To utilize Apex Code assist, set
true in MavensMate > Settings > User
MavensMate will attempt to provide Apex code assistance for system Apex Classes and other Apex in the org. To ensure the best code assist functionality, be sure to configure the following MavensMate for Sublime Text settings:
27.0 (or higher)
MavensMate will attempt to provide code assistance for Visualforce tags and attributes.