Mike Schinkel

This plugin provides a shortcode that when inserted will display the body from a referenced “boilerplate.” A boilerplate is a special post type defined by this plugin. References can be made by title, path or ID. Below is a list of shortcode attributes used by the boilerplate shortcode. Examples are given for hypothetical “Copyright” and “Payment Terms.” All attributes are optional except one of “byid“, “bypath” or “bytitle” must be specified:
<ul>
<li>
bytitle: The full case-sensitive title of the boilerplate, i.e. “Copyright” or “Payment Terms“
</li>
<li>
bypath: The editable lowercase path for the boilerplate, i.e. “copyright” or “payment-terms” (vs. “/boilerplates/copyright/” or “/boilerplates/payment-terms/“)
</li>
<li>
byid: Refers to the internal ID from the wp_posts table for the boilerplate post, i.e. 234 or 1273
</li>
<li>
showtitle: “true” or “false” (defaults to “false“); if “true” boilerplate content will be prefixed with the title of the boilerplate as entered in the edit screen, or optionally with a “title” attribute you specify.
</li>
<li>
title: Use to override the displayed title of the boilerplate in specific cases. When “title” is specified “showtitle” is implicity set to “true.”
</li>
<li>
titletag: HTML element used to wrap the title when “showtitle” is explicity “true” or “title” is set (defaults to “h3.”)
</li>
<li>
id: The HTML “id” attribute applied to the div element that wraps the boilerplate and it’s optional title. If not specificed the div will not get have an “id” set.
</li>
<li>
class: The HTML “class” attribute applied to the div& element that wraps the boilerplate and it’s optional title (defailts to “boilerplate.”)
</li>
</ul>

WP Boilerplate Shortcode

Provides a shortcode that when inserted will display the body from a referenced "boilerplate" post type.

Leonardo José Nunes

The Interactive Boilerplate Creator allows you to quickly and easily create boilerplates 
that adhere to WordPress standards. By adding ‘Create Boilerplate’ block to a page, you can create 
a basic boilerplate simply providing the plugin name and the author’s email address, 
or go further and create a boilerplate that includes the Interactivity API 
in save.js or render.php formats.

Interaction Boilerplate Creator

Easily create boilerplates for developing interactive plugins in the WordPress standard.

WP Boilerplate Shortcode vs Interaction Boilerplate Creator