Is it possible to create an org-link to a custom agenda view?

Question

I'd like to add links to custom agenda commands within org files and other agenda views.

I think the answer would likely use org-add-link-type.

I also know that you can call a custom agenda view with the following code:

(org-agenda nil "p")

But I don't know how to combine the two, or if it is even possible.

Ideally, I would like be able to create a heading that launches a custom agenda. Something like the following:

* [[Code which I don't know][View current project tasks by assignment]]

Answer 1

You don't need to define a new link type: you can have elisp links that execute an arbitrary Lisp form - because the code is arbitrary, they can be dangerous so you get a question whether you are OK with following the link. See External Links in the manual. For example:

* [[elisp:(org-agenda nil "p")][View current project tasks by assignment]]

N.B. No space between the colon and the opening paren!

Answer 2

If you get tired of answering yes each time, defining a custom link is as simple as

  (require 'ol) ; provides org-link-set-parameters; see `org-man-open' etc. for more example usage
  (org-link-set-parameters "agenda" :follow #'my-org-agenda-link-open)
  (defun my-org-agenda-link-open (letter _)
    "Open the agenda defined on LETTER."
    (org-agenda nil letter))

and then you get a link from an org file to your agenda with:

[[agenda d][Open the d agenda]]