@@ -1,372 +0,0 @@
-package tools
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"os"
-	"path/filepath"
-	"time"
-
-	"github.com/charmbracelet/crush/internal/config"
-	"github.com/charmbracelet/crush/internal/diff"
-	"github.com/charmbracelet/crush/internal/history"
-	"github.com/charmbracelet/crush/internal/logging"
-	"github.com/charmbracelet/crush/internal/lsp"
-	"github.com/charmbracelet/crush/internal/permission"
-)
-
-type PatchParams struct {
-	PatchText string `json:"patch_text"`
-}
-
-type PatchResponseMetadata struct {
-	FilesChanged []string `json:"files_changed"`
-	Additions    int      `json:"additions"`
-	Removals     int      `json:"removals"`
-}
-
-type patchTool struct {
-	lspClients  map[string]*lsp.Client
-	permissions permission.Service
-	files       history.Service
-}
-
-const (
-	PatchToolName    = "patch"
-	patchDescription = `Applies a patch to multiple files in one operation. This tool is useful for making coordinated changes across multiple files.
-
-The patch text must follow this format:
-*** Begin Patch
-*** Update File: /path/to/file
-@@ Context line (unique within the file)
- Line to keep
--Line to remove
-+Line to add
- Line to keep
-*** Add File: /path/to/new/file
-+Content of the new file
-+More content
-*** Delete File: /path/to/file/to/delete
-*** End Patch
-
-Before using this tool:
-1. Use the FileRead tool to understand the files' contents and context
-2. Verify all file paths are correct (use the LS tool)
-
-CRITICAL REQUIREMENTS FOR USING THIS TOOL:
-
-1. UNIQUENESS: Context lines MUST uniquely identify the specific sections you want to change
-2. PRECISION: All whitespace, indentation, and surrounding code must match exactly
-3. VALIDATION: Ensure edits result in idiomatic, correct code
-4. PATHS: Always use absolute file paths (starting with /)
-
-The tool will apply all changes in a single atomic operation.`
-)
-
-func NewPatchTool(lspClients map[string]*lsp.Client, permissions permission.Service, files history.Service) BaseTool {
-	return &patchTool{
-		lspClients:  lspClients,
-		permissions: permissions,
-		files:       files,
-	}
-}
-
-func (p *patchTool) Info() ToolInfo {
-	return ToolInfo{
-		Name:        PatchToolName,
-		Description: patchDescription,
-		Parameters: map[string]any{
-			"patch_text": map[string]any{
-				"type":        "string",
-				"description": "The full patch text that describes all changes to be made",
-			},
-		},
-		Required: []string{"patch_text"},
-	}
-}
-
-func (p *patchTool) Run(ctx context.Context, call ToolCall) (ToolResponse, error) {
-	var params PatchParams
-	if err := json.Unmarshal([]byte(call.Input), ¶ms); err != nil {
-		return NewTextErrorResponse("invalid parameters"), nil
-	}
-
-	if params.PatchText == "" {
-		return NewTextErrorResponse("patch_text is required"), nil
-	}
-
-	// Identify all files needed for the patch and verify they've been read
-	filesToRead := diff.IdentifyFilesNeeded(params.PatchText)
-	for _, filePath := range filesToRead {
-		absPath := filePath
-		if !filepath.IsAbs(absPath) {
-			wd := config.WorkingDirectory()
-			absPath = filepath.Join(wd, absPath)
-		}
-
-		if getLastReadTime(absPath).IsZero() {
-			return NewTextErrorResponse(fmt.Sprintf("you must read the file %s before patching it. Use the FileRead tool first", filePath)), nil
-		}
-
-		fileInfo, err := os.Stat(absPath)
-		if err != nil {
-			if os.IsNotExist(err) {
-				return NewTextErrorResponse(fmt.Sprintf("file not found: %s", absPath)), nil
-			}
-			return ToolResponse{}, fmt.Errorf("failed to access file: %w", err)
-		}
-
-		if fileInfo.IsDir() {
-			return NewTextErrorResponse(fmt.Sprintf("path is a directory, not a file: %s", absPath)), nil
-		}
-
-		modTime := fileInfo.ModTime()
-		lastRead := getLastReadTime(absPath)
-		if modTime.After(lastRead) {
-			return NewTextErrorResponse(
-				fmt.Sprintf("file %s has been modified since it was last read (mod time: %s, last read: %s)",
-					absPath, modTime.Format(time.RFC3339), lastRead.Format(time.RFC3339),
-				)), nil
-		}
-	}
-
-	// Check for new files to ensure they don't already exist
-	filesToAdd := diff.IdentifyFilesAdded(params.PatchText)
-	for _, filePath := range filesToAdd {
-		absPath := filePath
-		if !filepath.IsAbs(absPath) {
-			wd := config.WorkingDirectory()
-			absPath = filepath.Join(wd, absPath)
-		}
-
-		_, err := os.Stat(absPath)
-		if err == nil {
-			return NewTextErrorResponse(fmt.Sprintf("file already exists and cannot be added: %s", absPath)), nil
-		} else if !os.IsNotExist(err) {
-			return ToolResponse{}, fmt.Errorf("failed to check file: %w", err)
-		}
-	}
-
-	// Load all required files
-	currentFiles := make(map[string]string)
-	for _, filePath := range filesToRead {
-		absPath := filePath
-		if !filepath.IsAbs(absPath) {
-			wd := config.WorkingDirectory()
-			absPath = filepath.Join(wd, absPath)
-		}
-
-		content, err := os.ReadFile(absPath)
-		if err != nil {
-			return ToolResponse{}, fmt.Errorf("failed to read file %s: %w", absPath, err)
-		}
-		currentFiles[filePath] = string(content)
-	}
-
-	// Process the patch
-	patch, fuzz, err := diff.TextToPatch(params.PatchText, currentFiles)
-	if err != nil {
-		return NewTextErrorResponse(fmt.Sprintf("failed to parse patch: %s", err)), nil
-	}
-
-	if fuzz > 3 {
-		return NewTextErrorResponse(fmt.Sprintf("patch contains fuzzy matches (fuzz level: %d). Please make your context lines more precise", fuzz)), nil
-	}
-
-	// Convert patch to commit
-	commit, err := diff.PatchToCommit(patch, currentFiles)
-	if err != nil {
-		return NewTextErrorResponse(fmt.Sprintf("failed to create commit from patch: %s", err)), nil
-	}
-
-	// Get session ID and message ID
-	sessionID, messageID := GetContextValues(ctx)
-	if sessionID == "" || messageID == "" {
-		return ToolResponse{}, fmt.Errorf("session ID and message ID are required for creating a patch")
-	}
-
-	// Request permission for all changes
-	for path, change := range commit.Changes {
-		switch change.Type {
-		case diff.ActionAdd:
-			dir := filepath.Dir(path)
-			patchDiff, _, _ := diff.GenerateDiff("", *change.NewContent, path)
-			p := p.permissions.Request(
-				permission.CreatePermissionRequest{
-					SessionID:   sessionID,
-					Path:        dir,
-					ToolName:    PatchToolName,
-					Action:      "create",
-					Description: fmt.Sprintf("Create file %s", path),
-					Params: EditPermissionsParams{
-						FilePath: path,
-						Diff:     patchDiff,
-					},
-				},
-			)
-			if !p {
-				return ToolResponse{}, permission.ErrorPermissionDenied
-			}
-		case diff.ActionUpdate:
-			currentContent := ""
-			if change.OldContent != nil {
-				currentContent = *change.OldContent
-			}
-			newContent := ""
-			if change.NewContent != nil {
-				newContent = *change.NewContent
-			}
-			patchDiff, _, _ := diff.GenerateDiff(currentContent, newContent, path)
-			dir := filepath.Dir(path)
-			p := p.permissions.Request(
-				permission.CreatePermissionRequest{
-					SessionID:   sessionID,
-					Path:        dir,
-					ToolName:    PatchToolName,
-					Action:      "update",
-					Description: fmt.Sprintf("Update file %s", path),
-					Params: EditPermissionsParams{
-						FilePath: path,
-						Diff:     patchDiff,
-					},
-				},
-			)
-			if !p {
-				return ToolResponse{}, permission.ErrorPermissionDenied
-			}
-		case diff.ActionDelete:
-			dir := filepath.Dir(path)
-			patchDiff, _, _ := diff.GenerateDiff(*change.OldContent, "", path)
-			p := p.permissions.Request(
-				permission.CreatePermissionRequest{
-					SessionID:   sessionID,
-					Path:        dir,
-					ToolName:    PatchToolName,
-					Action:      "delete",
-					Description: fmt.Sprintf("Delete file %s", path),
-					Params: EditPermissionsParams{
-						FilePath: path,
-						Diff:     patchDiff,
-					},
-				},
-			)
-			if !p {
-				return ToolResponse{}, permission.ErrorPermissionDenied
-			}
-		}
-	}
-
-	// Apply the changes to the filesystem
-	err = diff.ApplyCommit(commit, func(path string, content string) error {
-		absPath := path
-		if !filepath.IsAbs(absPath) {
-			wd := config.WorkingDirectory()
-			absPath = filepath.Join(wd, absPath)
-		}
-
-		// Create parent directories if needed
-		dir := filepath.Dir(absPath)
-		if err := os.MkdirAll(dir, 0o755); err != nil {
-			return fmt.Errorf("failed to create parent directories for %s: %w", absPath, err)
-		}
-
-		return os.WriteFile(absPath, []byte(content), 0o644)
-	}, func(path string) error {
-		absPath := path
-		if !filepath.IsAbs(absPath) {
-			wd := config.WorkingDirectory()
-			absPath = filepath.Join(wd, absPath)
-		}
-		return os.Remove(absPath)
-	})
-	if err != nil {
-		return NewTextErrorResponse(fmt.Sprintf("failed to apply patch: %s", err)), nil
-	}
-
-	// Update file history for all modified files
-	changedFiles := []string{}
-	totalAdditions := 0
-	totalRemovals := 0
-
-	for path, change := range commit.Changes {
-		absPath := path
-		if !filepath.IsAbs(absPath) {
-			wd := config.WorkingDirectory()
-			absPath = filepath.Join(wd, absPath)
-		}
-		changedFiles = append(changedFiles, absPath)
-
-		oldContent := ""
-		if change.OldContent != nil {
-			oldContent = *change.OldContent
-		}
-
-		newContent := ""
-		if change.NewContent != nil {
-			newContent = *change.NewContent
-		}
-
-		// Calculate diff statistics
-		_, additions, removals := diff.GenerateDiff(oldContent, newContent, path)
-		totalAdditions += additions
-		totalRemovals += removals
-
-		// Update history
-		file, err := p.files.GetByPathAndSession(ctx, absPath, sessionID)
-		if err != nil && change.Type != diff.ActionAdd {
-			// If not adding a file, create history entry for existing file
-			_, err = p.files.Create(ctx, sessionID, absPath, oldContent)
-			if err != nil {
-				logging.Debug("Error creating file history", "error", err)
-			}
-		}
-
-		if err == nil && change.Type != diff.ActionAdd && file.Content != oldContent {
-			// User manually changed content, store intermediate version
-			_, err = p.files.CreateVersion(ctx, sessionID, absPath, oldContent)
-			if err != nil {
-				logging.Debug("Error creating file history version", "error", err)
-			}
-		}
-
-		// Store new version
-		if change.Type == diff.ActionDelete {
-			_, err = p.files.CreateVersion(ctx, sessionID, absPath, "")
-		} else {
-			_, err = p.files.CreateVersion(ctx, sessionID, absPath, newContent)
-		}
-		if err != nil {
-			logging.Debug("Error creating file history version", "error", err)
-		}
-
-		// Record file operations
-		recordFileWrite(absPath)
-		recordFileRead(absPath)
-	}
-
-	// Run LSP diagnostics on all changed files
-	for _, filePath := range changedFiles {
-		waitForLspDiagnostics(ctx, filePath, p.lspClients)
-	}
-
-	result := fmt.Sprintf("Patch applied successfully. %d files changed, %d additions, %d removals",
-		len(changedFiles), totalAdditions, totalRemovals)
-
-	diagnosticsText := ""
-	for _, filePath := range changedFiles {
-		diagnosticsText += getDiagnostics(filePath, p.lspClients)
-	}
-
-	if diagnosticsText != "" {
-		result += "\n\nDiagnostics:\n" + diagnosticsText
-	}
-
-	return WithResponseMetadata(
-		NewTextResponse(result),
-		PatchResponseMetadata{
-			FilesChanged: changedFiles,
-			Additions:    totalAdditions,
-			Removals:     totalRemovals,
-		}), nil
-}