Local Action

Use when

User wants to make a change (add item etc) to the page. This change is usually contextual, such as adding an item similar to the ones displayed in the list. Action links have a distinct position on the page.

Example

“Add comment type” is the local link - Drupal 8 

“Add Link” is the local link — Drupal 7

Recommendations

• Precede add actions by a plus sign.
• Start the link text with a verb and keep it short.
• Preferably use only one task, avoid more than two.
• Consider a separate page if multiple local tasks are required.
• Do not use for settings.

API

Drupal 8

Problem it solves

Allows developer to add actions that affect content on the current page.