Which hooks are essential for post templates?

As a general rule of thumb it’s a good practice not to “create” hooks within your theme. Last year Tom McFarlin wrote against placing custom hooks in your theme; however, if you are building an addon plugin (such as WooThemes and their Features plugin) it would make a grey area exception to include those hooks. (only for display purposes.

If you are looking for general hooks in WordPress to leverage I would recommend checking out Underscores or at very minimum the 2012/2013 core themes since they would use all the core hooks.

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