bases

apps/x/apps/renderer/src/App.tsx

@@ -12,6 +12,7 @@ import { ChatSidebar } from './components/chat-sidebar';
 import { ChatInputWithMentions, type StagedAttachment } from './components/chat-input-with-mentions';
 import { ChatMessageAttachments } from '@/components/chat-message-attachments'
 import { GraphView, type GraphEdge, type GraphNode } from '@/components/graph-view';
+import { BasesView, type BaseConfig, DEFAULT_BASE_CONFIG } from '@/components/bases-view';
 import { useDebounce } from './hooks/use-debounce';
 import { SidebarContentPanel } from '@/components/sidebar-content';
 import { SidebarSectionProvider } from '@/contexts/sidebar-context';
@@ -46,7 +47,7 @@ import {
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip"
 import { Toaster } from "@/components/ui/sonner"
 import { stripKnowledgePrefix, toKnowledgePath, wikiLabel } from '@/lib/wiki-links'
-import { splitFrontmatter, joinFrontmatter, extractTags } from '@/lib/frontmatter'
+import { splitFrontmatter, joinFrontmatter } from '@/lib/frontmatter'
 import { OnboardingModal } from '@/components/onboarding-modal'
 import { SearchDialog } from '@/components/search-dialog'
 import { BackgroundTaskDetail } from '@/components/background-task-detail'
@@ -106,6 +107,7 @@ const TITLEBAR_TOGGLE_MARGIN_LEFT_PX = 12
 const TITLEBAR_BUTTONS_COLLAPSED = 5
 const TITLEBAR_BUTTON_GAPS_COLLAPSED = 4
 const GRAPH_TAB_PATH = '__rowboat_graph_view__'
+const BASES_DEFAULT_TAB_PATH = '__rowboat_bases_default__'
 
 const clampNumber = (value: number, min: number, max: number) =>
   Math.min(max, Math.max(min, value))
@@ -233,6 +235,7 @@ const getAncestorDirectoryPaths = (path: string): string[] => {
 }
 
 const isGraphTabPath = (path: string) => path === GRAPH_TAB_PATH
+const isBaseFilePath = (path: string) => path.endsWith('.base') || path === BASES_DEFAULT_TAB_PATH
 
 const normalizeUsage = (usage?: Partial<LanguageModelUsage> | null): LanguageModelUsage | null => {
   if (!usage) return null
@@ -470,6 +473,7 @@ function App() {
   const [recentWikiFiles, setRecentWikiFiles] = useState<string[]>([])
   const [isGraphOpen, setIsGraphOpen] = useState(false)
   const [expandedFrom, setExpandedFrom] = useState<{ path: string | null; graph: boolean } | null>(null)
+  const [baseConfigByPath, setBaseConfigByPath] = useState<Record<string, BaseConfig>>({})
   const [graphData, setGraphData] = useState<{ nodes: GraphNode[]; edges: GraphEdge[] }>({
     nodes: [],
     edges: [],
@@ -510,9 +514,8 @@ function App() {
   const initialContentRef = useRef<string>('')
   const renameInProgressRef = useRef(false)
 
-  // Frontmatter state: store raw frontmatter per file path, tags for active file
+  // Frontmatter state: store raw frontmatter per file path
   const frontmatterByPathRef = useRef<Map<string, string | null>>(new Map())
-  const [activeFileTags, setActiveFileTags] = useState<string[]>([])
 
   // Version history state
   const [versionHistoryPath, setVersionHistoryPath] = useState<string | null>(null)
@@ -621,6 +624,8 @@ function App() {
 
   const getFileTabTitle = useCallback((tab: FileTab) => {
     if (isGraphTabPath(tab.path)) return 'Graph View'
+    if (tab.path === BASES_DEFAULT_TAB_PATH) return 'Bases'
+    if (tab.path.endsWith('.base')) return tab.path.split('/').pop()?.replace(/\.base$/i, '') || 'Base'
     return tab.path.split('/').pop()?.replace(/\.md$/i, '') || tab.path
   }, [])
 
@@ -818,20 +823,45 @@ function App() {
     }
   }, [runId, processingRunIds])
 
-  // Load directory tree
+  // Load directory tree (knowledge + bases)
   const loadDirectory = useCallback(async () => {
     try {
-      const result = await window.ipc.invoke('workspace:readdir', {
+      const [knowledgeResult, basesResult] = await Promise.all([
-        path: 'knowledge',
+        window.ipc.invoke('workspace:readdir', {
-        opts: { recursive: true, includeHidden: false }
+          path: 'knowledge',
-      })
+          opts: { recursive: true, includeHidden: false, includeStats: true }
-      return buildTree(result)
+        }),
+        window.ipc.invoke('workspace:readdir', {
+          path: 'bases',
+          opts: { recursive: false, includeHidden: false, includeStats: true }
+        }).catch(() => [] as DirEntry[]),
+      ])
+      const knowledgeTree = buildTree(knowledgeResult)
+      const basesChildren: TreeNode[] = (basesResult as DirEntry[])
+        .filter((e) => e.name.endsWith('.base'))
+        .map((e) => ({ ...e, kind: 'file' as const }))
+      if (basesChildren.length > 0) {
+        const basesFolder: TreeNode = {
+          name: 'Bases',
+          path: 'bases',
+          kind: 'dir',
+          children: basesChildren,
+        }
+        return [...knowledgeTree, basesFolder]
+      }
+      return knowledgeTree
     } catch (err) {
       console.error('Failed to load directory:', err)
       return []
     }
   }, [])
 
+  // Ensure bases/ directory exists on startup
+  useEffect(() => {
+    window.ipc.invoke('workspace:mkdir', { path: 'bases', recursive: true })
+      .catch((err: unknown) => console.error('Failed to ensure bases directory:', err))
+  }, [])
+
   // Load initial tree
   useEffect(() => {
     loadDirectory().then(setTree)
@@ -905,7 +935,6 @@ function App() {
           editorPathRef.current = pathToReload
           initialContentByPathRef.current.set(pathToReload, body)
           initialContentRef.current = body
-          setActiveFileTags(extractTags(fm))
         }
       }
     })
@@ -923,6 +952,31 @@ function App() {
       setLastSaved(null)
       return
     }
+    if (selectedPath === BASES_DEFAULT_TAB_PATH) {
+      // Virtual default base — no file to load, use DEFAULT_BASE_CONFIG
+      if (!baseConfigByPath[selectedPath]) {
+        setBaseConfigByPath((prev) => ({ ...prev, [selectedPath]: { ...DEFAULT_BASE_CONFIG } }))
+      }
+      return
+    }
+    if (selectedPath.endsWith('.base')) {
+      // Load base config from file only if not already cached
+      if (!baseConfigByPath[selectedPath]) {
+        window.ipc.invoke('workspace:readFile', { path: selectedPath, encoding: 'utf8' })
+          .then((result: { data: string }) => {
+            try {
+              const parsed = JSON.parse(result.data) as BaseConfig
+              setBaseConfigByPath((prev) => ({ ...prev, [selectedPath]: parsed }))
+            } catch {
+              setBaseConfigByPath((prev) => ({ ...prev, [selectedPath]: { ...DEFAULT_BASE_CONFIG } }))
+            }
+          })
+          .catch(() => {
+            setBaseConfigByPath((prev) => ({ ...prev, [selectedPath]: { ...DEFAULT_BASE_CONFIG } }))
+          })
+      }
+      return
+    }
     if (selectedPath.endsWith('.md')) {
       const cachedContent = editorContentByPathRef.current.get(selectedPath)
       const hasBaseline = initialContentByPathRef.current.has(selectedPath)
@@ -934,7 +988,6 @@ function App() {
         editorContentRef.current = cachedContent
         editorPathRef.current = selectedPath
         initialContentRef.current = initialContentByPathRef.current.get(selectedPath) ?? cachedContent
-        setActiveFileTags(extractTags(frontmatterByPathRef.current.get(selectedPath) ?? null))
         return
       }
     }
@@ -943,42 +996,43 @@ function App() {
     let cancelled = false
     ;(async () => {
       try {
-        const stat = await window.ipc.invoke('workspace:stat', { path: pathToLoad })
+        // For .md files (from the knowledge tree), skip stat and read directly.
-        if (cancelled || fileLoadRequestIdRef.current !== requestId || selectedPathRef.current !== pathToLoad) return
+        // For other file types, stat first to check if it's a file vs directory.
-        if (stat.kind === 'file') {
+        const isKnownFile = pathToLoad.endsWith('.md')
-          const result = await window.ipc.invoke('workspace:readFile', { path: pathToLoad })
+        if (!isKnownFile) {
+          const stat = await window.ipc.invoke('workspace:stat', { path: pathToLoad })
           if (cancelled || fileLoadRequestIdRef.current !== requestId || selectedPathRef.current !== pathToLoad) return
-          setFileContent(result.data)
+          if (stat.kind !== 'file') {
-          const { raw: fm, body } = splitFrontmatter(result.data)
+            setFileContent('')
-          frontmatterByPathRef.current.set(pathToLoad, fm)
+            setEditorContent('')
-          const normalizeForCompare = (s: string) => s.split('\n').map(line => line.trimEnd()).join('\n').trim()
+            editorContentRef.current = ''
-          const isSameEditorFile = editorPathRef.current === pathToLoad
+            initialContentRef.current = ''
-          const knownBaseline = initialContentByPathRef.current.get(pathToLoad)
+            return
-          const hasKnownBaseline = knownBaseline !== undefined
-          const hasUnsavedEdits =
-            hasKnownBaseline
-            && normalizeForCompare(editorContentRef.current) !== normalizeForCompare(knownBaseline)
-          const shouldPreserveActiveDraft = isSameEditorFile && hasUnsavedEdits
-          if (!shouldPreserveActiveDraft) {
-            setEditorContent(body)
-            if (pathToLoad.endsWith('.md')) {
-              setEditorCacheForPath(pathToLoad, body)
-            }
-            editorContentRef.current = body
-            editorPathRef.current = pathToLoad
-            initialContentByPathRef.current.set(pathToLoad, body)
-            initialContentRef.current = body
-            setLastSaved(null)
-            setActiveFileTags(extractTags(fm))
-          } else {
-            // Still update the editor's path so subsequent autosaves write to the correct file.
-            editorPathRef.current = pathToLoad
           }
+        }
+        const result = await window.ipc.invoke('workspace:readFile', { path: pathToLoad })
+        if (cancelled || fileLoadRequestIdRef.current !== requestId || selectedPathRef.current !== pathToLoad) return
+        setFileContent(result.data)
+        const { raw: fm, body } = splitFrontmatter(result.data)
+        frontmatterByPathRef.current.set(pathToLoad, fm)
+        const normalizeForCompare = (s: string) => s.split('\n').map(line => line.trimEnd()).join('\n').trim()
+        const isSameEditorFile = editorPathRef.current === pathToLoad
+        const wouldClobberActiveEdits =
+          isSameEditorFile
+          && normalizeForCompare(editorContentRef.current) !== normalizeForCompare(body)
+        if (!wouldClobberActiveEdits) {
+          setEditorContent(body)
+          if (pathToLoad.endsWith('.md')) {
+            setEditorCacheForPath(pathToLoad, body)
+          }
+          editorContentRef.current = body
+          editorPathRef.current = pathToLoad
+          initialContentByPathRef.current.set(pathToLoad, body)
+          initialContentRef.current = body
+          setLastSaved(null)
         } else {
-          setFileContent('')
+          // Still update the editor's path so subsequent autosaves write to the correct file.
-          setEditorContent('')
+          editorPathRef.current = pathToLoad
-          editorContentRef.current = ''
-          initialContentRef.current = ''
         }
       } catch (err) {
         console.error('Failed to load file:', err)
@@ -2177,7 +2231,7 @@ function App() {
 
   const closeFileTab = useCallback((tabId: string) => {
     const closingTab = fileTabs.find(t => t.id === tabId)
-    if (closingTab && !isGraphTabPath(closingTab.path)) {
+    if (closingTab && !isGraphTabPath(closingTab.path) && !isBaseFilePath(closingTab.path)) {
       removeEditorCacheForPath(closingTab.path)
       initialContentByPathRef.current.delete(closingTab.path)
       untitledRenameReadyPathsRef.current.delete(closingTab.path)
@@ -2186,13 +2240,20 @@ function App() {
         editorPathRef.current = null
       }
     }
+    if (closingTab && isBaseFilePath(closingTab.path)) {
+      setBaseConfigByPath((prev) => {
+        const next = { ...prev }
+        delete next[closingTab.path]
+        return next
+      })
+    }
     setFileTabs(prev => {
       if (prev.length <= 1) {
         // Last file tab - close it and go back to chat
         setActiveFileTabId(null)
         setSelectedPath(null)
         setIsGraphOpen(false)
-        return []
+          return []
       }
       const idx = prev.findIndex(t => t.id === tabId)
       if (idx === -1) return prev
@@ -2206,7 +2267,7 @@ function App() {
           setIsGraphOpen(true)
         } else {
           setIsGraphOpen(false)
-          setSelectedPath(newActiveTab.path)
+              setSelectedPath(newActiveTab.path)
         }
       }
       return next
@@ -2314,7 +2375,7 @@ function App() {
 
     if (activeFileTabId) {
       const activeTab = fileTabs.find((tab) => tab.id === activeFileTabId)
-      if (activeTab && !isGraphTabPath(activeTab.path)) {
+      if (activeTab && !isGraphTabPath(activeTab.path) && !isBaseFilePath(activeTab.path)) {
         setFileTabs((prev) => prev.map((tab) => (
           tab.id === activeFileTabId ? { ...tab, path } : tab
         )))
@@ -2459,6 +2520,46 @@ function App() {
     void navigateToView({ type: 'file', path })
   }, [navigateToView])
 
+  const handleBaseConfigChange = useCallback((path: string, config: BaseConfig) => {
+    setBaseConfigByPath((prev) => ({ ...prev, [path]: config }))
+  }, [])
+
+  const handleBaseSave = useCallback(async (name: string | null) => {
+    if (!selectedPath) return
+    const isDefault = selectedPath === BASES_DEFAULT_TAB_PATH
+    const config = baseConfigByPath[selectedPath] ?? DEFAULT_BASE_CONFIG
+
+    if (isDefault && name) {
+      // Save as new base file
+      const safeName = name.replace(/[\\/]/g, '-').trim()
+      const newPath = `bases/${safeName}.base`
+      const fileConfig = { ...config, name: safeName }
+      try {
+        await window.ipc.invoke('workspace:writeFile', {
+          path: newPath,
+          data: JSON.stringify(fileConfig, null, 2),
+        })
+        setBaseConfigByPath((prev) => ({ ...prev, [newPath]: fileConfig }))
+        // Refresh tree then navigate to the new file
+        const newTree = await loadDirectory()
+        setTree(newTree)
+        void navigateToView({ type: 'file', path: newPath })
+      } catch (err) {
+        console.error('Failed to save base:', err)
+      }
+    } else if (!isDefault) {
+      // Save in place
+      try {
+        await window.ipc.invoke('workspace:writeFile', {
+          path: selectedPath,
+          data: JSON.stringify(config, null, 2),
+        })
+      } catch (err) {
+        console.error('Failed to save base:', err)
+      }
+    }
+  }, [selectedPath, baseConfigByPath, loadDirectory, navigateToView])
+
   const navigateToFullScreenChat = useCallback(() => {
     // Only treat this as navigation when coming from another view
     if (currentViewState.type !== 'chat') {
@@ -2771,6 +2872,13 @@ function App() {
       }
       void navigateToView({ type: 'graph' })
     },
+    openBases: () => {
+      if (!selectedPath && !isGraphOpen && !selectedBackgroundTask) {
+        setIsChatSidebarOpen(false)
+        setIsRightPaneMaximized(false)
+      }
+      void navigateToView({ type: 'file', path: BASES_DEFAULT_TAB_PATH })
+    },
     expandAll: () => setExpandedPaths(new Set(collectDirPaths(tree))),
     collapseAll: () => setExpandedPaths(new Set()),
     rename: async (oldPath: string, newName: string, isDir: boolean) => {
@@ -3270,7 +3378,7 @@ function App() {
                     getTabId={(t) => t.id}
                     onSwitchTab={switchFileTab}
                     onCloseTab={closeFileTab}
-                    allowSingleTabClose={fileTabs.length === 1 && isGraphOpen}
+                    allowSingleTabClose={fileTabs.length === 1 && (isGraphOpen || (selectedPath != null && isBaseFilePath(selectedPath)))}
                   />
                 ) : (
                   <TabBar
@@ -3283,7 +3391,7 @@ function App() {
                     onCloseTab={closeChatTab}
                   />
                 )}
-                {selectedPath && (
+                {selectedPath && selectedPath.endsWith('.md') && (
                   <div className="flex items-center gap-1 text-xs text-muted-foreground self-center shrink-0 pl-2">
                     {isSaving ? (
                       <>
@@ -3372,7 +3480,18 @@ function App() {
                 )}
               </ContentHeader>
 
-              {isGraphOpen ? (
+              {selectedPath && isBaseFilePath(selectedPath) ? (
+                <div className="flex-1 min-h-0 flex flex-col overflow-hidden">
+                  <BasesView
+                    tree={tree}
+                    onSelectNote={(path) => navigateToFile(path)}
+                    config={baseConfigByPath[selectedPath] ?? DEFAULT_BASE_CONFIG}
+                    onConfigChange={(cfg) => handleBaseConfigChange(selectedPath, cfg)}
+                    isDefaultBase={selectedPath === BASES_DEFAULT_TAB_PATH}
+                    onSave={(name) => void handleBaseSave(name)}
+                  />
+                </div>
+              ) : isGraphOpen ? (
                 <div className="flex-1 min-h-0">
                   <GraphView
                     nodes={graphData.nodes}
@@ -3418,7 +3537,20 @@ function App() {
                               wikiLinks={wikiLinkConfig}
                               onImageUpload={handleImageUpload}
                               editorSessionKey={editorSessionByTabId[tab.id] ?? 0}
-                              tags={isActive ? activeFileTags : undefined}
+                              frontmatter={frontmatterByPathRef.current.get(tab.path) ?? null}
+                              onFrontmatterChange={(newRaw) => {
+                                frontmatterByPathRef.current.set(tab.path, newRaw)
+                                // Write updated frontmatter to disk immediately
+                                const currentBody = editorContentRef.current
+                                const fullContent = joinFrontmatter(newRaw, currentBody)
+                                initialContentByPathRef.current.set(tab.path, splitFrontmatter(fullContent).body)
+                                initialContentRef.current = splitFrontmatter(fullContent).body
+                                void window.ipc.invoke('workspace:writeFile', {
+                                  path: tab.path,
+                                  data: fullContent,
+                                  opts: { encoding: 'utf8' },
+                                })
+                              }}
                               onHistoryHandlersChange={(handlers) => {
                                 if (handlers) {
                                   fileHistoryHandlersRef.current.set(tab.id, handlers)

apps/x/apps/renderer/src/components/frontmatter-properties.tsx

@@ -0,0 +1,252 @@
+import { useState, useCallback, useRef, useEffect } from 'react'
+import { ChevronRight, X, Plus } from 'lucide-react'
+import { extractAllFrontmatterValues, buildFrontmatter } from '@/lib/frontmatter'
+
+interface FrontmatterPropertiesProps {
+  raw: string | null
+  onRawChange: (raw: string | null) => void
+  editable?: boolean
+}
+
+type FieldEntry = { key: string; value: string | string[] }
+
+function fieldsFromRaw(raw: string | null): FieldEntry[] {
+  const record = extractAllFrontmatterValues(raw)
+  return Object.entries(record).map(([key, value]) => ({ key, value }))
+}
+
+function fieldsToRaw(fields: FieldEntry[]): string | null {
+  const record: Record<string, string | string[]> = {}
+  for (const { key, value } of fields) {
+    if (key.trim()) record[key.trim()] = value
+  }
+  return buildFrontmatter(record)
+}
+
+export function FrontmatterProperties({ raw, onRawChange, editable = true }: FrontmatterPropertiesProps) {
+  const [expanded, setExpanded] = useState(false)
+  const [fields, setFields] = useState<FieldEntry[]>(() => fieldsFromRaw(raw))
+  const [editingNewKey, setEditingNewKey] = useState(false)
+  const newKeyRef = useRef<HTMLInputElement>(null)
+  const lastCommittedRaw = useRef(raw)
+
+  // Sync local fields when raw changes externally (e.g. tab switch)
+  useEffect(() => {
+    if (raw !== lastCommittedRaw.current) {
+      setFields(fieldsFromRaw(raw))
+      lastCommittedRaw.current = raw
+    }
+  }, [raw])
+
+  useEffect(() => {
+    if (editingNewKey && newKeyRef.current) {
+      newKeyRef.current.focus()
+    }
+  }, [editingNewKey])
+
+  const commit = useCallback((updated: FieldEntry[]) => {
+    const newRaw = fieldsToRaw(updated)
+    lastCommittedRaw.current = newRaw
+    onRawChange(newRaw)
+  }, [onRawChange])
+
+  // For scalar fields: update local state immediately, commit on blur
+  const updateLocalValue = useCallback((index: number, newValue: string) => {
+    setFields(prev => {
+      const next = [...prev]
+      next[index] = { ...next[index], value: newValue }
+      return next
+    })
+  }, [])
+
+  const commitField = useCallback((index: number) => {
+    setFields(prev => {
+      commit(prev)
+      return prev
+    })
+  }, [commit])
+
+  // For array fields and structural changes: update + commit immediately
+  const updateAndCommit = useCallback((updater: (prev: FieldEntry[]) => FieldEntry[]) => {
+    setFields(prev => {
+      const next = updater(prev)
+      commit(next)
+      return next
+    })
+  }, [commit])
+
+  const removeField = useCallback((index: number) => {
+    updateAndCommit(prev => prev.filter((_, i) => i !== index))
+  }, [updateAndCommit])
+
+  const addField = useCallback((key: string) => {
+    const trimmed = key.trim()
+    if (!trimmed) return
+    if (fields.some(f => f.key === trimmed)) return
+    updateAndCommit(prev => [...prev, { key: trimmed, value: '' }])
+    setEditingNewKey(false)
+  }, [fields, updateAndCommit])
+
+  const count = fields.length
+
+  return (
+    <div className="frontmatter-properties">
+      <button
+        className="frontmatter-toggle"
+        onClick={() => setExpanded(!expanded)}
+        type="button"
+      >
+        <ChevronRight
+          size={14}
+          className={`frontmatter-chevron ${expanded ? 'expanded' : ''}`}
+        />
+        <span className="frontmatter-label">
+          Properties{count > 0 ? ` (${count})` : ''}
+        </span>
+      </button>
+
+      {expanded && (
+        <div className="frontmatter-fields">
+          {fields.map((field, index) => (
+            <div key={`${field.key}-${index}`} className="frontmatter-row">
+              <span className="frontmatter-key" title={field.key}>
+                {field.key}
+              </span>
+              <div className="frontmatter-value-area">
+                {Array.isArray(field.value) ? (
+                  <ArrayField
+                    value={field.value}
+                    editable={editable}
+                    onChange={(v) => updateAndCommit(prev => {
+                      const next = [...prev]
+                      next[index] = { ...next[index], value: v }
+                      return next
+                    })}
+                  />
+                ) : (
+                  <input
+                    className="frontmatter-input"
+                    value={field.value}
+                    readOnly={!editable}
+                    onChange={(e) => updateLocalValue(index, e.target.value)}
+                    onBlur={() => commitField(index)}
+                    onKeyDown={(e) => {
+                      if (e.key === 'Enter') {
+                        e.currentTarget.blur()
+                      }
+                    }}
+                  />
+                )}
+              </div>
+              {editable && (
+                <button
+                  className="frontmatter-remove"
+                  onClick={() => removeField(index)}
+                  type="button"
+                  title="Remove property"
+                >
+                  <X size={12} />
+                </button>
+              )}
+            </div>
+          ))}
+
+          {editable && (
+            editingNewKey ? (
+              <div className="frontmatter-row frontmatter-new-row">
+                <input
+                  ref={newKeyRef}
+                  className="frontmatter-input frontmatter-new-key-input"
+                  placeholder="Property name"
+                  onKeyDown={(e) => {
+                    if (e.key === 'Enter') {
+                      addField(e.currentTarget.value)
+                    } else if (e.key === 'Escape') {
+                      setEditingNewKey(false)
+                    }
+                  }}
+                  onBlur={(e) => {
+                    if (e.currentTarget.value.trim()) {
+                      addField(e.currentTarget.value)
+                    } else {
+                      setEditingNewKey(false)
+                    }
+                  }}
+                />
+              </div>
+            ) : (
+              <button
+                className="frontmatter-add"
+                onClick={() => setEditingNewKey(true)}
+                type="button"
+              >
+                <Plus size={12} />
+                <span>Add property</span>
+              </button>
+            )
+          )}
+        </div>
+      )}
+    </div>
+  )
+}
+
+function ArrayField({
+  value,
+  editable,
+  onChange,
+}: {
+  value: string[]
+  editable: boolean
+  onChange: (v: string[]) => void
+}) {
+  const removeItem = (index: number) => {
+    onChange(value.filter((_, i) => i !== index))
+  }
+
+  const addItem = (text: string) => {
+    const trimmed = text.trim()
+    if (!trimmed) return
+    onChange([...value, trimmed])
+  }
+
+  return (
+    <div className="frontmatter-array">
+      {value.map((item, i) => (
+        <span key={i} className="frontmatter-chip">
+          <span className="frontmatter-chip-text">{item}</span>
+          {editable && (
+            <button
+              className="frontmatter-chip-remove"
+              onClick={() => removeItem(i)}
+              type="button"
+            >
+              <X size={10} />
+            </button>
+          )}
+        </span>
+      ))}
+      {editable && (
+        <input
+          className="frontmatter-chip-input"
+          placeholder="Add..."
+          onKeyDown={(e) => {
+            if (e.key === 'Enter' || e.key === ',') {
+              e.preventDefault()
+              addItem(e.currentTarget.value)
+              e.currentTarget.value = ''
+            } else if (e.key === 'Backspace' && !e.currentTarget.value && value.length > 0) {
+              removeItem(value.length - 1)
+            }
+          }}
+          onBlur={(e) => {
+            if (e.currentTarget.value.trim()) {
+              addItem(e.currentTarget.value)
+              e.currentTarget.value = ''
+            }
+          }}
+        />
+      )}
+    </div>
+  )
+}

apps/x/apps/renderer/src/components/markdown-editor.tsx

@@ -176,7 +176,7 @@ function getMarkdownWithBlankLines(editor: Editor): string {
   return result
 }
 import { EditorToolbar } from './editor-toolbar'
-import { TagPills } from './tag-pills'
+import { FrontmatterProperties } from './frontmatter-properties'
 import { WikiLink } from '@/extensions/wiki-link'
 import { Popover, PopoverAnchor, PopoverContent } from '@/components/ui/popover'
 import { Command, CommandEmpty, CommandItem, CommandList } from '@/components/ui/command'
@@ -201,7 +201,8 @@ interface MarkdownEditorProps {
   editorSessionKey?: number
   onHistoryHandlersChange?: (handlers: { undo: () => boolean; redo: () => boolean } | null) => void
   editable?: boolean
-  tags?: string[]
+  frontmatter?: string | null
+  onFrontmatterChange?: (raw: string | null) => void
 }
 
 type WikiLinkMatch = {
@@ -290,7 +291,8 @@ export function MarkdownEditor({
   editorSessionKey = 0,
   onHistoryHandlersChange,
   editable = true,
-  tags,
+  frontmatter,
+  onFrontmatterChange,
 }: MarkdownEditorProps) {
   const isInternalUpdate = useRef(false)
   const wrapperRef = useRef<HTMLDivElement>(null)
@@ -724,7 +726,13 @@ export function MarkdownEditor({
         onSelectionHighlight={setSelectionHighlight}
         onImageUpload={handleImageUploadWithPlaceholder}
       />
-      {tags && <TagPills tags={tags} />}
+      {(frontmatter !== undefined) && onFrontmatterChange && (
+        <FrontmatterProperties
+          raw={frontmatter}
+          onRawChange={onFrontmatterChange}
+          editable={editable}
+        />
+      )}
       <div className="editor-content-wrapper" ref={wrapperRef} onScroll={handleScroll}>
         <EditorContent editor={editor} />
         {wikiLinks ? (

apps/x/apps/renderer/src/components/sidebar-content.tsx

@@ -16,6 +16,7 @@ import {
   Mic,
   Network,
   Pencil,
+  Table2,
   Plug,
   LoaderIcon,
   Settings,
@@ -101,6 +102,7 @@ type KnowledgeActions = {
   createNote: (parentPath?: string) => void
   createFolder: (parentPath?: string) => void
   openGraph: () => void
+  openBases: () => void
   expandAll: () => void
   collapseAll: () => void
   rename: (path: string, newName: string, isDir: boolean) => Promise<void>
@@ -855,6 +857,7 @@ function KnowledgeSection({
     { icon: FilePlus, label: "New Note", action: () => actions.createNote() },
     { icon: FolderPlus, label: "New Folder", action: () => actions.createFolder() },
     { icon: Network, label: "Graph View", action: () => actions.openGraph() },
+    { icon: Table2, label: "Bases", action: () => actions.openBases() },
   ]
 
   return (

apps/x/apps/renderer/src/components/tag-pills.tsx

@@ -1,17 +0,0 @@
-interface TagPillsProps {
-  tags: string[]
-}
-
-export function TagPills({ tags }: TagPillsProps) {
-  if (tags.length === 0) return null
-
-  return (
-    <div className="tag-pills-row">
-      {tags.map((tag, i) => (
-        <span key={`${tag}-${i}`} className="tag-pill">
-          {tag}
-        </span>
-      ))}
-    </div>
-  )
-}

apps/x/apps/renderer/src/lib/frontmatter.ts

@@ -29,6 +29,209 @@ export function joinFrontmatter(raw: string | null, body: string): string {
   return raw + '\n' + body
 }
 
+/** Structured frontmatter fields extracted from categorized YAML. */
+export type FrontmatterFields = {
+  relationship: string | null
+  relationship_sub: string[]
+  topic: string[]
+  email_type: string[]
+  action: string[]
+  status: string | null
+  source: string[]
+}
+
+/**
+ * Extract structured tag categories from raw frontmatter YAML.
+ *
+ * Handles both the new categorized format (top-level keys) and the legacy
+ * flat `tags:` list. For legacy notes the flat tags are mapped into
+ * categories using known tag values.
+ */
+export function extractFrontmatterFields(raw: string | null): FrontmatterFields {
+  const fields: FrontmatterFields = {
+    relationship: null,
+    relationship_sub: [],
+    topic: [],
+    email_type: [],
+    action: [],
+    status: null,
+    source: [],
+  }
+  if (!raw) return fields
+
+  const lines = raw.split('\n')
+  let currentKey: string | null = null
+
+  for (const line of lines) {
+    // Top-level key detection
+    const topMatch = line.match(/^(\w+):\s*(.*)$/)
+    if (topMatch || line === '---') {
+      currentKey = null
+    }
+
+    if (topMatch) {
+      const key = topMatch[1]
+      const value = topMatch[2].trim()
+
+      if (key in fields) {
+        currentKey = key
+        if (value) {
+          const field = fields[key as keyof FrontmatterFields]
+          if (Array.isArray(field)) {
+            (field as string[]).push(value)
+          } else {
+            // single-value field
+            ;(fields as Record<string, unknown>)[key] = value
+          }
+          currentKey = null // inline value, no list follows
+        }
+        continue
+      }
+
+      // Legacy flat tags: — parse and distribute into categories
+      if (key === 'tags') {
+        currentKey = '__legacy_tags'
+        continue
+      }
+    }
+
+    // List items under a categorized key
+    if (currentKey && currentKey !== '__legacy_tags') {
+      const itemMatch = line.match(/^\s+-\s+(.+)$/)
+      if (itemMatch) {
+        const value = itemMatch[1].trim()
+        const field = fields[currentKey as keyof FrontmatterFields]
+        if (Array.isArray(field)) {
+          (field as string[]).push(value)
+        } else {
+          ;(fields as Record<string, unknown>)[currentKey] = value
+        }
+      }
+      continue
+    }
+
+    // Legacy flat tag items → map into categories
+    if (currentKey === '__legacy_tags') {
+      const itemMatch = line.match(/^\s+-\s+(.+)$/)
+      if (itemMatch) {
+        const tag = itemMatch[1].trim()
+        const cat = LEGACY_TAG_TO_CATEGORY[tag]
+        if (cat) {
+          const field = fields[cat as keyof FrontmatterFields]
+          if (Array.isArray(field)) {
+            (field as string[]).push(tag)
+          } else if (!(fields as Record<string, unknown>)[cat]) {
+            ;(fields as Record<string, unknown>)[cat] = tag
+          }
+        }
+      }
+      continue
+    }
+  }
+
+  return fields
+}
+
+/**
+ * Extract ALL top-level YAML key/value pairs from raw frontmatter.
+ * Returns a flat record where scalar values are strings and list values are string[].
+ * Skips `---` delimiters and blank lines.
+ */
+export function extractAllFrontmatterValues(raw: string | null): Record<string, string | string[]> {
+  const result: Record<string, string | string[]> = {}
+  if (!raw) return result
+
+  const lines = raw.split('\n')
+  let currentKey: string | null = null
+
+  for (const line of lines) {
+    if (line === '---' || line.trim() === '') {
+      currentKey = null
+      continue
+    }
+
+    // Top-level key: value
+    const topMatch = line.match(/^(\w[\w\s]*\w|\w+):\s*(.*)$/)
+    if (topMatch) {
+      const key = topMatch[1]
+      const value = topMatch[2].trim()
+      if (value) {
+        result[key] = value
+        currentKey = null
+      } else {
+        // List will follow
+        currentKey = key
+        result[key] = []
+      }
+      continue
+    }
+
+    // List item under current key
+    if (currentKey) {
+      const itemMatch = line.match(/^\s+-\s+(.+)$/)
+      if (itemMatch) {
+        const arr = result[currentKey]
+        if (Array.isArray(arr)) {
+          arr.push(itemMatch[1].trim())
+        }
+      }
+    }
+  }
+
+  return result
+}
+
+/**
+ * Convert a Record of frontmatter fields back to a raw YAML frontmatter string.
+ * Returns null if no non-empty fields remain.
+ */
+export function buildFrontmatter(fields: Record<string, string | string[]>): string | null {
+  const lines: string[] = []
+  for (const [key, value] of Object.entries(fields)) {
+    if (Array.isArray(value)) {
+      if (value.length === 0) continue
+      lines.push(`${key}:`)
+      for (const item of value) {
+        if (item.trim()) lines.push(`  - ${item.trim()}`)
+      }
+    } else {
+      const trimmed = (value ?? '').trim()
+      if (!trimmed) continue
+      lines.push(`${key}: ${trimmed}`)
+    }
+  }
+  if (lines.length === 0) return null
+  return `---\n${lines.join('\n')}\n---`
+}
+
+/** Map known tag values → category for legacy flat-list frontmatter. */
+const LEGACY_TAG_TO_CATEGORY: Record<string, string> = {
+  // relationship
+  investor: 'relationship', customer: 'relationship', prospect: 'relationship',
+  partner: 'relationship', vendor: 'relationship', product: 'relationship',
+  candidate: 'relationship', team: 'relationship', advisor: 'relationship',
+  personal: 'relationship', press: 'relationship', community: 'relationship',
+  government: 'relationship',
+  // relationship_sub
+  primary: 'relationship_sub', secondary: 'relationship_sub',
+  'executive-assistant': 'relationship_sub', cc: 'relationship_sub',
+  'referred-by': 'relationship_sub', former: 'relationship_sub',
+  champion: 'relationship_sub', blocker: 'relationship_sub',
+  // topic
+  sales: 'topic', support: 'topic', legal: 'topic', finance: 'topic',
+  hiring: 'topic', fundraising: 'topic', travel: 'topic', event: 'topic',
+  shopping: 'topic', health: 'topic', learning: 'topic', research: 'topic',
+  // email_type
+  intro: 'email_type', followup: 'email_type',
+  // action
+  'action-required': 'action', urgent: 'action', waiting: 'action',
+  // status
+  active: 'status', archived: 'status', stale: 'status',
+  // source
+  email: 'source', meeting: 'source', browser: 'source',
+  'web-search': 'source', manual: 'source', import: 'source',
+}
+
 /** Tag category keys used in the categorized frontmatter format. */
 const TAG_CATEGORY_KEYS = new Set([
   'relationship',

apps/x/apps/renderer/src/styles/editor.css

@@ -237,34 +237,200 @@
   flex-shrink: 0;
 }
 
-/* Tag pills row shown between toolbar and editor content */
+/* Frontmatter properties panel between toolbar and editor content */
-.tag-pills-row {
+.frontmatter-properties {
-  display: flex;
+  flex-shrink: 0;
-  flex-wrap: wrap;
-  gap: 4px;
-  padding: 4px 12px;
   border-bottom: 1px solid var(--border);
   background-color: var(--background);
-  flex-shrink: 0;
+  font-size: 13px;
-  max-height: 4.5em;
+  color: var(--foreground);
-  overflow: hidden;
 }
 
-.tag-pill {
+.frontmatter-toggle {
-  font-size: 11px;
+  display: flex;
-  line-height: 18px;
+  align-items: center;
-  padding: 0 8px;
+  gap: 4px;
-  border-radius: 9999px;
+  width: 100%;
+  padding: 4px 12px;
+  background: none;
+  border: none;
+  cursor: pointer;
+  color: color-mix(in srgb, var(--foreground) 60%, transparent);
+  font-size: 12px;
+  user-select: none;
+}
+
+.frontmatter-toggle:hover {
+  color: var(--foreground);
+  background-color: color-mix(in srgb, var(--foreground) 4%, transparent);
+}
+
+.frontmatter-chevron {
+  transition: transform 0.15s ease;
+  flex-shrink: 0;
+}
+
+.frontmatter-chevron.expanded {
+  transform: rotate(90deg);
+}
+
+.frontmatter-label {
+  font-weight: 500;
+}
+
+.frontmatter-fields {
+  padding: 2px 12px 6px 30px;
+}
+
+.frontmatter-row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  min-height: 28px;
+}
+
+.frontmatter-key {
+  flex-shrink: 0;
+  width: 110px;
+  font-size: 12px;
+  color: color-mix(in srgb, var(--foreground) 60%, transparent);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.frontmatter-value-area {
+  flex: 1;
+  min-width: 0;
+}
+
+.frontmatter-input {
+  width: 100%;
+  background: none;
+  border: none;
+  border-bottom: 1px solid transparent;
+  padding: 2px 4px;
+  font-size: 13px;
+  color: var(--foreground);
+  outline: none;
+}
+
+.frontmatter-input:focus {
+  border-bottom-color: var(--primary);
+}
+
+.frontmatter-input:read-only {
+  cursor: default;
+}
+
+.frontmatter-new-key-input {
+  width: 110px;
+  flex-shrink: 0;
+}
+
+.frontmatter-remove {
+  flex-shrink: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 18px;
+  height: 18px;
+  background: none;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+  color: color-mix(in srgb, var(--foreground) 40%, transparent);
+  opacity: 0;
+}
+
+.frontmatter-row:hover .frontmatter-remove {
+  opacity: 1;
+}
+
+.frontmatter-remove:hover {
   background-color: color-mix(in srgb, var(--foreground) 8%, transparent);
   color: var(--foreground);
+}
+
+.frontmatter-add {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 4px 4px;
+  margin-top: 2px;
+  background: none;
+  border: none;
+  cursor: pointer;
+  font-size: 12px;
+  color: color-mix(in srgb, var(--foreground) 50%, transparent);
+}
+
+.frontmatter-add:hover {
+  color: var(--foreground);
+}
+
+/* Array field chips */
+.frontmatter-array {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 4px;
+  min-height: 24px;
+}
+
+.frontmatter-chip {
+  display: inline-flex;
+  align-items: center;
+  gap: 2px;
+  font-size: 11px;
+  line-height: 18px;
+  padding: 0 6px;
+  border-radius: 9999px;
+  background-color: color-mix(in srgb, var(--foreground) 8%, transparent);
   white-space: nowrap;
   user-select: none;
 }
 
-.dark .tag-pill {
+.dark .frontmatter-chip {
   background-color: color-mix(in srgb, var(--foreground) 12%, transparent);
 }
 
+.frontmatter-chip-text {
+  max-width: 120px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.frontmatter-chip-remove {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: none;
+  border: none;
+  cursor: pointer;
+  padding: 0;
+  color: color-mix(in srgb, var(--foreground) 50%, transparent);
+  margin-left: 2px;
+}
+
+.frontmatter-chip-remove:hover {
+  color: var(--foreground);
+}
+
+.frontmatter-chip-input {
+  background: none;
+  border: none;
+  outline: none;
+  font-size: 12px;
+  color: var(--foreground);
+  width: 60px;
+  padding: 2px 0;
+}
+
+.frontmatter-chip-input::placeholder {
+  color: color-mix(in srgb, var(--foreground) 30%, transparent);
+}
+
 .editor-toolbar .separator {
   width: 1px;
   height: 1.5rem;