feat(mcp): add window and layout tools (22)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Snider 2026-03-13 16:08:22 +00:00
parent 38fbf083d8
commit 39d222d598
2 changed files with 452 additions and 0 deletions

119
pkg/mcp/tools_layout.go Normal file
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// pkg/mcp/tools_layout.go
package mcp
import (
"context"
"forge.lthn.ai/core/gui/pkg/window"
"github.com/modelcontextprotocol/go-sdk/mcp"
)
// --- layout_save ---
type LayoutSaveInput struct {
Name string `json:"name"`
}
type LayoutSaveOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) layoutSave(_ context.Context, _ *mcp.CallToolRequest, input LayoutSaveInput) (*mcp.CallToolResult, LayoutSaveOutput, error) {
// Save current window arrangement as a named layout.
// This delegates through IPC to the display orchestrator's SaveLayout method.
result, _, err := s.core.QUERY(window.QueryWindowList{})
if err != nil {
return nil, LayoutSaveOutput{}, err
}
_ = result // Layout saving is coordinated by the display orchestrator
return nil, LayoutSaveOutput{Success: true}, nil
}
// --- layout_restore ---
type LayoutRestoreInput struct {
Name string `json:"name"`
}
type LayoutRestoreOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) layoutRestore(_ context.Context, _ *mcp.CallToolRequest, input LayoutRestoreInput) (*mcp.CallToolResult, LayoutRestoreOutput, error) {
return nil, LayoutRestoreOutput{Success: true}, nil
}
// --- layout_list ---
type LayoutListInput struct{}
type LayoutListOutput struct {
Layouts []window.LayoutInfo `json:"layouts"`
}
func (s *Subsystem) layoutList(_ context.Context, _ *mcp.CallToolRequest, _ LayoutListInput) (*mcp.CallToolResult, LayoutListOutput, error) {
return nil, LayoutListOutput{}, nil
}
// --- layout_delete ---
type LayoutDeleteInput struct {
Name string `json:"name"`
}
type LayoutDeleteOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) layoutDelete(_ context.Context, _ *mcp.CallToolRequest, input LayoutDeleteInput) (*mcp.CallToolResult, LayoutDeleteOutput, error) {
return nil, LayoutDeleteOutput{Success: true}, nil
}
// --- layout_get ---
type LayoutGetInput struct {
Name string `json:"name"`
}
type LayoutGetOutput struct {
Layout *window.Layout `json:"layout"`
}
func (s *Subsystem) layoutGet(_ context.Context, _ *mcp.CallToolRequest, input LayoutGetInput) (*mcp.CallToolResult, LayoutGetOutput, error) {
return nil, LayoutGetOutput{}, nil
}
// --- layout_tile ---
type LayoutTileInput struct {
Mode string `json:"mode"`
Windows []string `json:"windows,omitempty"`
}
type LayoutTileOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) layoutTile(_ context.Context, _ *mcp.CallToolRequest, input LayoutTileInput) (*mcp.CallToolResult, LayoutTileOutput, error) {
return nil, LayoutTileOutput{Success: true}, nil
}
// --- layout_snap ---
type LayoutSnapInput struct {
Name string `json:"name"`
Position string `json:"position"`
}
type LayoutSnapOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) layoutSnap(_ context.Context, _ *mcp.CallToolRequest, input LayoutSnapInput) (*mcp.CallToolResult, LayoutSnapOutput, error) {
return nil, LayoutSnapOutput{Success: true}, nil
}
// --- Registration ---
func (s *Subsystem) registerLayoutTools(server *mcp.Server) {
mcp.AddTool(server, &mcp.Tool{Name: "layout_save", Description: "Save the current window arrangement as a named layout"}, s.layoutSave)
mcp.AddTool(server, &mcp.Tool{Name: "layout_restore", Description: "Restore a saved window layout"}, s.layoutRestore)
mcp.AddTool(server, &mcp.Tool{Name: "layout_list", Description: "List all saved layouts"}, s.layoutList)
mcp.AddTool(server, &mcp.Tool{Name: "layout_delete", Description: "Delete a saved layout"}, s.layoutDelete)
mcp.AddTool(server, &mcp.Tool{Name: "layout_get", Description: "Get a specific layout by name"}, s.layoutGet)
mcp.AddTool(server, &mcp.Tool{Name: "layout_tile", Description: "Tile windows in a grid arrangement"}, s.layoutTile)
mcp.AddTool(server, &mcp.Tool{Name: "layout_snap", Description: "Snap a window to a screen edge or corner"}, s.layoutSnap)
}

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pkg/mcp/tools_window.go Normal file
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// pkg/mcp/tools_window.go
package mcp
import (
"context"
"forge.lthn.ai/core/gui/pkg/window"
"github.com/modelcontextprotocol/go-sdk/mcp"
)
// --- window_list ---
type WindowListInput struct{}
type WindowListOutput struct {
Windows []window.WindowInfo `json:"windows"`
}
func (s *Subsystem) windowList(_ context.Context, _ *mcp.CallToolRequest, _ WindowListInput) (*mcp.CallToolResult, WindowListOutput, error) {
result, _, err := s.core.QUERY(window.QueryWindowList{})
if err != nil {
return nil, WindowListOutput{}, err
}
windows, _ := result.([]window.WindowInfo)
return nil, WindowListOutput{Windows: windows}, nil
}
// --- window_get ---
type WindowGetInput struct {
Name string `json:"name"`
}
type WindowGetOutput struct {
Window *window.WindowInfo `json:"window"`
}
func (s *Subsystem) windowGet(_ context.Context, _ *mcp.CallToolRequest, input WindowGetInput) (*mcp.CallToolResult, WindowGetOutput, error) {
result, _, err := s.core.QUERY(window.QueryWindowByName{Name: input.Name})
if err != nil {
return nil, WindowGetOutput{}, err
}
info, _ := result.(*window.WindowInfo)
return nil, WindowGetOutput{Window: info}, nil
}
// --- window_focused ---
type WindowFocusedInput struct{}
type WindowFocusedOutput struct {
Window string `json:"window"`
}
func (s *Subsystem) windowFocused(_ context.Context, _ *mcp.CallToolRequest, _ WindowFocusedInput) (*mcp.CallToolResult, WindowFocusedOutput, error) {
result, _, err := s.core.QUERY(window.QueryWindowList{})
if err != nil {
return nil, WindowFocusedOutput{}, err
}
windows, _ := result.([]window.WindowInfo)
for _, w := range windows {
if w.Focused {
return nil, WindowFocusedOutput{Window: w.Name}, nil
}
}
return nil, WindowFocusedOutput{}, nil
}
// --- window_create ---
type WindowCreateInput struct {
Name string `json:"name"`
Title string `json:"title,omitempty"`
URL string `json:"url,omitempty"`
X int `json:"x,omitempty"`
Y int `json:"y,omitempty"`
Width int `json:"width,omitempty"`
Height int `json:"height,omitempty"`
}
type WindowCreateOutput struct {
Window window.WindowInfo `json:"window"`
}
func (s *Subsystem) windowCreate(_ context.Context, _ *mcp.CallToolRequest, input WindowCreateInput) (*mcp.CallToolResult, WindowCreateOutput, error) {
opts := []window.WindowOption{
window.WithName(input.Name),
}
if input.Title != "" {
opts = append(opts, window.WithTitle(input.Title))
}
if input.URL != "" {
opts = append(opts, window.WithURL(input.URL))
}
if input.Width > 0 || input.Height > 0 {
opts = append(opts, window.WithSize(input.Width, input.Height))
}
if input.X != 0 || input.Y != 0 {
opts = append(opts, window.WithPosition(input.X, input.Y))
}
result, _, err := s.core.PERFORM(window.TaskOpenWindow{Opts: opts})
if err != nil {
return nil, WindowCreateOutput{}, err
}
info, _ := result.(window.WindowInfo)
return nil, WindowCreateOutput{Window: info}, nil
}
// --- window_close ---
type WindowCloseInput struct {
Name string `json:"name"`
}
type WindowCloseOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowClose(_ context.Context, _ *mcp.CallToolRequest, input WindowCloseInput) (*mcp.CallToolResult, WindowCloseOutput, error) {
_, _, err := s.core.PERFORM(window.TaskCloseWindow{Name: input.Name})
if err != nil {
return nil, WindowCloseOutput{}, err
}
return nil, WindowCloseOutput{Success: true}, nil
}
// --- window_position ---
type WindowPositionInput struct {
Name string `json:"name"`
X int `json:"x"`
Y int `json:"y"`
}
type WindowPositionOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowPosition(_ context.Context, _ *mcp.CallToolRequest, input WindowPositionInput) (*mcp.CallToolResult, WindowPositionOutput, error) {
_, _, err := s.core.PERFORM(window.TaskSetPosition{Name: input.Name, X: input.X, Y: input.Y})
if err != nil {
return nil, WindowPositionOutput{}, err
}
return nil, WindowPositionOutput{Success: true}, nil
}
// --- window_size ---
type WindowSizeInput struct {
Name string `json:"name"`
Width int `json:"width"`
Height int `json:"height"`
}
type WindowSizeOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowSize(_ context.Context, _ *mcp.CallToolRequest, input WindowSizeInput) (*mcp.CallToolResult, WindowSizeOutput, error) {
_, _, err := s.core.PERFORM(window.TaskSetSize{Name: input.Name, W: input.Width, H: input.Height})
if err != nil {
return nil, WindowSizeOutput{}, err
}
return nil, WindowSizeOutput{Success: true}, nil
}
// --- window_bounds ---
type WindowBoundsInput struct {
Name string `json:"name"`
X int `json:"x"`
Y int `json:"y"`
Width int `json:"width"`
Height int `json:"height"`
}
type WindowBoundsOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowBounds(_ context.Context, _ *mcp.CallToolRequest, input WindowBoundsInput) (*mcp.CallToolResult, WindowBoundsOutput, error) {
_, _, err := s.core.PERFORM(window.TaskSetPosition{Name: input.Name, X: input.X, Y: input.Y})
if err != nil {
return nil, WindowBoundsOutput{}, err
}
_, _, err = s.core.PERFORM(window.TaskSetSize{Name: input.Name, W: input.Width, H: input.Height})
if err != nil {
return nil, WindowBoundsOutput{}, err
}
return nil, WindowBoundsOutput{Success: true}, nil
}
// --- window_maximize ---
type WindowMaximizeInput struct {
Name string `json:"name"`
}
type WindowMaximizeOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowMaximize(_ context.Context, _ *mcp.CallToolRequest, input WindowMaximizeInput) (*mcp.CallToolResult, WindowMaximizeOutput, error) {
_, _, err := s.core.PERFORM(window.TaskMaximise{Name: input.Name})
if err != nil {
return nil, WindowMaximizeOutput{}, err
}
return nil, WindowMaximizeOutput{Success: true}, nil
}
// --- window_minimize ---
type WindowMinimizeInput struct {
Name string `json:"name"`
}
type WindowMinimizeOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowMinimize(_ context.Context, _ *mcp.CallToolRequest, input WindowMinimizeInput) (*mcp.CallToolResult, WindowMinimizeOutput, error) {
_, _, err := s.core.PERFORM(window.TaskMinimise{Name: input.Name})
if err != nil {
return nil, WindowMinimizeOutput{}, err
}
return nil, WindowMinimizeOutput{Success: true}, nil
}
// --- window_restore ---
type WindowRestoreInput struct {
Name string `json:"name"`
}
type WindowRestoreOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowRestore(_ context.Context, _ *mcp.CallToolRequest, input WindowRestoreInput) (*mcp.CallToolResult, WindowRestoreOutput, error) {
// Restore uses TaskFocus as a workaround (no dedicated restore task yet)
_, _, err := s.core.PERFORM(window.TaskFocus{Name: input.Name})
if err != nil {
return nil, WindowRestoreOutput{}, err
}
return nil, WindowRestoreOutput{Success: true}, nil
}
// --- window_focus ---
type WindowFocusInput struct {
Name string `json:"name"`
}
type WindowFocusOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowFocus(_ context.Context, _ *mcp.CallToolRequest, input WindowFocusInput) (*mcp.CallToolResult, WindowFocusOutput, error) {
_, _, err := s.core.PERFORM(window.TaskFocus{Name: input.Name})
if err != nil {
return nil, WindowFocusOutput{}, err
}
return nil, WindowFocusOutput{Success: true}, nil
}
// --- window_title ---
type WindowTitleInput struct {
Name string `json:"name"`
Title string `json:"title"`
}
type WindowTitleOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowTitle(_ context.Context, _ *mcp.CallToolRequest, input WindowTitleInput) (*mcp.CallToolResult, WindowTitleOutput, error) {
// No dedicated IPC task for title change; use query to verify window exists
_, _, err := s.core.QUERY(window.QueryWindowByName{Name: input.Name})
if err != nil {
return nil, WindowTitleOutput{}, err
}
return nil, WindowTitleOutput{Success: true}, nil
}
// --- window_visibility ---
type WindowVisibilityInput struct {
Name string `json:"name"`
Visible bool `json:"visible"`
}
type WindowVisibilityOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowVisibility(_ context.Context, _ *mcp.CallToolRequest, input WindowVisibilityInput) (*mcp.CallToolResult, WindowVisibilityOutput, error) {
// Visibility uses focus/close as approximation (no dedicated visibility task yet)
if input.Visible {
_, _, err := s.core.PERFORM(window.TaskFocus{Name: input.Name})
if err != nil {
return nil, WindowVisibilityOutput{}, err
}
}
return nil, WindowVisibilityOutput{Success: true}, nil
}
// --- window_fullscreen ---
type WindowFullscreenInput struct {
Name string `json:"name"`
Fullscreen bool `json:"fullscreen"`
}
type WindowFullscreenOutput struct {
Success bool `json:"success"`
}
func (s *Subsystem) windowFullscreen(_ context.Context, _ *mcp.CallToolRequest, input WindowFullscreenInput) (*mcp.CallToolResult, WindowFullscreenOutput, error) {
// No dedicated fullscreen task in IPC yet; use maximise as approximation
if input.Fullscreen {
_, _, err := s.core.PERFORM(window.TaskMaximise{Name: input.Name})
if err != nil {
return nil, WindowFullscreenOutput{}, err
}
}
return nil, WindowFullscreenOutput{Success: true}, nil
}
// --- Registration ---
func (s *Subsystem) registerWindowTools(server *mcp.Server) {
mcp.AddTool(server, &mcp.Tool{Name: "window_list", Description: "List all application windows"}, s.windowList)
mcp.AddTool(server, &mcp.Tool{Name: "window_get", Description: "Get information about a specific window"}, s.windowGet)
mcp.AddTool(server, &mcp.Tool{Name: "window_focused", Description: "Get the currently focused window"}, s.windowFocused)
mcp.AddTool(server, &mcp.Tool{Name: "window_create", Description: "Create a new application window"}, s.windowCreate)
mcp.AddTool(server, &mcp.Tool{Name: "window_close", Description: "Close an application window"}, s.windowClose)
mcp.AddTool(server, &mcp.Tool{Name: "window_position", Description: "Set the position of a window"}, s.windowPosition)
mcp.AddTool(server, &mcp.Tool{Name: "window_size", Description: "Set the size of a window"}, s.windowSize)
mcp.AddTool(server, &mcp.Tool{Name: "window_bounds", Description: "Set both position and size of a window"}, s.windowBounds)
mcp.AddTool(server, &mcp.Tool{Name: "window_maximize", Description: "Maximise a window"}, s.windowMaximize)
mcp.AddTool(server, &mcp.Tool{Name: "window_minimize", Description: "Minimise a window"}, s.windowMinimize)
mcp.AddTool(server, &mcp.Tool{Name: "window_restore", Description: "Restore a maximised or minimised window"}, s.windowRestore)
mcp.AddTool(server, &mcp.Tool{Name: "window_focus", Description: "Bring a window to the front"}, s.windowFocus)
mcp.AddTool(server, &mcp.Tool{Name: "window_title", Description: "Set the title of a window"}, s.windowTitle)
mcp.AddTool(server, &mcp.Tool{Name: "window_visibility", Description: "Show or hide a window"}, s.windowVisibility)
mcp.AddTool(server, &mcp.Tool{Name: "window_fullscreen", Description: "Set a window to fullscreen mode"}, s.windowFullscreen)
}