diff --git a/development/tests/test-keymaps.lua b/development/tests/test-keymaps.lua
index 1d3cb00..10a7766 100644
--- a/development/tests/test-keymaps.lua
+++ b/development/tests/test-keymaps.lua
@@ -850,6 +850,33 @@ vim.defer_fn(function()
     if not ok then error(err) end
   end)
 
+  -- ===== Global (non-buffer) entry-point diary maps =====
+  -- init.lua _setup_global_mappings ran during setup(). Regression guard for
+  -- the audit-found bug: <prefix><Leader>t must be today-in-a-tab and
+  -- <prefix><Leader>m must be tomorrow (matching the Vim global side +
+  -- upstream), not the old wiring that dropped `m` and bound `t` to tomorrow.
+  -- Query in a scratch (non-vimwiki) buffer so the buffer-local maps don't
+  -- shadow the globals.
+  tobj_case('global_maps.diary_tab_and_tomorrow_targets', function()
+    local buf = vim.api.nvim_create_buf(false, true)
+    vim.api.nvim_set_current_buf(buf)
+    local function gdesc(lhs)
+      local d = vim.fn.maparg(lhs, 'n', false, true)
+      if vim.tbl_isempty(d) then return nil end
+      return d.desc or ''
+    end
+    local ok, err = pcall(function()
+      local t = gdesc('<Leader>w<Leader>t')
+      local m = gdesc('<Leader>w<Leader>m')
+      if not t then error('<Leader>w<Leader>t global map missing') end
+      if not m then error('<Leader>w<Leader>m global map missing (tomorrow)') end
+      if not t:find('tab') then error('<Leader>w<Leader>t should be today-in-tab, desc=' .. t) end
+      if not m:find('tomorrow') then error('<Leader>w<Leader>m should be tomorrow, desc=' .. m) end
+    end)
+    vim.api.nvim_buf_delete(buf, { force = true })
+    if not ok then error(err) end
+  end)
+
   -- ===== Wiki picker (config-driven, no LSP) =====
   -- The picker must build its list from config so it works from any buffer
   -- before the server attaches.
diff --git a/development/vimwiki-gap.md b/development/vimwiki-gap.md
index 709489a..a6594f7 100644
--- a/development/vimwiki-gap.md
+++ b/development/vimwiki-gap.md
@@ -267,6 +267,16 @@ fix site.
 - [ ] `commentstring` (`'%%%s'`) — comment toggling/text-objects.
 - [ ] `color_tag_template` — `color_dic` present; template regex missing.
 - [ ] `rss_max_items` / `rss_name` — `:Rss` output hardcoded. _Fix:_ `HtmlConfig`.
+- [ ] **RSS feed structure fidelity** _(new, 2026-05-31 base_url audit)_ —
+  nuwiki's `write_rss` is intentionally minimal (title/link/guid). Upstream
+  emits more: channel `<link>` points at the diary index page
+  (`base_url + diary_rel_path + diary_index + .html`, nuwiki uses bare
+  `base_url`); per-item `<guid isPermaLink="false">` holds the bare date
+  basename (nuwiki uses the full URL, no attribute); plus `<atom:link rel=
+  "self">`, channel/item `<pubDate>` (from mtime), and a `<![CDATA[…]]>`
+  rendered-HTML body per item. `base_url`'s *scope* is faithful (RSS-only,
+  not inter-page links) and the `custom_wiki2html` arg contract is an exact
+  match — only the feed document shape diverges.
 - [ ] `emoji_enable` — emoji substitution.
 - [ ] `html_header_numbering` (+`_sym`) — numbered HTML headers.
 - [ ] `valid_html_tags` — allowed inline HTML tags in export.
@@ -289,6 +299,13 @@ fix site.
   `plugin/nuwiki.vim`'s global family now binds `<Leader>w<Leader>m` (tomorrow)
   and `<Leader>w<Leader>t` opens today in a new tab (was the same collision the
   buffer-local maps had). Covered by `map[n].<Leader>w<Leader>m` in both harnesses.
+- [x] **`<Leader>w<Leader>m` missing from the Neovim *global* map block**
+  _(new, 2026-05-31 map_prefix audit)_ — the same collision survived in
+  `lua/nuwiki/init.lua`'s `_setup_global_mappings`: `<prefix><Leader>t` was
+  bound to tomorrow and `<prefix><Leader>m` (tomorrow) was absent entirely.
+  Fixed so `<prefix><Leader>t` opens today in a new tab and `<prefix><Leader>m`
+  is tomorrow — now consistent with the Vim global side + upstream. Covered by
+  `global_maps.diary_tab_and_tomorrow_targets` (`test-keymaps.lua`).
 
 ---
 
diff --git a/lua/nuwiki/init.lua b/lua/nuwiki/init.lua
index a4aee2f..717f62e 100644
--- a/lua/nuwiki/init.lua
+++ b/lua/nuwiki/init.lua
@@ -57,7 +57,8 @@ local function _setup_global_mappings()
   kmap('n', p .. 'i',         function() _open(_diary_path(nil)) end,                o('diary index'))
   kmap('n', p .. '<Leader>w', function() _open(_diary_path(0)) end,                  o('today diary'))
   kmap('n', p .. '<Leader>y', function() _open(_diary_path(-1)) end,                 o('yesterday diary'))
-  kmap('n', p .. '<Leader>t', function() _open(_diary_path(1)) end,                  o('tomorrow diary'))
+  kmap('n', p .. '<Leader>t', function() _open(_diary_path(0), 'tabedit') end,       o('today diary (tab)'))
+  kmap('n', p .. '<Leader>m', function() _open(_diary_path(1)) end,                  o('tomorrow diary'))
   kmap('n', p .. '<Leader>i', function() require('nuwiki.commands').diary_generate_index() end, o('rebuild diary index'))
 end