulate_peer,network_condition,sync_state,rpc_call.

Manage Godot EDITOR instances. Actions: launch_editor(project_path),list,switch,terminate,adopt(project_path).

DAP debugger. Actions: set_breakpoint,remove_breakpoint,resume,continue,step_over,step_into,step_out,stack_trace,variables,evaluate,list_breakpoints,sessions.

GDScript LSP (auto-allow). Actions: diagnostics(path?),complete,definition,hover,symbols. path=res://.

Performance profiling (auto-allow, game must run). Actions: snapshot,series(duration_ms?,metrics?),spikes(threshold_ms?).

Built-in test framework. Actions: list,run(suite?,test_name?,exclude?),results(verbose?),create(path,test_name).

AnimationPlayer ops. Actions: list,get,create,add_track,delete,play,stop,preset. player_path=/root/.../AnimationPlayer.

TileMapLayer/GridMap cell ops. Actions: read_cells(node_path,region?),set_cell,set_cells,clear. node_path=/root/....

Asset generation & management. Actions: generate_2d(svg,filename,save_path,width?,height?),list,info,import.

Game export. Actions: presets,export(preset,dest_path),add_preset(name,platform,settings).

Batch-execute multiple tool calls in one round-trip (gated). Action: execute(operations:[{tool,action,params}]). No nesting.

C# compile/syntax check. Actions: info,build(project?),syntax(source?/path?).