diff --git a/src/App.tsx b/src/App.tsx
index 2545c495..bb5b7a76 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -86,6 +86,7 @@ function App() {
   useEffect(() => {
     if (!notes.activeTabPath) { setGitHistory([]); return }
     vault.loadGitHistory(notes.activeTabPath).then(setGitHistory)
+  // eslint-disable-next-line react-hooks/exhaustive-deps -- vault object is unstable; loadGitHistory is the actual dep
   }, [notes.activeTabPath, vault.loadGitHistory])
 
   const openCreateTypeDialog = useCallback(() => {
diff --git a/src/components/AIChatPanel.tsx b/src/components/AIChatPanel.tsx
index e6957aaf..dfccf44e 100644
--- a/src/components/AIChatPanel.tsx
+++ b/src/components/AIChatPanel.tsx
@@ -187,6 +187,7 @@ function useContextNotes(entry: VaultEntry | null) {
 
   useEffect(() => {
     if (entry) {
+      // eslint-disable-next-line react-hooks/set-state-in-effect -- sync context when active note changes
       setContextNotes(prev => prev.some(n => n.path === entry.path) ? prev : [entry, ...prev])
     }
   }, [entry?.path]) // eslint-disable-line react-hooks/exhaustive-deps
@@ -215,8 +216,8 @@ export function AIChatPanel({ entry, allContent, entries = [], onClose }: AIChat
   const chat = useAIChat(entry, allContent, ctx.contextNotes, model)
 
   const contextInfo = useMemo(
-    () => buildSystemPrompt(ctx.contextNotes, allContent, model),
-    [ctx.contextNotes, allContent, model],
+    () => buildSystemPrompt(ctx.contextNotes, allContent),
+    [ctx.contextNotes, allContent],
   )
 
   useEffect(() => {
diff --git a/src/components/CommitDialog.tsx b/src/components/CommitDialog.tsx
index 25902c05..c27d6fe2 100644
--- a/src/components/CommitDialog.tsx
+++ b/src/components/CommitDialog.tsx
@@ -16,7 +16,7 @@ export function CommitDialog({ open, modifiedCount, onCommit, onClose }: CommitD
 
   useEffect(() => {
     if (open) {
-      setMessage('')
+      setMessage('') // eslint-disable-line react-hooks/set-state-in-effect -- reset on dialog open
       setTimeout(() => inputRef.current?.focus(), 50)
     }
   }, [open])
diff --git a/src/components/CreateNoteDialog.tsx b/src/components/CreateNoteDialog.tsx
index a0fcf972..0c107a05 100644
--- a/src/components/CreateNoteDialog.tsx
+++ b/src/components/CreateNoteDialog.tsx
@@ -33,8 +33,8 @@ export function CreateNoteDialog({ open, onClose, onCreate, defaultType, customT
 
   useEffect(() => {
     if (open) {
-      setTitle('')
-      setType(defaultType ?? 'Note')
+      // eslint-disable-next-line react-hooks/set-state-in-effect -- reset on dialog open
+      setTitle(''); setType(defaultType ?? 'Note')
       setTimeout(() => inputRef.current?.focus(), 50)
     }
   }, [open, defaultType])
diff --git a/src/components/CreateTypeDialog.tsx b/src/components/CreateTypeDialog.tsx
index 0dfdf90a..14bf7bf2 100644
--- a/src/components/CreateTypeDialog.tsx
+++ b/src/components/CreateTypeDialog.tsx
@@ -15,7 +15,7 @@ export function CreateTypeDialog({ open, onClose, onCreate }: CreateTypeDialogPr
 
   useEffect(() => {
     if (open) {
-      setName('')
+      setName('') // eslint-disable-line react-hooks/set-state-in-effect -- reset on dialog open
       setTimeout(() => inputRef.current?.focus(), 50)
     }
   }, [open])
diff --git a/src/components/Editor.tsx b/src/components/Editor.tsx
index c0f3ceca..088c40cd 100644
--- a/src/components/Editor.tsx
+++ b/src/components/Editor.tsx
@@ -126,7 +126,7 @@ const schema = BlockNoteSchema.create({
 /** Single BlockNote editor view — content is swapped via replaceBlocks */
 function SingleEditorView({ editor, entries, onNavigateWikilink }: { editor: ReturnType<typeof useCreateBlockNote>; entries: VaultEntry[]; onNavigateWikilink: (target: string) => void }) {
   const navigateRef = useRef(onNavigateWikilink)
-  navigateRef.current = onNavigateWikilink
+  useEffect(() => { navigateRef.current = onNavigateWikilink }, [onNavigateWikilink])
   const { cssVars } = useEditorTheme()
 
   // Keep module-level ref in sync so WikiLink renderer can access vault entries
diff --git a/src/components/NoteItem.tsx b/src/components/NoteItem.tsx
index ef55e4c6..644290a5 100644
--- a/src/components/NoteItem.tsx
+++ b/src/components/NoteItem.tsx
@@ -1,4 +1,4 @@
-import type { ComponentType, SVGAttributes } from 'react'
+import { useMemo, type ComponentType, type SVGAttributes } from 'react'
 import type { VaultEntry } from '../types'
 import { cn } from '@/lib/utils'
 import {
@@ -26,11 +26,19 @@ export function getTypeIcon(isA: string | null, customIcon?: string | null): Com
   return (isA && TYPE_ICON_MAP[isA]) || FileText
 }
 
+const THIRTY_DAYS_SECS = 86400 * 30
+
 function TrashDateLine({ entry }: { entry: VaultEntry }) {
-  const trashedAge = entry.trashedAt ? (Date.now() / 1000 - entry.trashedAt) : 0
-  const isExpired = trashedAge >= 86400 * 30
+  const { isExpired, suffix } = useMemo(() => {
+    // eslint-disable-next-line react-hooks/purity -- Date.now() intentionally memoized on trashedAt
+    const trashedAge = entry.trashedAt ? (Date.now() / 1000 - entry.trashedAt) : 0
+    const expired = trashedAge >= THIRTY_DAYS_SECS
+    return {
+      isExpired: expired,
+      suffix: expired ? ' — will be permanently deleted' : '',
+    }
+  }, [entry.trashedAt])
   const style = isExpired ? { color: 'var(--destructive)', fontWeight: 500 } as const : undefined
-  const suffix = isExpired ? ' — will be permanently deleted' : ''
   return (
     <div className="mt-0.5 text-[10px] text-muted-foreground" style={style}>
       Trashed {relativeDate(entry.trashedAt)}{suffix}
@@ -47,7 +55,7 @@ export function NoteItem({ entry, isSelected, typeEntryMap, onSelectNote }: {
   const te = typeEntryMap[entry.isA ?? '']
   const typeColor = getTypeColor(entry.isA ?? 'Note', te?.color)
   const typeLightColor = getTypeLightColor(entry.isA ?? 'Note', te?.color)
-  const TypeIcon = getTypeIcon(entry.isA, te?.icon)
+  const TypeIcon = useMemo(() => getTypeIcon(entry.isA, te?.icon), [entry.isA, te?.icon])
 
   return (
     <div
@@ -62,6 +70,7 @@ export function NoteItem({ entry, isSelected, typeEntryMap, onSelectNote }: {
       }}
       onClick={() => onSelectNote(entry)}
     >
+      {/* eslint-disable-next-line react-hooks/static-components -- icon lookup from static map, no internal state */}
       <TypeIcon width={14} height={14} className="absolute right-3 top-2.5" style={{ color: typeColor }} data-testid="type-icon" />
       <div className="pr-5">
         <div className={cn("truncate text-[13px] text-foreground", isSelected ? "font-semibold" : "font-medium")}>
diff --git a/src/components/NoteList.tsx b/src/components/NoteList.tsx
index df27b172..d35552b0 100644
--- a/src/components/NoteList.tsx
+++ b/src/components/NoteList.tsx
@@ -38,9 +38,10 @@ function PinnedCard({ entry, typeEntryMap, onSelectNote, showDate }: {
   const te = typeEntryMap[entry.isA ?? '']
   const color = getTypeColor(entry.isA ?? '', te?.color)
   const bgColor = getTypeLightColor(entry.isA ?? '', te?.color)
-  const Icon = getTypeIcon(entry.isA, te?.icon)
+  const Icon = useMemo(() => getTypeIcon(entry.isA, te?.icon), [entry.isA, te?.icon])
   return (
     <div className="relative cursor-pointer border-b border-[var(--border)]" style={{ backgroundColor: bgColor, padding: '14px 16px' }} onClick={() => onSelectNote(entry)}>
+      {/* eslint-disable-next-line react-hooks/static-components -- icon lookup from static map, no internal state */}
       <Icon width={16} height={16} className="absolute right-3 top-3.5" style={{ color }} data-testid="type-icon" />
       <div className="pr-6 text-[14px] font-bold" style={{ color }}>{entry.title}</div>
       <div className="mt-1 text-[12px] leading-[1.5] opacity-80" style={{ color, display: '-webkit-box', WebkitLineClamp: 2, WebkitBoxOrient: 'vertical', overflow: 'hidden' }}>{entry.snippet}</div>
@@ -174,10 +175,10 @@ function countExpiredTrash(entries: VaultEntry[]): number {
 
 interface NoteListDataParams {
   entries: VaultEntry[]; selection: SidebarSelection; allContent: Record<string, string>
-  query: string; listSort: SortOption; modifiedFiles?: ModifiedFile[]
+  query: string; listSort: SortOption
 }
 
-function useNoteListData({ entries, selection, allContent, query, listSort, modifiedFiles }: NoteListDataParams) {
+function useNoteListData({ entries, selection, allContent, query, listSort }: NoteListDataParams) {
   const isEntityView = selection.kind === 'entity'
   const isTrashView = selection.kind === 'filter' && selection.filter === 'trash'
 
@@ -190,7 +191,7 @@ function useNoteListData({ entries, selection, allContent, query, listSort, modi
     if (isEntityView) return []
     const sorted = [...filterEntries(entries, selection)].sort(getSortComparator(listSort))
     return filterByQuery(sorted, query)
-  }, [entries, selection, modifiedFiles, isEntityView, listSort, query])
+  }, [entries, selection, isEntityView, listSort, query])
 
   const searchedGroups = useMemo(() => {
     if (!isEntityView) return []
@@ -208,7 +209,7 @@ function useNoteListData({ entries, selection, allContent, query, listSort, modi
 
 // --- Main component ---
 
-function NoteListInner({ entries, selection, selectedNote, allContent, modifiedFiles, onSelectNote, onCreateNote }: NoteListProps) {
+function NoteListInner({ entries, selection, selectedNote, allContent, onSelectNote, onCreateNote }: NoteListProps) {
   const [search, setSearch] = useState('')
   const [searchVisible, setSearchVisible] = useState(false)
   const [collapsedGroups, setCollapsedGroups] = useState<Set<string>>(new Set())
@@ -225,7 +226,7 @@ function NoteListInner({ entries, selection, selectedNote, allContent, modifiedF
   const typeEntryMap = useTypeEntryMap(entries)
   const query = search.trim().toLowerCase()
   const listSort = sortPrefs['__list__'] ?? 'modified'
-  const { isEntityView, isTrashView, typeDocument, searched, searchedGroups, expiredTrashCount } = useNoteListData({ entries, selection, allContent, query, listSort, modifiedFiles })
+  const { isEntityView, isTrashView, typeDocument, searched, searchedGroups, expiredTrashCount } = useNoteListData({ entries, selection, allContent, query, listSort })
 
   const renderItem = useCallback((entry: VaultEntry) => (
     <NoteItem key={entry.path} entry={entry} isSelected={selectedNote?.path === entry.path} typeEntryMap={typeEntryMap} onSelectNote={onSelectNote} />
diff --git a/src/components/QuickOpenPalette.tsx b/src/components/QuickOpenPalette.tsx
index 0d50f84e..4f6aae0b 100644
--- a/src/components/QuickOpenPalette.tsx
+++ b/src/components/QuickOpenPalette.tsx
@@ -39,8 +39,8 @@ export function QuickOpenPalette({ open, entries, onSelect, onClose }: QuickOpen
 
   useEffect(() => {
     if (open) {
-      setQuery('')
-      setSelectedIndex(0)
+      // eslint-disable-next-line react-hooks/set-state-in-effect -- reset on dialog open
+      setQuery(''); setSelectedIndex(0)
       setTimeout(() => inputRef.current?.focus(), 50)
     }
   }, [open])
@@ -58,7 +58,7 @@ export function QuickOpenPalette({ open, entries, onSelect, onClose }: QuickOpen
   }, [entries, query])
 
   useEffect(() => {
-    setSelectedIndex(0)
+    setSelectedIndex(0) // eslint-disable-line react-hooks/set-state-in-effect -- reset selection on query change
   }, [query])
 
   useEffect(() => {
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 0a79ddad..645f0df1 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -56,7 +56,7 @@ function useOutsideClick(ref: React.RefObject<HTMLElement | null>, isOpen: boole
     }
     document.addEventListener('mousedown', handler)
     return () => document.removeEventListener('mousedown', handler)
-  }, [isOpen, onClose])
+  }, [ref, isOpen, onClose])
 }
 
 function buildTypeEntryMap(entries: VaultEntry[]): Record<string, VaultEntry> {
diff --git a/src/hooks/useAIChat.ts b/src/hooks/useAIChat.ts
index 52ded113..9a817369 100644
--- a/src/hooks/useAIChat.ts
+++ b/src/hooks/useAIChat.ts
@@ -61,7 +61,7 @@ export function useAIChat(
       return
     }
 
-    const { prompt: systemPrompt } = buildSystemPrompt(contextNotes, allContent, model)
+    const { prompt: systemPrompt } = buildSystemPrompt(contextNotes, allContent)
     let accumulated = ''
 
     const onChunk = (chunk: string) => {
diff --git a/src/hooks/useAppKeyboard.ts b/src/hooks/useAppKeyboard.ts
index 4ada4e22..a6044972 100644
--- a/src/hooks/useAppKeyboard.ts
+++ b/src/hooks/useAppKeyboard.ts
@@ -1,4 +1,4 @@
-import { useEffect, useMemo } from 'react'
+import { useEffect } from 'react'
 
 interface KeyboardActions {
   onQuickOpen: () => void
@@ -16,22 +16,22 @@ export function useAppKeyboard({
   onQuickOpen, onCreateNote, onSave, onTrashNote, onArchiveNote,
   activeTabPathRef, handleCloseTabRef,
 }: KeyboardActions) {
-  const withActiveTab = (fn: (path: string) => void): ShortcutHandler => () => {
-    const path = activeTabPathRef.current
-    if (path) fn(path)
-  }
-
-  const keyMap = useMemo((): Record<string, ShortcutHandler> => ({
-    p: onQuickOpen,
-    n: onCreateNote,
-    s: onSave,
-    e: withActiveTab(onArchiveNote),
-    w: withActiveTab((path) => handleCloseTabRef.current(path)),
-    Backspace: withActiveTab(onTrashNote),
-    Delete: withActiveTab(onTrashNote),
-  }), [onQuickOpen, onCreateNote, onSave, onTrashNote, onArchiveNote, activeTabPathRef, handleCloseTabRef])
-
   useEffect(() => {
+    const withActiveTab = (fn: (path: string) => void): ShortcutHandler => () => {
+      const path = activeTabPathRef.current
+      if (path) fn(path)
+    }
+
+    const keyMap: Record<string, ShortcutHandler> = {
+      p: onQuickOpen,
+      n: onCreateNote,
+      s: onSave,
+      e: withActiveTab(onArchiveNote),
+      w: withActiveTab((path) => handleCloseTabRef.current(path)),
+      Backspace: withActiveTab(onTrashNote),
+      Delete: withActiveTab(onTrashNote),
+    }
+
     const handleKeyDown = (e: KeyboardEvent) => {
       const mod = e.metaKey || e.ctrlKey
       if (!mod) return
@@ -43,5 +43,5 @@ export function useAppKeyboard({
     }
     window.addEventListener('keydown', handleKeyDown)
     return () => window.removeEventListener('keydown', handleKeyDown)
-  }, [keyMap])
+  }, [onQuickOpen, onCreateNote, onSave, onTrashNote, onArchiveNote, activeTabPathRef, handleCloseTabRef])
 }
diff --git a/src/hooks/useKeyboardNavigation.ts b/src/hooks/useKeyboardNavigation.ts
index ed3fa566..8e93baf2 100644
--- a/src/hooks/useKeyboardNavigation.ts
+++ b/src/hooks/useKeyboardNavigation.ts
@@ -88,7 +88,7 @@ function arrowDirection(key: string): 1 | -1 {
 
 function useLatestRef<T>(value: T): React.RefObject<T> {
   const ref = useRef(value)
-  ref.current = value
+  useEffect(() => { ref.current = value })
   return ref
 }
 
@@ -119,5 +119,5 @@ export function useKeyboardNavigation({
     }
     window.addEventListener('keydown', handleKeyDown)
     return () => window.removeEventListener('keydown', handleKeyDown)
-  }, [])
+  }, [tabsRef, activeTabPathRef, visibleNotesRef, onSwitchTabRef, onReplaceRef, onSelectNoteRef])
 }
diff --git a/src/hooks/useTabManagement.ts b/src/hooks/useTabManagement.ts
index c6e8b7a0..f204ed74 100644
--- a/src/hooks/useTabManagement.ts
+++ b/src/hooks/useTabManagement.ts
@@ -82,9 +82,9 @@ export function useTabManagement() {
   const [tabs, setTabs] = useState<Tab[]>([])
   const [activeTabPath, setActiveTabPath] = useState<string | null>(null)
   const activeTabPathRef = useRef(activeTabPath)
-  activeTabPathRef.current = activeTabPath
+  useEffect(() => { activeTabPathRef.current = activeTabPath })
   const tabsRef = useRef(tabs)
-  tabsRef.current = tabs
+  useEffect(() => { tabsRef.current = tabs })
   const handleCloseTabRef = useRef<(path: string) => void>(() => {})
 
   const handleSelectNote = useCallback(async (entry: VaultEntry) => {
@@ -111,7 +111,7 @@ export function useTabManagement() {
       return next
     })
   }, [])
-  handleCloseTabRef.current = handleCloseTab
+  useEffect(() => { handleCloseTabRef.current = handleCloseTab })
 
   const handleSwitchTab = useCallback((path: string) => {
     setActiveTabPath(path)
@@ -152,7 +152,7 @@ export function useTabManagement() {
   useEffect(() => {
     const savedOrder = loadTabOrder()
     if (savedOrder.length > 0) {
-      setTabs((prev) => restoreOrder(prev, savedOrder))
+      setTabs((prev) => restoreOrder(prev, savedOrder)) // eslint-disable-line react-hooks/set-state-in-effect -- restore tab order on mount
     }
   }, [])
 
diff --git a/src/hooks/useVaultLoader.ts b/src/hooks/useVaultLoader.ts
index 762b19a9..38467908 100644
--- a/src/hooks/useVaultLoader.ts
+++ b/src/hooks/useVaultLoader.ts
@@ -36,6 +36,7 @@ export function useVaultLoader(vaultPath: string) {
   const [modifiedFiles, setModifiedFiles] = useState<ModifiedFile[]>([])
 
   useEffect(() => {
+    // eslint-disable-next-line react-hooks/set-state-in-effect -- clear stale data then load new vault
     setEntries([]); setAllContent({}); setModifiedFiles([])
     loadVaultData(vaultPath)
       .then(({ entries: e, allContent: c }) => { setEntries(e); setAllContent(c) })
@@ -51,7 +52,7 @@ export function useVaultLoader(vaultPath: string) {
     }
   }, [vaultPath])
 
-  useEffect(() => { loadModifiedFiles() }, [loadModifiedFiles])
+  useEffect(() => { loadModifiedFiles() }, [loadModifiedFiles]) // eslint-disable-line react-hooks/set-state-in-effect -- trigger initial load
 
   const addEntry = useCallback((entry: VaultEntry, content: string) => {
     setEntries((prev) => [entry, ...prev])
diff --git a/src/utils/ai-chat.ts b/src/utils/ai-chat.ts
index 46efc99f..2c0535f3 100644
--- a/src/utils/ai-chat.ts
+++ b/src/utils/ai-chat.ts
@@ -35,7 +35,6 @@ export function getContextLimit(): number {
 export function buildSystemPrompt(
   notes: VaultEntry[],
   allContent: Record<string, string>,
-  model: string,
 ): { prompt: string; totalTokens: number; truncated: boolean } {
   if (notes.length === 0) {
     return { prompt: '', totalTokens: 0, truncated: false }