Method Execute

tools/builtin.go:70–106

(_ context.Context, execCtx ExecutionContext, input any)

}

func (t *ReadFileTool) Execute(_ context.Context, execCtx ExecutionContext, input any) (string, error) {
	in := deref[ReadFileInput](input)
	path := resolveToolPath(execCtx, in.FilePath)
	data, err := os.ReadFile(path)
	if err != nil {
		return fmt.Sprintf("Error reading file: %s", err), nil
	}
	content := decodeToolBytes(data)
	lineEndings := detectLineEndings(content)
	if lineEndings == "\r\n" {
		content = strings.ReplaceAll(content, "\r\n", "\n")
	}
	updateReadState(execCtx, path, content, lineEndings, in.Offset > 0 || in.Limit != nil)
	lines := strings.Split(content, "\n")
	start := in.Offset
	if start < 0 {
		start = 0
	}
	end := len(lines)
	if in.Limit != nil && *in.Limit != 0 {
		end = start + *in.Limit
		if end > len(lines) {
			end = len(lines)
		}
	}
	if start > len(lines) || end <= start {
		return "", nil
	}
	var out strings.Builder
	for i := start; i < end; i++ {
		if i > start {
			out.WriteString("\n")
		}
		out.WriteString(fmt.Sprintf("%d\t%s", i+1, lines[i]))
	}
	return out.String(), nil
}

type WriteFileInput struct {
	FilePath string `json:"file_path" jsonschema_description:"The absolute path to the file to write"`