Initial Void Bastion 0.20 prototype

addons/agent_tools/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Blake Bukowsky
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/agent_tools/README.md

@@ -0,0 +1,43 @@
+# Agent Tools
+
+Godot editor plugin that exposes **43 tools across 12 namespaces** (scene edits, signal wiring, resource creation, reference validation, animation, headless test runs, etc.) over MCP so coding agents can operate through the editor's real APIs instead of hand-editing `.tscn` / `.tres` / `project.godot` as text.
+
+Works with any MCP-capable client — Claude Code, Claude Desktop, Cursor, Cline, Windsurf, Continue, Zed.
+
+## Quick start
+
+1. Enable this plugin: *Project → Project Settings → Plugins* → tick **Agent Tools**.
+2. Confirm the Output panel shows `[agent_tools] listening on 127.0.0.1:9920`.
+3. Configure your MCP client to run the bridge — see the [full setup guide](https://github.com/BlakeBukowsky/GodotTools#configure-your-agent) for per-client config paths.
+
+Simplest user-scoped config (for Claude Code, Cursor, Windsurf, etc. — different config file per client):
+
+```json
+{
+  "mcpServers": {
+    "godot-agent-tools": {
+      "command": "npx",
+      "args": ["-y", "godot-agent-tools-mcp"]
+    }
+  }
+}
+```
+
+Full documentation, troubleshooting, and tool catalog: **https://github.com/BlakeBukowsky/GodotTools**
+
+## Raw TCP protocol (if you want to skip MCP)
+
+Line-delimited JSON-RPC on `127.0.0.1:9920`:
+
+```json
+{"id": 1, "method": "scene.current", "params": {}}
+```
+
+Response:
+```json
+{"id": 1, "result": {"open": false}}
+```
+
+## License
+
+MIT — see [LICENSE](LICENSE).

addons/agent_tools/headless/driver.gd

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+# Auto-run driver for run.scene_headless (input simulation, multi-screenshot,
+# state dump, deterministic seed). Reads a per-call config from
+# res://.godot/agent_tools/headless/config.json, instances the target scene,
+# injects scripted input per frame, captures screenshots at specified frames,
+# optionally writes a final-state JSON dump, then quits.
+
+@tool
+extends Node
+
+const CONFIG_PATH := "res://.godot/agent_tools/headless/config.json"
+const Coerce := preload("res://addons/agent_tools/tools/_coerce.gd")
+
+var _input_script: Array = []
+var _screenshots: Array = []  # [{frame, path}, ...]
+var _state_dump: bool = false
+var _state_dump_path: String = ""
+var _quit_frame: int = 120
+var _frame: int = 0
+var _target_inst: Node = null
+
+
+func _ready() -> void:
+	var f := FileAccess.open(CONFIG_PATH, FileAccess.READ)
+	if f == null:
+		push_error("[headless_driver] config not found at %s" % CONFIG_PATH)
+		get_tree().quit(2)
+		return
+	var parsed = JSON.parse_string(f.get_as_text())
+	f.close()
+	if typeof(parsed) != TYPE_DICTIONARY:
+		push_error("[headless_driver] malformed config")
+		get_tree().quit(2)
+		return
+
+	# Seed the global RNG before instancing so the target scene's randomness
+	# (randi/randf in _ready, etc.) is deterministic per-seed.
+	if parsed.has("seed"):
+		seed(int(parsed.seed))
+
+	_input_script = parsed.get("input_script", [])
+	_screenshots = parsed.get("screenshots", [])
+	_state_dump = bool(parsed.get("state_dump", false))
+	_state_dump_path = str(parsed.get("state_dump_path", ""))
+	_quit_frame = int(parsed.get("quit_frame", 120))
+	var target_scene_path: String = parsed.get("target_scene", "")
+
+	if target_scene_path == "":
+		push_error("[headless_driver] config missing 'target_scene'")
+		get_tree().quit(2)
+		return
+	var packed = load(target_scene_path)
+	if packed == null:
+		push_error("[headless_driver] failed to load target %s" % target_scene_path)
+		get_tree().quit(2)
+		return
+	_target_inst = packed.instantiate()
+	add_child(_target_inst)
+	print("[headless_driver] driving %s for %d frames, %d events, %d screenshots%s" %
+		[target_scene_path, _quit_frame, _input_script.size(), _screenshots.size(),
+			", state_dump=on" if _state_dump else ""])
+
+
+func _process(_delta: float) -> void:
+	# 1. Inject input events scheduled for this frame.
+	for spec in _input_script:
+		if int(spec.get("frame", -1)) == _frame:
+			_inject(spec)
+
+	# 2. Capture screenshots scheduled for this frame.
+	for shot in _screenshots:
+		if int(shot.get("frame", -1)) == _frame:
+			_capture(str(shot.get("path", "")))
+
+	if _frame >= _quit_frame:
+		if _state_dump and _state_dump_path != "":
+			_write_state_dump()
+		print("[headless_driver] done at frame %d" % _frame)
+		get_tree().quit(0)
+		return
+	_frame += 1
+
+
+func _inject(spec: Dictionary) -> void:
+	match spec.get("type", ""):
+		"action_press":
+			Input.action_press(spec.get("action", ""), float(spec.get("strength", 1.0)))
+		"action_release":
+			Input.action_release(spec.get("action", ""))
+		"action_tap":
+			Input.action_press(spec.get("action", ""), float(spec.get("strength", 1.0)))
+			Input.action_release(spec.get("action", ""))
+		"key":
+			var ek := InputEventKey.new()
+			var kc = spec.get("keycode", 0)
+			if kc is String:
+				ek.physical_keycode = OS.find_keycode_from_string(kc)
+			else:
+				ek.physical_keycode = int(kc)
+			ek.pressed = bool(spec.get("pressed", true))
+			Input.parse_input_event(ek)
+		"mouse_click":
+			var pos = spec.get("position", [0, 0])
+			var v := Vector2(pos[0], pos[1])
+			var button := int(spec.get("button", 1))
+			var down := InputEventMouseButton.new()
+			down.button_index = button
+			down.pressed = true
+			down.position = v
+			down.global_position = v
+			Input.parse_input_event(down)
+			var up := InputEventMouseButton.new()
+			up.button_index = button
+			up.pressed = false
+			up.position = v
+			up.global_position = v
+			Input.parse_input_event(up)
+		"mouse_motion":
+			var pos = spec.get("position", [0, 0])
+			var em := InputEventMouseMotion.new()
+			em.position = Vector2(pos[0], pos[1])
+			em.global_position = em.position
+			Input.parse_input_event(em)
+		_:
+			push_warning("[headless_driver] unknown event type: %s" % spec.get("type", "<missing>"))
+
+
+func _capture(path: String) -> void:
+	if path == "":
+		return
+	var vp := get_tree().root.get_viewport()
+	if vp == null:
+		push_warning("[headless_driver] no root viewport")
+		return
+	var tex := vp.get_texture()
+	if tex == null:
+		push_warning("[headless_driver] viewport has no texture (running under dummy renderer?)")
+		return
+	var img := tex.get_image()
+	if img == null or img.is_empty():
+		push_warning("[headless_driver] failed to capture image at frame %d" % _frame)
+		return
+	var dir := path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir):
+		DirAccess.make_dir_recursive_absolute(dir)
+	var err := img.save_png(path)
+	if err != OK:
+		push_warning("[headless_driver] save_png failed: %d" % err)
+	else:
+		print("[headless_driver] frame %d -> %s" % [_frame, path])
+
+
+func _write_state_dump() -> void:
+	if _target_inst == null:
+		return
+	var snapshot := _node_snapshot(_target_inst, _target_inst)
+	var f := FileAccess.open(_state_dump_path, FileAccess.WRITE)
+	if f == null:
+		push_warning("[headless_driver] failed to open state dump path: %s" % _state_dump_path)
+		return
+	f.store_string(JSON.stringify(snapshot, "  "))
+	f.close()
+	print("[headless_driver] state dump -> %s" % _state_dump_path)
+
+
+# Mirrors scene.inspect's shape, plus a small selection of commonly-useful
+# properties. Kept narrow on purpose — full get_property_list() dumps balloon.
+static func _node_snapshot(node: Node, scene_root: Node) -> Dictionary:
+	var d := {
+		"name": String(node.name),
+		"class": node.get_class(),
+		"node_path": "." if node == scene_root else String(scene_root.get_path_to(node)),
+		"script": "",
+		"properties": {},
+		"children": [],
+	}
+	var scr := node.get_script() as Script
+	if scr:
+		d.script = scr.resource_path
+	# Common props worth verifying, if present on this node type.
+	for prop_name in ["visible", "position", "global_position", "size", "text",
+			"value", "modulate", "color", "rotation", "scale", "disabled", "pressed"]:
+		if prop_name in node:
+			d.properties[prop_name] = Coerce.to_json(node.get(prop_name))
+	for child in node.get_children():
+		if child.owner == scene_root or child == scene_root:
+			d.children.append(_node_snapshot(child, scene_root))
+	return d

addons/agent_tools/headless/driver.gd.uid

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+uid://iko41fhoo3mm

addons/agent_tools/headless/driver.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://addons/agent_tools/headless/driver.gd" id="1"]
+
+[node name="HeadlessDriver" type="Node"]
+script = ExtResource("1")

addons/agent_tools/icon.png.import

@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://d2wklut1fj5ed"
+path="res://.godot/imported/icon.png-381bc5920e04d060db359f1234d8c8b0.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://addons/agent_tools/icon.png"
+dest_files=["res://.godot/imported/icon.png-381bc5920e04d060db359f1234d8c8b0.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

addons/agent_tools/plugin.cfg

@@ -0,0 +1,9 @@
+[plugin]
+
+name="Agent Tools"
+description="70 tools + 6 MCP Resources for coding agents to edit scenes, wire signals, create resources, and more through Godot's real APIs instead of hand-editing .tscn/.tres files. If you haven't already, configure your MCP client (Claude Code, Cursor, Cline, etc.) per the README: https://github.com/BlakeBukowsky/GodotTools"
+author="Blake Bukowsky"
+version="0.3.1"
+license="MIT"
+script="plugin.gd"
+icon="icon.png"

addons/agent_tools/plugin.gd

@@ -0,0 +1,132 @@
+@tool
+extends EditorPlugin
+
+const Server := preload("res://addons/agent_tools/server.gd")
+const Registry := preload("res://addons/agent_tools/registry.gd")
+
+const DEFAULT_PORT := 9920
+const PORT_RANGE_END := 9929  # scan 9920..9929 inclusive
+const PORT_SETTING := "agent_tools/port"
+const BRIDGE_AUTOLOAD_NAME := "_MCPGameBridge"
+const BRIDGE_AUTOLOAD_PATH := "res://addons/agent_tools/runtime/game_bridge.gd"
+
+const DEFAULT_INTERFACE := "127.0.0.1"
+const INTERFACE_SETTING := "agent_tools/interface"
+
+var _server: Server
+var _registry: Registry
+var _bound_port: int = -1
+var _session_file_path: String = ""
+
+
+func _enter_tree() -> void:
+	_registry = Registry.new()
+	_server = Server.new(_registry)
+	add_child(_server)
+
+	# Interface resolution
+	# Defaults to 127.0.0.1, override with project.godot agent_tools/interface
+	var forced_interface := DEFAULT_INTERFACE
+	if ProjectSettings.has_setting(INTERFACE_SETTING):
+		forced_interface = ProjectSettings.get_setting(INTERFACE_SETTING)
+
+	# Port resolution:
+	#   1. If 'agent_tools/port' is set in project.godot, honor it strictly (fail if busy).
+	#   2. Otherwise try DEFAULT_PORT..PORT_RANGE_END and use the first free one.
+	# This lets multiple Godot editors coexist: first-to-start takes 9920, second takes 9921, etc.
+	var forced_port := -1
+	if ProjectSettings.has_setting(PORT_SETTING):
+		forced_port = int(ProjectSettings.get_setting(PORT_SETTING))
+
+	if forced_port != -1:
+		if _server.start(forced_port, forced_interface):
+			_bound_port = forced_port
+		else:
+			push_error("[agent_tools] configured port %s:%d is busy. Either close the other process or change 'agent_tools/port' in project.godot." % [forced_interface, forced_port])
+	else:
+		for p in range(DEFAULT_PORT, PORT_RANGE_END + 1):
+			if _server.start(p, forced_interface):
+				_bound_port = p
+				break
+		if _bound_port == -1:
+			push_error("[agent_tools] all ports %d-%d are busy on %s. Close other Godot editors running agent_tools, or set 'agent_tools/port' in project.godot." % [DEFAULT_PORT, PORT_RANGE_END, forced_interface])
+
+	if _bound_port != -1:
+		print("[agent_tools] listening on %s:%d" % [forced_interface, _bound_port])
+		print("[agent_tools] If you haven't already, configure your MCP client (Claude Code, Cursor, Cline, etc.) to use these tools.")
+		print("[agent_tools] Setup guide: https://github.com/BlakeBukowsky/GodotTools#configure-your-agent")
+		_write_session_registry()
+
+	# Register the runtime bridge autoload so editor.game_screenshot / logs.read
+	# can reach the running game. add_autoload_singleton() writes an entry to
+	# project.godot; remove_autoload_singleton() in _exit_tree cleans it up.
+	if not ProjectSettings.has_setting("autoload/" + BRIDGE_AUTOLOAD_NAME):
+		add_autoload_singleton(BRIDGE_AUTOLOAD_NAME, BRIDGE_AUTOLOAD_PATH)
+
+
+func _exit_tree() -> void:
+	_remove_session_registry()
+	if _server:
+		_server.stop()
+		_server.queue_free()
+		_server = null
+	_registry = null
+	_bound_port = -1
+	if ProjectSettings.has_setting("autoload/" + BRIDGE_AUTOLOAD_NAME):
+		remove_autoload_singleton(BRIDGE_AUTOLOAD_NAME)
+
+
+# Session registry is a per-PID JSON file under a cross-project, user-scoped
+# directory. The MCP shim reads these on startup so `session.list` can discover
+# every running Godot editor + which port to talk to each.
+func _write_session_registry() -> void:
+	var dir_path := _session_registry_dir()
+	if dir_path == "":
+		return
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			push_warning("[agent_tools] could not create session registry dir: %s" % dir_path)
+			return
+	var pid := OS.get_process_id()
+	_session_file_path = dir_path.path_join("%d.json" % pid)
+
+	var project_name := ""
+	if ProjectSettings.has_setting("application/config/name"):
+		project_name = str(ProjectSettings.get_setting("application/config/name"))
+	var version := Engine.get_version_info()
+
+	var entry := {
+		"pid": pid,
+		"port": _bound_port,
+		"project_path": ProjectSettings.globalize_path("res://"),
+		"project_name": project_name,
+		"godot_version": "%d.%d.%d-%s" % [version.major, version.minor, version.patch, version.status],
+		"started_at_unix": int(Time.get_unix_time_from_system()),
+	}
+	var f := FileAccess.open(_session_file_path, FileAccess.WRITE)
+	if f == null:
+		push_warning("[agent_tools] could not write session file: %s" % _session_file_path)
+		return
+	f.store_string(JSON.stringify(entry, "  "))
+	f.close()
+
+
+func _remove_session_registry() -> void:
+	if _session_file_path == "":
+		return
+	if FileAccess.file_exists(_session_file_path):
+		@warning_ignore("return_value_discarded")
+		DirAccess.remove_absolute(_session_file_path)
+	_session_file_path = ""
+
+
+# Cross-project location: <user home>/.godot-agent-tools/sessions/. Chosen to
+# sit outside any single project's res:// or user:// tree.
+func _session_registry_dir() -> String:
+	var home := OS.get_environment("USERPROFILE")
+	if home == "":
+		home = OS.get_environment("HOME")
+	if home == "":
+		return ""
+	return home.path_join(".godot-agent-tools").path_join("sessions")

addons/agent_tools/plugin.gd.uid

@@ -0,0 +1 @@
+uid://bkvb64lq51xyg

addons/agent_tools/registry.gd

@@ -0,0 +1,129 @@
+@tool
+extends RefCounted
+
+const SceneTools := preload("res://addons/agent_tools/tools/scene_tools.gd")
+const SignalTools := preload("res://addons/agent_tools/tools/signal_tools.gd")
+const ScriptTools := preload("res://addons/agent_tools/tools/script_tools.gd")
+const ResourceTools := preload("res://addons/agent_tools/tools/resource_tools.gd")
+const RefsTools := preload("res://addons/agent_tools/tools/refs_tools.gd")
+const ProjectTools := preload("res://addons/agent_tools/tools/project_tools.gd")
+const EditorTools := preload("res://addons/agent_tools/tools/editor_tools.gd")
+const DocsTools := preload("res://addons/agent_tools/tools/docs_tools.gd")
+const InputTools := preload("res://addons/agent_tools/tools/input_tools.gd")
+const RunTools := preload("res://addons/agent_tools/tools/run_tools.gd")
+const FsTools := preload("res://addons/agent_tools/tools/fs_tools.gd")
+const AnimationTools := preload("res://addons/agent_tools/tools/animation_tools.gd")
+const UserFsTools := preload("res://addons/agent_tools/tools/user_fs_tools.gd")
+const PerformanceTools := preload("res://addons/agent_tools/tools/performance_tools.gd")
+const TestTools := preload("res://addons/agent_tools/tools/test_tools.gd")
+const ClientTools := preload("res://addons/agent_tools/tools/client_tools.gd")
+const PhysicsTools := preload("res://addons/agent_tools/tools/physics_tools.gd")
+const ThemeTools := preload("res://addons/agent_tools/tools/theme_tools.gd")
+
+
+# Returns {"data": <any>} on success, {"error": {"code": int, "message": str}} on failure.
+func dispatch(method: String, params: Dictionary) -> Dictionary:
+	match method:
+		"scene.new":              return SceneTools.new_scene(params)
+		"scene.add_node":         return SceneTools.add_node(params)
+		"scene.instance_packed":  return SceneTools.instance_packed(params)
+		"scene.duplicate_node":   return SceneTools.duplicate_node(params)
+		"scene.remove_node":      return SceneTools.remove_node(params)
+		"scene.reparent":         return SceneTools.reparent(params)
+		"scene.set_property":     return SceneTools.set_property(params)
+		"scene.get_property":     return SceneTools.get_property(params)
+		"scene.call_method":      return SceneTools.call_method(params)
+		"scene.build_tree":       return SceneTools.build_tree(params)
+		"scene.open":             return SceneTools.open_scene(params)
+		"scene.save":             return SceneTools.save_scene(params)
+		"scene.current":          return SceneTools.current(params)
+		"scene.inspect":          return SceneTools.inspect(params)
+		"scene.capture_screenshot": return SceneTools.capture_screenshot(params)
+		"signal.connect":         return SignalTools.connect_signal(params)
+		"signal.disconnect":      return SignalTools.disconnect_signal(params)
+		"signal.list":            return SignalTools.list_signals(params)
+		"script.create":          return ScriptTools.create(params)
+		"script.attach":          return ScriptTools.attach(params)
+		"script.patch":           return ScriptTools.patch(params)
+		"resource.create":        return ResourceTools.create(params)
+		"resource.set_property":  return ResourceTools.set_property(params)
+		"resource.call_method":   return ResourceTools.call_method(params)
+		"refs.validate_project":  return RefsTools.validate_project(params)
+		"refs.find_usages":       return RefsTools.find_usages(params)
+		"refs.rename":            return RefsTools.rename(params)
+		"refs.rename_class":      return RefsTools.rename_class(params)
+		"project.get_setting":    return ProjectTools.get_setting(params)
+		"project.set_setting":    return ProjectTools.set_setting(params)
+		"autoload.add":           return ProjectTools.autoload_add(params)
+		"autoload.remove":        return ProjectTools.autoload_remove(params)
+		"autoload.list":          return ProjectTools.autoload_list(params)
+		"editor.reload_filesystem": return EditorTools.reload_filesystem(params)
+		"editor.save_all_scenes": return EditorTools.save_all_scenes(params)
+		"editor.state":           return EditorTools.state(params)
+		"editor.selection_get":   return EditorTools.selection_get(params)
+		"editor.selection_set":   return EditorTools.selection_set(params)
+		"editor.game_screenshot": return EditorTools.game_screenshot(params)
+		"logs.read":              return EditorTools.logs_read(params)
+		"logs.clear":             return EditorTools.logs_clear(params)
+		"docs.class_ref":         return DocsTools.class_ref(params)
+		"input_map.add_action":   return InputTools.add_action(params)
+		"input_map.add_event":    return InputTools.add_event(params)
+		"input_map.list":         return InputTools.list_actions(params)
+		"input_map.remove_action": return InputTools.remove_action(params)
+		"input_map.remove_event": return InputTools.remove_event(params)
+		"run.scene_headless":     return RunTools.scene_headless(params)
+		"fs.list":                return FsTools.list(params)
+		"fs.read_text":           return FsTools.read_text(params)
+		"fs.write_text":          return FsTools.write_text(params)
+		"user_fs.read":           return UserFsTools.read(params)
+		"user_fs.list":           return UserFsTools.list(params)
+		"animation.list":         return AnimationTools.list_animations(params)
+		"animation.add_animation": return AnimationTools.add_animation(params)
+		"animation.remove_animation": return AnimationTools.remove_animation(params)
+		"animation.add_value_track": return AnimationTools.add_value_track(params)
+		"performance.monitors":   return PerformanceTools.monitors(params)
+		"test.run":               return TestTools.run(params)
+		"client.list":            return ClientTools.list_clients(params)
+		"client.configure":       return ClientTools.configure(params)
+		"client.remove":          return ClientTools.remove(params)
+		"physics.autofit_collision_shape_2d": return PhysicsTools.autofit_collision_shape_2d(params)
+		"theme.set_color":        return ThemeTools.set_color(params)
+		"theme.set_constant":     return ThemeTools.set_constant(params)
+		"theme.set_font_size":    return ThemeTools.set_font_size(params)
+		"theme.set_stylebox_flat": return ThemeTools.set_stylebox_flat(params)
+		"batch.execute":          return batch_execute(params)
+		_:
+			return {"error": {"code": -32601, "message": "method not found: %s" % method}}
+
+
+# batch.execute — run multiple tool calls in one round trip.
+# Params: {calls: [{method, params?}, ...], stop_on_error?: false}
+# Returns: {results: [{method, ok, data|error, index}, ...]}
+func batch_execute(params: Dictionary) -> Dictionary:
+	var calls: Array = params.get("calls", [])
+	var stop_on_error: bool = params.get("stop_on_error", false)
+	if calls.is_empty():
+		return {"error": {"code": -32602, "message": "missing 'calls' (array of {method, params})"}}
+
+	var results: Array = []
+	for i in calls.size():
+		var entry = calls[i]
+		if typeof(entry) != TYPE_DICTIONARY or not entry.has("method"):
+			results.append({"index": i, "ok": false, "error": "each call needs {method, params?}"})
+			if stop_on_error:
+				break
+			continue
+		var sub_method: String = entry.method
+		var sub_params: Dictionary = entry.get("params", {})
+		var sub_result: Dictionary = dispatch(sub_method, sub_params)
+		var row := {"index": i, "method": sub_method}
+		if sub_result.has("error"):
+			row["ok"] = false
+			row["error"] = sub_result.error
+		else:
+			row["ok"] = true
+			row["data"] = sub_result.get("data")
+		results.append(row)
+		if stop_on_error and not row.ok:
+			break
+	return {"data": {"results": results, "count": results.size(), "requested": calls.size()}}

addons/agent_tools/registry.gd.uid

@@ -0,0 +1 @@
+uid://b5pe4omwjkjgo

addons/agent_tools/runtime/bridge_logger.gd

@@ -0,0 +1,31 @@
+# Custom Logger that forwards every captured message to the game bridge's
+# log buffer. Has to live in its own top-level file — nested classes don't
+# reliably register Logger's virtual overrides (_log_error / _log_message).
+
+extends Logger
+
+var _bridge: Node
+
+
+func _init(bridge: Node) -> void:
+	_bridge = bridge
+
+
+func _log_error(function: String, file: String, line: int, code: String, rationale: String, editor_notify: bool, error_type: int, script_backtraces: Array) -> void:
+	# error_type is Logger.ErrorType: 0=ERROR, 1=WARNING, 2=SCRIPT, 3=SHADER.
+	var level: String
+	match error_type:
+		1: level = "WARNING"
+		2: level = "SCRIPT"
+		3: level = "SHADER"
+		_: level = "ERROR"
+	var msg: String = rationale if rationale != "" else code
+	if file != "" and line > 0:
+		msg += "  (at %s:%d in %s)" % [file, line, function]
+	if _bridge and _bridge.has_method("log_entry"):
+		_bridge.log_entry(level, msg)
+
+
+func _log_message(message: String, error: bool) -> void:
+	if _bridge and _bridge.has_method("log_entry"):
+		_bridge.log_entry("ERROR" if error else "INFO", message.strip_edges())

addons/agent_tools/runtime/bridge_logger.gd.uid

@@ -0,0 +1 @@
+uid://wosqs8dlh1vx

addons/agent_tools/runtime/game_bridge.gd

@@ -0,0 +1,134 @@
+# MCPGameBridge — runtime autoload registered by the Agent Tools plugin.
+#
+# Bridges the editor-side agent tools to the *running* game via a file-based
+# request/response channel under res://.godot/agent_tools/bridge/. Currently:
+#   - screenshot: capture the running viewport, save to a path
+#   - logs:       append print/push_error/push_warning output to a buffer
+#
+# This script ONLY runs in the game process (checks Engine.is_editor_hint()
+# on startup and disables itself in the editor). The editor plugin registers
+# it via add_autoload_singleton() on _enter_tree and removes it on _exit_tree.
+
+extends Node
+
+const BridgeLogger := preload("res://addons/agent_tools/runtime/bridge_logger.gd")
+const BRIDGE_DIR := "res://.godot/agent_tools/bridge"
+const REQUEST_PATH := BRIDGE_DIR + "/request.json"
+const RESPONSE_PATH := BRIDGE_DIR + "/response.json"
+const LOGS_PATH := BRIDGE_DIR + "/logs.json"
+const POLL_INTERVAL_SEC := 0.05  # 20 Hz — cheap enough, responsive enough
+const LOG_BUFFER_MAX := 500
+
+var _timer: Timer
+var _log_buffer: Array = []
+var _initialized := false
+
+
+func _ready() -> void:
+	if Engine.is_editor_hint():
+		# Tool mode — don't do anything inside the editor. The bridge only
+		# makes sense in the running game.
+		return
+	_initialized = true
+	_ensure_bridge_dir()
+	# Poll for editor requests on a timer so we don't eat a _process callback.
+	_timer = Timer.new()
+	_timer.wait_time = POLL_INTERVAL_SEC
+	_timer.one_shot = false
+	_timer.autostart = true
+	_timer.timeout.connect(_poll_request)
+	add_child(_timer)
+	# Attach our custom logger to capture print / push_error / push_warning
+	# from the game and mirror them to the log buffer file so logs.read can
+	# pick them up from the editor side.
+	var logger := BridgeLogger.new(self)
+	OS.add_logger(logger)
+
+
+func _ensure_bridge_dir() -> void:
+	if not DirAccess.dir_exists_absolute(BRIDGE_DIR):
+		@warning_ignore("return_value_discarded")
+		DirAccess.make_dir_recursive_absolute(BRIDGE_DIR)
+
+
+# Called by MCPBridgeLogger whenever the game writes to stdout/stderr.
+func log_entry(level: String, message: String) -> void:
+	_log_buffer.append({
+		"level": level,
+		"message": message,
+		"time_ms": Time.get_ticks_msec(),
+	})
+	if _log_buffer.size() > LOG_BUFFER_MAX:
+		_log_buffer = _log_buffer.slice(_log_buffer.size() - LOG_BUFFER_MAX)
+	# Flush to disk so editor-side logs.read sees it. Debounced by poll interval
+	# in practice because each log call flushes but writes are cheap.
+	_flush_logs()
+
+
+func _flush_logs() -> void:
+	var f := FileAccess.open(LOGS_PATH, FileAccess.WRITE)
+	if f == null:
+		return
+	f.store_string(JSON.stringify(_log_buffer))
+	f.close()
+
+
+func _poll_request() -> void:
+	if not FileAccess.file_exists(REQUEST_PATH):
+		return
+	var f := FileAccess.open(REQUEST_PATH, FileAccess.READ)
+	if f == null:
+		return
+	var body := f.get_as_text()
+	f.close()
+	@warning_ignore("return_value_discarded")
+	DirAccess.remove_absolute(REQUEST_PATH)
+
+	var parsed = JSON.parse_string(body)
+	if typeof(parsed) != TYPE_DICTIONARY:
+		_write_response({"id": "", "error": "malformed request"})
+		return
+	var req_id: String = parsed.get("id", "")
+	match parsed.get("type", ""):
+		"screenshot":
+			_handle_screenshot(req_id, parsed)
+		_:
+			_write_response({"id": req_id, "error": "unknown request type: %s" % parsed.get("type", "<missing>")})
+
+
+func _handle_screenshot(req_id: String, req: Dictionary) -> void:
+	var output_path: String = req.get("output", "")
+	if output_path == "":
+		_write_response({"id": req_id, "error": "missing 'output'"})
+		return
+	var vp := get_viewport()
+	if vp == null:
+		_write_response({"id": req_id, "error": "no viewport available"})
+		return
+	var tex := vp.get_texture()
+	if tex == null:
+		_write_response({"id": req_id, "error": "viewport has no texture"})
+		return
+	var img := tex.get_image()
+	if img == null or img.is_empty():
+		_write_response({"id": req_id, "error": "failed to capture image"})
+		return
+	var dir := output_path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir):
+		@warning_ignore("return_value_discarded")
+		DirAccess.make_dir_recursive_absolute(dir)
+	var save_err := img.save_png(output_path)
+	if save_err != OK:
+		_write_response({"id": req_id, "error": "save_png failed: %d" % save_err})
+		return
+	_write_response({"id": req_id, "path": output_path})
+
+
+func _write_response(payload: Dictionary) -> void:
+	var f := FileAccess.open(RESPONSE_PATH, FileAccess.WRITE)
+	if f == null:
+		return
+	f.store_string(JSON.stringify(payload))
+	f.close()
+
+

addons/agent_tools/runtime/game_bridge.gd.uid

@@ -0,0 +1 @@
+uid://cds186n8uv4f0

addons/agent_tools/server.gd

@@ -0,0 +1,125 @@
+@tool
+extends Node
+
+# Line-delimited JSON-RPC over TCP on localhost.
+# One request per line: {"id": <any>, "method": "<name>", "params": {...}}
+# One response per line: {"id": <echoed>, "result": <data>}  OR  {"id": ..., "error": {"code": int, "message": str, "data"?: any}}
+
+const MAX_MESSAGE_BYTES := 1_048_576  # 1 MiB per line — safety cap
+
+var _tcp: TCPServer
+var _clients: Array = []  # Array of {peer: StreamPeerTCP, buf: PackedByteArray}
+var _registry
+
+
+func _init(registry) -> void:
+	_registry = registry
+
+
+func start(port: int, interface: String = "127.0.0.1") -> bool:
+	_tcp = TCPServer.new()
+	var err := _tcp.listen(port, interface)
+	if err != OK:
+		_tcp = null
+		return false
+	set_process(true)
+	return true
+
+
+func stop() -> void:
+	set_process(false)
+	for c in _clients:
+		(c.peer as StreamPeerTCP).disconnect_from_host()
+	_clients.clear()
+	if _tcp:
+		_tcp.stop()
+		_tcp = null
+
+
+func _process(_delta: float) -> void:
+	if _tcp == null:
+		return
+
+	while _tcp.is_connection_available():
+		var peer := _tcp.take_connection()
+		_clients.append({"peer": peer, "buf": PackedByteArray()})
+
+	var still_alive: Array = []
+	for c in _clients:
+		var peer: StreamPeerTCP = c.peer
+		peer.poll()
+		if peer.get_status() != StreamPeerTCP.STATUS_CONNECTED:
+			continue
+		var available := peer.get_available_bytes()
+		if available > 0:
+			var chunk := peer.get_data(available)
+			if chunk[0] == OK:
+				c.buf.append_array(chunk[1])
+		_drain_messages(c)
+		if (c.buf as PackedByteArray).size() > MAX_MESSAGE_BYTES:
+			_send_error(peer, null, -32700, "message exceeds %d bytes" % MAX_MESSAGE_BYTES)
+			peer.disconnect_from_host()
+			continue
+		still_alive.append(c)
+	_clients = still_alive
+
+
+func _drain_messages(c: Dictionary) -> void:
+	while true:
+		var buf: PackedByteArray = c.buf
+		var nl := buf.find(0x0A)  # \n
+		if nl < 0:
+			return
+		var line_bytes := buf.slice(0, nl)
+		c.buf = buf.slice(nl + 1)
+		var line := line_bytes.get_string_from_utf8().strip_edges()
+		if line == "":
+			continue
+		_handle_line(c.peer, line)
+
+
+func _handle_line(peer: StreamPeerTCP, line: String) -> void:
+	var parsed = JSON.parse_string(line)
+	if typeof(parsed) != TYPE_DICTIONARY:
+		_send_error(peer, null, -32700, "parse error — expected JSON object")
+		return
+	var id = parsed.get("id")
+	var method: String = parsed.get("method", "")
+	var params: Dictionary = parsed.get("params", {})
+	if method == "":
+		_send_error(peer, id, -32600, "missing 'method'")
+		return
+
+	var result: Dictionary = _registry.dispatch(method, params)
+	# Guard against silent tool-module failures: when a tool's .gd file has a parse
+	# error, preload() returns null, calls on it produce no output, and dispatch
+	# returns its default {}. Surface that instead of sending {"result": null}.
+	if result.is_empty():
+		_send_error(peer, id, -32000,
+			"tool returned empty response — likely a parse error in the tool module. Check Godot's Output panel for the actual error.",
+			{"method": method})
+	elif result.has("error"):
+		var e: Dictionary = result.error
+		_send_error(peer, id, e.get("code", -32000), e.get("message", ""), e.get("data"))
+	elif result.has("data"):
+		_send_result(peer, id, result.data)
+	else:
+		_send_error(peer, id, -32000,
+			"tool returned malformed response (missing both 'data' and 'error')",
+			{"method": method})
+
+
+func _send_result(peer: StreamPeerTCP, id, data) -> void:
+	_write(peer, {"id": id, "result": data})
+
+
+func _send_error(peer: StreamPeerTCP, id, code: int, msg: String, data = null) -> void:
+	var err := {"code": code, "message": msg}
+	if data != null:
+		err["data"] = data
+	_write(peer, {"id": id, "error": err})
+
+
+func _write(peer: StreamPeerTCP, obj: Dictionary) -> void:
+	var line := JSON.stringify(obj) + "\n"
+	peer.put_data(line.to_utf8_buffer())

addons/agent_tools/server.gd.uid

@@ -0,0 +1 @@
+uid://pcfsf0ijlm8x

addons/agent_tools/tools/_coerce.gd

@@ -0,0 +1,306 @@
+@tool
+extends RefCounted
+
+# Shared JSON-to-Godot type coercion for scene.set_property, resource.set_property,
+# and any other tool that assigns a user-provided value into a typed property slot.
+#
+# Contract:
+#   coerce(value, target_type: int) -> Variant
+#
+#   Returns the coerced value on success. On mismatch, returns a Dictionary with
+#   a single "_error" key describing the failure — callers check `is Dictionary`
+#   and forward the message as a tool-level error.
+#
+# New types go here. Don't re-add `_coerce` to individual tool files; route
+# through Coerce.coerce() instead.
+
+static func coerce(value, target_type: int):
+	match target_type:
+		TYPE_BOOL:
+			# Godot 4 has no `bool()` constructor (it errors at runtime). Convert via
+			# truthiness, but parse strings explicitly so "false"/"0" don't read as
+			# truthy the way any non-empty string otherwise would.
+			if value is String:
+				return value.strip_edges().to_lower() in ["true", "1", "yes", "on"]
+			return true if value else false
+		TYPE_INT:
+			return int(value)
+		TYPE_FLOAT:
+			return float(value)
+		TYPE_STRING, TYPE_STRING_NAME:
+			return String(value)
+		TYPE_NODE_PATH:
+			return NodePath(String(value))
+		TYPE_VECTOR2:
+			if value is Array and value.size() == 2:
+				return Vector2(value[0], value[1])
+			return {"_error": "Vector2 expects [x, y]"}
+		TYPE_VECTOR2I:
+			if value is Array and value.size() == 2:
+				return Vector2i(int(value[0]), int(value[1]))
+			return {"_error": "Vector2i expects [x, y]"}
+		TYPE_VECTOR3:
+			if value is Array and value.size() == 3:
+				return Vector3(value[0], value[1], value[2])
+			return {"_error": "Vector3 expects [x, y, z]"}
+		TYPE_VECTOR3I:
+			if value is Array and value.size() == 3:
+				return Vector3i(int(value[0]), int(value[1]), int(value[2]))
+			return {"_error": "Vector3i expects [x, y, z]"}
+		TYPE_VECTOR4:
+			if value is Array and value.size() == 4:
+				return Vector4(value[0], value[1], value[2], value[3])
+			return {"_error": "Vector4 expects [x, y, z, w]"}
+		TYPE_VECTOR4I:
+			if value is Array and value.size() == 4:
+				return Vector4i(int(value[0]), int(value[1]), int(value[2]), int(value[3]))
+			return {"_error": "Vector4i expects [x, y, z, w]"}
+		TYPE_RECT2:
+			if value is Array and value.size() == 4:
+				return Rect2(value[0], value[1], value[2], value[3])
+			return {"_error": "Rect2 expects [x, y, width, height]"}
+		TYPE_RECT2I:
+			if value is Array and value.size() == 4:
+				return Rect2i(int(value[0]), int(value[1]), int(value[2]), int(value[3]))
+			return {"_error": "Rect2i expects [x, y, width, height]"}
+		TYPE_QUATERNION:
+			if value is Array and value.size() == 4:
+				return Quaternion(value[0], value[1], value[2], value[3])
+			return {"_error": "Quaternion expects [x, y, z, w]"}
+		TYPE_TRANSFORM2D:
+			# TRS form: {origin: [x,y], rotation: radians, scale: [x,y]} — all optional.
+			if value is Dictionary:
+				var origin = value.get("origin", [0, 0])
+				var rotation: float = float(value.get("rotation", 0.0))
+				var scale_v = value.get("scale", [1, 1])
+				var skew: float = float(value.get("skew", 0.0))
+				if not (origin is Array and origin.size() == 2 and scale_v is Array and scale_v.size() == 2):
+					return {"_error": "Transform2D origin/scale expect [x, y]"}
+				return Transform2D(
+					rotation,
+					Vector2(scale_v[0], scale_v[1]),
+					skew,
+					Vector2(origin[0], origin[1])
+				)
+			return {"_error": "Transform2D expects {origin: [x,y], rotation: radians, scale: [x,y], skew?}"}
+		TYPE_TRANSFORM3D:
+			# TRS form: {origin: [x,y,z], rotation: [x,y,z] euler radians, scale: [x,y,z]}.
+			if value is Dictionary:
+				var origin = value.get("origin", [0, 0, 0])
+				var rotation = value.get("rotation", [0, 0, 0])
+				var scale_v = value.get("scale", [1, 1, 1])
+				if not (origin is Array and origin.size() == 3
+						and rotation is Array and rotation.size() == 3
+						and scale_v is Array and scale_v.size() == 3):
+					return {"_error": "Transform3D origin/rotation/scale expect [x, y, z]"}
+				var basis := Basis.from_euler(Vector3(rotation[0], rotation[1], rotation[2]))
+				basis = basis.scaled(Vector3(scale_v[0], scale_v[1], scale_v[2]))
+				return Transform3D(basis, Vector3(origin[0], origin[1], origin[2]))
+			return {"_error": "Transform3D expects {origin: [x,y,z], rotation: [x,y,z] (euler rad), scale: [x,y,z]}"}
+		TYPE_BASIS:
+			if value is Dictionary:
+				var rotation = value.get("rotation", [0, 0, 0])
+				var scale_v = value.get("scale", [1, 1, 1])
+				if not (rotation is Array and rotation.size() == 3
+						and scale_v is Array and scale_v.size() == 3):
+					return {"_error": "Basis rotation/scale expect [x, y, z]"}
+				return Basis.from_euler(Vector3(rotation[0], rotation[1], rotation[2])).scaled(
+					Vector3(scale_v[0], scale_v[1], scale_v[2]))
+			return {"_error": "Basis expects {rotation: [x,y,z] (euler rad), scale: [x,y,z]}"}
+		TYPE_AABB:
+			if value is Dictionary:
+				var pos = value.get("position", [0, 0, 0])
+				var size = value.get("size", [0, 0, 0])
+				if not (pos is Array and pos.size() == 3 and size is Array and size.size() == 3):
+					return {"_error": "AABB position/size expect [x, y, z]"}
+				return AABB(Vector3(pos[0], pos[1], pos[2]), Vector3(size[0], size[1], size[2]))
+			return {"_error": "AABB expects {position: [x,y,z], size: [x,y,z]}"}
+		TYPE_PLANE:
+			if value is Dictionary:
+				var normal = value.get("normal", [0, 1, 0])
+				var d: float = float(value.get("d", 0.0))
+				if not (normal is Array and normal.size() == 3):
+					return {"_error": "Plane normal expects [x, y, z]"}
+				return Plane(Vector3(normal[0], normal[1], normal[2]), d)
+			return {"_error": "Plane expects {normal: [x,y,z], d: float}"}
+		TYPE_COLOR:
+			if value is Array and (value.size() == 3 or value.size() == 4):
+				var a := float(value[3]) if value.size() == 4 else 1.0
+				return Color(value[0], value[1], value[2], a)
+			if value is String:
+				return Color(value)
+			return {"_error": "Color expects [r,g,b(,a)] or '#rrggbb(aa)'"}
+		TYPE_PACKED_STRING_ARRAY:
+			if value is Array:
+				var out := PackedStringArray()
+				for s in value:
+					out.append(String(s))
+				return out
+			return {"_error": "PackedStringArray expects an array of strings"}
+		TYPE_PACKED_INT32_ARRAY:
+			if value is Array:
+				var out := PackedInt32Array()
+				for i in value:
+					out.append(int(i))
+				return out
+			return {"_error": "PackedInt32Array expects an array of numbers"}
+		TYPE_PACKED_INT64_ARRAY:
+			if value is Array:
+				var out := PackedInt64Array()
+				for i in value:
+					out.append(int(i))
+				return out
+			return {"_error": "PackedInt64Array expects an array of numbers"}
+		TYPE_PACKED_FLOAT32_ARRAY:
+			if value is Array:
+				var out := PackedFloat32Array()
+				for f in value:
+					out.append(float(f))
+				return out
+			return {"_error": "PackedFloat32Array expects an array of numbers"}
+		TYPE_PACKED_FLOAT64_ARRAY:
+			if value is Array:
+				var out := PackedFloat64Array()
+				for f in value:
+					out.append(float(f))
+				return out
+			return {"_error": "PackedFloat64Array expects an array of numbers"}
+		TYPE_PACKED_VECTOR2_ARRAY:
+			if value is Array:
+				var out := PackedVector2Array()
+				for v in value:
+					if v is Array and v.size() == 2:
+						out.append(Vector2(v[0], v[1]))
+					else:
+						return {"_error": "PackedVector2Array expects [[x, y], ...]"}
+				return out
+			return {"_error": "PackedVector2Array expects an array of [x, y] pairs"}
+		TYPE_PACKED_VECTOR3_ARRAY:
+			if value is Array:
+				var out := PackedVector3Array()
+				for v in value:
+					if v is Array and v.size() == 3:
+						out.append(Vector3(v[0], v[1], v[2]))
+					else:
+						return {"_error": "PackedVector3Array expects [[x, y, z], ...]"}
+				return out
+			return {"_error": "PackedVector3Array expects an array of [x, y, z] triples"}
+		TYPE_PACKED_COLOR_ARRAY:
+			if value is Array:
+				var out := PackedColorArray()
+				for c in value:
+					if c is Array and (c.size() == 3 or c.size() == 4):
+						var a := float(c[3]) if c.size() == 4 else 1.0
+						out.append(Color(c[0], c[1], c[2], a))
+					elif c is String:
+						out.append(Color(c))
+					else:
+						return {"_error": "PackedColorArray expects [[r,g,b(,a)], ...] or ['#hex', ...]"}
+				return out
+			return {"_error": "PackedColorArray expects an array of colors"}
+		TYPE_OBJECT:
+			# Auto-load a Resource when the caller passes a "res://..." or "uid://..." path string.
+			# Without this, Godot silently drops the assignment and leaves the slot null.
+			if value is String and (value.begins_with("res://") or value.begins_with("uid://")):
+				var loaded := ResourceLoader.load(value)
+				if loaded == null:
+					return {"_error": "failed to load resource: %s" % value}
+				return loaded
+			return value
+		_:
+			return value
+
+
+# Inverse of coerce(): convert a Godot value back to a JSON-native form so the
+# response echo is unambiguous data rather than Godot's str() stringification
+# (which turns Vector2 into "(x, y)", Color into "(r, g, b, a)", null Object
+# into "<Object#null>", etc., all of which look like success strings).
+static func to_json(value):
+	match typeof(value):
+		TYPE_VECTOR2:
+			return [value.x, value.y]
+		TYPE_VECTOR2I:
+			return [int(value.x), int(value.y)]
+		TYPE_VECTOR3:
+			return [value.x, value.y, value.z]
+		TYPE_VECTOR3I:
+			return [int(value.x), int(value.y), int(value.z)]
+		TYPE_VECTOR4:
+			return [value.x, value.y, value.z, value.w]
+		TYPE_VECTOR4I:
+			return [int(value.x), int(value.y), int(value.z), int(value.w)]
+		TYPE_RECT2:
+			return [value.position.x, value.position.y, value.size.x, value.size.y]
+		TYPE_RECT2I:
+			return [int(value.position.x), int(value.position.y), int(value.size.x), int(value.size.y)]
+		TYPE_COLOR:
+			return [value.r, value.g, value.b, value.a]
+		TYPE_QUATERNION:
+			return [value.x, value.y, value.z, value.w]
+		TYPE_NODE_PATH:
+			return String(value)
+		TYPE_STRING_NAME:
+			return String(value)
+		TYPE_TRANSFORM2D:
+			return {
+				"origin": [value.origin.x, value.origin.y],
+				"x": [value.x.x, value.x.y],
+				"y": [value.y.x, value.y.y],
+			}
+		TYPE_TRANSFORM3D:
+			return {
+				"origin": [value.origin.x, value.origin.y, value.origin.z],
+				"basis": to_json(value.basis),
+			}
+		TYPE_BASIS:
+			return [
+				[value.x.x, value.x.y, value.x.z],
+				[value.y.x, value.y.y, value.y.z],
+				[value.z.x, value.z.y, value.z.z],
+			]
+		TYPE_AABB:
+			return {
+				"position": [value.position.x, value.position.y, value.position.z],
+				"size": [value.size.x, value.size.y, value.size.z],
+			}
+		TYPE_PLANE:
+			return {
+				"normal": [value.normal.x, value.normal.y, value.normal.z],
+				"d": value.d,
+			}
+		TYPE_OBJECT:
+			if value == null:
+				return null
+			if value is Resource and value.resource_path != "":
+				return {"class": value.get_class(), "resource_path": value.resource_path}
+			return {"class": (value as Object).get_class()}
+		TYPE_PACKED_BYTE_ARRAY, TYPE_PACKED_INT32_ARRAY, TYPE_PACKED_INT64_ARRAY, \
+		TYPE_PACKED_FLOAT32_ARRAY, TYPE_PACKED_FLOAT64_ARRAY, TYPE_PACKED_STRING_ARRAY:
+			return Array(value)
+		TYPE_PACKED_VECTOR2_ARRAY:
+			var out_v2: Array = []
+			for v in value:
+				out_v2.append([v.x, v.y])
+			return out_v2
+		TYPE_PACKED_VECTOR3_ARRAY:
+			var out_v3: Array = []
+			for v in value:
+				out_v3.append([v.x, v.y, v.z])
+			return out_v3
+		TYPE_PACKED_COLOR_ARRAY:
+			var out_c: Array = []
+			for c in value:
+				out_c.append([c.r, c.g, c.b, c.a])
+			return out_c
+		TYPE_ARRAY:
+			var out_a: Array = []
+			for item in value:
+				out_a.append(to_json(item))
+			return out_a
+		TYPE_DICTIONARY:
+			var out_d: Dictionary = {}
+			for k in value:
+				out_d[str(k)] = to_json(value[k])
+			return out_d
+		_:
+			return value

addons/agent_tools/tools/_coerce.gd.uid

@@ -0,0 +1 @@
+uid://cncjf8g7jufrc

addons/agent_tools/tools/animation_tools.gd

@@ -0,0 +1,210 @@
+@tool
+extends RefCounted
+
+# Tools for working with AnimationPlayer nodes in the currently-edited scene.
+# Animations live in AnimationLibrary resources attached to the player; the "" library
+# is the default, named libraries prefix animations as "lib/anim".
+
+# animation.list — list animations on an AnimationPlayer with their tracks.
+# Params: {node_path}
+static func list_animations(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	if node_path == "":
+		return _err(-32602, "missing 'node_path'")
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	if not (node is AnimationPlayer):
+		return _err(-32602, "node is not an AnimationPlayer: %s (%s)" % [node_path, node.get_class()])
+	var ap: AnimationPlayer = node
+
+	var out: Array = []
+	for lib_name in ap.get_animation_library_list():
+		var lib: AnimationLibrary = ap.get_animation_library(lib_name)
+		for anim_name in lib.get_animation_list():
+			var anim: Animation = lib.get_animation(anim_name)
+			var full_name: String
+			if String(lib_name) == "":
+				full_name = String(anim_name)
+			else:
+				full_name = "%s/%s" % [lib_name, anim_name]
+			var tracks: Array = []
+			for i in anim.get_track_count():
+				tracks.append({
+					"index": i,
+					"type": _track_type_name(anim.track_get_type(i)),
+					"path": String(anim.track_get_path(i)),
+					"key_count": anim.track_get_key_count(i),
+				})
+			out.append({
+				"name": full_name,
+				"length": anim.length,
+				"loop_mode": anim.loop_mode,
+				"step": anim.step,
+				"tracks": tracks,
+			})
+	return _ok({"node_path": node_path, "animations": out})
+
+
+# animation.add_animation — create an empty animation in the player's library.
+# Params: {node_path, name, length?: 1.0, library?: ""}
+static func add_animation(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var anim_name: String = params.get("name", "")
+	var length: float = float(params.get("length", 1.0))
+	var library_name: String = params.get("library", "")
+	if node_path == "" or anim_name == "":
+		return _err(-32602, "missing 'node_path' or 'name'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	if not (node is AnimationPlayer):
+		return _err(-32602, "node is not an AnimationPlayer: %s (%s)" % [node_path, node.get_class()])
+	var ap: AnimationPlayer = node
+
+	var lib: AnimationLibrary
+	if ap.has_animation_library(library_name):
+		lib = ap.get_animation_library(library_name)
+	else:
+		lib = AnimationLibrary.new()
+		var add_err: int = ap.add_animation_library(library_name, lib)
+		if add_err != OK:
+			return _err(-32001, "add_animation_library failed: %d" % add_err)
+
+	if lib.has_animation(anim_name):
+		return _err(-32602, "animation already exists: %s" % anim_name)
+
+	var anim := Animation.new()
+	anim.length = length
+	@warning_ignore("return_value_discarded")
+	lib.add_animation(anim_name, anim)
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({"name": anim_name, "library": library_name, "length": length})
+
+
+# animation.remove_animation — delete an animation from the player.
+# Params: {node_path, name, library?: ""}
+static func remove_animation(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var anim_name: String = params.get("name", "")
+	var library_name: String = params.get("library", "")
+	if node_path == "" or anim_name == "":
+		return _err(-32602, "missing 'node_path' or 'name'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	if not (node is AnimationPlayer):
+		return _err(-32602, "node is not an AnimationPlayer")
+	var ap: AnimationPlayer = node
+
+	if not ap.has_animation_library(library_name):
+		return _err(-32001, "library not found: '%s'" % library_name)
+	var lib: AnimationLibrary = ap.get_animation_library(library_name)
+	if not lib.has_animation(anim_name):
+		return _err(-32001, "animation not found: %s" % anim_name)
+	lib.remove_animation(anim_name)
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({"removed": anim_name, "library": library_name})
+
+
+# animation.add_value_track — add a value track that animates a property over time.
+# target_node is resolved relative to the scene root (simpler than the
+# AnimationPlayer.root_node-relative resolution, which is fiddly).
+# Params: {node_path, animation, target_node, property, keyframes: [{time, value, easing?}]}
+static func add_value_track(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var anim_name: String = params.get("animation", "")
+	var target_node: String = params.get("target_node", "")
+	var property_name: String = params.get("property", "")
+	var keyframes: Array = params.get("keyframes", [])
+
+	if node_path == "" or anim_name == "" or target_node == "" or property_name == "":
+		return _err(-32602, "missing 'node_path', 'animation', 'target_node', or 'property'")
+	if keyframes.is_empty():
+		return _err(-32602, "'keyframes' must contain at least one entry")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	if not (node is AnimationPlayer):
+		return _err(-32602, "node is not an AnimationPlayer")
+	var ap: AnimationPlayer = node
+
+	if not ap.has_animation(anim_name):
+		return _err(-32001, "animation not found on this player: %s" % anim_name)
+	var anim: Animation = ap.get_animation(anim_name)
+
+	# Validate that the target resolves from the scene root (a simpler contract
+	# than AP.root_node-relative — callers think in scene-tree terms already).
+	if root.get_node_or_null(target_node) == null:
+		return _err(-32001, "target_node does not resolve from scene root: %s" % target_node)
+
+	var track_idx: int = anim.add_track(Animation.TYPE_VALUE)
+	anim.track_set_path(track_idx, NodePath("%s:%s" % [target_node, property_name]))
+
+	var max_time: float = 0.0
+	for kf in keyframes:
+		if typeof(kf) != TYPE_DICTIONARY or not kf.has("time") or not kf.has("value"):
+			return _err(-32602, "each keyframe needs {time, value}")
+		var t: float = float(kf.time)
+		var transition: float = float(kf.get("easing", 1.0))
+		anim.track_insert_key(track_idx, t, kf.value, transition)
+		if t > max_time:
+			max_time = t
+
+	if max_time > anim.length:
+		anim.length = max_time
+
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"animation": anim_name,
+		"track_index": track_idx,
+		"target": "%s:%s" % [target_node, property_name],
+		"keyframes_added": keyframes.size(),
+	})
+
+
+static func _track_type_name(t: int) -> String:
+	match t:
+		Animation.TYPE_VALUE:
+			return "value"
+		Animation.TYPE_POSITION_3D:
+			return "position_3d"
+		Animation.TYPE_ROTATION_3D:
+			return "rotation_3d"
+		Animation.TYPE_SCALE_3D:
+			return "scale_3d"
+		Animation.TYPE_BLEND_SHAPE:
+			return "blend_shape"
+		Animation.TYPE_METHOD:
+			return "method"
+		Animation.TYPE_BEZIER:
+			return "bezier"
+		Animation.TYPE_AUDIO:
+			return "audio"
+		Animation.TYPE_ANIMATION:
+			return "animation"
+		_:
+			return "unknown(%d)" % t
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/animation_tools.gd.uid

@@ -0,0 +1 @@
+uid://kurfdxg67ggk

addons/agent_tools/tools/client_tools.gd

@@ -0,0 +1,296 @@
+@tool
+extends RefCounted
+
+# client.* — manage MCP client config files so users don't have to hand-edit them.
+# Each client has its own config schema; we handle three shapes:
+#   "mcp_servers"           → {"mcpServers": {"<name>": {command, args}}}
+#                             Used by Claude Code, Claude Desktop, Cursor, Windsurf.
+#   "vscode_servers"        → {"servers": {"<name>": {command, args}}}
+#                             VS Code's native MCP config.
+#   "continue_experimental" → {"experimental": {"modelContextProtocolServers":
+#                                [{"transport": {"type": "stdio", command, args}}]}}
+#                             Continue.dev's MCP config shape (array, not dict).
+#
+# Clients requiring JSONC (with comments) or non-file storage — Zed, VS Code
+# user-scope settings.json, Cline — aren't supported yet. Use manual config
+# for those; see the README per-client section.
+
+const SERVER_NAME := "godot-agent-tools"
+const SERVER_COMMAND := "npx"
+const SERVER_ARGS := ["-y", "godot-agent-tools-mcp"]
+
+
+static func list_clients(_params: Dictionary) -> Dictionary:
+	var out: Array = []
+	for client_id in _client_ids():
+		var info := _client_info(client_id)
+		if info.has("_error"):
+			out.append({"client": client_id, "error": info._error})
+			continue
+		var res := _read_config(info.path)
+		var cfg: Dictionary = res.cfg
+		var installed := _has_server_entry(cfg, info.format)
+		out.append({
+			"client": client_id,
+			"config_path": info.path,
+			"exists": _path_exists(info.path),
+			"configured": installed,
+			"unparseable": res.unparseable,
+		})
+	return _ok({"clients": out})
+
+
+static func configure(params: Dictionary) -> Dictionary:
+	var client_id: String = params.get("client", "")
+	var overwrite: bool = params.get("overwrite", false)
+	if client_id == "":
+		return _err(-32602, "missing 'client' (supported: %s)" % ", ".join(_client_ids()))
+	var info := _client_info(client_id)
+	if info.has("_error"):
+		return _err(-32602, info._error)
+
+	var res := _read_config(info.path)
+	if res.unparseable:
+		return _err(-32001, "existing config is not valid JSON — refusing to overwrite (fix or remove it first): %s" % info.path)
+	var cfg: Dictionary = res.cfg
+	if _has_server_entry(cfg, info.format) and not overwrite:
+		return _ok({"client": client_id, "path": info.path, "status": "already_configured"})
+
+	_set_server_entry(cfg, info.format)
+	var write_err := _write_config(info.path, cfg)
+	if write_err != "":
+		return _err(-32001, write_err)
+	return _ok({"client": client_id, "path": info.path, "status": "configured"})
+
+
+static func remove(params: Dictionary) -> Dictionary:
+	var client_id: String = params.get("client", "")
+	if client_id == "":
+		return _err(-32602, "missing 'client'")
+	var info := _client_info(client_id)
+	if info.has("_error"):
+		return _err(-32602, info._error)
+
+	var res := _read_config(info.path)
+	if res.unparseable:
+		return _err(-32001, "existing config is not valid JSON — refusing to modify (fix or remove it first): %s" % info.path)
+	var cfg: Dictionary = res.cfg
+	if not _has_server_entry(cfg, info.format):
+		return _ok({"client": client_id, "path": info.path, "status": "not_present"})
+
+	_clear_server_entry(cfg, info.format)
+	var write_err := _write_config(info.path, cfg)
+	if write_err != "":
+		return _err(-32001, write_err)
+	return _ok({"client": client_id, "path": info.path, "status": "removed"})
+
+
+static func _client_ids() -> Array:
+	return [
+		"claude_code_project",
+		"claude_code_user",
+		"claude_desktop",
+		"cursor_project",
+		"cursor_user",
+		"windsurf_user",
+		"continue_user",
+		"vscode_project",
+	]
+
+
+static func _client_info(client_id: String) -> Dictionary:
+	var home := OS.get_environment("USERPROFILE")
+	if home == "":
+		home = OS.get_environment("HOME")
+	if home == "":
+		return {"_error": "cannot resolve home directory (neither USERPROFILE nor HOME set)"}
+
+	match client_id:
+		"claude_code_project":
+			return {"path": ProjectSettings.globalize_path("res://.mcp.json"), "format": "mcp_servers"}
+		"claude_code_user":
+			return {"path": home.path_join(".claude.json"), "format": "mcp_servers"}
+		"cursor_project":
+			return {"path": ProjectSettings.globalize_path("res://.cursor/mcp.json"), "format": "mcp_servers"}
+		"cursor_user":
+			return {"path": home.path_join(".cursor").path_join("mcp.json"), "format": "mcp_servers"}
+		"windsurf_user":
+			return {"path": home.path_join(".codeium").path_join("windsurf").path_join("mcp_config.json"), "format": "mcp_servers"}
+		"continue_user":
+			return {"path": home.path_join(".continue").path_join("config.json"), "format": "continue_experimental"}
+		"vscode_project":
+			return {"path": ProjectSettings.globalize_path("res://.vscode/mcp.json"), "format": "vscode_servers"}
+		"claude_desktop":
+			var os_name := OS.get_name()
+			var path: String
+			if os_name == "macOS":
+				path = home.path_join("Library").path_join("Application Support").path_join("Claude").path_join("claude_desktop_config.json")
+			elif os_name == "Windows":
+				var appdata := OS.get_environment("APPDATA")
+				if appdata == "":
+					return {"_error": "APPDATA env var not set on Windows"}
+				path = appdata.path_join("Claude").path_join("claude_desktop_config.json")
+			else:
+				path = home.path_join(".config").path_join("Claude").path_join("claude_desktop_config.json")
+			return {"path": path, "format": "mcp_servers"}
+		_:
+			return {"_error": "unknown client: %s (supported: %s)" % [client_id, ", ".join(_client_ids())]}
+
+
+static func _path_exists(path: String) -> bool:
+	return FileAccess.file_exists(path)
+
+
+# Returns {"cfg": Dictionary, "unparseable": bool}. unparseable=true means the
+# file exists with non-empty content that is NOT a valid JSON object — callers
+# that go on to WRITE must abort, since merging into {} would wipe the user's
+# data (e.g. a large ~/.claude.json with a transient syntax error, or a JSONC
+# file with comments that JSON.parse_string can't handle).
+static func _read_config(path: String) -> Dictionary:
+	var content := ""
+	if _path_exists(path):
+		var f := FileAccess.open(path, FileAccess.READ)
+		if f:
+			content = f.get_as_text()
+			f.close()
+	if content.strip_edges() == "":
+		return {"cfg": {}, "unparseable": false}
+	var parsed = JSON.parse_string(content)
+	if typeof(parsed) != TYPE_DICTIONARY:
+		return {"cfg": {}, "unparseable": true}
+	return {"cfg": parsed, "unparseable": false}
+
+
+static func _write_config(path: String, cfg: Dictionary) -> String:
+	var dir_path := path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			return "mkdir failed for %s (%d)" % [dir_path, derr]
+	# Back up any existing non-empty file before overwriting, so a mistaken merge
+	# or an interrupted write is recoverable.
+	if FileAccess.file_exists(path):
+		var prev := FileAccess.open(path, FileAccess.READ)
+		if prev:
+			var prev_content := prev.get_as_text()
+			prev.close()
+			if prev_content.strip_edges() != "":
+				var bak := FileAccess.open(path + ".bak", FileAccess.WRITE)
+				if bak:
+					bak.store_string(prev_content)
+					bak.close()
+	var f := FileAccess.open(path, FileAccess.WRITE)
+	if f == null:
+		return "could not open for write: %s (error %d)" % [path, FileAccess.get_open_error()]
+	f.store_string(JSON.stringify(cfg, "  "))
+	f.close()
+	return ""
+
+
+# --- Format-specific readers/writers -----------------------------------------
+
+static func _has_server_entry(cfg: Dictionary, format: String) -> bool:
+	match format:
+		"mcp_servers":
+			var servers = cfg.get("mcpServers")
+			return typeof(servers) == TYPE_DICTIONARY and (servers as Dictionary).has(SERVER_NAME)
+		"vscode_servers":
+			var servers = cfg.get("servers")
+			return typeof(servers) == TYPE_DICTIONARY and (servers as Dictionary).has(SERVER_NAME)
+		"continue_experimental":
+			var exp = cfg.get("experimental")
+			if typeof(exp) != TYPE_DICTIONARY:
+				return false
+			var arr = exp.get("modelContextProtocolServers")
+			if typeof(arr) != TYPE_ARRAY:
+				return false
+			for entry in arr:
+				if typeof(entry) == TYPE_DICTIONARY and _entry_matches_continue(entry):
+					return true
+			return false
+		_:
+			return false
+
+
+static func _set_server_entry(cfg: Dictionary, format: String) -> void:
+	match format:
+		"mcp_servers":
+			if typeof(cfg.get("mcpServers")) != TYPE_DICTIONARY:
+				cfg["mcpServers"] = {}
+			(cfg["mcpServers"] as Dictionary)[SERVER_NAME] = {
+				"command": SERVER_COMMAND,
+				"args": SERVER_ARGS.duplicate(),
+			}
+		"vscode_servers":
+			if typeof(cfg.get("servers")) != TYPE_DICTIONARY:
+				cfg["servers"] = {}
+			(cfg["servers"] as Dictionary)[SERVER_NAME] = {
+				"command": SERVER_COMMAND,
+				"args": SERVER_ARGS.duplicate(),
+			}
+		"continue_experimental":
+			if typeof(cfg.get("experimental")) != TYPE_DICTIONARY:
+				cfg["experimental"] = {}
+			var exp: Dictionary = cfg["experimental"]
+			if typeof(exp.get("modelContextProtocolServers")) != TYPE_ARRAY:
+				exp["modelContextProtocolServers"] = []
+			var arr: Array = exp["modelContextProtocolServers"]
+			# Remove any existing match so we don't duplicate.
+			var kept: Array = []
+			for entry in arr:
+				if typeof(entry) != TYPE_DICTIONARY or not _entry_matches_continue(entry):
+					kept.append(entry)
+			kept.append({
+				"transport": {
+					"type": "stdio",
+					"command": SERVER_COMMAND,
+					"args": SERVER_ARGS.duplicate(),
+				},
+			})
+			exp["modelContextProtocolServers"] = kept
+
+
+static func _clear_server_entry(cfg: Dictionary, format: String) -> void:
+	match format:
+		"mcp_servers":
+			var servers = cfg.get("mcpServers")
+			if typeof(servers) == TYPE_DICTIONARY:
+				(servers as Dictionary).erase(SERVER_NAME)
+		"vscode_servers":
+			var servers = cfg.get("servers")
+			if typeof(servers) == TYPE_DICTIONARY:
+				(servers as Dictionary).erase(SERVER_NAME)
+		"continue_experimental":
+			var exp = cfg.get("experimental")
+			if typeof(exp) != TYPE_DICTIONARY:
+				return
+			var arr = exp.get("modelContextProtocolServers")
+			if typeof(arr) != TYPE_ARRAY:
+				return
+			var kept: Array = []
+			for entry in arr:
+				if typeof(entry) != TYPE_DICTIONARY or not _entry_matches_continue(entry):
+					kept.append(entry)
+			exp["modelContextProtocolServers"] = kept
+
+
+# Continue's config uses a flat array with no `name` field — identify our entry
+# by the transport command+args combo.
+static func _entry_matches_continue(entry: Dictionary) -> bool:
+	var transport = entry.get("transport")
+	if typeof(transport) != TYPE_DICTIONARY:
+		return false
+	if transport.get("command") != SERVER_COMMAND:
+		return false
+	var a = transport.get("args")
+	if typeof(a) != TYPE_ARRAY or (a as Array).size() < 2:
+		return false
+	return a[1] == SERVER_ARGS[1]
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/client_tools.gd.uid

@@ -0,0 +1 @@
+uid://b3u1el0113l81

addons/agent_tools/tools/docs_tools.gd

@@ -0,0 +1,72 @@
+@tool
+extends RefCounted
+
+# docs.class_ref — return the public API of a Godot class so the agent can plan
+# work without guessing method/property/signal names.
+# Params: {class_name, include_inherited?: false}
+# Returns: {class, parent, methods: [{name, args, return}], properties, signals, constants}
+static func class_ref(params: Dictionary) -> Dictionary:
+	var cname: String = params.get("class_name", "")
+	var include_inherited: bool = params.get("include_inherited", false)
+	if cname == "":
+		return _err(-32602, "missing 'class_name'")
+	if not ClassDB.class_exists(cname):
+		return _err(-32602, "unknown class: %s" % cname)
+
+	var no_inheritance := not include_inherited
+
+	var methods: Array = []
+	for m in ClassDB.class_get_method_list(cname, no_inheritance):
+		# Skip internal / editor-only methods — they're noise for an agent.
+		if (m.flags as int) & METHOD_FLAG_OBJECT_CORE:
+			continue
+		var args: Array = []
+		for a in m.args:
+			args.append({"name": a.name, "type": type_string(a.type)})
+		methods.append({
+			"name": m.name,
+			"args": args,
+			"return": type_string(m.return.type) if m.has("return") else "void",
+			"virtual": bool((m.flags as int) & METHOD_FLAG_VIRTUAL),
+			"static": bool((m.flags as int) & METHOD_FLAG_STATIC),
+		})
+
+	var properties: Array = []
+	for p in ClassDB.class_get_property_list(cname, no_inheritance):
+		# Only user-facing properties (storage + editor). Internal group markers have usage=0.
+		if not ((p.usage as int) & PROPERTY_USAGE_EDITOR):
+			continue
+		properties.append({
+			"name": p.name,
+			"type": type_string(p.type),
+			"hint": p.get("hint_string", ""),
+		})
+
+	var signals: Array = []
+	for s in ClassDB.class_get_signal_list(cname, no_inheritance):
+		var args: Array = []
+		for a in s.args:
+			args.append({"name": a.name, "type": type_string(a.type)})
+		signals.append({"name": s.name, "args": args})
+
+	var constants: Array = []
+	for c in ClassDB.class_get_integer_constant_list(cname, no_inheritance):
+		constants.append({"name": c, "value": ClassDB.class_get_integer_constant(cname, c)})
+
+	return _ok({
+		"class": cname,
+		"parent": ClassDB.get_parent_class(cname),
+		"inherited_included": include_inherited,
+		"methods": methods,
+		"properties": properties,
+		"signals": signals,
+		"constants": constants,
+	})
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/docs_tools.gd.uid

@@ -0,0 +1 @@
+uid://dwarklg56vsim

addons/agent_tools/tools/editor_tools.gd

@@ -0,0 +1,201 @@
+@tool
+extends RefCounted
+
+# editor.reload_filesystem — trigger an editor filesystem rescan.
+# Run this after external file changes (created/moved/deleted by tools outside the editor)
+# so load() and the FileSystem dock reflect reality.
+static func reload_filesystem(_params: Dictionary) -> Dictionary:
+	EditorInterface.get_resource_filesystem().scan()
+	return {"data": {"scanned": true}}
+
+
+# editor.save_all_scenes — save every open edited scene.
+static func save_all_scenes(_params: Dictionary) -> Dictionary:
+	EditorInterface.save_all_scenes()
+	return {"data": {"saved": true}}
+
+
+# editor.state — consolidated editor + project status in one call.
+# Replaces piecewise scene.current + project.get_setting + etc.
+static func state(_params: Dictionary) -> Dictionary:
+	var version := Engine.get_version_info()
+	var version_str: String = "%d.%d.%d-%s" % [version.major, version.minor, version.patch, version.status]
+
+	var current_scene_path := ""
+	var current_scene_class := ""
+	var current_scene_name := ""
+	var root := EditorInterface.get_edited_scene_root()
+	if root != null:
+		current_scene_path = root.scene_file_path
+		current_scene_class = root.get_class()
+		current_scene_name = String(root.name)
+
+	var open_scenes: Array = []
+	for s in EditorInterface.get_open_scenes():
+		open_scenes.append(s)
+
+	var project_name := ""
+	if ProjectSettings.has_setting("application/config/name"):
+		project_name = str(ProjectSettings.get_setting("application/config/name"))
+
+	return {"data": {
+		"godot_version": version_str,
+		"project_name": project_name,
+		"current_scene": {
+			"path": current_scene_path,
+			"root_name": current_scene_name,
+			"root_class": current_scene_class,
+			"open": root != null,
+		},
+		"open_scenes": open_scenes,
+		"playing_scene": EditorInterface.is_playing_scene(),
+		"playing_scene_path": EditorInterface.get_playing_scene() if EditorInterface.is_playing_scene() else "",
+	}}
+
+
+# editor.selection_get — return the currently-selected nodes in the editor tree dock.
+# Useful for "operate on whatever I clicked" workflows.
+static func selection_get(_params: Dictionary) -> Dictionary:
+	var selection := EditorInterface.get_selection()
+	var root := EditorInterface.get_edited_scene_root()
+	var out: Array = []
+	for node in selection.get_selected_nodes():
+		var path_str := ""
+		if root != null and (node == root or root.is_ancestor_of(node)):
+			path_str = String(root.get_path_to(node))
+		out.append({
+			"name": String(node.name),
+			"class": node.get_class(),
+			"node_path": path_str,
+		})
+	return {"data": {"selected": out, "count": out.size()}}
+
+
+# editor.selection_set — select a specific set of nodes in the editor tree dock.
+# Params: {node_paths: ["Player", "Enemy"]}
+static func selection_set(params: Dictionary) -> Dictionary:
+	var paths: Array = params.get("node_paths", [])
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return {"error": {"code": -32001, "message": "no scene open"}}
+
+	var selection := EditorInterface.get_selection()
+	selection.clear()
+
+	var resolved: Array = []
+	var missing: Array = []
+	for p in paths:
+		var node: Node = root if p == "." else root.get_node_or_null(p)
+		if node == null:
+			missing.append(p)
+			continue
+		selection.add_node(node)
+		resolved.append(p)
+
+	if not missing.is_empty():
+		return {"error": {"code": -32001, "message": "nodes not found: %s" % str(missing)}}
+	return {"data": {"selected": resolved}}
+
+
+# editor.game_screenshot — capture the viewport of the currently-running game.
+# Works when the user has pressed F5 (or equivalent) and a game process is running
+# with our runtime bridge autoload registered. Writes a request file, polls for
+# the bridge to produce the PNG, returns the path.
+#
+# Params: {output?: "res://.godot/agent_tools/game.png", timeout_ms?: 5000}
+static func game_screenshot(params: Dictionary) -> Dictionary:
+	var output_path: String = params.get("output", "res://.godot/agent_tools/game_screenshot.png")
+	var timeout_ms: int = int(params.get("timeout_ms", 5000))
+
+	if not EditorInterface.is_playing_scene():
+		return {"error": {"code": -32001,
+			"message": "no game running — press F5 (or equivalent) to start the game, then call again. Alternative for arbitrary scenes: run.scene_headless with 'screenshot'."}}
+
+	var bridge_dir := "res://.godot/agent_tools/bridge"
+	if not DirAccess.dir_exists_absolute(bridge_dir):
+		var derr := DirAccess.make_dir_recursive_absolute(bridge_dir)
+		if derr != OK:
+			return {"error": {"code": -32001, "message": "mkdir failed: %d" % derr}}
+
+	# Wipe stale output so we can detect when the bridge has written fresh data.
+	if FileAccess.file_exists(output_path):
+		@warning_ignore("return_value_discarded")
+		DirAccess.remove_absolute(output_path)
+
+	var request_path := bridge_dir + "/request.json"
+	var request_id := str(Time.get_ticks_msec())
+	var req := {
+		"id": request_id,
+		"type": "screenshot",
+		"output": output_path,
+	}
+	var f := FileAccess.open(request_path, FileAccess.WRITE)
+	if f == null:
+		return {"error": {"code": -32001, "message": "could not write bridge request"}}
+	f.store_string(JSON.stringify(req))
+	f.close()
+
+	# Poll for response — bridge writes response.json with matching id when done.
+	var response_path := bridge_dir + "/response.json"
+	var deadline_usec: int = Time.get_ticks_usec() + timeout_ms * 1000
+	while Time.get_ticks_usec() < deadline_usec:
+		if FileAccess.file_exists(response_path):
+			var rf := FileAccess.open(response_path, FileAccess.READ)
+			if rf:
+				var body := rf.get_as_text()
+				rf.close()
+				var parsed = JSON.parse_string(body)
+				if typeof(parsed) == TYPE_DICTIONARY and parsed.get("id", "") == request_id:
+					@warning_ignore("return_value_discarded")
+					DirAccess.remove_absolute(response_path)
+					if parsed.has("error"):
+						return {"error": {"code": -32001, "message": "bridge: %s" % parsed.error}}
+					return {"data": {
+						"path": output_path,
+						"captured": FileAccess.file_exists(output_path),
+					}}
+		OS.delay_msec(50)
+
+	# Clean up stale request if bridge never picked it up.
+	if FileAccess.file_exists(request_path):
+		@warning_ignore("return_value_discarded")
+		DirAccess.remove_absolute(request_path)
+	return {"error": {"code": -32001,
+		"message": "bridge timed out after %dms — is the running game using the _MCPGameBridge autoload? Re-enable the plugin to re-register it, then press F5 again." % timeout_ms}}
+
+
+# logs.read — pull recent log lines captured by the game-bridge autoload.
+# Params: {clear?: false, max_lines?: 200}
+static func logs_read(params: Dictionary) -> Dictionary:
+	var clear: bool = params.get("clear", false)
+	var max_lines: int = int(params.get("max_lines", 200))
+	var logs_path := "res://.godot/agent_tools/bridge/logs.json"
+	if not FileAccess.file_exists(logs_path):
+		return {"data": {
+			"entries": [],
+			"count": 0,
+			"note": "no log buffer found — the game may not be running or the autoload isn't initialized. Press F5 and try again.",
+		}}
+	var f := FileAccess.open(logs_path, FileAccess.READ)
+	if f == null:
+		return {"error": {"code": -32001, "message": "could not read logs"}}
+	var parsed = JSON.parse_string(f.get_as_text())
+	f.close()
+	if typeof(parsed) != TYPE_ARRAY:
+		parsed = []
+	var entries: Array = parsed
+	if entries.size() > max_lines:
+		entries = entries.slice(entries.size() - max_lines)
+	if clear:
+		@warning_ignore("return_value_discarded")
+		DirAccess.remove_absolute(logs_path)
+	return {"data": {"entries": entries, "count": entries.size()}}
+
+
+# logs.clear — drop the log buffer regardless of read state.
+static func logs_clear(_params: Dictionary) -> Dictionary:
+	var logs_path := "res://.godot/agent_tools/bridge/logs.json"
+	if FileAccess.file_exists(logs_path):
+		@warning_ignore("return_value_discarded")
+		DirAccess.remove_absolute(logs_path)
+	return {"data": {"cleared": true}}

addons/agent_tools/tools/editor_tools.gd.uid

@@ -0,0 +1 @@
+uid://bgoufu3l40rvx

addons/agent_tools/tools/fs_tools.gd

@@ -0,0 +1,144 @@
+@tool
+extends RefCounted
+
+# fs.list — enumerate project files by type, with optional glob filter.
+# Params: {type?: "all"|"scene"|"script"|"resource"|"shader"|"image"|"audio",
+#          glob?: "res://scenes/**/*.tscn",
+#          include_addons?: false}
+# Returns: {type, count, files: [paths]}
+static func list(params: Dictionary) -> Dictionary:
+	var type_filter: String = params.get("type", "all")
+	var glob: String = params.get("glob", "")
+	var include_addons: bool = params.get("include_addons", false)
+
+	var exts: Array
+	match type_filter:
+		"", "all":
+			exts = ["gd", "cs", "tscn", "tres", "res", "gdshader", "gdshaderinc",
+				"png", "jpg", "jpeg", "svg", "webp",
+				"ogg", "wav", "mp3",
+				"json", "cfg"]
+		"scene":
+			exts = ["tscn"]
+		"script":
+			exts = ["gd", "cs"]
+		"resource":
+			exts = ["tres", "res"]
+		"shader":
+			exts = ["gdshader", "gdshaderinc"]
+		"image":
+			exts = ["png", "jpg", "jpeg", "svg", "webp"]
+		"audio":
+			exts = ["ogg", "wav", "mp3"]
+		_:
+			return _err(-32602, "unknown type: %s (use all|scene|script|resource|shader|image|audio)" % type_filter)
+
+	var files: Array = []
+	_walk("res://", exts, files, include_addons)
+
+	if glob != "":
+		var filtered: Array = []
+		for f in files:
+			if f.matchn(glob):  # case-insensitive glob match
+				filtered.append(f)
+		files = filtered
+
+	files.sort()
+	return _ok({
+		"type": type_filter,
+		"count": files.size(),
+		"files": files,
+	})
+
+
+# fs.read_text — read a text file under res://. Complement to user_fs.read.
+# Params: {path}
+static func read_text(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	if path == "":
+		return _err(-32602, "missing 'path'")
+	if not path.begins_with("res://"):
+		return _err(-32602, "path must begin with 'res://' (use user_fs.read for user:// files)")
+	if not _within_sandbox(path, "res://"):
+		return _err(-32602, "path escapes the res:// project sandbox ('..' traversal not allowed): %s" % path)
+	var f := FileAccess.open(path, FileAccess.READ)
+	if f == null:
+		return _err(-32001, "failed to open %s (error %d)" % [path, FileAccess.get_open_error()])
+	var size_bytes := f.get_length()
+	var content := f.get_as_text()
+	f.close()
+	return _ok({"path": path, "content": content, "size_bytes": size_bytes})
+
+
+# fs.write_text — write a text file under res://. Creates parent directories
+# if needed. Triggers the editor's filesystem rescan so the new file shows up
+# in the FileSystem dock.
+# Params: {path, content, overwrite?: false}
+static func write_text(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var content: String = str(params.get("content", ""))
+	var overwrite: bool = params.get("overwrite", false)
+	if path == "":
+		return _err(-32602, "missing 'path'")
+	if not path.begins_with("res://"):
+		return _err(-32602, "path must begin with 'res://'")
+	if not _within_sandbox(path, "res://"):
+		return _err(-32602, "path escapes the res:// project sandbox ('..' traversal not allowed): %s" % path)
+	if FileAccess.file_exists(path) and not overwrite:
+		return _err(-32602, "file exists (pass overwrite:true to replace): %s" % path)
+
+	var dir_path := path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			return _err(-32001, "mkdir failed (%d): %s" % [derr, dir_path])
+
+	var f := FileAccess.open(path, FileAccess.WRITE)
+	if f == null:
+		return _err(-32001, "could not open for write: %s" % path)
+	f.store_string(content)
+	f.close()
+	EditorInterface.get_resource_filesystem().update_file(path)
+	return _ok({"path": path, "bytes_written": content.length()})
+
+
+static func _walk(dir_path: String, exts: Array, out: Array, include_addons: bool) -> void:
+	var d := DirAccess.open(dir_path)
+	if d == null:
+		return
+	d.list_dir_begin()
+	while true:
+		var name := d.get_next()
+		if name == "":
+			break
+		if name.begins_with("."):
+			continue
+		var full := dir_path.path_join(name)
+		if d.current_is_dir():
+			if not include_addons and full == "res://addons/agent_tools":
+				continue  # always skip our own addon
+			_walk(full, exts, out, include_addons)
+		else:
+			for e in exts:
+				if name.ends_with("." + e):
+					out.append(full)
+					break
+	d.list_dir_end()
+
+
+# Path-traversal guard. `begins_with("res://")` is NOT a sandbox — Godot resolves
+# `..` segments against the real filesystem, so "res://../../etc/x" escapes the
+# project. Globalize to an absolute path, collapse `..`, and confirm the result
+# stays inside the (globalized, collapsed) prefix root.
+static func _within_sandbox(path: String, prefix: String) -> bool:
+	var root := ProjectSettings.globalize_path(prefix).simplify_path().trim_suffix("/")
+	var abs := ProjectSettings.globalize_path(path).simplify_path()
+	return abs == root or abs.begins_with(root + "/")
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/fs_tools.gd.uid

@@ -0,0 +1 @@
+uid://dxq0mo7kx65wd

addons/agent_tools/tools/input_tools.gd

@@ -0,0 +1,243 @@
+@tool
+extends RefCounted
+
+# input_map.add_action — register a new input action in project.godot.
+# Params: {name, deadzone?: 0.5}
+static func add_action(params: Dictionary) -> Dictionary:
+	var action_name: String = params.get("name", "")
+	if action_name == "":
+		return _err(-32602, "missing 'name'")
+	var deadzone: float = float(params.get("deadzone", 0.5))
+	var key := "input/" + action_name
+	if ProjectSettings.has_setting(key):
+		return _err(-32602, "action already exists: %s" % action_name)
+	ProjectSettings.set_setting(key, {
+		"deadzone": deadzone,
+		"events": [],
+	})
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "save failed: %d" % err)
+	# Keep the runtime InputMap in sync with the on-disk project settings —
+	# ProjectSettings.save() only writes the file; it doesn't register actions
+	# with InputMap until editor restart.
+	if not InputMap.has_action(action_name):
+		InputMap.add_action(action_name, deadzone)
+	return _ok({"added": action_name})
+
+
+# input_map.add_event — attach an input event to an existing action.
+# Supported event shapes (pick one via 'type'):
+#   {type: "key",          keycode: "A" | "Space" | "F1" ...,  physical?: true}
+#   {type: "mouse_button", button_index: 1 (left) | 2 (right) | 3 (middle)}
+#   {type: "joy_button",   button_index: 0..}
+# Params: {action, event: <shape above>}
+static func add_event(params: Dictionary) -> Dictionary:
+	var action_name: String = params.get("action", "")
+	var event_spec: Dictionary = params.get("event", {})
+	if action_name == "":
+		return _err(-32602, "missing 'action'")
+	if event_spec.is_empty():
+		return _err(-32602, "missing 'event'")
+	var key := "input/" + action_name
+	if not ProjectSettings.has_setting(key):
+		return _err(-32001, "action not found: %s" % action_name)
+
+	var event := _build_event(event_spec)
+	if event == null:
+		return _err(-32602, "invalid event spec — see tool description for supported shapes")
+
+	var current: Dictionary = ProjectSettings.get_setting(key)
+	var events_arr: Array = current.get("events", [])
+	events_arr.append(event)
+	current["events"] = events_arr
+	ProjectSettings.set_setting(key, current)
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "save failed: %d" % err)
+	# Sync InputMap so Input.is_action_pressed() etc. see the event without restart.
+	if InputMap.has_action(action_name):
+		InputMap.action_add_event(action_name, event)
+	return _ok({"action": action_name, "event": event_spec})
+
+
+# input_map.list — return registered input actions with their events.
+# Params: {include_builtins?: false}
+# Defaults to user-defined only (parses the [input] section of project.godot,
+# which contains only user overrides — Godot's ~90 ui_* builtins live in-memory).
+# When include_builtins, falls back to InputMap which has the full union.
+static func list_actions(params: Dictionary) -> Dictionary:
+	var include_builtins: bool = params.get("include_builtins", false)
+	var items: Array = []
+
+	if include_builtins:
+		for a in InputMap.get_actions():
+			var described: Array = []
+			for e in InputMap.action_get_events(a):
+				described.append(_describe_event(e))
+			items.append({
+				"name": String(a),
+				"deadzone": InputMap.action_get_deadzone(a),
+				"events": described,
+			})
+	else:
+		# Read straight from project.godot so newly-added actions show up even
+		# if they haven't been registered with the runtime InputMap yet.
+		var cf := ConfigFile.new()
+		var err := cf.load("res://project.godot")
+		if err == OK and cf.has_section("input"):
+			for action_name in cf.get_section_keys("input"):
+				var value: Dictionary = cf.get_value("input", action_name)
+				var described: Array = []
+				for e in value.get("events", []):
+					described.append(_describe_event(e))
+				items.append({
+					"name": action_name,
+					"deadzone": value.get("deadzone", 0.5),
+					"events": described,
+				})
+
+	return _ok({"actions": items})
+
+
+# input_map.remove_event — remove an event from an action by index.
+# Call input_map.list first to see indices; events are listed in the order they
+# were added.
+# Params: {action, event_index}
+static func remove_event(params: Dictionary) -> Dictionary:
+	var action_name: String = params.get("action", "")
+	if action_name == "":
+		return _err(-32602, "missing 'action'")
+	if not params.has("event_index"):
+		return _err(-32602, "missing 'event_index'")
+	var idx: int = int(params.event_index)
+	var key := "input/" + action_name
+	if not ProjectSettings.has_setting(key):
+		return _err(-32001, "action not found: %s" % action_name)
+	var current: Dictionary = ProjectSettings.get_setting(key)
+	var events_arr: Array = current.get("events", [])
+	if idx < 0 or idx >= events_arr.size():
+		return _err(-32602, "event_index %d out of range (0..%d)" % [idx, events_arr.size() - 1])
+	var removed_event = events_arr[idx]
+	events_arr.remove_at(idx)
+	current["events"] = events_arr
+	ProjectSettings.set_setting(key, current)
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "save failed: %d" % err)
+	if InputMap.has_action(action_name) and removed_event != null:
+		InputMap.action_erase_event(action_name, removed_event)
+	return _ok({"action": action_name, "removed_index": idx})
+
+
+# input_map.remove_action — delete a user-registered action.
+static func remove_action(params: Dictionary) -> Dictionary:
+	var action_name: String = params.get("name", "")
+	if action_name == "":
+		return _err(-32602, "missing 'name'")
+	var key := "input/" + action_name
+	if not ProjectSettings.has_setting(key):
+		return _err(-32001, "action not found: %s" % action_name)
+	ProjectSettings.clear(key)
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "save failed: %d" % err)
+	if InputMap.has_action(action_name):
+		InputMap.erase_action(action_name)
+	return _ok({"removed": action_name})
+
+
+static func _build_event(spec: Dictionary) -> InputEvent:
+	# device defaults to -1 (ALL_DEVICES) matching the editor's "All Devices" default.
+	# For local multiplayer bind device=0, device=1, etc. to distinguish controllers.
+	var device: int = int(spec.get("device", -1))
+	match spec.get("type", ""):
+		"key":
+			var e := InputEventKey.new()
+			e.device = device
+			var kc_raw = spec.get("keycode", "")
+			var keycode := 0
+			if kc_raw is int:
+				keycode = kc_raw
+			elif kc_raw is String:
+				keycode = OS.find_keycode_from_string(kc_raw)
+			if keycode == 0:
+				return null
+			if spec.get("physical", true):
+				e.physical_keycode = keycode
+			else:
+				e.keycode = keycode
+			return e
+		"mouse_button":
+			var e := InputEventMouseButton.new()
+			e.device = device
+			e.button_index = int(spec.get("button_index", 1))
+			return e
+		"joy_button":
+			var e := InputEventJoypadButton.new()
+			e.device = device
+			e.button_index = int(spec.get("button_index", 0))
+			return e
+		"joy_motion":
+			# axis accepts int 0..5 or one of:
+			#   "left_x" / "left_y" / "right_x" / "right_y" / "trigger_left" / "trigger_right"
+			# axis_value: -1.0 (full negative) to 1.0 (full positive); sign picks the direction
+			# that triggers the action.
+			var e := InputEventJoypadMotion.new()
+			e.device = device
+			e.axis = _coerce_axis(spec.get("axis", 0))
+			e.axis_value = float(spec.get("axis_value", 1.0))
+			return e
+		_:
+			return null
+
+
+static func _coerce_axis(v) -> int:
+	if v is int:
+		return v
+	if v is String:
+		match v:
+			"left_x":
+				return JOY_AXIS_LEFT_X
+			"left_y":
+				return JOY_AXIS_LEFT_Y
+			"right_x":
+				return JOY_AXIS_RIGHT_X
+			"right_y":
+				return JOY_AXIS_RIGHT_Y
+			"trigger_left":
+				return JOY_AXIS_TRIGGER_LEFT
+			"trigger_right":
+				return JOY_AXIS_TRIGGER_RIGHT
+	return 0
+
+
+static func _describe_event(e) -> Dictionary:
+	if e is InputEventKey:
+		var kc: int = e.physical_keycode if e.physical_keycode != 0 else e.keycode
+		return {
+			"type": "key",
+			"keycode": OS.get_keycode_string(kc),
+			"physical": e.physical_keycode != 0,
+			"device": e.device,
+		}
+	if e is InputEventMouseButton:
+		return {"type": "mouse_button", "button_index": e.button_index, "device": e.device}
+	if e is InputEventJoypadButton:
+		return {"type": "joy_button", "button_index": e.button_index, "device": e.device}
+	if e is InputEventJoypadMotion:
+		return {
+			"type": "joy_motion",
+			"axis": e.axis,
+			"axis_value": e.axis_value,
+			"device": e.device,
+		}
+	return {"type": "unknown", "class": (e as Object).get_class() if e else "null"}
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/input_tools.gd.uid

@@ -0,0 +1 @@
+uid://dp1m17i4hu7t1

addons/agent_tools/tools/performance_tools.gd

@@ -0,0 +1,56 @@
+@tool
+extends RefCounted
+
+# performance.monitors — read Godot's built-in performance monitors.
+# Params: {monitors?: [string]}   — specific monitor names, default = common set
+# Returns: {fps, frame_time_ms, process_time_ms, physics_time_ms, mem_static_mb,
+#           mem_dynamic_mb, objects, resources, nodes, draw_calls, ...}
+static func monitors(params: Dictionary) -> Dictionary:
+	var requested: Array = params.get("monitors", [])
+	var out: Dictionary = {}
+
+	# Default set — the monitors agents actually want for quick perf snapshots.
+	if requested.is_empty():
+		out["fps"] = Performance.get_monitor(Performance.TIME_FPS)
+		out["frame_time_ms"] = Performance.get_monitor(Performance.TIME_PROCESS) * 1000.0
+		out["physics_time_ms"] = Performance.get_monitor(Performance.TIME_PHYSICS_PROCESS) * 1000.0
+		out["mem_static_mb"] = Performance.get_monitor(Performance.MEMORY_STATIC) / 1048576.0
+		out["mem_static_max_mb"] = Performance.get_monitor(Performance.MEMORY_STATIC_MAX) / 1048576.0
+		out["object_count"] = int(Performance.get_monitor(Performance.OBJECT_COUNT))
+		out["resource_count"] = int(Performance.get_monitor(Performance.OBJECT_RESOURCE_COUNT))
+		out["node_count"] = int(Performance.get_monitor(Performance.OBJECT_NODE_COUNT))
+		out["orphan_node_count"] = int(Performance.get_monitor(Performance.OBJECT_ORPHAN_NODE_COUNT))
+		out["draw_calls"] = int(Performance.get_monitor(Performance.RENDER_TOTAL_DRAW_CALLS_IN_FRAME))
+	else:
+		for name in requested:
+			var enum_value := _resolve_monitor_name(String(name))
+			if enum_value == -1:
+				out[name] = null
+			else:
+				out[name] = Performance.get_monitor(enum_value)
+
+	return _ok({"monitors": out})
+
+
+# Map friendly strings to Performance.* enum values so callers don't have to
+# remember the integer IDs.
+static func _resolve_monitor_name(name: String) -> int:
+	match name:
+		"fps": return Performance.TIME_FPS
+		"frame_time": return Performance.TIME_PROCESS
+		"physics_time": return Performance.TIME_PHYSICS_PROCESS
+		"mem_static": return Performance.MEMORY_STATIC
+		"mem_static_max": return Performance.MEMORY_STATIC_MAX
+		"objects": return Performance.OBJECT_COUNT
+		"resources": return Performance.OBJECT_RESOURCE_COUNT
+		"nodes": return Performance.OBJECT_NODE_COUNT
+		"orphan_nodes": return Performance.OBJECT_ORPHAN_NODE_COUNT
+		"draw_calls": return Performance.RENDER_TOTAL_DRAW_CALLS_IN_FRAME
+		"audio_latency": return Performance.AUDIO_OUTPUT_LATENCY
+		"physics_2d_active_objects": return Performance.PHYSICS_2D_ACTIVE_OBJECTS
+		"physics_3d_active_objects": return Performance.PHYSICS_3D_ACTIVE_OBJECTS
+		_: return -1
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}

addons/agent_tools/tools/performance_tools.gd.uid

@@ -0,0 +1 @@
+uid://bijue5qgitvnk

addons/agent_tools/tools/physics_tools.gd

@@ -0,0 +1,139 @@
+@tool
+extends RefCounted
+
+# physics.autofit_collision_shape_2d — compute a CollisionShape2D sized to a
+# sibling/child Sprite2D or AnimatedSprite2D's visual bounds. Common pattern
+# that's tedious to set up by hand: you have a sprite, you want a rectangle or
+# circle collider that roughly matches it.
+#
+# Params: {
+#   node_path:         CollisionShape2D to fit (created if missing when create:true)
+#   source:            NodePath to a Sprite2D / AnimatedSprite2D (auto-detected
+#                      among siblings if omitted)
+#   shape:             "rectangle" | "circle" | "capsule"  (default "rectangle")
+#   margin:            float pixels to shrink by (default 0)
+#   create:            bool — if true and node_path doesn't exist, create it as
+#                      a child of the source's parent. Default false.
+# }
+static func autofit_collision_shape_2d(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var source_path: String = params.get("source", "")
+	var shape_type: String = params.get("shape", "rectangle")
+	var margin: float = float(params.get("margin", 0.0))
+	var create: bool = params.get("create", false)
+
+	if node_path == "":
+		return _err(-32602, "missing 'node_path'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+
+	var target: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if target == null and not create:
+		return _err(-32001, "node not found: %s (pass create:true to auto-create)" % node_path)
+
+	# Resolve the visual source.
+	var source: Node = null
+	if source_path != "":
+		source = root.get_node_or_null(source_path)
+		if source == null:
+			return _err(-32001, "source not found: %s" % source_path)
+	elif target != null:
+		# Look among siblings for a Sprite2D / AnimatedSprite2D.
+		var parent := target.get_parent()
+		if parent:
+			for sib in parent.get_children():
+				if sib is Sprite2D or sib is AnimatedSprite2D:
+					source = sib
+					break
+	if source == null:
+		return _err(-32001, "no Sprite2D/AnimatedSprite2D source found — pass 'source'")
+
+	# Compute visual bounds (untransformed; CollisionShape2D inherits parent's transform).
+	var bounds := _sprite_bounds(source)
+	if bounds.size.x <= 0 or bounds.size.y <= 0:
+		return _err(-32001, "source has no visible extents (%s)" % source.get_class())
+
+	# Create the CollisionShape2D if needed.
+	if target == null and create:
+		var inst := CollisionShape2D.new()
+		inst.name = node_path.get_file() if "/" in node_path else node_path
+		var parent := source.get_parent()
+		parent.add_child(inst)
+		inst.owner = root
+		target = inst
+
+	if not target is CollisionShape2D:
+		return _err(-32602, "target is not a CollisionShape2D: %s (%s)" % [node_path, target.get_class()])
+	var cs: CollisionShape2D = target
+
+	# Build the requested shape sized to bounds.
+	var shape_res: Shape2D
+	match shape_type:
+		"rectangle":
+			var r := RectangleShape2D.new()
+			r.size = Vector2(
+				max(1.0, bounds.size.x - margin * 2.0),
+				max(1.0, bounds.size.y - margin * 2.0)
+			)
+			shape_res = r
+		"circle":
+			var c := CircleShape2D.new()
+			c.radius = max(1.0, min(bounds.size.x, bounds.size.y) / 2.0 - margin)
+			shape_res = c
+		"capsule":
+			var cap := CapsuleShape2D.new()
+			cap.radius = max(1.0, min(bounds.size.x, bounds.size.y) / 2.0 - margin)
+			cap.height = max(cap.radius * 2.0 + 1.0, bounds.size.y - margin * 2.0)
+			shape_res = cap
+		_:
+			return _err(-32602, "unknown shape '%s' (supported: rectangle, circle, capsule)" % shape_type)
+
+	cs.shape = shape_res
+	# Center the CollisionShape2D on the sprite's center.
+	cs.position = bounds.position + bounds.size / 2.0
+	EditorInterface.mark_scene_as_unsaved()
+
+	return _ok({
+		"node_path": String(root.get_path_to(cs)),
+		"shape": shape_type,
+		"size": [bounds.size.x - margin * 2.0, bounds.size.y - margin * 2.0],
+		"center": [cs.position.x, cs.position.y],
+		"source": String(root.get_path_to(source)),
+	})
+
+
+static func _sprite_bounds(source: Node) -> Rect2:
+	if source is Sprite2D:
+		var s: Sprite2D = source
+		if s.texture == null:
+			return Rect2(Vector2.ZERO, Vector2.ZERO)
+		var tex_size: Vector2 = s.texture.get_size()
+		if s.region_enabled:
+			tex_size = s.region_rect.size
+		var size: Vector2 = tex_size * Vector2(abs(s.scale.x), abs(s.scale.y))
+		# For centered sprites, bounds are at (-size/2, -size/2).
+		var offset: Vector2 = -size / 2.0 if s.centered else Vector2.ZERO
+		offset += s.offset
+		return Rect2(offset, size)
+	if source is AnimatedSprite2D:
+		var a: AnimatedSprite2D = source
+		if a.sprite_frames == null or a.animation == "":
+			return Rect2(Vector2.ZERO, Vector2.ZERO)
+		var tex := a.sprite_frames.get_frame_texture(a.animation, a.frame)
+		if tex == null:
+			return Rect2(Vector2.ZERO, Vector2.ZERO)
+		var size: Vector2 = tex.get_size() * Vector2(abs(a.scale.x), abs(a.scale.y))
+		var offset: Vector2 = -size / 2.0 if a.centered else Vector2.ZERO
+		offset += a.offset
+		return Rect2(offset, size)
+	return Rect2(Vector2.ZERO, Vector2.ZERO)
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/physics_tools.gd.uid

@@ -0,0 +1 @@
+uid://c26p52t0pcj6q

addons/agent_tools/tools/project_tools.gd

@@ -0,0 +1,89 @@
+@tool
+extends RefCounted
+
+# project.get_setting — read a value from project.godot. Returns {exists: false} if unset.
+# Params: {key: "application/config/name"}
+static func get_setting(params: Dictionary) -> Dictionary:
+	var key: String = params.get("key", "")
+	if key == "":
+		return _err(-32602, "missing 'key'")
+	if not ProjectSettings.has_setting(key):
+		return _ok({"key": key, "exists": false})
+	return _ok({"key": key, "exists": true, "value": ProjectSettings.get_setting(key)})
+
+
+# project.set_setting — write a value to project.godot and save.
+# DESTRUCTIVE: mutates project.godot. Prefer targeted tools (autoload.add, etc.) when available.
+# Params: {key, value}
+static func set_setting(params: Dictionary) -> Dictionary:
+	var key: String = params.get("key", "")
+	if key == "":
+		return _err(-32602, "missing 'key'")
+	if not params.has("value"):
+		return _err(-32602, "missing 'value'")
+	ProjectSettings.set_setting(key, params["value"])
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "ProjectSettings.save() failed: %d" % err)
+	return _ok({"key": key, "value": params["value"]})
+
+
+# autoload.add — register an autoload (singleton by default).
+# Params: {name, path, singleton?: true}
+static func autoload_add(params: Dictionary) -> Dictionary:
+	var autoload_name: String = params.get("name", "")
+	var path: String = params.get("path", "")
+	var singleton: bool = params.get("singleton", true)
+	if autoload_name == "" or path == "":
+		return _err(-32602, "missing 'name' or 'path'")
+	if not ResourceLoader.exists(path):
+		return _err(-32001, "path does not exist: %s" % path)
+
+	var value := ("*" + path) if singleton else path
+	ProjectSettings.set_setting("autoload/" + autoload_name, value)
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "save failed: %d" % err)
+	return _ok({"name": autoload_name, "path": path, "singleton": singleton})
+
+
+# autoload.remove — unregister an autoload.
+# Params: {name}
+static func autoload_remove(params: Dictionary) -> Dictionary:
+	var autoload_name: String = params.get("name", "")
+	if autoload_name == "":
+		return _err(-32602, "missing 'name'")
+	var key := "autoload/" + autoload_name
+	if not ProjectSettings.has_setting(key):
+		return _err(-32001, "autoload not found: %s" % autoload_name)
+	ProjectSettings.clear(key)
+	var err := ProjectSettings.save()
+	if err != OK:
+		return _err(-32001, "save failed: %d" % err)
+	return _ok({"removed": autoload_name})
+
+
+# autoload.list — enumerate all registered autoloads.
+static func autoload_list(_params: Dictionary) -> Dictionary:
+	var items: Array = []
+	# ProjectSettings.get_property_list() contains our autoload entries under "autoload/*".
+	for p in ProjectSettings.get_property_list():
+		var name: String = p.name
+		if not name.begins_with("autoload/"):
+			continue
+		var value: String = str(ProjectSettings.get_setting(name))
+		var singleton := value.begins_with("*")
+		items.append({
+			"name": name.trim_prefix("autoload/"),
+			"path": value.trim_prefix("*") if singleton else value,
+			"singleton": singleton,
+		})
+	return _ok({"autoloads": items})
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/project_tools.gd.uid

@@ -0,0 +1 @@
+uid://bsfbwkk5nas36

addons/agent_tools/tools/refs_tools.gd

@@ -0,0 +1,371 @@
+@tool
+extends RefCounted
+
+# refs.validate_project — project-wide sweep. No params.
+# Returns {checked: int, issues: [{path, kind, ...}]}.
+# Kinds: script_parse_error, scene_load_failed, scene_instantiate_failed,
+#        resource_load_failed, missing_ext_resource, missing_uid,
+#        signal_method_missing, signal_target_missing.
+static func validate_project(_params: Dictionary) -> Dictionary:
+	var issues: Array = []
+	var files: Array = []
+	_walk("res://", ["gd", "tscn", "tres"], files)
+
+	for path in files:
+		if path.begins_with("res://addons/agent_tools/"):
+			continue  # don't validate ourselves
+		if path.ends_with(".gd"):
+			_check_script(path, issues)
+		elif path.ends_with(".tscn"):
+			_check_scene(path, issues)
+		elif path.ends_with(".tres"):
+			_check_resource(path, issues)
+
+	return {"data": {"checked": files.size(), "issues": issues}}
+
+
+static func _walk(dir_path: String, exts: Array, out: Array) -> void:
+	var d := DirAccess.open(dir_path)
+	if d == null:
+		return
+	d.list_dir_begin()
+	while true:
+		var name := d.get_next()
+		if name == "":
+			break
+		if name.begins_with("."):
+			continue
+		var full := dir_path.path_join(name)
+		if d.current_is_dir():
+			_walk(full, exts, out)
+		else:
+			for e in exts:
+				if name.ends_with("." + e):
+					out.append(full)
+					break
+	d.list_dir_end()
+
+
+static func _check_script(path: String, issues: Array) -> void:
+	# Go through the normal loader so class_name / preload chains resolve against
+	# the real global registry. A detached GDScript.new() + reload() would false-positive
+	# on any script with class_name (duplicate global class registration).
+	var script := ResourceLoader.load(path, "Script")
+	if script == null:
+		issues.append({"path": path, "kind": "script_load_failed"})
+
+
+static func _check_scene(path: String, issues: Array) -> void:
+	_check_ext_resources_text(path, issues)
+
+	var packed := ResourceLoader.load(path, "PackedScene") as PackedScene
+	if packed == null:
+		issues.append({"path": path, "kind": "scene_load_failed"})
+		return
+	var root := packed.instantiate(PackedScene.GEN_EDIT_STATE_DISABLED)
+	if root == null:
+		issues.append({"path": path, "kind": "scene_instantiate_failed"})
+		return
+	_walk_scene_signals(root, root, path, issues)
+	root.free()
+
+
+static func _walk_scene_signals(node: Node, scene_root: Node, scene_path: String, issues: Array) -> void:
+	for sig in node.get_signal_list():
+		var sig_name: String = sig.name
+		for c in node.get_signal_connection_list(sig_name):
+			var flags: int = c.flags
+			if not (flags & CONNECT_PERSIST):
+				continue  # ignore runtime-only connections
+			var cb: Callable = c.callable
+			var target: Object = cb.get_object()
+			var method: String = cb.get_method()
+			if target == null:
+				issues.append({
+					"path": scene_path,
+					"kind": "signal_target_missing",
+					"node": String(scene_root.get_path_to(node)),
+					"signal": sig_name,
+				})
+			elif not target.has_method(method):
+				issues.append({
+					"path": scene_path,
+					"kind": "signal_method_missing",
+					"node": String(scene_root.get_path_to(node)),
+					"signal": sig_name,
+					"method": method,
+				})
+	for child in node.get_children():
+		if child.owner == scene_root or child == scene_root:
+			_walk_scene_signals(child, scene_root, scene_path, issues)
+
+
+static func _check_resource(path: String, issues: Array) -> void:
+	var res := ResourceLoader.load(path)
+	if res == null:
+		issues.append({"path": path, "kind": "resource_load_failed"})
+
+
+# refs.find_usages — find every file that references a given resource.
+# Target may be either a path ("res://player.gd") or a uid ("uid://abc123").
+# Searches for both forms so you catch uid-indirected references too.
+# Params: {target: "res://..." | "uid://..."}
+static func find_usages(params: Dictionary) -> Dictionary:
+	var target: String = params.get("target", "")
+	if target == "":
+		return _err(-32602, "missing 'target'")
+
+	var terms: Array = [target]
+	if target.begins_with("uid://"):
+		var id := ResourceUID.text_to_id(target)
+		if id != -1 and ResourceUID.has_id(id):
+			var p := ResourceUID.get_id_path(id)
+			if p != "" and p != target:
+				terms.append(p)
+	else:
+		var id := ResourceLoader.get_resource_uid(target)
+		if id != -1:
+			terms.append(ResourceUID.id_to_text(id))
+
+	var files: Array = []
+	_walk("res://", ["gd", "tscn", "tres", "cfg", "gdshader", "gdshaderinc", "cs", "godot"], files)
+
+	var matches: Array = []
+	for path in files:
+		if path.begins_with("res://addons/agent_tools/"):
+			continue
+		if path == target:
+			continue  # skip the file itself
+		var f := FileAccess.open(path, FileAccess.READ)
+		if f == null:
+			continue
+		var line_num := 0
+		while not f.eof_reached():
+			line_num += 1
+			var line := f.get_line()
+			for term in terms:
+				if term in line:
+					matches.append({
+						"path": path,
+						"line": line_num,
+						"matched": term,
+						"text": line.strip_edges(),
+					})
+					break
+
+	return _ok({"target": target, "terms_searched": terms, "matches": matches})
+
+
+# refs.rename — move a file and rewrite all references to it.
+# Path-form references are text-replaced; uid-form references keep working because
+# the .uid sidecar moves with the file (preserving the UID → new path mapping).
+# Params: {from, to, overwrite?: false, dry_run?: false}
+static func rename(params: Dictionary) -> Dictionary:
+	var from_path: String = params.get("from", "")
+	var to_path: String = params.get("to", "")
+	var overwrite: bool = params.get("overwrite", false)
+	var dry_run: bool = params.get("dry_run", false)
+
+	if from_path == "" or to_path == "":
+		return _err(-32602, "missing 'from' or 'to'")
+	if not (from_path.begins_with("res://") and to_path.begins_with("res://")):
+		return _err(-32602, "paths must be 'res://...'")
+	if from_path == to_path:
+		return _err(-32602, "'from' and 'to' are the same")
+	if not FileAccess.file_exists(from_path):
+		return _err(-32001, "source not found: %s" % from_path)
+	if FileAccess.file_exists(to_path) and not overwrite:
+		return _err(-32602, "destination exists (pass overwrite:true): %s" % to_path)
+
+	# Collect path-form usages. UID-form references are preserved automatically when
+	# the .uid sidecar moves with the file, so we don't need to rewrite them.
+	var usage := find_usages({"target": from_path})
+	if usage.has("error"):
+		return usage
+	var edits: Dictionary = {}
+	for m in usage.data.matches:
+		if m.matched != from_path:
+			continue  # uid-form match — no rewrite needed
+		if not edits.has(m.path):
+			edits[m.path] = true
+
+	if dry_run:
+		return _ok({
+			"would_move": {"from": from_path, "to": to_path},
+			"would_update": edits.keys(),
+		})
+
+	var dir_path := to_path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			return _err(-32001, "mkdir failed (%d): %s" % [derr, dir_path])
+
+	var move_err := DirAccess.rename_absolute(from_path, to_path)
+	if move_err != OK:
+		return _err(-32001, "move failed (%d)" % move_err)
+
+	# Move .uid sidecar so UIDs continue resolving to the new path. Best-effort —
+	# sidecar failures don't block the main rename that already succeeded.
+	var from_uid := from_path + ".uid"
+	if FileAccess.file_exists(from_uid):
+		@warning_ignore("return_value_discarded")
+		DirAccess.rename_absolute(from_uid, to_path + ".uid")
+	# Move .import sidecar for imported assets (textures, audio, etc.).
+	var from_import := from_path + ".import"
+	if FileAccess.file_exists(from_import):
+		@warning_ignore("return_value_discarded")
+		DirAccess.rename_absolute(from_import, to_path + ".import")
+
+	var files_updated: Array = []
+	for ref_path in edits.keys():
+		var rf := FileAccess.open(ref_path, FileAccess.READ)
+		if rf == null:
+			continue
+		var content := rf.get_as_text()
+		rf.close()
+		var new_content := content.replace(from_path, to_path)
+		if new_content == content:
+			continue
+		var wf := FileAccess.open(ref_path, FileAccess.WRITE)
+		if wf == null:
+			continue
+		wf.store_string(new_content)
+		wf.close()
+		files_updated.append(ref_path)
+
+	EditorInterface.get_resource_filesystem().scan()
+	return _ok({
+		"moved": {"from": from_path, "to": to_path},
+		"files_updated": files_updated,
+	})
+
+
+# refs.rename_class — rename `class_name X` to `class_name Y` and rewrite every
+# word-boundary reference to X across .gd / .tscn / .tres files. Best-effort:
+# won't rewrite an X that happens to be a local variable name (word boundary
+# alone isn't semantic analysis). Use dry_run first on anything non-trivial.
+# Params: {from, to, dry_run?: false}
+static func rename_class(params: Dictionary) -> Dictionary:
+	var from_name: String = params.get("from", "")
+	var to_name: String = params.get("to", "")
+	var dry_run: bool = params.get("dry_run", false)
+
+	if from_name == "" or to_name == "":
+		return _err(-32602, "missing 'from' or 'to'")
+	if not _is_valid_identifier(from_name):
+		return _err(-32602, "'from' is not a valid identifier: %s" % from_name)
+	if not _is_valid_identifier(to_name):
+		return _err(-32602, "'to' is not a valid identifier: %s" % to_name)
+	if from_name == to_name:
+		return _err(-32602, "'from' and 'to' are identical")
+
+	var defining_script := _find_class_definition(from_name)
+	if defining_script == "":
+		return _err(-32001, "no script found declaring class_name %s" % from_name)
+	if _find_class_definition(to_name) != "":
+		return _err(-32602, "class_name %s already exists" % to_name)
+
+	var files: Array = []
+	_walk("res://", ["gd", "tscn", "tres"], files)
+
+	var regex := RegEx.new()
+	regex.compile("\\b%s\\b" % from_name)
+
+	var edits: Array = []
+	for path in files:
+		if path.begins_with("res://addons/agent_tools/"):
+			continue
+		var f := FileAccess.open(path, FileAccess.READ)
+		if f == null:
+			continue
+		var text := f.get_as_text()
+		f.close()
+		if regex.search(text) != null:
+			edits.append(path)
+
+	if dry_run:
+		return _ok({
+			"from": from_name,
+			"to": to_name,
+			"defining_script": defining_script,
+			"would_update": edits,
+		})
+
+	var updated: Array = []
+	for path in edits:
+		var f := FileAccess.open(path, FileAccess.READ)
+		if f == null:
+			continue
+		var text := f.get_as_text()
+		f.close()
+		var new_text := regex.sub(text, to_name, true)
+		if new_text == text:
+			continue
+		var wf := FileAccess.open(path, FileAccess.WRITE)
+		if wf == null:
+			continue
+		wf.store_string(new_text)
+		wf.close()
+		updated.append(path)
+
+	EditorInterface.get_resource_filesystem().scan()
+	return _ok({
+		"from": from_name,
+		"to": to_name,
+		"defining_script": defining_script,
+		"updated": updated,
+	})
+
+
+static func _is_valid_identifier(s: String) -> bool:
+	var re := RegEx.new()
+	re.compile("^[A-Za-z_][A-Za-z0-9_]*$")
+	return re.search(s) != null
+
+
+static func _find_class_definition(class_name_val: String) -> String:
+	var files: Array = []
+	_walk("res://", ["gd"], files)
+	var re := RegEx.new()
+	re.compile("^\\s*class_name\\s+%s\\b" % class_name_val)
+	for path in files:
+		if path.begins_with("res://addons/agent_tools/"):
+			continue
+		var f := FileAccess.open(path, FileAccess.READ)
+		if f == null:
+			continue
+		var text := f.get_as_text()
+		f.close()
+		for line in text.split("\n"):
+			if re.search(line) != null:
+				return path
+	return ""
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}
+
+
+# Parse the raw .tscn/.tres text for [ext_resource ... path="..."] and verify each target resolves.
+# Catches references to files that were deleted or moved without updating the scene.
+static func _check_ext_resources_text(path: String, issues: Array) -> void:
+	var f := FileAccess.open(path, FileAccess.READ)
+	if f == null:
+		return
+	var text := f.get_as_text()
+	var regex := RegEx.new()
+	regex.compile("\\[ext_resource[^\\]]*path=\"([^\"]+)\"")
+	for m in regex.search_all(text):
+		var ref: String = m.get_string(1)
+		if ref.begins_with("uid://"):
+			var id := ResourceUID.text_to_id(ref)
+			if id == -1 or not ResourceUID.has_id(id):
+				issues.append({"path": path, "kind": "missing_uid", "uid": ref})
+			continue
+		if not ResourceLoader.exists(ref):
+			issues.append({"path": path, "kind": "missing_ext_resource", "target": ref})

addons/agent_tools/tools/refs_tools.gd.uid

@@ -0,0 +1 @@
+uid://vlnvjolougnv

addons/agent_tools/tools/resource_tools.gd

@@ -0,0 +1,175 @@
+@tool
+extends RefCounted
+
+const Coerce := preload("res://addons/agent_tools/tools/_coerce.gd")
+
+# resource.create — create a new .tres file.
+# Params: {path, type, script?, properties?, overwrite?: false}
+# 'type' must be a built-in Resource subclass (StyleBoxFlat, Theme, Curve, etc.).
+# For custom Resource subclasses written in GDScript, pass 'script' pointing at the
+# class's .gd file instead of 'type'.
+static func create(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var type_name: String = params.get("type", "")
+	var script_path: String = params.get("script", "")
+	var properties: Dictionary = params.get("properties", {})
+	var overwrite: bool = params.get("overwrite", false)
+
+	if path == "" or not path.begins_with("res://") or not path.ends_with(".tres"):
+		return _err(-32602, "'path' must be 'res://...' ending in .tres")
+	if FileAccess.file_exists(path) and not overwrite:
+		return _err(-32602, "file exists (pass overwrite:true to replace): %s" % path)
+
+	var res: Resource
+	if script_path != "":
+		var s := ResourceLoader.load(script_path, "Script") as Script
+		if s == null:
+			return _err(-32001, "failed to load script: %s" % script_path)
+		var inst = s.new()
+		if not (inst is Resource):
+			return _err(-32602, "script does not produce a Resource")
+		res = inst
+	elif type_name != "":
+		if not ClassDB.class_exists(type_name):
+			return _err(-32602, "unknown class: %s (use 'script' for custom Resource types)" % type_name)
+		if not ClassDB.is_parent_class(type_name, "Resource"):
+			return _err(-32602, "not a Resource subclass: %s" % type_name)
+		if not ClassDB.can_instantiate(type_name):
+			return _err(-32602, "class is not instantiable: %s" % type_name)
+		res = ClassDB.instantiate(type_name) as Resource
+	else:
+		return _err(-32602, "provide either 'type' (built-in Resource class) or 'script' (path to custom Resource .gd)")
+
+	var apply_res := _apply_properties(res, properties)
+	if apply_res.has("error"):
+		return apply_res
+
+	var dir_path := path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			return _err(-32001, "mkdir failed (%d): %s" % [derr, dir_path])
+
+	var save_err := ResourceSaver.save(res, path)
+	if save_err != OK:
+		return _err(-32001, "ResourceSaver.save failed: %d" % save_err)
+
+	EditorInterface.get_resource_filesystem().update_file(path)
+	return _ok({"path": path, "class": res.get_class()})
+
+
+# resource.set_property — load a .tres, set one property, save it back.
+# Params: {path, property, value} — same coercion as scene.set_property.
+static func set_property(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var property_name: String = params.get("property", "")
+	if path == "" or property_name == "":
+		return _err(-32602, "missing 'path' or 'property'")
+
+	var res := ResourceLoader.load(path)
+	if res == null:
+		return _err(-32001, "failed to load: %s" % path)
+
+	var prop_info: Dictionary = {}
+	for p in res.get_property_list():
+		if p.name == property_name:
+			prop_info = p
+			break
+	if prop_info.is_empty():
+		return _err(-32602, "property not found on %s: %s" % [res.get_class(), property_name])
+	if int(prop_info.get("usage", 0)) & PROPERTY_USAGE_READ_ONLY:
+		return _err(-32602, "property '%s' on %s is read-only" % [property_name, res.get_class()])
+
+	var coerced = Coerce.coerce(params.get("value"), prop_info.type)
+	if coerced is Dictionary and coerced.has("_error"):
+		return _err(-32602, coerced._error)
+
+	res.set(property_name, coerced)
+	var stored = res.get(property_name)
+	if coerced != null and stored == null and prop_info.type == TYPE_OBJECT:
+		return _err(-32001,
+			"property '%s' on %s was not accepted (assignment silently dropped — target expects a %s; passed value type didn't match)" %
+			[property_name, res.get_class(), prop_info.get("hint_string", "Resource")])
+	var save_err := ResourceSaver.save(res, path)
+	if save_err != OK:
+		return _err(-32001, "save failed: %d" % save_err)
+	EditorInterface.get_resource_filesystem().update_file(path)
+	return _ok({"path": path, "property": property_name, "value": Coerce.to_json(stored)})
+
+
+# resource.call_method — load a .tres, invoke a method, save, return the method's result.
+# Useful for helper methods that aren't properties — e.g. StyleBoxFlat.set_border_width_all(4)
+# or set_corner_radius_all(14). Args are coerced against the method's declared types.
+# Params: {path, method, args?: [], save?: true}
+static func call_method(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var method_name: String = params.get("method", "")
+	var args: Array = params.get("args", [])
+	var should_save: bool = params.get("save", true)
+	if path == "" or method_name == "":
+		return _err(-32602, "missing 'path' or 'method'")
+
+	var res := ResourceLoader.load(path)
+	if res == null:
+		return _err(-32001, "failed to load: %s" % path)
+	if not res.has_method(method_name):
+		return _err(-32602, "method not found: %s.%s" % [res.get_class(), method_name])
+
+	var coerced_args = _coerce_args(res, method_name, args)
+	if coerced_args is Dictionary:
+		return coerced_args  # error passthrough (same reason as scene.call_method: no type annotation)
+	var result = res.callv(method_name, coerced_args)
+
+	if should_save:
+		var save_err := ResourceSaver.save(res, path)
+		if save_err != OK:
+			return _err(-32001, "save failed: %d" % save_err)
+		EditorInterface.get_resource_filesystem().update_file(path)
+
+	return _ok({
+		"path": path,
+		"method": method_name,
+		"return": Coerce.to_json(result),
+		"saved": should_save,
+	})
+
+
+static func _coerce_args(obj: Object, method_name: String, args: Array):
+	var method_info: Dictionary = {}
+	for m in obj.get_method_list():
+		if m.name == method_name:
+			method_info = m
+			break
+	var arg_types: Array = method_info.get("args", [])
+	var out: Array = []
+	for i in args.size():
+		if i < arg_types.size():
+			var coerced = Coerce.coerce(args[i], arg_types[i].type)
+			if coerced is Dictionary and coerced.has("_error"):
+				return _err(-32602, "arg %d: %s" % [i, coerced._error])
+			out.append(coerced)
+		else:
+			out.append(args[i])
+	return out
+
+
+static func _apply_properties(res: Resource, props: Dictionary) -> Dictionary:
+	var by_name: Dictionary = {}
+	for p in res.get_property_list():
+		by_name[p.name] = p
+	for key in props:
+		if not by_name.has(key):
+			return _err(-32602, "property not found on %s: %s" % [res.get_class(), key])
+		var coerced = Coerce.coerce(props[key], by_name[key].type)
+		if coerced is Dictionary and coerced.has("_error"):
+			return _err(-32602, "property %s: %s" % [key, coerced._error])
+		res.set(key, coerced)
+	return {}
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/resource_tools.gd.uid

@@ -0,0 +1 @@
+uid://cw3smf38qys7f

addons/agent_tools/tools/run_tools.gd

@@ -0,0 +1,239 @@
+@tool
+extends RefCounted
+
+# run.scene_headless — run a scene in a child process and capture structured results.
+#
+# MODES
+#   BARE (no input_script / screenshot / screenshots / state_dump):
+#     Runs the target directly with --headless. Fast, no window. Right for
+#     "does _ready not crash" checks.
+#
+#   DRIVEN (anything beyond "path" and "quit_after_seconds"):
+#     Runs the target under a shipped wrapper driver (addons/agent_tools/headless/
+#     driver.tscn) that reads a per-call config, injects scripted input per frame,
+#     captures one or more screenshots, and dumps final scene state on quit.
+#
+# SCREENSHOT NOTE
+#   Godot 4.6's --headless forces a Dummy renderer that makes captures impossible.
+#   When any screenshot is requested the subprocess runs WITH a visible window
+#   positioned at -9999,-9999 (offscreen on multi-monitor setups) and the real
+#   Vulkan/OpenGL renderer. Brief window flash is unavoidable.
+#
+# Params:
+#   path:                required, "res://scene.tscn"
+#   quit_after_seconds:  default 2.0
+#   extra_args:          additional CLI args passed to the child godot process
+#   input_script:        [{frame, type, ...}, ...]  see event shapes below
+#   screenshot:          single output PNG path (shorthand for one capture at quit_frame)
+#   screenshots:         [{frame, path}, ...]  multiple captures at specific frames
+#   resolution:          "WxH", default "320x240". Only applies when screenshots requested.
+#   state_dump:          bool, default false. When true, driver writes a JSON snapshot
+#                        of the final scene tree (name/class/node_path/script/common
+#                        properties) that the tool returns as result.final_state.
+#   seed:                int, optional. Seeds the global RNG before instancing the
+#                        target so runs are reproducible.
+#
+# Event types for input_script:
+#   {frame, type: "action_tap",     action}
+#   {frame, type: "action_press",   action, strength?}
+#   {frame, type: "action_release", action}
+#   {frame, type: "key",            keycode, pressed?: true}
+#   {frame, type: "mouse_click",    position: [x, y], button?: 1}
+#   {frame, type: "mouse_motion",   position: [x, y]}
+#
+# Return includes: exit_code, output (stdout/stderr), command, errors, warnings,
+#   screenshots (array of {frame, path, captured: bool}), final_state (if state_dump),
+#   mode, quit_after_frames.
+
+const STATE_DUMP_PATH := "res://.godot/agent_tools/headless/state_dump.json"
+
+
+static func scene_headless(params: Dictionary) -> Dictionary:
+	var scene_path: String = params.get("path", "")
+	var quit_after_seconds: float = float(params.get("quit_after_seconds", 2.0))
+	var extra_args: Array = params.get("extra_args", [])
+	var input_script = params.get("input_script", null)
+	var resolution: String = params.get("resolution", "320x240")
+	var state_dump: bool = params.get("state_dump", false)
+	var rng_seed = params.get("seed", null)
+
+	# Normalize both screenshot forms into a single list.
+	var screenshots: Array = []
+	var single_shot: String = params.get("screenshot", "")
+	if single_shot != "":
+		screenshots.append({"frame": int(round(quit_after_seconds * 60.0)), "path": single_shot})
+	var multi: Array = params.get("screenshots", [])
+	for s in multi:
+		if typeof(s) != TYPE_DICTIONARY or not s.has("frame") or not s.has("path"):
+			return _err(-32602, "each 'screenshots' entry needs {frame, path}")
+		screenshots.append({"frame": int(s.frame), "path": str(s.path)})
+
+	if scene_path == "":
+		return _err(-32602, "missing 'path'")
+	if not ResourceLoader.exists(scene_path, "PackedScene"):
+		return _err(-32001, "scene not found: %s" % scene_path)
+
+	var frames: int = max(1, int(round(quit_after_seconds * 60.0)))
+	var use_driver := input_script != null or not screenshots.is_empty() or state_dump or rng_seed != null
+	var needs_window := not screenshots.is_empty()
+
+	var run_scene_path := scene_path
+	if use_driver:
+		# Wipe any stale state dump from prior run so "file exists" is a reliable signal.
+		if FileAccess.file_exists(STATE_DUMP_PATH):
+			@warning_ignore("return_value_discarded")
+			DirAccess.remove_absolute(STATE_DUMP_PATH)
+		# Strict-typed arg: can't pass a Variant-valued ternary directly into an
+		# Array param (parse error). Normalize first.
+		var script_list: Array = []
+		if input_script is Array:
+			script_list = input_script
+		var prep := _prepare_driver_config(scene_path, script_list, frames, screenshots, state_dump, rng_seed)
+		if prep.has("_error"):
+			return _err(-32001, prep._error)
+		run_scene_path = "res://addons/agent_tools/headless/driver.tscn"
+
+	var exe := OS.get_executable_path()
+	var project_dir := ProjectSettings.globalize_path("res://")
+	var hard_quit_frames: int = frames + 30
+
+	var args: Array = ["--path", project_dir]
+	if needs_window:
+		# Real renderer required for screenshots; run windowed but offscreen.
+		args.append("--windowed")
+		args.append("--resolution")
+		args.append(resolution)
+		args.append("--position")
+		args.append("-9999,-9999")
+	else:
+		args.append("--headless")
+	args.append("--quit-after")
+	args.append(str(hard_quit_frames))
+	for a in extra_args:
+		args.append(str(a))
+	args.append(run_scene_path)
+
+	var output: Array = []
+	var exit_code := OS.execute(exe, args, output, true)
+	# str() always returns a String; avoids Variant-via-ternary parse issue.
+	var stdout: String = ""
+	if output.size() > 0:
+		stdout = str(output[0])
+
+	var diagnostics := _extract_diagnostics(stdout)
+
+	var result: Dictionary = {
+		"exit_code": exit_code,
+		"output": stdout,
+		"command": "%s %s" % [exe, " ".join(args)],
+		"quit_after_frames": frames,
+		"mode": "driven" if use_driver else "bare",
+		"errors": diagnostics.errors,
+		"warnings": diagnostics.warnings,
+	}
+	if use_driver:
+		result["driver_scene"] = run_scene_path
+	if not screenshots.is_empty():
+		var shot_results: Array = []
+		for s in screenshots:
+			shot_results.append({
+				"frame": s.frame,
+				"path": s.path,
+				"captured": FileAccess.file_exists(s.path),
+			})
+		result["screenshots"] = shot_results
+	if state_dump:
+		# = not := — _load_state_dump has no return annotation so := can't infer.
+		var state = _load_state_dump()
+		if state != null:
+			result["final_state"] = state
+	return _ok(result)
+
+
+static func _prepare_driver_config(target: String, input_script: Array, quit_frame: int, screenshots: Array, state_dump: bool, rng_seed) -> Dictionary:
+	var cfg_dir := "res://.godot/agent_tools/headless"
+	if not DirAccess.dir_exists_absolute(cfg_dir):
+		var derr := DirAccess.make_dir_recursive_absolute(cfg_dir)
+		if derr != OK:
+			return {"_error": "mkdir failed for %s (%d)" % [cfg_dir, derr]}
+
+	var config := {
+		"target_scene": target,
+		"input_script": input_script,
+		"quit_frame": quit_frame,
+		"screenshots": screenshots,
+		"state_dump": state_dump,
+		"state_dump_path": STATE_DUMP_PATH,
+	}
+	if rng_seed != null:
+		config["seed"] = int(rng_seed)
+
+	var cfg_path := cfg_dir + "/config.json"
+	var f := FileAccess.open(cfg_path, FileAccess.WRITE)
+	if f == null:
+		return {"_error": "failed to write driver config at %s" % cfg_path}
+	f.store_string(JSON.stringify(config, "  "))
+	f.close()
+	return {"config_path": cfg_path}
+
+
+# Parse Godot's stdout for ERROR:/WARNING:/SCRIPT ERROR:/USER ERROR:/USER WARNING: lines.
+# Returns {errors: [{category, message, context}], warnings: [{category, message}]}.
+# Context is the next line if it starts with whitespace (typical "at: file:line" trailer).
+static func _extract_diagnostics(stdout: String) -> Dictionary:
+	var errors: Array = []
+	var warnings: Array = []
+	var lines: PackedStringArray = stdout.split("\n")
+	var i := 0
+	while i < lines.size():
+		var line: String = lines[i].trim_suffix("\r")
+		var category := ""
+		var is_error := false
+		var is_warning := false
+		for prefix in ["ERROR:", "USER ERROR:", "SCRIPT ERROR:"]:
+			if line.begins_with(prefix):
+				category = prefix.trim_suffix(":")
+				is_error = true
+				break
+		if not is_error:
+			for prefix in ["WARNING:", "USER WARNING:"]:
+				if line.begins_with(prefix):
+					category = prefix.trim_suffix(":")
+					is_warning = true
+					break
+		if is_error or is_warning:
+			var msg: String = line.substr(category.length() + 1).strip_edges()
+			var context := ""
+			if i + 1 < lines.size():
+				var next := lines[i + 1].trim_suffix("\r")
+				if next.begins_with("   ") or next.begins_with("\t"):
+					context = next.strip_edges()
+					i += 1
+			if is_error:
+				errors.append({"category": category, "message": msg, "context": context})
+			else:
+				warnings.append({"category": category, "message": msg, "context": context})
+		i += 1
+	return {"errors": errors, "warnings": warnings}
+
+
+static func _load_state_dump():
+	if not FileAccess.file_exists(STATE_DUMP_PATH):
+		return null
+	var f := FileAccess.open(STATE_DUMP_PATH, FileAccess.READ)
+	if f == null:
+		return null
+	var text := f.get_as_text()
+	f.close()
+	var parsed = JSON.parse_string(text)
+	if typeof(parsed) != TYPE_DICTIONARY:
+		return null
+	return parsed
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/run_tools.gd.uid

@@ -0,0 +1 @@
+uid://7r486ud37chv

addons/agent_tools/tools/scene_tools.gd

@@ -0,0 +1,734 @@
+@tool
+extends RefCounted
+
+const Coerce := preload("res://addons/agent_tools/tools/_coerce.gd")
+
+# scene.inspect — read-only. Accepts {"path": "res://..."} or omits path to use the currently-edited scene.
+#   Returns {root: <NodeDict>, path: "<scene_file_path>"} where NodeDict = {name, class, node_path, script, children}.
+static func inspect(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var root: Node
+	var owns_root := false
+	var scene_file_path: String
+
+	if path == "":
+		root = EditorInterface.get_edited_scene_root()
+		if root == null:
+			return _err(-32001, "no scene open and no 'path' provided")
+		scene_file_path = root.scene_file_path
+	else:
+		var packed := ResourceLoader.load(path, "PackedScene") as PackedScene
+		if packed == null:
+			return _err(-32001, "failed to load scene: %s" % path)
+		root = packed.instantiate(PackedScene.GEN_EDIT_STATE_DISABLED)
+		if root == null:
+			return _err(-32001, "instantiate failed: %s" % path)
+		owns_root = true
+		scene_file_path = path
+
+	var tree := _node_to_dict(root, root)
+	if owns_root:
+		root.free()
+	return _ok({"path": scene_file_path, "root": tree})
+
+
+static func _node_to_dict(node: Node, scene_root: Node) -> Dictionary:
+	var d := {
+		"name": String(node.name),
+		"class": node.get_class(),
+		"node_path": "." if node == scene_root else String(scene_root.get_path_to(node)),
+		"script": "",
+		"children": [],
+	}
+	var scr := node.get_script() as Script
+	if scr:
+		d.script = scr.resource_path
+	for child in node.get_children():
+		# Only include nodes belonging to this scene (skip runtime-added children of instanced sub-scenes).
+		if child.owner == scene_root or child == scene_root:
+			d.children.append(_node_to_dict(child, scene_root))
+	return d
+
+
+# scene.add_node — operates on the currently-edited scene.
+# Params: {type: "Node2D", name?: "Foo", parent_path?: "."}
+static func add_node(params: Dictionary) -> Dictionary:
+	var node_type: String = params.get("type", "")
+	var node_name: String = params.get("name", "")
+	var parent_path: String = params.get("parent_path", ".")
+
+	if node_type == "":
+		return _err(-32602, "missing 'type'")
+	if not ClassDB.class_exists(node_type):
+		return _err(-32602, "unknown class: %s" % node_type)
+	if not ClassDB.is_parent_class(node_type, "Node"):
+		return _err(-32602, "type must derive from Node: %s" % node_type)
+	if not ClassDB.can_instantiate(node_type):
+		return _err(-32602, "class is not instantiable: %s" % node_type)
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+
+	var parent: Node = root if parent_path == "." or parent_path == "" else root.get_node_or_null(parent_path)
+	if parent == null:
+		return _err(-32001, "parent not found: %s" % parent_path)
+
+	var inst := ClassDB.instantiate(node_type) as Node
+	if inst == null:
+		return _err(-32001, "failed to instantiate %s" % node_type)
+
+	parent.add_child(inst)
+	if node_name != "":
+		inst.name = node_name
+	# Owner MUST be set to the scene root, otherwise the node won't be saved.
+	inst.owner = root
+
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"node_path": String(root.get_path_to(inst)),
+		"name": String(inst.name),
+		"class": inst.get_class(),
+	})
+
+
+# scene.set_property — operates on the currently-edited scene.
+# Params: {node_path, property, value} — value is coerced via Coerce.coerce based on
+# the target property's type. See _coerce.gd for the full supported-type list.
+static func set_property(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var property_name: String = params.get("property", "")
+	if node_path == "" or property_name == "":
+		return _err(-32602, "missing 'node_path' or 'property'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+
+	var prop_info: Dictionary = {}
+	for p in node.get_property_list():
+		if p.name == property_name:
+			prop_info = p
+			break
+	if prop_info.is_empty():
+		return _err(-32602, "property not found on %s: %s" % [node.get_class(), property_name])
+	# Reject read-only properties upfront — Godot would silently ignore the set().
+	if int(prop_info.get("usage", 0)) & PROPERTY_USAGE_READ_ONLY:
+		return _err(-32602, "property '%s' on %s is read-only" % [property_name, node.get_class()])
+
+	var assigned := _assign_property(node, property_name, prop_info, params.get("value"))
+	if assigned.has("error"):
+		return _err(int(assigned.get("code", -32001)), assigned.error)
+
+	EditorInterface.mark_scene_as_unsaved()
+
+	return _ok({
+		"node_path": node_path,
+		"property": property_name,
+		"value": Coerce.to_json(assigned.get("stored")),
+	})
+
+
+# Assign a JSON-native value into node[property_name], handling three failure
+# modes the bare `node.set()` path gets wrong:
+#
+#   1. Node-typed @exports (`@export var foo: Node2D`) — TYPE_OBJECT with a
+#      PROPERTY_HINT_NODE_TYPE hint. A path string must be resolved to the actual
+#      Node so PackedScene.pack() emits the `node_paths=PackedStringArray(...)`
+#      metadata and serializes it (the inspector drag-drop equivalent). A bare
+#      string assignment is silently dropped at save time.
+#   2. Setter-routed properties (notably PROPERTY_USAGE_NO_EDITOR ones like
+#      `unique_name_in_owner`) — `node.set()` doesn't reliably dispatch to the
+#      registered setter. If the readback doesn't match, route through the
+#      explicit `set_<name>` method.
+#   3. Silently-dropped assignments — Godot accepts the set() call but drops the
+#      value (type mismatch on a Resource slot, or a primitive that didn't take).
+#      Surface an error instead of echoing a misleading value.
+#
+# Returns {"stored": <value>} on success, or {"error": msg, "code": int} on failure.
+static func _assign_property(node: Node, property_name: String, prop_info: Dictionary, raw_value) -> Dictionary:
+	# Case 1: node-typed export. Resolve a path string to the actual Node.
+	if prop_info.type == TYPE_OBJECT and int(prop_info.get("hint", 0)) == PROPERTY_HINT_NODE_TYPE:
+		if raw_value == null:
+			node.set(property_name, null)
+			return {"stored": null}
+		if not (raw_value is String):
+			return {"code": -32602, "error":
+				"node-typed export '%s' expects a node path string (e.g. '../Target'), got %s" %
+				[property_name, type_string(typeof(raw_value))]}
+		var target := node.get_node_or_null(NodePath(raw_value))
+		if target == null:
+			return {"code": -32001, "error":
+				"node-typed export '%s' on %s: no node at path '%s' (resolved relative to '%s'). " %
+				[property_name, node.get_class(), raw_value, node.name] +
+				"The target node must already exist in the scene."}
+		node.set(property_name, target)
+		var stored_node = node.get(property_name)
+		if stored_node != target:
+			return {"code": -32001, "error":
+				"node-typed export '%s' on %s: assignment dropped — resolved node is a %s but the slot expects a %s" %
+				[property_name, node.get_class(), target.get_class(), prop_info.get("hint_string", "Node")]}
+		return {"stored": stored_node}
+
+	var coerced = Coerce.coerce(raw_value, prop_info.type)
+	if coerced is Dictionary and coerced.has("_error"):
+		return {"code": -32602, "error": coerced._error}
+
+	node.set(property_name, coerced)
+	var stored = node.get(property_name)
+
+	# Case 2: setter routing. Some properties don't dispatch through node.set();
+	# if the readback diverged and an explicit setter exists, go through it.
+	if not _values_match(stored, coerced) and node.has_method("set_" + property_name):
+		node.call("set_" + property_name, coerced)
+		stored = node.get(property_name)
+
+	# Case 3a: Resource-typed slot silently rejected a non-Resource value.
+	if coerced != null and stored == null and prop_info.type == TYPE_OBJECT:
+		return {"code": -32001, "error":
+			"property '%s' on %s was not accepted (assignment silently dropped — target expects a %s; passed value type didn't match)" %
+			[property_name, node.get_class(), prop_info.get("hint_string", "Resource")]}
+
+	# Case 3b: a bool that didn't take. Limited to bool (the documented pitfall,
+	# e.g. unique_name_in_owner) because other primitives legitimately transform
+	# on set (name auto-deduplicates, ints clamp to range, floats lose precision),
+	# which would make a strict match check fire false positives.
+	if prop_info.type == TYPE_BOOL and not _values_match(stored, coerced):
+		return {"code": -32001, "error":
+			"property '%s' on %s was not accepted (set silently dropped: requested %s, stored %s)" %
+			[property_name, node.get_class(), str(coerced), str(stored)]}
+
+	return {"stored": stored}
+
+
+# Equality check tolerant of GDScript's cross-type Variant comparison. Used to
+# detect whether an assignment actually took before deciding to route through a
+# setter or flag a silent drop.
+static func _values_match(a, b) -> bool:
+	return a == b
+
+
+# scene.remove_node — operates on the currently-edited scene. Cannot remove the scene root.
+# Params: {node_path: "Player/Sprite2D"}
+static func remove_node(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	if node_path == "":
+		return _err(-32602, "missing 'node_path'")
+	if node_path == ".":
+		return _err(-32602, "cannot remove scene root")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+
+	node.get_parent().remove_child(node)
+	node.queue_free()
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({"removed": node_path})
+
+
+# scene.reparent — move a node under a new parent in the currently-edited scene.
+# Params: {node_path, new_parent_path, keep_global_transform?: true}
+static func reparent(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var new_parent_path: String = params.get("new_parent_path", "")
+	var keep_xform: bool = params.get("keep_global_transform", true)
+	if node_path == "" or new_parent_path == "":
+		return _err(-32602, "missing 'node_path' or 'new_parent_path'")
+	if node_path == ".":
+		return _err(-32602, "cannot reparent scene root")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	var new_parent: Node = root if new_parent_path == "." else root.get_node_or_null(new_parent_path)
+	if new_parent == null:
+		return _err(-32001, "new parent not found: %s" % new_parent_path)
+	if new_parent == node or node.is_ancestor_of(new_parent):
+		return _err(-32602, "cannot reparent under self or descendant (would create cycle)")
+
+	node.reparent(new_parent, keep_xform)
+	# reparent() preserves owner in 4.3+, but be explicit so the node still serializes.
+	node.owner = root
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({"node_path": String(root.get_path_to(node))})
+
+
+# scene.open — open a scene in the editor, making it the currently-edited scene.
+# Params: {path: "res://Main.tscn"}
+static func open_scene(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	if path == "":
+		return _err(-32602, "missing 'path'")
+	if not ResourceLoader.exists(path, "PackedScene"):
+		return _err(-32001, "scene not found: %s" % path)
+	EditorInterface.open_scene_from_path(path)
+	return _ok({"path": path})
+
+
+# scene.save — save the currently-edited scene. Pass 'path' to save-as (rebinds
+# the scene to that path).
+#
+# Fresh scenes (created via `scene.add_node`-only workflows with no backing file,
+# or never-saved manual scenes) have an empty `scene_file_path`. Godot's bare
+# `save_scene()` responds by opening the native Save-As file dialog — blocking
+# the editor and requiring a human click. We detect that case and return an
+# error instead, so the agent can react cleanly by re-calling with `path`.
+static func save_scene(params: Dictionary) -> Dictionary:
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var path: String = params.get("path", "")
+	var current_path: String = root.scene_file_path
+
+	if path == "" and current_path == "":
+		return _err(-32602,
+			"scene has never been saved and no 'path' was given. " +
+			"Calling bare save would open the Save-As dialog and block the editor. " +
+			"Re-call with 'path' set to a res:// target (e.g. 'res://scenes/foo.tscn').")
+
+	if path == "":
+		var err := EditorInterface.save_scene()
+		if err != OK:
+			return _err(-32001, "save failed: error %d" % err)
+	else:
+		# save_scene_as does NOT auto-create parent directories — it silently
+		# fails if the target dir doesn't exist. Ensure the dir first.
+		var dir_path := path.get_base_dir()
+		if not DirAccess.dir_exists_absolute(dir_path):
+			var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+			if derr != OK:
+				return _err(-32001, "mkdir failed (%d): %s" % [derr, dir_path])
+		# save_scene_as returns void in Godot 4.x — no error to check directly.
+		EditorInterface.save_scene_as(path)
+
+	var final_path: String = EditorInterface.get_edited_scene_root().scene_file_path
+	# If we passed a path but the scene still isn't bound, the save didn't land.
+	# Surface that explicitly instead of returning {"path": ""} which looks like success.
+	if path != "" and final_path == "":
+		return _err(-32001,
+			"save_scene_as('%s') did not bind the scene — verify the path is writable and ends in .tscn" % path)
+	return _ok({"path": final_path})
+
+
+# scene.new — create a new .tscn file with a root node of the given type. By default
+# opens the new scene in the editor so subsequent scene.* calls operate on it.
+# Params: {path, root_type?: "Node", root_name?, overwrite?: false, open_after?: true}
+static func new_scene(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var root_type: String = params.get("root_type", "Node")
+	var root_name: String = params.get("root_name", "")
+	var overwrite: bool = params.get("overwrite", false)
+	var open_after: bool = params.get("open_after", true)
+
+	if path == "" or not path.begins_with("res://") or not path.ends_with(".tscn"):
+		return _err(-32602, "'path' must be 'res://...' ending in .tscn")
+	if FileAccess.file_exists(path) and not overwrite:
+		return _err(-32602, "file exists (pass overwrite:true to replace): %s" % path)
+	if not ClassDB.class_exists(root_type):
+		return _err(-32602, "unknown class: %s" % root_type)
+	if not ClassDB.is_parent_class(root_type, "Node"):
+		return _err(-32602, "root_type must derive from Node: %s" % root_type)
+	if not ClassDB.can_instantiate(root_type):
+		return _err(-32602, "class is not instantiable: %s" % root_type)
+
+	var root := ClassDB.instantiate(root_type) as Node
+	if root == null:
+		return _err(-32001, "failed to instantiate %s" % root_type)
+	if root_name != "":
+		root.name = root_name
+
+	var dir_path := path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			root.free()
+			return _err(-32001, "mkdir failed (%d): %s" % [derr, dir_path])
+
+	var packed := PackedScene.new()
+	var pack_err := packed.pack(root)
+	var final_name := String(root.name)
+	root.free()
+	if pack_err != OK:
+		return _err(-32001, "PackedScene.pack failed: %d" % pack_err)
+	var save_err := ResourceSaver.save(packed, path)
+	if save_err != OK:
+		return _err(-32001, "ResourceSaver.save failed: %d" % save_err)
+
+	EditorInterface.get_resource_filesystem().update_file(path)
+	if open_after:
+		# If the target path is already the currently-edited scene, open_scene_from_path
+		# will just switch to the existing (stale) in-memory tab. Force a reload so the
+		# freshly-written file is what the editor shows.
+		var current_root := EditorInterface.get_edited_scene_root()
+		if current_root != null and current_root.scene_file_path == path:
+			EditorInterface.reload_scene_from_path(path)
+		else:
+			EditorInterface.open_scene_from_path(path)
+	return _ok({"path": path, "root_type": root_type, "root_name": final_name})
+
+
+# scene.instance_packed — add an existing .tscn as a sub-scene child in the currently-edited scene.
+# Params: {scene_path, parent_path?: ".", name?}
+static func instance_packed(params: Dictionary) -> Dictionary:
+	var scene_path: String = params.get("scene_path", "")
+	var parent_path: String = params.get("parent_path", ".")
+	var node_name: String = params.get("name", "")
+
+	if scene_path == "":
+		return _err(-32602, "missing 'scene_path'")
+	var packed := ResourceLoader.load(scene_path, "PackedScene") as PackedScene
+	if packed == null:
+		return _err(-32001, "failed to load scene: %s" % scene_path)
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var parent: Node = root if parent_path == "." or parent_path == "" else root.get_node_or_null(parent_path)
+	if parent == null:
+		return _err(-32001, "parent not found: %s" % parent_path)
+	if scene_path == root.scene_file_path:
+		return _err(-32602, "cannot instance a scene into itself (would recurse)")
+
+	var inst := packed.instantiate()
+	if inst == null:
+		return _err(-32001, "instantiate failed")
+
+	parent.add_child(inst)
+	if node_name != "":
+		inst.name = node_name
+	# Owner is the scene root so the sub-scene instance serializes with this scene.
+	inst.owner = root
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"node_path": String(root.get_path_to(inst)),
+		"scene_path": scene_path,
+		"name": String(inst.name),
+	})
+
+
+# scene.get_property — read a property from a node. Mirror of set_property.
+# Params: {node_path, property}
+static func get_property(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var property_name: String = params.get("property", "")
+	if node_path == "" or property_name == "":
+		return _err(-32602, "missing 'node_path' or 'property'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+
+	var prop_type: int = TYPE_NIL
+	var found := false
+	for p in node.get_property_list():
+		if p.name == property_name:
+			prop_type = p.type
+			found = true
+			break
+	if not found:
+		return _err(-32602, "property not found on %s: %s" % [node.get_class(), property_name])
+
+	return _ok({
+		"node_path": node_path,
+		"property": property_name,
+		"value": Coerce.to_json(node.get(property_name)),
+		"type": type_string(prop_type),
+	})
+
+
+# scene.capture_screenshot — save a PNG of what the editor is currently showing
+# for the open scene. Captures the appropriate editor viewport (2D for 2D/Control
+# root nodes, 3D for Node3D roots). Includes the editor's grid/gizmos — this is
+# "what the user sees" rather than a clean render, which is actually useful for
+# the agent to spot layout problems.
+# Params: {output?: "res://screenshot.png"}
+# Returns: {path, width, height}
+static func capture_screenshot(params: Dictionary) -> Dictionary:
+	var output_path: String = params.get("output", "")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open — open one first with scene.open")
+
+	var viewport: SubViewport
+	if root is Node3D:
+		viewport = EditorInterface.get_editor_viewport_3d(0)
+	else:
+		viewport = EditorInterface.get_editor_viewport_2d()
+	if viewport == null:
+		return _err(-32001, "could not obtain editor viewport")
+
+	var tex := viewport.get_texture()
+	if tex == null:
+		return _err(-32001, "viewport has no texture yet (try again after the editor renders a frame)")
+	var img := tex.get_image()
+	if img == null or img.is_empty():
+		return _err(-32001, "failed to capture image from viewport")
+
+	if output_path == "":
+		var base: String = "screenshot"
+		if root.scene_file_path != "":
+			base = root.scene_file_path.get_file().get_basename()
+		output_path = "res://.godot/agent_tools/%s.png" % base
+
+	var dir_path := output_path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			return _err(-32001, "mkdir failed: %d" % derr)
+
+	var save_err := img.save_png(output_path)
+	if save_err != OK:
+		return _err(-32001, "save_png failed: %d" % save_err)
+
+	return _ok({
+		"path": output_path,
+		"width": img.get_width(),
+		"height": img.get_height(),
+		"note": "clean viewport capture (no editor grid/gizmos); empty scenes render as the viewport background color",
+	})
+
+
+# scene.duplicate_node — clone a node (with its descendants) into the currently-edited scene.
+# Owner is set recursively so the duplicated subtree serializes with the scene.
+# Params: {node_path, new_name?, parent_path?: same parent}
+static func duplicate_node(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var new_name: String = params.get("new_name", "")
+	var parent_path: String = params.get("parent_path", "")
+	if node_path == "":
+		return _err(-32602, "missing 'node_path'")
+	if node_path == ".":
+		return _err(-32602, "cannot duplicate scene root")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var src: Node = root.get_node_or_null(node_path)
+	if src == null:
+		return _err(-32001, "node not found: %s" % node_path)
+
+	# DUPLICATE_SIGNALS | DUPLICATE_GROUPS | DUPLICATE_SCRIPTS — default flags.
+	var copy: Node = src.duplicate(7)
+	if copy == null:
+		return _err(-32001, "duplicate() failed")
+
+	var parent: Node = src.get_parent() if parent_path == "" else root.get_node_or_null(parent_path)
+	if parent == null:
+		return _err(-32001, "parent not found: %s" % parent_path)
+	parent.add_child(copy)
+	if new_name != "":
+		copy.name = new_name
+	_set_owner_recursive(copy, root)
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"source": node_path,
+		"node_path": String(root.get_path_to(copy)),
+		"name": String(copy.name),
+	})
+
+
+static func _set_owner_recursive(node: Node, owner: Node) -> void:
+	node.owner = owner
+	for child in node.get_children():
+		_set_owner_recursive(child, owner)
+
+
+# scene.build_tree — build a subtree in one call.
+# Spec is recursive: each entry is {type (required), name?, properties?, script?, children?}.
+# Collapses what would otherwise be N scene.add_node + M scene.set_property + K script.attach
+# calls into a single request, which matters for any UI-heavy scene where hand-writing the
+# tree by calling the atomic tools balloons into dozens of round trips.
+# Properties use the same Coerce rules as scene.set_property (Vectors from arrays, Resources
+# auto-loaded from res:// paths, etc.).
+# On any failure, all nodes created during the call are rolled back so the scene doesn't
+# end up partly built.
+# Params: {parent_path?: ".", nodes: [TreeNode, ...]}
+#   TreeNode: {type: "ClassName", name?, properties?: {name: value}, script?: "res://...", children?: [TreeNode, ...]}
+static func build_tree(params: Dictionary) -> Dictionary:
+	var parent_path: String = params.get("parent_path", ".")
+	var nodes: Array = params.get("nodes", [])
+	if nodes.is_empty():
+		return _err(-32602, "missing 'nodes' (array of tree entries)")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var parent: Node = root if parent_path == "." or parent_path == "" else root.get_node_or_null(parent_path)
+	if parent == null:
+		return _err(-32001, "parent not found: %s" % parent_path)
+
+	var created_nodes: Array = []
+	var created_paths: Array = []
+	for spec in nodes:
+		var err_msg := _build_subtree(spec, parent, root, created_nodes, created_paths)
+		if err_msg != "":
+			# Rollback: free everything created during this call in reverse order.
+			for i in range(created_nodes.size() - 1, -1, -1):
+				var n: Node = created_nodes[i]
+				if is_instance_valid(n):
+					if n.get_parent():
+						n.get_parent().remove_child(n)
+					n.queue_free()
+			return _err(-32001, err_msg)
+
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"parent_path": parent_path,
+		"created": created_paths,
+		"count": created_paths.size(),
+	})
+
+
+# Recursive worker. Appends to the shared created_nodes/created_paths arrays so
+# the caller can roll back on failure. Returns "" on success, or an error message.
+static func _build_subtree(spec, parent: Node, scene_root: Node, created_nodes: Array, created_paths: Array) -> String:
+	if typeof(spec) != TYPE_DICTIONARY:
+		return "tree entry must be an object, got %s" % type_string(typeof(spec))
+
+	var node_type: String = spec.get("type", "")
+	if node_type == "":
+		return "tree entry missing 'type'"
+	if not ClassDB.class_exists(node_type):
+		return "unknown class: %s" % node_type
+	if not ClassDB.is_parent_class(node_type, "Node"):
+		return "type must derive from Node: %s" % node_type
+	if not ClassDB.can_instantiate(node_type):
+		return "class is not instantiable: %s" % node_type
+
+	var inst := ClassDB.instantiate(node_type) as Node
+	if inst == null:
+		return "failed to instantiate %s" % node_type
+
+	var node_name: String = spec.get("name", "")
+	if node_name != "":
+		inst.name = node_name
+
+	parent.add_child(inst)
+	inst.owner = scene_root
+	created_nodes.append(inst)
+	var this_path := String(scene_root.get_path_to(inst))
+	created_paths.append(this_path)
+
+	# Attach a script before applying properties so script-exported properties
+	# become settable in this same call.
+	var script_path: String = spec.get("script", "")
+	if script_path != "":
+		var script := ResourceLoader.load(script_path, "Script") as Script
+		if script == null:
+			return "failed to load script '%s' for '%s'" % [script_path, this_path]
+		inst.set_script(script)
+
+	var properties: Dictionary = spec.get("properties", {})
+	if not properties.is_empty():
+		var by_name: Dictionary = {}
+		for p in inst.get_property_list():
+			by_name[p.name] = p
+		for prop_name in properties:
+			if not by_name.has(prop_name):
+				return "property not found on %s ('%s'): %s" % [node_type, this_path, prop_name]
+			var prop_info: Dictionary = by_name[prop_name]
+			if int(prop_info.get("usage", 0)) & PROPERTY_USAGE_READ_ONLY:
+				return "property '%s' on '%s' is read-only" % [prop_name, this_path]
+			var assigned := _assign_property(inst, prop_name, prop_info, properties[prop_name])
+			if assigned.has("error"):
+				return "property '%s' on '%s': %s" % [prop_name, this_path, assigned.error]
+
+	var children: Array = spec.get("children", [])
+	for child_spec in children:
+		var child_err := _build_subtree(child_spec, inst, scene_root, created_nodes, created_paths)
+		if child_err != "":
+			return child_err
+
+	return ""
+
+
+# scene.call_method — invoke a method on a node in the currently-edited scene.
+# Args are coerced based on the target method's declared parameter types
+# (same rules as scene.set_property — including res:// → Resource auto-load).
+# Return value is serialized via Coerce.to_json so the echo is unambiguous data.
+# Params: {node_path, method, args?: []}
+static func call_method(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var method_name: String = params.get("method", "")
+	var args: Array = params.get("args", [])
+	if node_path == "" or method_name == "":
+		return _err(-32602, "missing 'node_path' or 'method'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	if not node.has_method(method_name):
+		return _err(-32602, "method not found: %s.%s" % [node.get_class(), method_name])
+
+	# Not typed as Array — _coerce_args returns a Dictionary on error, and strict
+	# typing would reject the assignment before we can branch on it.
+	var coerced_args = _coerce_args(node, method_name, args)
+	if coerced_args is Dictionary:
+		return coerced_args  # error passthrough
+	var result = node.callv(method_name, coerced_args)
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"node_path": node_path,
+		"method": method_name,
+		"return": Coerce.to_json(result),
+	})
+
+
+# Look up the method's parameter types and coerce each arg accordingly.
+# Returns a coerced Array, or a Dictionary with {"error": ...} on failure.
+static func _coerce_args(obj: Object, method_name: String, args: Array):
+	var method_info: Dictionary = {}
+	for m in obj.get_method_list():
+		if m.name == method_name:
+			method_info = m
+			break
+	var arg_types: Array = method_info.get("args", [])
+	var out: Array = []
+	for i in args.size():
+		if i < arg_types.size():
+			var coerced = Coerce.coerce(args[i], arg_types[i].type)
+			if coerced is Dictionary and coerced.has("_error"):
+				return _err(-32602, "arg %d: %s" % [i, coerced._error])
+			out.append(coerced)
+		else:
+			out.append(args[i])
+	return out
+
+
+# scene.current — describe the currently-edited scene, or {open: false} if none.
+static func current(_params: Dictionary) -> Dictionary:
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _ok({"open": false})
+	return _ok({
+		"open": true,
+		"path": root.scene_file_path,
+		"root_name": String(root.name),
+		"root_class": root.get_class(),
+	})
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/scene_tools.gd.uid

@@ -0,0 +1 @@
+uid://b2d5doqppnqvn

addons/agent_tools/tools/script_tools.gd

@@ -0,0 +1,171 @@
+@tool
+extends RefCounted
+
+# script.create — write a new .gd file with an extends/class_name header.
+# Params: {path: "res://scripts/Player.gd", extends?: "Node", class_name?: "Player",
+#          attach_to_node?: "Player", overwrite?: false}
+static func create(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var base_class: String = params.get("extends", "Node")
+	var class_name_val: String = params.get("class_name", "")
+	var overwrite: bool = params.get("overwrite", false)
+	var attach_to: String = params.get("attach_to_node", "")
+
+	if path == "" or not path.begins_with("res://") or not path.ends_with(".gd"):
+		return _err(-32602, "'path' must be 'res://...' ending in .gd")
+	if FileAccess.file_exists(path) and not overwrite:
+		return _err(-32602, "file exists (pass overwrite:true to replace): %s" % path)
+
+	var dir_path := path.get_base_dir()
+	if not DirAccess.dir_exists_absolute(dir_path):
+		var derr := DirAccess.make_dir_recursive_absolute(dir_path)
+		if derr != OK:
+			return _err(-32001, "mkdir failed (%d): %s" % [derr, dir_path])
+
+	var body := "extends %s\n" % base_class
+	if class_name_val != "":
+		body += "class_name %s\n" % class_name_val
+	body += "\n"
+
+	var f := FileAccess.open(path, FileAccess.WRITE)
+	if f == null:
+		return _err(-32001, "failed to open for write: %s" % path)
+	f.store_string(body)
+	f.close()
+
+	# Let the editor discover the new file so load() succeeds immediately.
+	EditorInterface.get_resource_filesystem().update_file(path)
+
+	var data := {"path": path, "extends": base_class, "class_name": class_name_val}
+
+	if attach_to != "":
+		var attach_res := _attach_script_to_node(attach_to, path)
+		if attach_res.has("error"):
+			return attach_res
+		data["attached_to"] = attach_to
+
+	return _ok(data)
+
+
+# script.attach — attach an existing script to a node in the currently-edited scene.
+# Params: {node_path, script_path}
+static func attach(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var script_path: String = params.get("script_path", "")
+	if node_path == "" or script_path == "":
+		return _err(-32602, "missing 'node_path' or 'script_path'")
+	return _attach_script_to_node(node_path, script_path)
+
+
+# script.patch — targeted edits to an existing .gd file. Two modes:
+#   replacements: [{old, new}] — each 'old' must appear exactly once in the file;
+#                                 fails atomically if any replacement is ambiguous
+#                                 or missing. Useful for surgical edits.
+#   full_source:  string       — overwrite the whole file (same as script.create
+#                                 overwrite, kept here for symmetry).
+# After writing, the tool parse-checks the result via ResourceLoader.load(); if
+# that fails, the original file is restored and an error is returned.
+# Params: {path, replacements?: [{old, new}], full_source?: string, dry_run?: false}
+static func patch(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var replacements: Array = params.get("replacements", [])
+	var full_source: String = params.get("full_source", "")
+	var dry_run: bool = params.get("dry_run", false)
+
+	if path == "" or not path.ends_with(".gd"):
+		return _err(-32602, "'path' must be a .gd file")
+	if not FileAccess.file_exists(path):
+		return _err(-32001, "file not found: %s" % path)
+	if replacements.is_empty() and full_source == "":
+		return _err(-32602, "provide either 'replacements' or 'full_source'")
+
+	var f := FileAccess.open(path, FileAccess.READ)
+	if f == null:
+		return _err(-32001, "could not read %s" % path)
+	var original := f.get_as_text()
+	f.close()
+
+	var patched: String = original
+	var applied: Array = []
+	if full_source != "":
+		patched = full_source
+		applied.append("full_source")
+	else:
+		for entry in replacements:
+			if typeof(entry) != TYPE_DICTIONARY or not entry.has("old") or not entry.has("new"):
+				return _err(-32602, "each replacement needs {old, new}")
+			var needle: String = str(entry.old)
+			var replacement: String = str(entry.new)
+			var count := patched.count(needle)
+			if count == 0:
+				return _err(-32602, "'old' string not found (would leave file unchanged): %s" % needle.substr(0, 60))
+			if count > 1:
+				return _err(-32602, "'old' string appears %d times — ambiguous. Include more context to make it unique: %s" % [count, needle.substr(0, 60)])
+			patched = patched.replace(needle, replacement)
+			applied.append("replaced %d chars" % needle.length())
+
+	if patched == original:
+		return _ok({"path": path, "changed": false, "note": "patched content identical to original"})
+
+	if dry_run:
+		return _ok({
+			"path": path,
+			"changed": true,
+			"applied": applied,
+			"new_length": patched.length(),
+			"original_length": original.length(),
+		})
+
+	# Write, then parse-check. If parse fails, restore.
+	var wf := FileAccess.open(path, FileAccess.WRITE)
+	if wf == null:
+		return _err(-32001, "could not write %s" % path)
+	wf.store_string(patched)
+	wf.close()
+
+	EditorInterface.get_resource_filesystem().update_file(path)
+	# Force a fresh parse — ResourceLoader.load returns a cached/placeholder
+	# Script for malformed sources, so we can't just null-check. Call reload()
+	# which actually re-parses and returns an Error.
+	var check := ResourceLoader.load(path, "Script", ResourceLoader.CACHE_MODE_REPLACE)
+	var parse_ok := false
+	if check != null and check is GDScript:
+		parse_ok = (check.reload(true) == OK)
+	if not parse_ok:
+		# Restore original to keep the file loadable.
+		var rf := FileAccess.open(path, FileAccess.WRITE)
+		if rf:
+			rf.store_string(original)
+			rf.close()
+			EditorInterface.get_resource_filesystem().update_file(path)
+		return _err(-32001, "patched script failed to parse — changes rolled back. Check Godot's Output panel for the exact error.")
+
+	return _ok({
+		"path": path,
+		"changed": true,
+		"applied": applied,
+		"new_length": patched.length(),
+	})
+
+
+static func _attach_script_to_node(node_path: String, script_path: String) -> Dictionary:
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+	var script := ResourceLoader.load(script_path, "Script") as Script
+	if script == null:
+		return _err(-32001, "failed to load script: %s" % script_path)
+	node.set_script(script)
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({"node_path": node_path, "script": script_path})
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/script_tools.gd.uid

@@ -0,0 +1 @@
+uid://bfewrbdp2o52o

addons/agent_tools/tools/signal_tools.gd

@@ -0,0 +1,148 @@
+@tool
+extends RefCounted
+
+# signal.connect — operates on the currently-edited scene.
+# Params: {from: "Player", signal: "died", to: ".", method: "_on_player_died"}
+# Uses CONNECT_PERSIST so the connection is serialized into the .tscn as a [connection] block.
+static func connect_signal(params: Dictionary) -> Dictionary:
+	var from_path: String = params.get("from", "")
+	var signal_name: String = params.get("signal", "")
+	var to_path: String = params.get("to", "")
+	var method_name: String = params.get("method", "")
+
+	for required in ["from", "signal", "to", "method"]:
+		if params.get(required, "") == "":
+			return _err(-32602, "missing '%s'" % required)
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+
+	var source: Node = root if from_path == "." else root.get_node_or_null(from_path)
+	if source == null:
+		return _err(-32001, "source node not found: %s" % from_path)
+	var target: Node = root if to_path == "." else root.get_node_or_null(to_path)
+	if target == null:
+		return _err(-32001, "target node not found: %s" % to_path)
+
+	if not source.has_signal(signal_name):
+		return _err(-32602, "%s has no signal '%s'" % [source.get_class(), signal_name])
+	if not target.has_method(method_name):
+		return _err(-32602, "target has no method '%s' — attach a script with it first" % method_name)
+
+	# Arity check: number of non-default signal args must be <= target method arg count.
+	var sig_info := _find_signal(source, signal_name)
+	var method_info := _find_method(target, method_name)
+	if sig_info and method_info:
+		var sig_args: int = (sig_info.args as Array).size()
+		var method_args: int = (method_info.args as Array).size()
+		if method_args < sig_args:
+			return _err(-32602, "arity mismatch: signal '%s' emits %d args, method '%s' accepts %d" %
+				[signal_name, sig_args, method_name, method_args])
+
+	var callable := Callable(target, method_name)
+	if source.is_connected(signal_name, callable):
+		return _ok({"already_connected": true})
+
+	var err := source.connect(signal_name, callable, CONNECT_PERSIST)
+	if err != OK:
+		return _err(-32001, "connect() returned %d" % err)
+
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({
+		"from": from_path,
+		"signal": signal_name,
+		"to": to_path,
+		"method": method_name,
+	})
+
+
+# signal.disconnect — remove a specific wiring in the currently-edited scene.
+# Params: {from, signal, to, method} — same shape as signal.connect.
+static func disconnect_signal(params: Dictionary) -> Dictionary:
+	for required in ["from", "signal", "to", "method"]:
+		if params.get(required, "") == "":
+			return _err(-32602, "missing '%s'" % required)
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+
+	var from_path: String = params["from"]
+	var to_path: String = params["to"]
+	var source: Node = root if from_path == "." else root.get_node_or_null(from_path)
+	var target: Node = root if to_path == "." else root.get_node_or_null(to_path)
+	if source == null:
+		return _err(-32001, "source not found: %s" % from_path)
+	if target == null:
+		return _err(-32001, "target not found: %s" % to_path)
+
+	var callable := Callable(target, params["method"])
+	if not source.is_connected(params["signal"], callable):
+		return _err(-32001, "no such connection")
+	source.disconnect(params["signal"], callable)
+	EditorInterface.mark_scene_as_unsaved()
+	return _ok({"disconnected": true})
+
+
+# signal.list — list outgoing connections on a node in the currently-edited scene.
+# Params: {node_path, persistent_only?: false}
+# Returns connections with their flags so callers can distinguish editor-serialized
+# connections from runtime ones.
+static func list_signals(params: Dictionary) -> Dictionary:
+	var node_path: String = params.get("node_path", "")
+	var persistent_only: bool = params.get("persistent_only", false)
+	if node_path == "":
+		return _err(-32602, "missing 'node_path'")
+
+	var root := EditorInterface.get_edited_scene_root()
+	if root == null:
+		return _err(-32001, "no scene open")
+	var node: Node = root if node_path == "." else root.get_node_or_null(node_path)
+	if node == null:
+		return _err(-32001, "node not found: %s" % node_path)
+
+	var outgoing: Array = []
+	for sig in node.get_signal_list():
+		var sig_name: String = sig.name
+		for c in node.get_signal_connection_list(sig_name):
+			var flags: int = c.flags
+			var is_persistent: bool = bool(flags & CONNECT_PERSIST)
+			if persistent_only and not is_persistent:
+				continue
+			var cb: Callable = c.callable
+			var target: Object = cb.get_object()
+			var target_path := ""
+			if target is Node and (target == root or root.is_ancestor_of(target)):
+				target_path = String(root.get_path_to(target))
+			outgoing.append({
+				"signal": sig_name,
+				"to": target_path,
+				"to_object": str(target) if target_path == "" else "",
+				"method": cb.get_method(),
+				"flags": flags,
+				"persistent": is_persistent,
+			})
+	return _ok({"node_path": node_path, "outgoing": outgoing})
+
+
+static func _find_signal(obj: Object, name: String) -> Dictionary:
+	for s in obj.get_signal_list():
+		if s.name == name:
+			return s
+	return {}
+
+
+static func _find_method(obj: Object, name: String) -> Dictionary:
+	for m in obj.get_method_list():
+		if m.name == name:
+			return m
+	return {}
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/signal_tools.gd.uid

@@ -0,0 +1 @@
+uid://cirt1dodck6pm

addons/agent_tools/tools/test_tools.gd

@@ -0,0 +1,230 @@
+@tool
+extends RefCounted
+
+# test.run — detect and run a GDScript test framework, return structured results.
+#
+# Supports GUT (addons/gut) and GdUnit4 (addons/gdUnit4). Auto-detects which is
+# installed; caller can force with 'framework'. Runs via headless subprocess so
+# it doesn't block the editor.
+#
+# Params: {
+#   framework?: "auto" | "gut" | "gdunit4",
+#   directory?: "res://test",   # test directory; defaults by framework
+#   pattern?: "test_*.gd",       # file name pattern; defaults by framework
+#   timeout_seconds?: 60,
+# }
+#
+# Returns: {
+#   framework: "gut" | "gdunit4",
+#   total, passed, failed, skipped,
+#   failures: [{name, file, line, message}],
+#   raw_output: string,
+#   exit_code,
+# }
+static func run(params: Dictionary) -> Dictionary:
+	var framework: String = params.get("framework", "auto")
+	var directory: String = params.get("directory", "")
+	var pattern: String = params.get("pattern", "")
+	var timeout_seconds: int = int(params.get("timeout_seconds", 60))
+
+	if framework == "auto":
+		framework = _detect_framework()
+		if framework == "":
+			return _err(-32001,
+				"no test framework detected. Install GUT (addons/gut) or GdUnit4 (addons/gdUnit4), " +
+				"or pass 'framework' explicitly.")
+
+	var runner_info := _runner_for(framework, directory, pattern)
+	if runner_info.has("_error"):
+		return _err(-32001, runner_info._error)
+
+	var exe := OS.get_executable_path()
+	var project_dir := ProjectSettings.globalize_path("res://")
+	var args: Array = ["--path", project_dir, "--headless"]
+	for a in runner_info.args:
+		args.append(str(a))
+
+	var output: Array = []
+	var exit_code := OS.execute(exe, args, output, true)
+	var stdout: String = ""
+	if output.size() > 0:
+		stdout = str(output[0])
+
+	var parsed: Dictionary
+	match framework:
+		"gut": parsed = _parse_gut_output(stdout)
+		"gdunit4": parsed = _parse_gdunit4_output(stdout)
+		_: parsed = {"total": 0, "passed": 0, "failed": 0, "skipped": 0, "failures": []}
+
+	parsed["framework"] = framework
+	parsed["exit_code"] = exit_code
+	# Strip ANSI escape codes from raw_output so the JSON wire is always clean.
+	# Godot's JSON.stringify doesn't escape every control char; leaving \x1b in
+	# the string breaks strict JSON parsers downstream.
+	parsed["raw_output"] = _strip_ansi(stdout)
+	parsed["command"] = "%s %s" % [exe, " ".join(args)]
+	return _ok(parsed)
+
+
+static func _detect_framework() -> String:
+	if DirAccess.dir_exists_absolute("res://addons/gut"):
+		return "gut"
+	if DirAccess.dir_exists_absolute("res://addons/gdUnit4"):
+		return "gdunit4"
+	return ""
+
+
+static func _runner_for(framework: String, directory: String, pattern: String) -> Dictionary:
+	match framework:
+		"gut":
+			var gut_cmdln := "res://addons/gut/gut_cmdln.gd"
+			if not FileAccess.file_exists(gut_cmdln):
+				return {"_error": "GUT framework dir exists but gut_cmdln.gd not found — GUT install may be broken"}
+			var args: Array = ["-s", gut_cmdln, "-gexit"]
+			if directory != "":
+				args.append("-gdir=%s" % directory)
+			else:
+				args.append("-gdir=res://test")
+			if pattern != "":
+				args.append("-gprefix=%s" % pattern)
+			return {"args": args}
+		"gdunit4":
+			# GdUnit4 ships GdUnitRunner.gd for CLI execution.
+			var runner := "res://addons/gdUnit4/bin/GdUnitCmdTool.gd"
+			if not FileAccess.file_exists(runner):
+				return {"_error": "GdUnit4 framework dir exists but GdUnitCmdTool.gd not found"}
+			var args: Array = ["-s", runner]
+			if directory != "":
+				args.append("--add=%s" % directory)
+			else:
+				args.append("--add=res://test")
+			return {"args": args}
+		_:
+			return {"_error": "unknown framework: %s (supported: gut, gdunit4)" % framework}
+
+
+# Parse GUT's text output. GUT's actual format (not the documented :-separated form):
+#
+#   Totals
+#   ------
+#   Scripts               1
+#   Tests                 3
+#   Passing Tests         2
+#   Failing Tests         1
+#   Pending Tests         0     <- optional, only if tests are pending
+#   Asserts             2/3
+#
+# Failures appear under a per-file header in the "Run Summary" section:
+#
+#   res://test/foo.gd
+#   - test_failing_case
+#       [Failed]:  <assertion message>
+#             at line 14
+#
+# Output has ANSI color escapes; strip them first so regex matches cleanly.
+static func _parse_gut_output(raw: String) -> Dictionary:
+	var text := _strip_ansi(raw)
+	var total := _gut_extract_count(text, "Tests")
+	var passed := _gut_extract_count(text, "Passing Tests")
+	var failed := _gut_extract_count(text, "Failing Tests")
+	var skipped := _gut_extract_count(text, "Pending Tests")
+
+	var failures: Array = _extract_gut_failures(text)
+
+	return {"total": total, "passed": passed, "failed": failed, "skipped": skipped, "failures": failures}
+
+
+# Match either "Label    12" (space-aligned) or "Label: 12" (colon form) on its own line.
+static func _gut_extract_count(text: String, label: String) -> int:
+	var re := RegEx.new()
+	re.compile("(?m)^\\s*" + label.replace(" ", "\\s+") + "\\s*[:\\s]\\s*(\\d+)\\s*$")
+	var m := re.search(text)
+	if m == null:
+		return 0
+	return int(m.get_string(1))
+
+
+# Walk the text top-to-bottom, tracking current test file (file headers are plain
+# `res://...` lines), collecting failing tests (`- test_name` with a following
+# `[Failed]:` assertion and `at line N`).
+static func _extract_gut_failures(text: String) -> Array:
+	var failures: Array = []
+	var lines: PackedStringArray = text.split("\n")
+	var current_file := ""
+	var current_test := ""
+	var current_message := ""
+	var i := 0
+	while i < lines.size():
+		var line: String = lines[i].trim_suffix("\r").strip_edges(false, true)  # strip only trailing
+		if line.begins_with("res://") and line.ends_with(".gd"):
+			current_file = line.strip_edges()
+			i += 1
+			continue
+		var trimmed := line.strip_edges()
+		if trimmed.begins_with("- "):
+			current_test = trimmed.substr(2).strip_edges()
+			current_message = ""
+		elif trimmed.begins_with("[Failed]:"):
+			current_message = trimmed.substr("[Failed]:".length()).strip_edges()
+		elif trimmed.begins_with("at line"):
+			var n_str := trimmed.substr("at line".length()).strip_edges()
+			var line_num := int(n_str)
+			if current_test != "" and current_file != "":
+				failures.append({
+					"name": current_test,
+					"file": current_file,
+					"line": line_num,
+					"message": current_message,
+				})
+				current_test = ""
+				current_message = ""
+		i += 1
+	return failures
+
+
+# Remove ANSI terminal escape codes (colors) from GUT's output so regex matches
+# don't get tripped up on things like "\x1b[32m".
+static func _strip_ansi(text: String) -> String:
+	var re := RegEx.new()
+	re.compile("\\x1b\\[[0-9;]*[A-Za-z]")
+	return re.sub(text, "", true)
+
+
+# GdUnit4's default output ends with a summary like:
+#   "| Tests | Executed | 12 | passed | 10 | skipped | 0 | failed | 2 | ... |"
+# and per-failure blocks with file:line.
+static func _parse_gdunit4_output(text: String) -> Dictionary:
+	var total := 0
+	var passed := 0
+	var failed := 0
+	var skipped := 0
+
+	var summary_re := RegEx.new()
+	summary_re.compile("Executed\\s*\\|\\s*(\\d+).*?passed\\s*\\|\\s*(\\d+).*?skipped\\s*\\|\\s*(\\d+).*?failed\\s*\\|\\s*(\\d+)")
+	var m := summary_re.search(text)
+	if m:
+		total = int(m.get_string(1))
+		passed = int(m.get_string(2))
+		skipped = int(m.get_string(3))
+		failed = int(m.get_string(4))
+
+	var failures: Array = []
+	var fail_re := RegEx.new()
+	fail_re.compile("(?m)FAILED\\s+(.+?)\\s*\\(at:\\s*(.+?):(\\d+)")
+	for fm in fail_re.search_all(text):
+		failures.append({
+			"name": fm.get_string(1),
+			"file": fm.get_string(2),
+			"line": int(fm.get_string(3)),
+			"message": "",
+		})
+
+	return {"total": total, "passed": passed, "failed": failed, "skipped": skipped, "failures": failures}
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/test_tools.gd.uid

@@ -0,0 +1 @@
+uid://blc15tr1vxiek

addons/agent_tools/tools/theme_tools.gd

@@ -0,0 +1,110 @@
+@tool
+extends RefCounted
+
+# theme.* — thin wrappers around Godot's awkward Theme API. Theme uses the
+# three-argument shape `(item_name, type_name, value)` where type_name is a
+# Control subclass like "Button", "Label", "LineEdit". resource.call_method
+# works but these helpers save the lookup.
+
+# theme.set_color — {path, item, type, color}
+#   color accepts [r,g,b(,a)] or '#rrggbb(aa)' (Coerce handles it).
+static func set_color(params: Dictionary) -> Dictionary:
+	return _set_entry(params, "color", "set_color", TYPE_COLOR)
+
+
+# theme.set_constant — {path, item, type, value: int}
+static func set_constant(params: Dictionary) -> Dictionary:
+	return _set_entry(params, "constant", "set_constant", TYPE_INT)
+
+
+# theme.set_font_size — {path, item, type, value: int}
+static func set_font_size(params: Dictionary) -> Dictionary:
+	return _set_entry(params, "font_size", "set_font_size", TYPE_INT)
+
+
+# theme.set_stylebox_flat — {path, item, type, properties: {bg_color, corner_radius_*, border_width_*, ...}}
+# Creates (or replaces) a StyleBoxFlat with the given properties and assigns
+# it to theme.<item>.<type>. Saves the two-step "create stylebox, set props,
+# assign" dance.
+static func set_stylebox_flat(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	var item_name: String = params.get("item", "")
+	var type_name: String = params.get("type", "")
+	var props: Dictionary = params.get("properties", {})
+	if path == "" or item_name == "" or type_name == "":
+		return _err(-32602, "missing 'path', 'item', or 'type'")
+
+	var theme := ResourceLoader.load(path) as Theme
+	if theme == null:
+		return _err(-32001, "failed to load theme: %s" % path)
+
+	var sb := StyleBoxFlat.new()
+	const Coerce := preload("res://addons/agent_tools/tools/_coerce.gd")
+	for k in props:
+		var prop_info := _find_property(sb, k)
+		if prop_info.is_empty():
+			return _err(-32602, "StyleBoxFlat has no property '%s'" % k)
+		var coerced = Coerce.coerce(props[k], prop_info.type)
+		if coerced is Dictionary and coerced.has("_error"):
+			return _err(-32602, "property %s: %s" % [k, coerced._error])
+		sb.set(k, coerced)
+
+	theme.set_stylebox(item_name, type_name, sb)
+	var save_err := ResourceSaver.save(theme, path)
+	if save_err != OK:
+		return _err(-32001, "theme save failed: %d" % save_err)
+	EditorInterface.get_resource_filesystem().update_file(path)
+	return _ok({
+		"path": path,
+		"item": item_name,
+		"type": type_name,
+		"applied_properties": props.keys(),
+	})
+
+
+static func _set_entry(params: Dictionary, expected_kind: String, setter_name: String, expected_type: int) -> Dictionary:
+	var path: String = params.get("path", "")
+	var item_name: String = params.get("item", "")
+	var type_name: String = params.get("type", "")
+	if path == "" or item_name == "" or type_name == "":
+		return _err(-32602, "missing 'path', 'item', or 'type'")
+
+	var theme := ResourceLoader.load(path) as Theme
+	if theme == null:
+		return _err(-32001, "failed to load theme: %s" % path)
+
+	const Coerce := preload("res://addons/agent_tools/tools/_coerce.gd")
+	var key := "color" if expected_kind == "color" else "value"
+	var raw = params.get(key)
+	if raw == null:
+		return _err(-32602, "missing '%s'" % key)
+	var coerced = Coerce.coerce(raw, expected_type)
+	if coerced is Dictionary and coerced.has("_error"):
+		return _err(-32602, coerced._error)
+
+	theme.call(setter_name, item_name, type_name, coerced)
+	var save_err := ResourceSaver.save(theme, path)
+	if save_err != OK:
+		return _err(-32001, "theme save failed: %d" % save_err)
+	EditorInterface.get_resource_filesystem().update_file(path)
+	return _ok({
+		"path": path,
+		"item": item_name,
+		"type": type_name,
+		"kind": expected_kind,
+	})
+
+
+static func _find_property(obj: Object, name: String) -> Dictionary:
+	for p in obj.get_property_list():
+		if p.name == name:
+			return p
+	return {}
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/theme_tools.gd.uid

@@ -0,0 +1 @@
+uid://b5p1j8mfeeeav

addons/agent_tools/tools/user_fs_tools.gd

@@ -0,0 +1,92 @@
+@tool
+extends RefCounted
+
+# Read-side tools for the `user://` data directory — where games write save files,
+# custom-level JSON, settings, etc. Agents couldn't peek at these without running
+# the editor and eyeballing. Kept separate from fs.list (which is res://-only)
+# because the semantics are different: user:// is runtime-written state, res:// is
+# project source.
+
+# user_fs.read — return a text file's content from user://.
+# Params: {path}
+static func read(params: Dictionary) -> Dictionary:
+	var path: String = params.get("path", "")
+	if path == "":
+		return _err(-32602, "missing 'path'")
+	if not path.begins_with("user://"):
+		return _err(-32602, "path must begin with 'user://'")
+	if not _within_sandbox(path, "user://"):
+		return _err(-32602, "path escapes the user:// sandbox ('..' traversal not allowed): %s" % path)
+	var f := FileAccess.open(path, FileAccess.READ)
+	if f == null:
+		return _err(-32001, "failed to open: %s (error %d)" % [path, FileAccess.get_open_error()])
+	var size_bytes := f.get_length()
+	var content := f.get_as_text()
+	f.close()
+	return _ok({
+		"path": path,
+		"content": content,
+		"size_bytes": size_bytes,
+	})
+
+
+# user_fs.list — list entries under a user:// directory.
+# Params: {dir?: "user://", recursive?: false}
+static func list(params: Dictionary) -> Dictionary:
+	var dir_path: String = params.get("dir", "user://")
+	var recursive: bool = params.get("recursive", false)
+
+	if not dir_path.begins_with("user://"):
+		return _err(-32602, "dir must begin with 'user://'")
+	if not _within_sandbox(dir_path, "user://"):
+		return _err(-32602, "dir escapes the user:// sandbox ('..' traversal not allowed): %s" % dir_path)
+
+	var files: Array = []
+	var dirs: Array = []
+	_walk(dir_path, files, dirs, recursive)
+
+	files.sort()
+	dirs.sort()
+	return _ok({
+		"dir": dir_path,
+		"files": files,
+		"dirs": dirs,
+		"count": files.size(),
+	})
+
+
+static func _walk(dir_path: String, out_files: Array, out_dirs: Array, recursive: bool) -> void:
+	var d := DirAccess.open(dir_path)
+	if d == null:
+		return
+	d.list_dir_begin()
+	while true:
+		var name := d.get_next()
+		if name == "":
+			break
+		if name.begins_with("."):
+			continue
+		var full := dir_path.path_join(name)
+		if d.current_is_dir():
+			out_dirs.append(full)
+			if recursive:
+				_walk(full, out_files, out_dirs, recursive)
+		else:
+			out_files.append(full)
+	d.list_dir_end()
+
+
+# Path-traversal guard — see fs_tools._within_sandbox. `begins_with("user://")`
+# is not a sandbox; `..` segments resolve against the real filesystem.
+static func _within_sandbox(path: String, prefix: String) -> bool:
+	var root := ProjectSettings.globalize_path(prefix).simplify_path().trim_suffix("/")
+	var abs := ProjectSettings.globalize_path(path).simplify_path()
+	return abs == root or abs.begins_with(root + "/")
+
+
+static func _ok(data) -> Dictionary:
+	return {"data": data}
+
+
+static func _err(code: int, msg: String) -> Dictionary:
+	return {"error": {"code": code, "message": msg}}

addons/agent_tools/tools/user_fs_tools.gd.uid

@@ -0,0 +1 @@
+uid://btej8otgjy0kj