Use Common Lisp indentation by default

It's not perfect, but I think it's still closer to what I like.

init.el

@@ -741,7 +741,7 @@
              org-dblock-write:db/org-workload-report
              endless/org-ispell
              db/org-agenda-list-deadlines
-             db/org-agenda-skip-tag
+             db/org-agenda-insert-active-filters
              hydra-org-agenda-view/body
              db/org-agenda-insert-efforts
              db/org-eval-subtree-no-confirm
@@ -1134,9 +1134,6 @@
               org-agenda-search-headline-for-time nil
               org-agenda-search-view-always-boolean t
 
-              ;; Show daily efforts directly in the agenda
-              org-agenda-finalize-hook '(db/org-agenda-insert-efforts)
-
               org-agenda-clock-consistency-checks
               '(:max-duration 9999999
                 :min-duration 0
@@ -1257,15 +1254,25 @@
                                (org-agenda-skip-deadline-prewarning-if-scheduled t)))))))
 
   :config (progn
-            ;; avoid important buffers to end up in `org-agenda-new-buffers’ by
+            ;; Avoid important buffers to end up in `org-agenda-new-buffers’ by
             ;; opening them manually
             (mapc #'find-file-noselect org-agenda-files)
 
-            (add-hook 'org-agenda-mode-hook #'hl-line-mode 'append)
-
+            ;; Check that all expected agenda files are being displayed.
             (advice-add 'org-agenda
                         :before #'db/check-special-org-files-in-agenda)
 
+            (add-hook 'org-agenda-mode-hook #'hl-line-mode 'append)
+
+            ;; Show daily efforts directly in the agenda
+            (add-hook 'org-agenda-finalize-hook #'db/org-agenda-insert-efforts)
+
+            ;; Prominently display active filters on top of agenda view; also
+            ;; update current agenda view when updating filters to make sure our
+            ;; display is always correct.
+            (add-hook 'org-agenda-finalize-hook #'db/org-agenda-insert-active-filters)
+            (add-hook 'org-agenda-filter-hook #'org-agenda-redo-all)
+
             (define-advice org-agenda-redo-all (:around (old-func &rest r) goto-top-and-execute)
               "Avoid recentering the Org agenda buffer after redo by moving
 point to the beginning of buffer first."
@@ -2791,7 +2798,7 @@ With given ARG, display files in `db/important-document-path’."
 ;; General Stuff first
 
 (use-package lisp-mode
-  :init (setq lisp-indent-function #'lisp-indent-function))
+  :init (setq lisp-indent-function #'common-lisp-indent-function))
 
 (use-package lispy
   :ensure t

site-lisp/db-org.el

@@ -112,23 +112,39 @@ deadlines."
       (setq buffer-read-only t)
       (message ""))))
 
-(defun db/org-agenda-skip-tag (tag &optional others)
-  ;; https://stackoverflow.com/questions/10074016/org-mode-filter-on-tag-in-agenda-view
-  "Skip all entries that correspond to TAG.
+(defun db/org-agenda-insert-active-filters (&optional match)
+  "Insert string showing the current agenda filters.
 
-If OTHERS is true, skip all entries that do not correspond to TAG."
-  (let* ((next-headline    (save-mark-and-excursion
-                             (or (outline-next-heading) (point-max))))
-         (current-headline (or (and (org-at-heading-p)
-                                    (point))
-                               (save-mark-and-excursion
-                                 ;; remember to also consider invisible headings
-                                 (org-back-to-heading t))))
-         (has-tag          (member tag (org-get-tags current-headline))))
-    (if (or (and others (not has-tag))
-            (and (not others) has-tag))
-        next-headline
-      nil)))
+The filter display is added after the structural header.
+
+If no agenda filters are active, nothing will be inserted.
+
+Add this function to `org-agenda-finalize-hook' to enable this."
+  ;; First delete any present active filter display, as it might be obsolete.
+  (save-excursion
+    (when-let ((pos (text-property-any
+                     (point) (point-max) 'db/active-filter-display t)))
+      (goto-char pos)
+      (kill-line)))
+
+  ;; Insert current active filters if there are any.
+  (when (org-agenda-filter-any)
+    (save-excursion
+      (when-let ((pos (text-property-any
+                       (point) (point-max) 'org-agenda-structural-header t)))
+        (goto-char pos)
+        (end-of-line)
+
+        ;; Current filter display shamelessly stolen from `org-agenda-filter'.
+        ;; Is there a function to do this?
+        (let* ((cf (mapconcat #'identity org-agenda-category-filter ""))
+	       (tf (mapconcat #'identity org-agenda-tag-filter ""))
+	       (ef (replace-regexp-in-string "^\\+" "" (or (car org-agenda-effort-filter) "")))
+	       (rf (replace-regexp-in-string "^\\+" "" (or (car org-agenda-regexp-filter) "")))
+	       (ff (concat cf tf ef (when (not (equal rf "")) (concat "/" rf "/")))))
+          (insert-and-inherit
+           (propertize (format " [%s]" ff)
+                       'db/active-filter-display t)))))))
 
 ;; A Hydra for changing agenda appearance
 ;; http://oremacs.com/2016/04/04/hydra-doc-syntax/