diff --git a/internal/controller/battle_test.go b/internal/controller/battle_test.go
index a204a4f..d87eb89 100644
--- a/internal/controller/battle_test.go
+++ b/internal/controller/battle_test.go
@@ -97,7 +97,7 @@ func TestFilterBattleOpponents(t *testing.T) {
 	assert.NoError(t, c.CreateShips(Race_1_idx, Race_1_Gunship, R1_Planet_1_num, 15))  // 2
 	undefeatedShip := ship
 	undefeatedShip.Shields = 100
-	assert.NoError(t, c.CreateShipType(Race_1_idx, undefeatedShip.Name, undefeatedShip.Drive.F(), int(undefeatedShip.Armament), undefeatedShip.Weapons.F(), undefeatedShip.Shields.F(), undefeatedShip.Cargo.F()))
+	assert.NoError(t, c.ShipClassCreate(Race_1_idx, undefeatedShip.Name, undefeatedShip.Drive.F(), int(undefeatedShip.Armament), undefeatedShip.Weapons.F(), undefeatedShip.Shields.F(), undefeatedShip.Cargo.F()))
 	assert.NoError(t, c.CreateShips(Race_1_idx, undefeatedShip.Name, R1_Planet_1_num, 1)) // 3
 
 	cacheProbability := make(map[int]map[int]float64)
@@ -152,11 +152,11 @@ func TestProduceBattles(t *testing.T) {
 	c.CreateShipsUnsafe_T(Race_1_idx, c.MustShipClass(Race_1_idx, Race_1_Gunship).ID, R0_Planet_0_num, 11)
 
 	// Race_C
-	assert.NoError(t, c.CreateShipType(race_C_idx, Cruiser.Name, Cruiser.Drive.F(), int(Cruiser.Armament), Cruiser.Weapons.F(), Cruiser.Shields.F(), Cruiser.Cargo.F()))
+	assert.NoError(t, c.ShipClassCreate(race_C_idx, Cruiser.Name, Cruiser.Drive.F(), int(Cruiser.Armament), Cruiser.Weapons.F(), Cruiser.Shields.F(), Cruiser.Cargo.F()))
 	c.CreateShipsUnsafe_T(race_C_idx, c.MustShipClass(race_C_idx, Cruiser.Name).ID, R0_Planet_0_num, 12)
 
 	// Race_D
-	assert.NoError(t, c.CreateShipType(race_D_idx, Cruiser.Name, Cruiser.Drive.F(), int(Cruiser.Armament), Cruiser.Weapons.F(), Cruiser.Shields.F(), Cruiser.Cargo.F()))
+	assert.NoError(t, c.ShipClassCreate(race_D_idx, Cruiser.Name, Cruiser.Drive.F(), int(Cruiser.Armament), Cruiser.Weapons.F(), Cruiser.Shields.F(), Cruiser.Cargo.F()))
 	c.CreateShipsUnsafe_T(race_D_idx, c.MustShipClass(race_D_idx, Cruiser.Name).ID, R0_Planet_0_num, 13)
 
 	battle := controller.ProduceBattles(c)
diff --git a/internal/controller/command.go b/internal/controller/command.go
index 9b20b0a..7ab7fe2 100644
--- a/internal/controller/command.go
+++ b/internal/controller/command.go
@@ -54,12 +54,109 @@ func (c Controller) UpdateRelation(actor, acceptor string, v string) error {
 	return c.Cache.UpdateRelation(ri, other, rel)
 }
 
+func (c *Controller) CreateShipType(actor, typeName string, drive float64, ammo int, weapons, shileds, cargo float64) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.ShipClassCreate(ri, typeName, drive, ammo, weapons, shileds, cargo)
+}
+
+func (c *Controller) MergeShipType(actor, name, targetName string) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipClassMerge(ri, name, targetName)
+}
+
+func (c *Controller) DeleteShipType(actor, typeName string) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipClassRemove(ri, typeName)
+}
+
+func (c *Controller) LoadCargo(actor string, groupIndex uint, cargoType string, ships uint, quantity float64) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	ct, ok := game.CargoTypeSet[cargoType]
+	if !ok {
+		return e.NewCargoTypeInvalidError(cargoType)
+	}
+	return c.Cache.shipGroupLoad(ri, groupIndex, ct, ships, quantity)
+}
+
+func (c *Controller) UnloadCargo(actor string, groupIndex uint, ships uint, quantity float64) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipGroupUnload(ri, groupIndex, ships, quantity)
+}
+
+func (c *Controller) SendGroup(actor string, groupIndex, planetNumber, quantity uint) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipGroupSend(ri, groupIndex, planetNumber, quantity)
+}
+
+func (c *Controller) UpgradeGroup(actor string, groupIndex uint, techInput string, limitShips uint, limitLevel float64) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipGroupUpgrade(ri, groupIndex, techInput, limitShips, limitLevel)
+}
+
+func (c *Controller) JoinEqualGroups(actor string) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	c.Cache.shipGroupMerge(ri)
+	return nil
+}
+
+func (c *Controller) BreakGroup(actor string, groupIndex, quantity uint) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.ShipGroupBreak(ri, groupIndex, quantity)
+}
+
+func (c *Controller) DisassembleGroup(actor string, groupIndex, quantity uint) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipGroupDismantle(ri, groupIndex, quantity)
+}
+
+func (c *Controller) TransferGroup(actor, acceptor string, groupIndex, quantity uint) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	riAccept, err := c.Cache.validRace(acceptor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.shipGroupTransfer(ri, riAccept, groupIndex, quantity)
+}
+
 func (c *Controller) JoinShipGroupToFleet(actor, fleetName string, group, count uint) error {
 	ri, err := c.Cache.validActor(actor)
 	if err != nil {
 		return err
 	}
-	return c.Cache.JoinShipGroupToFleet(ri, fleetName, group, count)
+	return c.Cache.ShipGroupJoinFleet(ri, fleetName, group, count)
 }
 
 func (c *Controller) JoinFleets(actor, fleetSourceName, fleetTargetName string) error {
@@ -67,7 +164,7 @@ func (c *Controller) JoinFleets(actor, fleetSourceName, fleetTargetName string)
 	if err != nil {
 		return err
 	}
-	return c.Cache.JoinFleets(ri, fleetSourceName, fleetTargetName)
+	return c.Cache.fleetMerge(ri, fleetSourceName, fleetTargetName)
 }
 
 func (c *Controller) SendFleet(actor, fleetName string, planetNumber uint) error {
@@ -79,7 +176,23 @@ func (c *Controller) SendFleet(actor, fleetName string, planetNumber uint) error
 	if !ok {
 		return e.NewEntityNotExistsError("fleet %q", fleetName)
 	}
-	return c.Cache.SendFleet(ri, fi, planetNumber)
+	return c.Cache.FleetSend(ri, fi, planetNumber)
+}
+
+func (c *Controller) CreateScience(actor, typeName string, drive, weapons, shields, cargo float64) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.ScienceCreate(ri, typeName, drive, weapons, shields, cargo)
+}
+
+func (c *Controller) DeleteScience(actor, typeName string) error {
+	ri, err := c.Cache.validActor(actor)
+	if err != nil {
+		return err
+	}
+	return c.Cache.ScienceRemove(ri, typeName)
 }
 
 func (c *Controller) RenamePlanet(actor string, planetNumber int, typeName string) error {
@@ -87,7 +200,7 @@ func (c *Controller) RenamePlanet(actor string, planetNumber int, typeName strin
 	if err != nil {
 		return err
 	}
-	return c.Cache.RenamePlanet(ri, planetNumber, typeName)
+	return c.Cache.PlanetRename(ri, planetNumber, typeName)
 }
 
 func (c *Controller) PlanetProduction(actor string, planetNumber int, prodType, subject string) error {
@@ -116,7 +229,7 @@ func (c *Controller) PlanetProduction(actor string, planetNumber int, prodType,
 	default:
 		return e.NewProductionInvalidError(prodType)
 	}
-	return c.Cache.PlanetProduction(ri, planetNumber, prod, subject)
+	return c.Cache.PlanetProduce(ri, planetNumber, prod, subject)
 }
 
 func (c *Controller) SetRoute(actor, loadType string, origin, destination uint) error {
@@ -128,7 +241,7 @@ func (c *Controller) SetRoute(actor, loadType string, origin, destination uint)
 	if !ok {
 		return e.NewCargoTypeInvalidError(loadType)
 	}
-	return c.Cache.SetRoute(ri, rt, origin, destination)
+	return c.Cache.PlanetRouteSet(ri, rt, origin, destination)
 }
 
 func (c *Controller) RemoveRoute(actor, loadType string, origin uint) error {
@@ -140,118 +253,5 @@ func (c *Controller) RemoveRoute(actor, loadType string, origin uint) error {
 	if !ok {
 		return e.NewCargoTypeInvalidError(loadType)
 	}
-	return c.Cache.RemoveRoute(ri, rt, origin)
-}
-
-func (c *Controller) CreateScience(actor, typeName string, drive, weapons, shields, cargo float64) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.CreateScience(ri, typeName, drive, weapons, shields, cargo)
-}
-
-func (c *Controller) DeleteScience(actor, typeName string) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.DeleteScience(ri, typeName)
-}
-
-func (c *Controller) CreateShipType(actor, typeName string, drive float64, ammo int, weapons, shileds, cargo float64) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.CreateShipType(ri, typeName, drive, ammo, weapons, shileds, cargo)
-}
-
-func (c *Controller) MergeShipType(actor, name, targetName string) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.MergeShipType(ri, name, targetName)
-}
-
-func (c *Controller) DeleteShipType(actor, typeName string) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.DeleteShipType(ri, typeName)
-}
-
-func (c *Controller) SendGroup(actor string, groupIndex, planetNumber, quantity uint) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.SendGroup(ri, groupIndex, planetNumber, quantity)
-}
-
-func (c *Controller) UpgradeGroup(actor string, groupIndex uint, techInput string, limitShips uint, limitLevel float64) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.UpgradeGroup(ri, groupIndex, techInput, limitShips, limitLevel)
-}
-
-func (c *Controller) JoinEqualGroups(actor string) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	c.Cache.JoinEqualGroups(ri)
-	return nil
-}
-
-func (c *Controller) BreakGroup(actor string, groupIndex, quantity uint) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.BreakGroup(ri, groupIndex, quantity)
-}
-
-func (c *Controller) DisassembleGroup(actor string, groupIndex, quantity uint) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.DisassembleGroup(ri, groupIndex, quantity)
-}
-
-func (c *Controller) LoadCargo(actor string, groupIndex uint, cargoType string, ships uint, quantity float64) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	ct, ok := game.CargoTypeSet[cargoType]
-	if !ok {
-		return e.NewCargoTypeInvalidError(cargoType)
-	}
-	return c.Cache.LoadCargo(ri, groupIndex, ct, ships, quantity)
-}
-
-func (c *Controller) UnloadCargo(actor string, groupIndex uint, ships uint, quantity float64) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.UnloadCargo(ri, groupIndex, ships, quantity)
-}
-
-func (c *Controller) TransferGroup(actor, acceptor string, groupIndex, quantity uint) error {
-	ri, err := c.Cache.validActor(actor)
-	if err != nil {
-		return err
-	}
-	riAccept, err := c.Cache.validRace(acceptor)
-	if err != nil {
-		return err
-	}
-	return c.Cache.TransferGroup(ri, riAccept, groupIndex, quantity)
+	return c.Cache.PlanetRouteRemove(ri, rt, origin)
 }
diff --git a/internal/controller/controller_test.go b/internal/controller/controller_test.go
index 6c45edf..1a812fd 100644
--- a/internal/controller/controller_test.go
+++ b/internal/controller/controller_test.go
@@ -133,13 +133,13 @@ func newCache() (*controller.Cache, *controller.Controller) {
 	// g := newGame()
 	// c := controller.NewCache(g)
 	c := ctl.Cache
-	assertNoError(c.CreateShipType(Race_0_idx, Race_0_Gunship, 60, 3, 30, 100, 0))
-	assertNoError(c.CreateShipType(Race_0_idx, Race_0_Freighter, 8, 0, 0, 2, 10))
-	assertNoError(c.CreateShipType(Race_0_idx, ShipType_Cruiser, Cruiser.Drive.F(), int(Cruiser.Armament), Cruiser.Weapons.F(), Cruiser.Shields.F(), Cruiser.Cargo.F()))
+	assertNoError(c.ShipClassCreate(Race_0_idx, Race_0_Gunship, 60, 3, 30, 100, 0))
+	assertNoError(c.ShipClassCreate(Race_0_idx, Race_0_Freighter, 8, 0, 0, 2, 10))
+	assertNoError(c.ShipClassCreate(Race_0_idx, ShipType_Cruiser, Cruiser.Drive.F(), int(Cruiser.Armament), Cruiser.Weapons.F(), Cruiser.Shields.F(), Cruiser.Cargo.F()))
 
-	assertNoError(c.CreateShipType(Race_1_idx, Race_1_Gunship, 60, 3, 30, 100, 0))
-	assertNoError(c.CreateShipType(Race_1_idx, Race_1_Freighter, 8, 0, 0, 2, 10))
-	assertNoError(c.CreateShipType(Race_1_idx, ShipType_Cruiser, 15, 2, 15, 15, 0)) // same name - different type (why.)
+	assertNoError(c.ShipClassCreate(Race_1_idx, Race_1_Gunship, 60, 3, 30, 100, 0))
+	assertNoError(c.ShipClassCreate(Race_1_idx, Race_1_Freighter, 8, 0, 0, 2, 10))
+	assertNoError(c.ShipClassCreate(Race_1_idx, ShipType_Cruiser, 15, 2, 15, 15, 0)) // same name - different type (why.)
 
 	// ctl := controller.NewRepoController(nil)
 	// ctl.Cache = c
diff --git a/internal/controller/fleet.go b/internal/controller/fleet.go
index fda1a75..66b95b0 100644
--- a/internal/controller/fleet.go
+++ b/internal/controller/fleet.go
@@ -100,7 +100,7 @@ func (c *Cache) FleetSpeedAndMass(fi int) (float64, float64) {
 	return speed, mass
 }
 
-func (c *Cache) JoinShipGroupToFleet(ri int, fleetName string, groupIndex, quantity uint) (err error) {
+func (c *Cache) ShipGroupJoinFleet(ri int, fleetName string, groupIndex, quantity uint) (err error) {
 	c.validateRaceIndex(ri)
 	name, ok := util.ValidateTypeName(fleetName)
 	if !ok {
@@ -146,7 +146,7 @@ func (c *Cache) JoinShipGroupToFleet(ri int, fleetName string, groupIndex, quant
 		sgi = nsgi
 	}
 
-	c.ShipGroupJoinFleet(sgi, &c.g.Fleets[fi].ID)
+	c.internalShipGroupJoinFleet(sgi, &c.g.Fleets[fi].ID)
 
 	if oldFleetID != nil {
 		keepOldFleet := false
@@ -170,7 +170,7 @@ func (c *Cache) JoinShipGroupToFleet(ri int, fleetName string, groupIndex, quant
 	return nil
 }
 
-func (c *Cache) JoinFleets(ri int, fleetSourceName, fleetTargetName string) (err error) {
+func (c *Cache) fleetMerge(ri int, fleetSourceName, fleetTargetName string) (err error) {
 	fiSource, ok := c.fleetIndex(ri, fleetSourceName)
 	if !ok {
 		return e.NewEntityNotExistsError("source fleet %s", fleetSourceName)
diff --git a/internal/controller/fleet_send.go b/internal/controller/fleet_send.go
index aa4ecb0..9136a1f 100644
--- a/internal/controller/fleet_send.go
+++ b/internal/controller/fleet_send.go
@@ -6,7 +6,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/util"
 )
 
-func (c *Cache) SendFleet(ri, fi int, planetNumber uint) error {
+func (c *Cache) FleetSend(ri, fi int, planetNumber uint) error {
 	c.validateRaceIndex(ri)
 	c.validateFleetIndex(fi)
 	fleetState := c.FleetState(c.g.Fleets[fi].ID)
diff --git a/internal/controller/planet.go b/internal/controller/planet.go
index 3a41cf2..0256c84 100644
--- a/internal/controller/planet.go
+++ b/internal/controller/planet.go
@@ -11,7 +11,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/util"
 )
 
-func (c *Cache) RenamePlanet(ri int, number int, name string) error {
+func (c *Cache) PlanetRename(ri int, number int, name string) error {
 	n, ok := util.ValidateTypeName(name)
 	if !ok {
 		return e.NewEntityTypeNameValidationError("%q", n)
@@ -30,7 +30,7 @@ func (c *Cache) RenamePlanet(ri int, number int, name string) error {
 	return nil
 }
 
-func (c *Cache) PlanetProduction(ri int, number int, prod game.ProductionType, subj string) error {
+func (c *Cache) PlanetProduce(ri int, number int, prod game.ProductionType, subj string) error {
 	c.validateRaceIndex(ri)
 	if number < 0 {
 		return e.NewPlanetNumberError(number)
diff --git a/internal/controller/planet_test.go b/internal/controller/planet_test.go
index ea2e2e1..eee6330 100644
--- a/internal/controller/planet_test.go
+++ b/internal/controller/planet_test.go
@@ -163,7 +163,7 @@ func TestProduceShips(t *testing.T) {
 	progress := *c.MustPlanet(R0_Planet_0_num).Production.Progress
 	assert.InDelta(t, 0.45, progress.F(), 0.001)
 
-	assert.NoError(t, c.CreateShipType(Race_0_idx, "Drone", 1, 0, 0, 0, 0))
+	assert.NoError(t, c.ShipClassCreate(Race_0_idx, "Drone", 1, 0, 0, 0, 0))
 	assert.NoError(t, c.CreateShips(Race_0_idx, "Drone", uint(pn), 7))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 1)
 	assert.Equal(t, uint(7), c.ShipGroup(0).Number)
@@ -364,7 +364,7 @@ func TestListProducingPlanets(t *testing.T) {
 
 func TestTurnPlanetProductions(t *testing.T) {
 	c, g := newCache()
-	assert.NoError(t, c.CreateShipType(Race_0_idx, "Drone", 1, 0, 0, 0, 0))
+	assert.NoError(t, c.ShipClassCreate(Race_0_idx, "Drone", 1, 0, 0, 0, 0))
 	assert.NoError(t, g.CreateScience(Race_0.Name, "Equality", 0.25, 0.25, 0.25, 0.25))
 	c.MustPlanet(R0_Planet_0_num).Resources = 10.
 	c.MustPlanet(R0_Planet_0_num).Size = 1000.
diff --git a/internal/controller/route.go b/internal/controller/route.go
index b5a70c6..7fcbe43 100644
--- a/internal/controller/route.go
+++ b/internal/controller/route.go
@@ -13,7 +13,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/util"
 )
 
-func (c *Cache) SetRoute(ri int, rt game.RouteType, origin, destination uint) error {
+func (c *Cache) PlanetRouteSet(ri int, rt game.RouteType, origin, destination uint) error {
 	c.validateRaceIndex(ri)
 	p1, ok := c.Planet(origin)
 	if !ok {
@@ -36,7 +36,7 @@ func (c *Cache) SetRoute(ri int, rt game.RouteType, origin, destination uint) er
 	return nil
 }
 
-func (c *Cache) RemoveRoute(ri int, rt game.RouteType, origin uint) error {
+func (c *Cache) PlanetRouteRemove(ri int, rt game.RouteType, origin uint) error {
 	c.validateRaceIndex(ri)
 	p1, ok := c.Planet(origin)
 	if !ok {
diff --git a/internal/controller/science.go b/internal/controller/science.go
index 1b975b9..013f53c 100644
--- a/internal/controller/science.go
+++ b/internal/controller/science.go
@@ -10,7 +10,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/util"
 )
 
-func (c *Cache) CreateScience(ri int, name string, drive, weapons, shileds, cargo float64) error {
+func (c *Cache) ScienceCreate(ri int, name string, drive, weapons, shileds, cargo float64) error {
 	c.validateRaceIndex(ri)
 	n, ok := util.ValidateTypeName(name)
 	if !ok {
@@ -47,7 +47,7 @@ func (c *Cache) CreateScience(ri int, name string, drive, weapons, shileds, carg
 	return nil
 }
 
-func (c *Cache) DeleteScience(ri int, name string) error {
+func (c *Cache) ScienceRemove(ri int, name string) error {
 	c.validateRaceIndex(ri)
 	sc := slices.IndexFunc(c.g.Race[ri].Sciences, func(s game.Science) bool { return s.Name == name })
 	if sc < 0 {
diff --git a/internal/controller/ship_class.go b/internal/controller/ship_class.go
index 7b49294..805890a 100644
--- a/internal/controller/ship_class.go
+++ b/internal/controller/ship_class.go
@@ -11,7 +11,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/util"
 )
 
-func (c *Cache) CreateShipType(ri int, typeName string, drive float64, ammo int, weapons, shileds, cargo float64) error {
+func (c *Cache) ShipClassCreate(ri int, typeName string, drive float64, ammo int, weapons, shileds, cargo float64) error {
 	c.validateRaceIndex(ri)
 	if err := validateShipTypeValues(drive, ammo, weapons, shileds, cargo); err != nil {
 		return err
@@ -37,7 +37,7 @@ func (c *Cache) CreateShipType(ri int, typeName string, drive float64, ammo int,
 	return nil
 }
 
-func (c *Cache) MergeShipType(ri int, sourceName, targetName string) error {
+func (c *Cache) shipClassMerge(ri int, sourceName, targetName string) error {
 	c.validateRaceIndex(ri)
 	sourceClass, sti, ok := c.ShipClass(ri, sourceName)
 
@@ -85,7 +85,7 @@ func (c *Cache) MergeShipType(ri int, sourceName, targetName string) error {
 	return nil
 }
 
-func (c *Cache) DeleteShipType(ri int, name string) error {
+func (c *Cache) shipClassRemove(ri int, name string) error {
 	c.validateRaceIndex(ri)
 	st, i, ok := c.ShipClass(ri, name)
 	if !ok {
diff --git a/internal/controller/ship_group.go b/internal/controller/ship_group.go
index d50d83e..d428bd6 100644
--- a/internal/controller/ship_group.go
+++ b/internal/controller/ship_group.go
@@ -53,7 +53,7 @@ func (c *Cache) ShipGroup(groupIndex int) *game.ShipGroup {
 	return &c.g.ShipGroups[groupIndex]
 }
 
-func (c *Cache) ShipGroupJoinFleet(groupIndex int, fID *uuid.UUID) {
+func (c *Cache) internalShipGroupJoinFleet(groupIndex int, fID *uuid.UUID) {
 	c.validateShipGroupIndex(groupIndex)
 	c.g.ShipGroups[groupIndex].FleetID = fID
 	c.invalidateFleetCache()
@@ -140,7 +140,7 @@ func (c *Cache) DeleteKilledShipGroups() {
 func (c *Cache) TurnMergeEqualShipGroups() {
 	for i := range c.listRaceActingIdx() {
 		c.transferPendingGroups(i)
-		c.JoinEqualGroups(i)
+		c.shipGroupMerge(i)
 	}
 }
 
@@ -152,7 +152,8 @@ func (c *Cache) transferPendingGroups(ri int) {
 	}
 }
 
-func (c *Cache) JoinEqualGroups(ri int) {
+// shipGroupMerge merges several equal ship groups into one
+func (c *Cache) shipGroupMerge(ri int) {
 	c.validateRaceIndex(ri)
 	raceGroups := make([]game.ShipGroup, 0)
 	for sg := range c.listShipGroups(ri) {
@@ -194,7 +195,7 @@ func (c *Cache) JoinEqualGroups(ri int) {
 	}
 }
 
-func (c *Cache) DisassembleGroup(ri int, groupIndex, quantity uint) error {
+func (c *Cache) shipGroupDismantle(ri int, groupIndex, quantity uint) error {
 	sgi, ok := c.raceShipGroupIndex(ri, groupIndex)
 	if !ok {
 		return e.NewEntityNotExistsError("group #%d", groupIndex)
@@ -252,7 +253,7 @@ func (c *Cache) DisassembleGroup(ri int, groupIndex, quantity uint) error {
 // Корабль может нести только один тип груза одновременно.
 // Возможные типы груза - это колонисты, сырье и промышленность.
 // Груз может быть доставлен на борт корабля с Вашей или не занятой планеты, на которой он имеется.
-func (c *Cache) LoadCargo(ri int, groupIndex uint, ct game.CargoType, ships uint, quantity float64) error {
+func (c *Cache) shipGroupLoad(ri int, groupIndex uint, ct game.CargoType, ships uint, quantity float64) error {
 	if ships == 0 && quantity > 0 {
 		return e.NewCargoQuantityWithoutGroupBreakError()
 	}
@@ -322,7 +323,7 @@ func (c *Cache) LoadCargo(ri int, groupIndex uint, ct game.CargoType, ships uint
 
 // Промышленность и Сырье могут быть выгружены на любой планете.
 // Колонисты могут быть высажены только на планеты, принадлежащие Вам или на необитаемые планеты.
-func (c *Cache) UnloadCargo(ri int, groupIndex uint, ships uint, quantity float64) error {
+func (c *Cache) shipGroupUnload(ri int, groupIndex uint, ships uint, quantity float64) error {
 	c.validateRaceIndex(ri)
 	if ships == 0 && quantity > 0 {
 		return e.NewCargoQuantityWithoutGroupBreakError()
@@ -404,7 +405,7 @@ func (c *Cache) unsafeUnloadCargo(sgi int, q float64) {
 	p.UnpackCapital()
 }
 
-func (c *Cache) TransferGroup(ri, riAccept int, groupIndex, quantity uint) (err error) {
+func (c *Cache) shipGroupTransfer(ri, riAccept int, groupIndex, quantity uint) (err error) {
 	if ri == riAccept {
 		return e.NewSameRaceError(c.g.Race[riAccept].Name)
 	}
@@ -429,7 +430,7 @@ func (c *Cache) TransferGroup(ri, riAccept int, groupIndex, quantity uint) (err
 		return e.NewGiveawayGroupShipsTypeNotEqualError("race %q, ship type %q", c.g.Race[riAccept].Name, c.g.Race[riAccept].ShipTypes[stAcc].Name)
 	}
 	if stAcc < 0 {
-		err = c.CreateShipType(riAccept,
+		err = c.ShipClassCreate(riAccept,
 			st.Name,
 			st.Drive.F(),
 			int(st.Armament),
@@ -461,7 +462,7 @@ func (c *Cache) TransferGroup(ri, riAccept int, groupIndex, quantity uint) (err
 	return nil
 }
 
-func (c *Cache) BreakGroup(ri int, groupIndex, quantity uint) error {
+func (c *Cache) ShipGroupBreak(ri int, groupIndex, quantity uint) error {
 	c.validateRaceIndex(ri)
 	sgi := -1
 	for i := range c.ShipGroupsIndex() {
@@ -483,7 +484,7 @@ func (c *Cache) BreakGroup(ri int, groupIndex, quantity uint) error {
 	}
 
 	if quantity == 0 || quantity == c.ShipGroup(sgi).Number {
-		c.ShipGroupJoinFleet(sgi, nil)
+		c.internalShipGroupJoinFleet(sgi, nil)
 	} else {
 		if _, err := c.breakGroupSafe(ri, groupIndex, quantity); err != nil {
 			return err
diff --git a/internal/controller/ship_group_send.go b/internal/controller/ship_group_send.go
index 27cbb03..52a2da0 100644
--- a/internal/controller/ship_group_send.go
+++ b/internal/controller/ship_group_send.go
@@ -6,7 +6,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/util"
 )
 
-func (c *Cache) SendGroup(ri int, groupIndex, planetNumber, quantity uint) error {
+func (c *Cache) shipGroupSend(ri int, groupIndex, planetNumber, quantity uint) error {
 	c.validateRaceIndex(ri)
 
 	sgi, ok := c.raceShipGroupIndex(ri, groupIndex)
@@ -51,7 +51,7 @@ func (c *Cache) SendGroup(ri int, groupIndex, planetNumber, quantity uint) error
 
 	if p1.Number == p2.Number {
 		c.UnsendShips(c.ShipGroup(sgi))
-		c.JoinEqualGroups(ri)
+		c.shipGroupMerge(ri)
 		return nil
 	}
 
diff --git a/internal/controller/ship_group_test.go b/internal/controller/ship_group_test.go
index 6b18758..1008d78 100644
--- a/internal/controller/ship_group_test.go
+++ b/internal/controller/ship_group_test.go
@@ -127,7 +127,7 @@ func TestBreakGroup(t *testing.T) {
 	assert.Len(t, slices.Collect(c.ListFleets(Race_0_idx)), 1)
 
 	// group #1 -> group #3 (5 new, 8 left)
-	assert.NoError(t, c.BreakGroup(Race_0_idx, 1, 5)) // group #3 (2)
+	assert.NoError(t, c.ShipGroupBreak(Race_0_idx, 1, 5)) // group #3 (2)
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 3)
 	assert.Equal(t, uint(8), c.ShipGroup(0).Number)
 	assert.NotNil(t, c.ShipGroup(0).FleetID)
@@ -138,15 +138,15 @@ func TestBreakGroup(t *testing.T) {
 
 	// group #1 -> group #4 (2 new, 6 left)
 	c.ShipGroup(0).CargoType = game.CargoColonist.Ref()
-	c.ShipGroup(0).Load = 32.8                        // 8 ships
-	assert.NoError(t, c.BreakGroup(Race_0_idx, 1, 2)) // group #4 (3)
+	c.ShipGroup(0).Load = 32.8                            // 8 ships
+	assert.NoError(t, c.ShipGroupBreak(Race_0_idx, 1, 2)) // group #4 (3)
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 4)
 	assert.Equal(t, uint(6), c.ShipGroup(0).Number)
 	assert.NotNil(t, c.ShipGroup(0).FleetID)
 	assert.Equal(t, uint(2), c.ShipGroup(3).Number)
 	assert.Equal(t, uint(4), c.ShipGroup(3).Index)
 	assert.Nil(t, c.ShipGroup(3).FleetID)
-	assert.NoError(t, c.JoinShipGroupToFleet(Race_0_idx, fleet, 4, 0))
+	assert.NoError(t, c.ShipGroupJoinFleet(Race_0_idx, fleet, 4, 0))
 	assert.NotNil(t, c.ShipGroup(3).FleetID)
 
 	assert.Equal(t, game.CargoColonist.Ref(), c.ShipGroup(0).CargoType)
diff --git a/internal/controller/ship_group_upgrade.go b/internal/controller/ship_group_upgrade.go
index fd753ea..eabae26 100644
--- a/internal/controller/ship_group_upgrade.go
+++ b/internal/controller/ship_group_upgrade.go
@@ -9,7 +9,7 @@ import (
 	"github.com/iliadenisov/galaxy/internal/model/game"
 )
 
-func (c *Cache) UpgradeGroup(ri int, groupIndex uint, techInput string, limitShips uint, limitLevel float64) error {
+func (c *Cache) shipGroupUpgrade(ri int, groupIndex uint, techInput string, limitShips uint, limitLevel float64) error {
 	c.validateRaceIndex(ri)
 	sgi, ok := c.raceShipGroupIndex(ri, groupIndex)
 	if !ok {
diff --git a/internal/model/rest/command.go b/internal/model/rest/command.go
index 2ba4d69..d8b16b3 100644
--- a/internal/model/rest/command.go
+++ b/internal/model/rest/command.go
@@ -10,8 +10,28 @@ type Command struct {
 type CommandType string
 
 const (
-	CommandTypeVote     CommandType = "vote"
-	CommandTypeRelation CommandType = "declarePeace"
+	CommandTypeQuit               CommandType = "quit"
+	CommandTypeVote               CommandType = "vote"
+	CommandTypeRelation           CommandType = "declarePeace"
+	CommandShipClassCreate        CommandType = "shipClassCreate"
+	CommandShipClassMerge         CommandType = "shipClassMerge"
+	CommandShipClassRemove        CommandType = "shipClassRemove"
+	CommandShipGroupLoad          CommandType = "shipGroupLoad"
+	CommandShipGroupUnload        CommandType = "shipGroupUnload"
+	CommandShipGroupSend          CommandType = "shipGroupSend"
+	CommandShipGroupUpgrade       CommandType = "shipGroupUpgrade"
+	CommandShipGroupMerge         CommandType = "shipGroupMerge"
+	CommandShipGroupDismantle     CommandType = "shipGroupDismantle"
+	CommandShipGroupTransfer      CommandType = "shipGroupTransfer"
+	CommandTypeShipGroupJoinFleet CommandType = "shipGroupJoinFleet"
+	CommandTypeFleetMerge         CommandType = "fleetMerge"
+	CommandTypeFleetSend          CommandType = "fleetSend"
+	CommandTypeScienceCreate      CommandType = "scienceCreate"
+	CommandTypeScienceRemove      CommandType = "scienceRemove"
+	CommandTypePlanetRename       CommandType = "planetRename"
+	CommandTypePlanetProduce      CommandType = "planetProduce"
+	CommandTypePlanetRouteSet     CommandType = "planetRouteSet"
+	CommandTypePlanetRouteRemove  CommandType = "planetRouteRemove"
 )
 
 type CommandMeta struct {