diff --git a/godot/autoloads/TurnManager.gd b/godot/autoloads/TurnManager.gd
index 6ce6e2a..19f4bfe 100644
--- a/godot/autoloads/TurnManager.gd
+++ b/godot/autoloads/TurnManager.gd
@@ -2,12 +2,17 @@ extends Node
 
 ## Owns generic turn and phase progression.
 ## This manager emits EventBus turn notifications and mirrors turn fields into
-## GameState, but does not implement commit/reveal or gameplay-specific phases.
+## GameState. Commit/reveal phases only coordinate state and WebBridge calls;
+## gameplay resolution remains outside this manager.
 
 const SETUP: StringName = &"setup"
 const START: StringName = &"start"
 const MAIN: StringName = &"main"
 const END: StringName = &"end"
+const COMMIT: StringName = &"commit"
+const REVEAL: StringName = &"reveal"
+const RESOLVE: StringName = &"resolve"
+const FINALIZED: StringName = &"finalized"
 
 var current_turn: int = 0
 var active_player_id: StringName = &""
@@ -24,11 +29,13 @@ func reset() -> void:
 func begin_turn(player_id: StringName) -> void:
 	current_turn += 1
 	active_player_id = player_id
+	var previous_phase := current_phase
 	current_phase = START
 	_sync_game_state()
 
 	if has_node("/root/EventBus") and EventBus.has_method("emit_turn_started"):
 		EventBus.emit_turn_started(current_turn, active_player_id)
+	_emit_turn_phase_changed(previous_phase, current_phase)
 
 
 func change_phase(next_phase: StringName) -> void:
@@ -37,9 +44,56 @@ func change_phase(next_phase: StringName) -> void:
 
 	var previous_phase := current_phase
 	current_phase = next_phase
+	_sync_game_state()
+
+	_emit_turn_phase_changed(previous_phase, current_phase)
+
+
+func begin_commit(player_id: StringName) -> void:
+	begin_turn(player_id)
+	change_phase(COMMIT)
+
+
+## Expected payload shape:
+## {
+##   "player_id": String, "turn_number": int, "commitment": Variant,
+##   "context": Dictionary optional
+## }
+## The payload is forwarded unchanged to WebBridge.commit_action().
+func submit_commit(payload: Dictionary) -> void:
+	_set_game_state_metadata("last_commit_payload", payload.duplicate(true))
+	_call_web_bridge(&"commit_action", payload)
+
+
+func begin_reveal() -> void:
+	change_phase(REVEAL)
+
+
+## Expected payload shape:
+## {
+##   "player_id": String, "turn_number": int, "reveal": Variant,
+##   "proof": Variant optional, "context": Dictionary optional
+## }
+## The payload is forwarded unchanged to WebBridge.reveal_action().
+func submit_reveal(payload: Dictionary) -> void:
+	_set_game_state_metadata("last_reveal_payload", payload.duplicate(true))
+	_call_web_bridge(&"reveal_action", payload)
 
-	if has_node("/root/EventBus") and EventBus.has_method("emit_turn_phase_changed"):
-		EventBus.emit_turn_phase_changed(current_turn, previous_phase, current_phase)
+
+func resolve_turn(result: Dictionary = {}) -> void:
+	_set_game_state_metadata("last_resolution_result", result.duplicate(true))
+	change_phase(RESOLVE)
+
+
+## Expected result shape:
+## {
+##   "turn_number": int, "status": String,
+##   "receipt": Dictionary optional, "state": Dictionary optional
+## }
+## This records the caller-provided finalisation result without contract details.
+func finalise_turn(result: Dictionary = {}) -> void:
+	_set_game_state_metadata("last_finalisation_result", result.duplicate(true))
+	change_phase(FINALIZED)
 
 
 func end_turn() -> void:
@@ -47,9 +101,9 @@ func end_turn() -> void:
 	var ended_player_id := active_player_id
 	var previous_phase := current_phase
 	current_phase = END
+	_sync_game_state()
 
-	if has_node("/root/EventBus") and EventBus.has_method("emit_turn_phase_changed"):
-		EventBus.emit_turn_phase_changed(ended_turn, previous_phase, current_phase)
+	_emit_turn_phase_changed(previous_phase, current_phase)
 	if has_node("/root/EventBus") and EventBus.has_method("emit_turn_ended"):
 		EventBus.emit_turn_ended(ended_turn, ended_player_id)
 
@@ -59,3 +113,63 @@ func _sync_game_state() -> void:
 		return
 	GameState.current_turn = current_turn
 	GameState.active_player_id = active_player_id
+	_set_game_state_metadata("current_phase", String(current_phase))
+
+
+func _set_game_state_metadata(key: String, value) -> void:
+	if not has_node("/root/GameState"):
+		return
+	if typeof(GameState.metadata) != TYPE_DICTIONARY:
+		GameState.metadata = {}
+	GameState.metadata[key] = value
+
+
+func _call_web_bridge(method_name: StringName, payload: Dictionary) -> bool:
+	if not has_node("/root/WebBridge"):
+		_emit_web3_error(
+			method_name,
+			"WebBridge autoload is unavailable.",
+			{"path": "/root/WebBridge"}
+		)
+		return false
+
+	var bridge := get_node("/root/WebBridge")
+	if not bridge.has_method(method_name):
+		_emit_web3_error(
+			method_name,
+			"WebBridge does not implement the requested method.",
+			{"method": String(method_name)}
+		)
+		return false
+
+	if bridge.has_method("is_available") and bridge.call("is_available") != true:
+		_emit_web3_error(
+			method_name,
+			"WebBridge is not available in this runtime.",
+			{
+				"path": "/root/WebBridge",
+				"method": String(method_name),
+			}
+		)
+		return false
+
+	bridge.call(method_name, payload)
+	return true
+
+
+func _emit_turn_phase_changed(previous_phase: StringName, next_phase: StringName) -> void:
+	if previous_phase == next_phase:
+		return
+	if has_node("/root/EventBus") and EventBus.has_method("emit_turn_phase_changed"):
+		EventBus.emit_turn_phase_changed(current_turn, previous_phase, next_phase)
+
+
+func _emit_web3_error(
+	action: StringName,
+	message: String,
+	details: Dictionary = {}
+) -> void:
+	if has_node("/root/EventBus") and EventBus.has_method("emit_web3_error"):
+		EventBus.emit_web3_error(action, message, details)
+	else:
+		push_warning("%s: %s" % [action, message])