-tools mode not launching

I was looking to browse the stock particles to add a few effects to a map I’m working on, but after launching the game with the -tools -nop4 command from Hammer, none of the tools showed up at all. I figured this was a problem from launching via Hammer, and launched the game directly from Steam with the same command line prompts, with no results.
This is a very big issue, because it not only prevents community developers from browsing, editing, and creating new particles and commentary, but also prevents Crowbar Collective from doing the same - And with Xen and (presumably) some of the MP maps still under development, I figure that that’s kind of an important feature to have.

This wouldn’t be such an issue if PCF files were easily human-readable, or if there was an external tool for viewing their contents, but without the -tools flag doing anything ingame, there’s currently no way to even see what particles are available.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.