Oleg Butuzov

Debug Bar Rewrite Rules adds information about Rewrite Rules (changed via filters) to a new panel in the Debug Bar. This plugin is an extension for <a href="https://wordpress.org/extend/plugins/debug-bar/" rel="ugc">Debug Bar</a>, but it is also can work in standalone mode (as admin tools page). Note: this plugin not able to track <code>add_rewrite_rule</code> function calls, for a reason this function is untraceable.
Once installed, you will have access to the following information:
<ul>
<li>Number of existing rewrite rules</li>
<li>List of rewrite rules</li>
<li>List of available filter hooks that can affect rewrite rules.</li>
<li>List of filters that affects rewrite rules.</li>
<li>Ability to search in rules with highlighting matches.</li>
<li>Ability to test url and see what rules can be applied to it.</li>
<li>Ability to flush rules directly from debug bar panel/tools page.</li>
</ul>

Debug Bar Rewrite Rules

This plugin makes it so easy to debug and even discover WP rewrite rules. Thanks a lot!!

Amazing plugin!

Debug Bar Rewrite Rules adds a new panel to Debug Bar that displays information about WordPress Rewrites Rules (if used).

Per Søderlind

While working on my <a href="https://wordpress.org/extend/plugins/read-offline/" rel="ugc">Read Offline</a> plugin, I wanted to implement permalinks. After intensive googling and reading the WordPress source I thought I’d share my findings.
This commented plugin demonstrates how to implement a custom permalink for your plugin. To test, add the <code>[mypermalink]</code> or <code>[mypermalink val="ipsum"]</code> shortcode to a page or post.
You can <a href="http://soderlind.no/archives/2012/11/01/wordpress-plugins-and-permalinks-how-to-use-pretty-links-in-your-plugin/" rel="nofollow ugc">view the plugin source</a> at soderlind.no

My Permalink Demo

Demo plugin to show how to add a custom permalink to your plugin

Debug Bar Rewrite Rules vs My Permalink Demo