Refine tool descriptions

Renamed `start_line` parameter to `position`

pkg/cli/conversation.go

@@ -22,7 +22,7 @@ func (m *Message) FriendlyRole() string {
 }
 
 func (c *Conversation) GenerateTitle() error {
-	const header = "Generate a short title for the conversation below."
+	const header = "Generate a consise 4-5 word title for the conversation below."
 	prompt := fmt.Sprintf("%s\n\n---\n\n%s", header, c.FormatForExternalPrompting())
 
 	messages := []Message{

pkg/cli/functions.go

@@ -35,11 +35,8 @@ type AvailableTool struct {
 	Impl func(arguments map[string]interface{}) (string, error)
 }
 
-var AvailableTools = map[string]AvailableTool{
-	"read_dir": {
-		Tool: openai.Tool{Type: "function", Function: openai.FunctionDefinition{
-			Name: "read_dir",
-			Description: `Return the contents of the CWD (current working directory).
+const (
+	READ_DIR_DESCRIPTION = `Return the contents of the CWD (current working directory).
 
 Results are returned as JSON in the following format:
 {
@@ -53,7 +50,46 @@ Results are returned as JSON in the following format:
 }
 
 For files, size represents the size (in bytes) of the file.
-For directories, size represents the number of entries in that directory.`,
+For directories, size represents the number of entries in that directory.`
+
+	READ_FILE_DESCRIPTION = `Read the contents of a text file relative to the current working directory.
+
+Each line of the file is prefixed with its line number and a tabs (\t) to make
+it make it easier to see which lines to change for other modifications.
+
+Example result:
+{
+	"message": "success", // if successful, or a different message indicating failure
+	"result": "1\tthe contents\n2\tof the file\n"
+}`
+
+	WRITE_FILE_DESCRIPTION = `Write the provided contents to a file relative to the current working directory.
+
+Note: only use this tool when you've been explicitly asked to create or write to a file.
+
+When using this function, you do not need to share the content you intend to write with the user first.
+
+Example result:
+{
+	"message": "success", // if successful, or a different message indicating failure
+}`
+
+	FILE_INSERT_LINES_DESCRIPTION = `Insert lines into a file, must specify path.
+
+Make sure your inserts match the flow and indentation of surrounding content.`
+
+	FILE_REPLACE_LINES_DESCRIPTION = `Replace or remove a range of lines within a file, must specify path.
+
+Useful for re-writing snippets/blocks of code or entire functions.
+
+Be cautious with your edits. When replacing, ensure the replacement content matches the flow and indentation of surrounding content.`
+)
+
+var AvailableTools = map[string]AvailableTool{
+	"read_dir": {
+		Tool: openai.Tool{Type: "function", Function: openai.FunctionDefinition{
+			Name:        "read_dir",
+			Description: READ_DIR_DESCRIPTION,
 			Parameters: FunctionParameters{
 				Type: "object",
 				Properties: map[string]FunctionParameter{
@@ -79,16 +115,7 @@ For directories, size represents the number of entries in that directory.`,
 	"read_file": {
 		Tool: openai.Tool{Type: "function", Function: openai.FunctionDefinition{
 			Name:        "read_file",
-			Description: `Read the contents of a text file relative to the current working directory.
-
-Each line of the file is prefixed with its line number and a tabs (\t) to make
-it make it easier to see which lines to change for other modifications.
-
-Example:
-{
-	"message": "success", // if successful, or a different message indicating failure
-	"result": "1\tthe contents\n2\tof the file\n"
-}`,
+			Description: READ_FILE_DESCRIPTION,
 			Parameters: FunctionParameters{
 				Type: "object",
 				Properties: map[string]FunctionParameter{
@@ -115,12 +142,7 @@ Example:
 	"write_file": {
 		Tool: openai.Tool{Type: "function", Function: openai.FunctionDefinition{
 			Name:        "write_file",
-			Description: `Write the provided contents to a file relative to the current working directory.
-
-Result is returned as JSON in the following format:
-{
-	"message": "success", // if successful, or a different message indicating failure
-}`,
+			Description: WRITE_FILE_DESCRIPTION,
 			Parameters: FunctionParameters{
 				Type: "object",
 				Properties: map[string]FunctionParameter{
@@ -156,28 +178,10 @@ Result is returned as JSON in the following format:
 			return WriteFile(path, content), nil
 		},
 	},
-	"modify_file": {
+	"file_insert_lines": {
 		Tool: openai.Tool{Type: "function", Function: openai.FunctionDefinition{
-			Name: "modify_file",
-			Description: `Perform complex line-based modifications to a file.
-
-Line ranges are inclusive. If 'start_line' is specified but 'end_line' is not,
-'end_line' gets set to the last line of the file.
-
-To replace or remove a single line, *set start_line and end_line to the same value*
-
-Examples:
-* Insert the lines "hello<new line>world" at line 10, preserving other content:
-    {"path": "myfile", "operation": "insert", "start_line": 10, "content": "hello\nworld"}
-
-* Remove lines 45 up to and including 54:
-    {"path": "myfile", "operation": "remove", "start_line": 45, "end_line": 54}
-
-* Replace content from line 10 to 25:
-    {"path": "myfile", "operation": "replace", "start_line": 10, "end_line": 25, "content": "i\nwas\nhere"}
-
-* Replace contents of entire the file:
-    {"path": "myfile", "operation": "replace", "start_line": 0, "content": "i\nwas\nhere"}`,
+			Name:        "file_insert_lines",
+			Description: FILE_INSERT_LINES_DESCRIPTION,
 			Parameters: FunctionParameters{
 				Type: "object",
 				Properties: map[string]FunctionParameter{
@@ -185,24 +189,16 @@ Examples:
 						Type:        "string",
 						Description: "Path of the file to be modified, relative to the current working directory.",
 					},
-					"operation": {
-						Type:        "string",
-						Description: `The the type of modification to make to the file. One of: insert, remove, replace`,
-					},
-					"start_line": {
+					"position": {
 						Type:        "integer",
-						Description: `(Optional) Where to start making a modification (insert, remove, and replace).`,
-					},
-					"end_line": {
-						Type:        "integer",
-						Description: `(Optional) Where to stop making a modification (remove or replace, end of file if omitted).`,
+						Description: `Which line to insert content *before*.`,
 					},
 					"content": {
 						Type:        "string",
-						Description: `(Optional) The content to insert, or replace with.`,
+						Description: `The content to insert.`,
 					},
 				},
-				Required: []string{"path", "operation"},
+				Required: []string{"path", "position", "content"},
 			},
 		}},
 		Impl: func(args map[string]interface{}) (string, error) {
@@ -214,13 +210,61 @@ Examples:
 			if !ok {
 				return "", fmt.Errorf("Invalid path in function arguments: %v", tmp)
 			}
-			tmp, ok = args["operation"]
+			var position int
+			tmp, ok = args["position"]
+			if ok {
+				tmp, ok := tmp.(float64)
 				if !ok {
-				return "", fmt.Errorf("operation parameter to modify_file was not included.")
+					return "", fmt.Errorf("Invalid position in function arguments: %v", tmp)
 				}
-			operation, ok := tmp.(string)
+				position = int(tmp)
+			}
+			var content string
+			tmp, ok = args["content"]
+			if ok {
+				content, ok = tmp.(string)
 				if !ok {
-				return "", fmt.Errorf("Invalid operation in function arguments: %v", tmp)
+					return "", fmt.Errorf("Invalid content in function arguments: %v", tmp)
+				}
+			}
+			return FileInsertLines(path, position, content), nil
+		},
+	},
+	"file_replace_lines": {
+		Tool: openai.Tool{Type: "function", Function: openai.FunctionDefinition{
+			Name:        "file_replace_lines",
+			Description: FILE_REPLACE_LINES_DESCRIPTION,
+			Parameters: FunctionParameters{
+				Type: "object",
+				Properties: map[string]FunctionParameter{
+					"path": {
+						Type:        "string",
+						Description: "Path of the file to be modified, relative to the current working directory.",
+					},
+					"start_line": {
+						Type:        "integer",
+						Description: `Line number which specifies the start of the replacement range (inclusive).`,
+					},
+					"end_line": {
+						Type:        "integer",
+						Description: `Line number which specifies the end of the replacement range (inclusive). If unset, range extends to end of file.`,
+					},
+					"content": {
+						Type:        "string",
+						Description: `Content to replace specified range. Omit to remove the specified range.`,
+					},
+				},
+				Required: []string{"path", "start_line"},
+			},
+		}},
+		Impl: func(args map[string]interface{}) (string, error) {
+			tmp, ok := args["path"]
+			if !ok {
+				return "", fmt.Errorf("path parameter to write_file was not included.")
+			}
+			path, ok := tmp.(string)
+			if !ok {
+				return "", fmt.Errorf("Invalid path in function arguments: %v", tmp)
 			}
 			var start_line int
 			tmp, ok = args["start_line"]
@@ -249,7 +293,7 @@ Examples:
 				}
 			}
 
-			return ModifyFile(path, operation, content, start_line, end_line), nil
+			return FileReplaceLines(path, start_line, end_line, content), nil
 		},
 	},
 }
@@ -450,7 +494,7 @@ func WriteFile(path string, content string) string {
 	return resultToJson(FunctionResult{})
 }
 
-func ModifyFile(path string, operation string, content string, startLine int, endLine int) string {
+func FileInsertLines(path string, position int, content string) string {
 	ok, res := isPathWithinCWD(path)
 	if !ok {
 		return resultToJson(*res)
@@ -469,42 +513,16 @@ func ModifyFile(path string, operation string, content string, startLine int, en
 		data = []byte{}
 	}
 
-	if startLine < 0 {
-		return resultToJson(FunctionResult{Message: "start_line cannot be less than 0"})
+	if position < 1 {
+		return resultToJson(FunctionResult{Message: "start_line cannot be less than 1"})
 	}
 
-	// Split the content by newline to process lines
 	lines := strings.Split(string(data), "\n")
 	contentLines := strings.Split(strings.Trim(content, "\n"), "\n")
 
-	switch operation {
-	case "insert":
-		// Insert new lines
-		before := lines[:startLine-1]
-		after := append(contentLines, lines[startLine-1:]...)
-		lines = append(before, after...)
-	case "remove":
-		// Remove lines
-		if endLine == 0 || endLine > len(lines) {
-			endLine = len(lines)
-		}
-
-		lines = append(lines[:startLine-1], lines[endLine:]...)
-	case "replace":
-		// Replace the lines between start_line and end_line
-		if endLine == 0 || endLine > len(lines) {
-			endLine = len(lines)
-		}
-		if startLine == 0 {
-			// model likely trying to replace contents, must start at line 1
-			startLine = 1
-		}
-		before := lines[:startLine-1]
-		after := lines[endLine:]
+	before := lines[:position-1]
+	after := lines[position-1:]
 	lines = append(before, append(contentLines, after...)...)
-	default:
-		return resultToJson(FunctionResult{Message: fmt.Sprintf("Invalid operation: %s", operation)})
-	}
 
 	newContent := strings.Join(lines, "\n")
 
@@ -516,3 +534,49 @@ func ModifyFile(path string, operation string, content string, startLine int, en
 
 	return resultToJson(FunctionResult{Result: newContent})
 }
+
+func FileReplaceLines(path string, startLine int, endLine int, content string) string {
+	ok, res := isPathWithinCWD(path)
+	if !ok {
+		return resultToJson(*res)
+	}
+
+	// Read the existing file's content
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if !os.IsNotExist(err) {
+			return resultToJson(FunctionResult{Message: fmt.Sprintf("Could not read path: %s", err.Error())})
+		}
+		_, err = os.Create(path)
+		if err != nil {
+			return resultToJson(FunctionResult{Message: fmt.Sprintf("Could not create new file: %s", err.Error())})
+		}
+		data = []byte{}
+	}
+
+	if startLine < 1 {
+		return resultToJson(FunctionResult{Message: "start_line cannot be less than 1"})
+	}
+
+	lines := strings.Split(string(data), "\n")
+	contentLines := strings.Split(strings.Trim(content, "\n"), "\n")
+
+	if endLine == 0 || endLine > len(lines) {
+		endLine = len(lines)
+	}
+
+	before := lines[:startLine-1]
+	after := lines[endLine:]
+
+	lines = append(before, append(contentLines, after...)...)
+	newContent := strings.Join(lines, "\n")
+
+	// Join the lines and write back to the file
+	err = os.WriteFile(path, []byte(newContent), 0644)
+	if err != nil {
+		return resultToJson(FunctionResult{Message: fmt.Sprintf("Could not write to path: %s", err.Error())})
+	}
+
+	return resultToJson(FunctionResult{Result: newContent})
+
+}