contract/agreement_legal/views/agreement_stages.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <!-- Agreement Stage List View-->
    <record model="ir.ui.view" id="partner_agreement_stage_list_view">
        <field name="name">Agreement Stage List</field>
        <field name="model">agreement.stage</field>
        <field name="arch" type="xml">
            <tree default_order='sequence, name'>
                <field name="sequence" widget="handle"/>
                <field name="name" string="Stage Name"/>
            </tree>
        </field>
    </record>

    <!-- Agreement Stage Form View -->
    <record model="ir.ui.view" id="partner_agreement_stage_form_view">
        <field name="name">Agreement Stage Form</field>
        <field name="model">agreement.stage</field>
        <field name="arch" type="xml">
            <form string="Agreements Stage Form">
                <sheet>
                    <div class="oe_title">
                        <label for="name" class="oe_edit_only" string="Stage Name"/>
                        <h1><field name="name" string="Stage Name"/></h1>
                    </div>
                    <group>
                        <field name="sequence"/>
                        <field name="fold"/>
                    </group>
                </sheet>
            </form>
        </field>
    </record>

    <!-- Actions opening views on models -->
    <record model="ir.actions.act_window" id="partner_agreement_action_stage">
        <field name="name">Agreement Stage</field>
        <field name="res_model">agreement.stage</field>
        <field name="view_mode">tree,form</field>
    </record>

</odoo>