diff --git a/web/src/app/(app)/settings/page.tsx b/web/src/app/(app)/settings/page.tsx
index 61edd56..29fe051 100644
--- a/web/src/app/(app)/settings/page.tsx
+++ b/web/src/app/(app)/settings/page.tsx
@@ -100,8 +100,8 @@ export default function SettingsPage() {
           {error && <div style={{ color: "var(--nl-danger)", fontSize: "var(--nl-fs-sm)" }}>{error}</div>}
           {success && <div style={{ color: "var(--nl-status-success)", fontSize: "var(--nl-fs-sm)" }}>{success}</div>}
           <form onSubmit={handleChangePassword} style={{ display: "grid", gap: "var(--nl-space-3)" }}>
-            <input className="input-shell" type="password" placeholder="Current password" value={currentPassword} onChange={(e) => setCurrentPassword(e.target.value)} required />
-            <input className="input-shell" type="password" placeholder="New password" minLength={8} value={newPassword} onChange={(e) => setNewPassword(e.target.value)} required />
+            <input className="input-shell" type="password" placeholder="Current password" aria-label="Current password" value={currentPassword} onChange={(e) => setCurrentPassword(e.target.value)} required />
+            <input className="input-shell" type="password" placeholder="New password" aria-label="New password" minLength={8} value={newPassword} onChange={(e) => setNewPassword(e.target.value)} required />
             <button type="submit" disabled={isLoading} style={{ padding: "8px 16px", background: "var(--nl-accent-primary)", color: "var(--nl-on-accent)", border: "none", borderRadius: "var(--nl-radius-sm)", fontWeight: 600, justifySelf: "start" }}>
               {isLoading ? "Updating…" : "Update password"}
             </button>
@@ -176,15 +176,15 @@ MCP API base: ${MCP_SERVER_URL}
       <section className="surface-card" style={{ padding: "var(--nl-space-5)", display: "grid", gap: "var(--nl-space-3)", marginTop: "var(--nl-space-4)" }}>
         <strong>Send feedback</strong>
         <div style={{ display: "grid", gridTemplateColumns: "140px 1fr", gap: "var(--nl-space-3)" }}>
-          <select className="input-shell" value={feedbackType} onChange={(e) => setFeedbackType(e.target.value as typeof feedbackType)}>
+          <select className="input-shell" value={feedbackType} onChange={(e) => setFeedbackType(e.target.value as typeof feedbackType)} aria-label="Feedback type">
             <option value="bug">Bug</option>
             <option value="feature">Feature request</option>
             <option value="praise">Praise</option>
             <option value="other">Other</option>
           </select>
-          <input className="input-shell" placeholder="Title" value={feedbackTitle} onChange={(e) => setFeedbackTitle(e.target.value)} />
+          <input className="input-shell" placeholder="Title" aria-label="Feedback title" value={feedbackTitle} onChange={(e) => setFeedbackTitle(e.target.value)} />
         </div>
-        <textarea className="input-shell" placeholder="Details (optional)" rows={3} value={feedbackBody} onChange={(e) => setFeedbackBody(e.target.value)} style={{ resize: "vertical" }} />
+        <textarea className="input-shell" placeholder="Details (optional)" aria-label="Feedback details" rows={3} value={feedbackBody} onChange={(e) => setFeedbackBody(e.target.value)} style={{ resize: "vertical" }} />
         <button
           onClick={handleSubmitFeedback}
           disabled={submittingFeedback || !feedbackTitle.trim()}
diff --git a/web/src/components/ArtifactPanel.tsx b/web/src/components/ArtifactPanel.tsx
index 8c41e91..2981531 100644
--- a/web/src/components/ArtifactPanel.tsx
+++ b/web/src/components/ArtifactPanel.tsx
@@ -99,6 +99,7 @@ export function ArtifactPanel({
             value={title}
             onChange={(event) => setTitle(event.target.value)}
             placeholder="Artifact title"
+            aria-label="Artifact title"
           />
         </div>
         <div style={{ display: "grid", gridTemplateColumns: "minmax(140px, 180px) minmax(0, 1fr)", gap: "var(--nl-space-3)" }}>
@@ -106,6 +107,7 @@ export function ArtifactPanel({
             className="input-shell"
             value={artifactType}
             onChange={(event) => setArtifactType(event.target.value as "file" | "summary" | "extraction" | "citation" | "export")}
+            aria-label="Artifact type"
           >
             <option value="file">file</option>
             <option value="summary">summary</option>
@@ -118,6 +120,7 @@ export function ArtifactPanel({
             value={blobPath}
             onChange={(event) => setBlobPath(event.target.value)}
             placeholder="Optional blob path"
+            aria-label="Artifact blob path"
           />
         </div>
         <textarea
@@ -125,6 +128,7 @@ export function ArtifactPanel({
           value={description}
           onChange={(event) => setDescription(event.target.value)}
           placeholder="Description"
+          aria-label="Artifact description"
           style={{ minHeight: 96, resize: "vertical" }}
         />
         <div style={{ display: "flex", justifyContent: "flex-end", gap: "var(--nl-space-2)" }}>
@@ -173,6 +177,7 @@ export function ArtifactPanel({
                   void handleOpenArtifact(artifact);
                 }}
                 disabled={openingId === artifact.id}
+                aria-label={`Open artifact: ${artifact.name}`}
               >
                 {openingId === artifact.id ? "Opening…" : "Open"}
               </button>
diff --git a/web/src/components/CreateNoteModal.tsx b/web/src/components/CreateNoteModal.tsx
index b450dc3..c477b2e 100644
--- a/web/src/components/CreateNoteModal.tsx
+++ b/web/src/components/CreateNoteModal.tsx
@@ -94,6 +94,7 @@ export function CreateNoteModal({ workspaces, defaultWorkspaceId, onCreated, onC
           <span style={{ fontWeight: 600, fontSize: "0.875rem" }}>Template</span>
           <select
             className="input"
+            aria-label="Note template"
             value={templateId}
             onChange={(e) => {
               const v = e.target.value;
@@ -115,7 +116,7 @@ export function CreateNoteModal({ workspaces, defaultWorkspaceId, onCreated, onC
 
         <label style={{ display: "grid", gap: "var(--nl-space-1)" }}>
           <span style={{ fontWeight: 600, fontSize: "0.875rem" }}>Workspace</span>
-          <select value={workspaceId} onChange={(e) => setWorkspaceId(e.target.value)} className="input">
+          <select value={workspaceId} onChange={(e) => setWorkspaceId(e.target.value)} className="input" aria-label="Workspace">
             {workspaces.map((ws) => (
               <option key={ws.id} value={ws.id}>
                 {ws.name}
@@ -132,6 +133,7 @@ export function CreateNoteModal({ workspaces, defaultWorkspaceId, onCreated, onC
             value={title}
             onChange={(e) => setTitle(e.target.value)}
             placeholder="Note title"
+            aria-label="Note title"
             autoFocus
           />
         </label>
@@ -143,6 +145,7 @@ export function CreateNoteModal({ workspaces, defaultWorkspaceId, onCreated, onC
             value={body}
             onChange={(e) => setBody(e.target.value)}
             placeholder="Note content..."
+            aria-label="Note body"
             rows={6}
             style={{ resize: "vertical" }}
           />
@@ -156,6 +159,7 @@ export function CreateNoteModal({ workspaces, defaultWorkspaceId, onCreated, onC
             value={tags}
             onChange={(e) => setTags(e.target.value)}
             placeholder="launch, meeting, review"
+            aria-label="Note tags"
           />
         </label>
 
diff --git a/web/src/components/CreateWorkspaceModal.tsx b/web/src/components/CreateWorkspaceModal.tsx
index 0ab69b2..f85fdb6 100644
--- a/web/src/components/CreateWorkspaceModal.tsx
+++ b/web/src/components/CreateWorkspaceModal.tsx
@@ -51,12 +51,12 @@ export function CreateWorkspaceModal({ onCreated, onClose }: Props) {
 
         <label style={{ display: "grid", gap: 6 }}>
           <span style={{ fontWeight: 600, fontSize: "var(--nl-fs-sm)" }}>Name</span>
-          <input className="input-shell" type="text" required value={name} onChange={(e) => setName(e.target.value)} autoFocus />
+          <input className="input-shell" type="text" required value={name} onChange={(e) => setName(e.target.value)} aria-label="Workspace name" autoFocus />
         </label>
 
         <label style={{ display: "grid", gap: 6 }}>
           <span style={{ fontWeight: 600, fontSize: "var(--nl-fs-sm)" }}>Description</span>
-          <textarea className="input-shell" value={description} onChange={(e) => setDescription(e.target.value)} rows={3} style={{ resize: "vertical" }} />
+          <textarea className="input-shell" value={description} onChange={(e) => setDescription(e.target.value)} rows={3} style={{ resize: "vertical" }} aria-label="Workspace description" />
         </label>
 
         <div style={{ display: "flex", justifyContent: "flex-end", gap: "var(--nl-space-3)" }}>
diff --git a/web/src/components/LinkNoteModal.tsx b/web/src/components/LinkNoteModal.tsx
index e9499aa..3799d0b 100644
--- a/web/src/components/LinkNoteModal.tsx
+++ b/web/src/components/LinkNoteModal.tsx
@@ -97,6 +97,7 @@ export function LinkNoteModal({ noteId, workspaceId, existingLinkedIds, onLinked
             value={query}
             onChange={(e) => setQuery(e.target.value)}
             placeholder="Search notes..."
+            aria-label="Search notes to link"
             style={{ flex: 1 }}
             autoFocus
           />
@@ -123,6 +124,7 @@ export function LinkNoteModal({ noteId, workspaceId, existingLinkedIds, onLinked
                   border: selectedId === note.id ? "2px solid var(--nl-accent-primary)" : "2px solid transparent",
                 }}
                 onClick={() => setSelectedId(note.id)}
+                aria-label={`Select note: ${note.title}`}
               >
                 <div style={{ fontWeight: 600 }}>{note.title}</div>
                 <div style={{ color: "var(--nl-text-secondary)", fontSize: "0.875rem" }}>{note.excerpt}</div>
@@ -134,7 +136,7 @@ export function LinkNoteModal({ noteId, workspaceId, existingLinkedIds, onLinked
         {selectedId && (
           <label style={{ display: "grid", gap: "var(--nl-space-1)" }}>
             <span style={{ fontWeight: 600, fontSize: "0.875rem" }}>Relationship type</span>
-            <select value={relationshipType} onChange={(e) => setRelationshipType(e.target.value)} className="input">
+            <select value={relationshipType} onChange={(e) => setRelationshipType(e.target.value)} className="input" aria-label="Relationship type">
               {RELATIONSHIP_TYPES.map((rt) => (
                 <option key={rt} value={rt}>
                   {rt.replace("_", " ")}
diff --git a/web/src/components/NoteEditor.tsx b/web/src/components/NoteEditor.tsx
index baf728d..79bbae3 100644
--- a/web/src/components/NoteEditor.tsx
+++ b/web/src/components/NoteEditor.tsx
@@ -25,9 +25,9 @@ const TOOLBAR_BTN_ACTIVE: React.CSSProperties = {
   color: "var(--nl-text-primary)",
 };
 
-function ToolbarButton({ active, onClick, label }: { active: boolean; onClick: () => void; label: string }) {
+function ToolbarButton({ active, onClick, label, ariaLabel }: { active: boolean; onClick: () => void; label: string; ariaLabel: string }) {
   return (
-    <button type="button" style={active ? TOOLBAR_BTN_ACTIVE : TOOLBAR_BTN} onClick={onClick} title={label}>
+    <button type="button" style={active ? TOOLBAR_BTN_ACTIVE : TOOLBAR_BTN} onClick={onClick} title={label} aria-label={ariaLabel}>
       {label}
     </button>
   );
@@ -194,18 +194,18 @@ export function NoteEditor({
 
           {editor && (
             <div style={{ display: "flex", gap: 4, flexWrap: "wrap", padding: "4px 0" }}>
-              <ToolbarButton active={editor.isActive("bold")} onClick={() => editor.chain().focus().toggleBold().run()} label="B" />
-              <ToolbarButton active={editor.isActive("italic")} onClick={() => editor.chain().focus().toggleItalic().run()} label="I" />
-              <ToolbarButton active={editor.isActive("strike")} onClick={() => editor.chain().focus().toggleStrike().run()} label="S" />
+              <ToolbarButton active={editor.isActive("bold")} onClick={() => editor.chain().focus().toggleBold().run()} label="B" ariaLabel="Bold" />
+              <ToolbarButton active={editor.isActive("italic")} onClick={() => editor.chain().focus().toggleItalic().run()} label="I" ariaLabel="Italic" />
+              <ToolbarButton active={editor.isActive("strike")} onClick={() => editor.chain().focus().toggleStrike().run()} label="S" ariaLabel="Strikethrough" />
               <span style={{ width: 1, background: "var(--nl-border-default)", margin: "0 4px" }} />
-              <ToolbarButton active={editor.isActive("heading", { level: 1 })} onClick={() => editor.chain().focus().toggleHeading({ level: 1 }).run()} label="H1" />
-              <ToolbarButton active={editor.isActive("heading", { level: 2 })} onClick={() => editor.chain().focus().toggleHeading({ level: 2 }).run()} label="H2" />
-              <ToolbarButton active={editor.isActive("heading", { level: 3 })} onClick={() => editor.chain().focus().toggleHeading({ level: 3 }).run()} label="H3" />
+              <ToolbarButton active={editor.isActive("heading", { level: 1 })} onClick={() => editor.chain().focus().toggleHeading({ level: 1 }).run()} label="H1" ariaLabel="Heading level 1" />
+              <ToolbarButton active={editor.isActive("heading", { level: 2 })} onClick={() => editor.chain().focus().toggleHeading({ level: 2 }).run()} label="H2" ariaLabel="Heading level 2" />
+              <ToolbarButton active={editor.isActive("heading", { level: 3 })} onClick={() => editor.chain().focus().toggleHeading({ level: 3 }).run()} label="H3" ariaLabel="Heading level 3" />
               <span style={{ width: 1, background: "var(--nl-border-default)", margin: "0 4px" }} />
-              <ToolbarButton active={editor.isActive("bulletList")} onClick={() => editor.chain().focus().toggleBulletList().run()} label="•" />
-              <ToolbarButton active={editor.isActive("orderedList")} onClick={() => editor.chain().focus().toggleOrderedList().run()} label="1." />
-              <ToolbarButton active={editor.isActive("codeBlock")} onClick={() => editor.chain().focus().toggleCodeBlock().run()} label="<>" />
-              <ToolbarButton active={editor.isActive("blockquote")} onClick={() => editor.chain().focus().toggleBlockquote().run()} label="❝" />
+              <ToolbarButton active={editor.isActive("bulletList")} onClick={() => editor.chain().focus().toggleBulletList().run()} label="•" ariaLabel="Bullet list" />
+              <ToolbarButton active={editor.isActive("orderedList")} onClick={() => editor.chain().focus().toggleOrderedList().run()} label="1." ariaLabel="Numbered list" />
+              <ToolbarButton active={editor.isActive("codeBlock")} onClick={() => editor.chain().focus().toggleCodeBlock().run()} label="<>" ariaLabel="Code block" />
+              <ToolbarButton active={editor.isActive("blockquote")} onClick={() => editor.chain().focus().toggleBlockquote().run()} label="❝" ariaLabel="Block quote" />
             </div>
           )}
 
@@ -244,7 +244,7 @@ export function NoteEditor({
           {explainResult && (
             <div style={{ background: "var(--nl-surface-card)", border: "1px solid var(--nl-border-default)", borderRadius: "var(--nl-radius-md)", padding: "var(--nl-space-3)", fontSize: "var(--nl-fs-sm)", color: "var(--nl-text-secondary)", display: "flex", gap: 8, alignItems: "flex-start" }}>
               <div style={{ flex: 1 }}>{explainResult}</div>
-              <button type="button" style={{ ...TOOLBAR_BTN, fontSize: 12 }} onClick={() => setExplainResult(null)}>✕</button>
+              <button type="button" style={{ ...TOOLBAR_BTN, fontSize: 12 }} onClick={() => setExplainResult(null)} aria-label="Dismiss explanation">✕</button>
             </div>
           )}
 
diff --git a/web/src/components/SurveyBanner.tsx b/web/src/components/SurveyBanner.tsx
index 1dabf82..d9541e9 100644
--- a/web/src/components/SurveyBanner.tsx
+++ b/web/src/components/SurveyBanner.tsx
@@ -84,7 +84,7 @@ export function SurveyBanner() {
         <span><strong>{survey.title}</strong> — Quick survey ({survey.questions.length} questions)</span>
         <div style={{ display: "flex", gap: "var(--nl-space-3)" }}>
           <button onClick={handleStart} style={{ background: "var(--nl-accent-primary)", color: "var(--nl-on-accent)", border: "none", borderRadius: "var(--nl-radius-sm)", padding: "4px 12px", fontWeight: 600, cursor: "pointer" }}>Start</button>
-          <button onClick={dismiss} style={{ background: "none", border: "none", color: "var(--nl-text-secondary)", cursor: "pointer" }}>&times;</button>
+          <button onClick={dismiss} aria-label="Dismiss survey" style={{ background: "none", border: "none", color: "var(--nl-text-secondary)", cursor: "pointer" }}>&times;</button>
         </div>
       </div>
     );
@@ -125,6 +125,7 @@ export function SurveyBanner() {
           placeholder="Your answer…"
           value={getTextValue()}
           onChange={(e) => handleAnswer(question, e.target.value)}
+          aria-label="Survey answer"
         />
       )}
 
@@ -134,6 +135,7 @@ export function SurveyBanner() {
             <button
               key={n}
               onClick={() => handleAnswer(question, String(n))}
+              aria-label={`Rate ${n}`}
               style={{
                 width: 36, height: 36,
                 borderRadius: "var(--nl-radius-sm)",
@@ -155,6 +157,7 @@ export function SurveyBanner() {
             <button
               key={opt.id}
               onClick={() => handleAnswer(question, opt.id)}
+              aria-label={`Choose ${opt.text}`}
               style={{
                 padding: "4px 12px",
                 borderRadius: "var(--nl-radius-sm)",
diff --git a/web/src/components/TaskReviewPanel.tsx b/web/src/components/TaskReviewPanel.tsx
index fb2c95d..841507b 100644
--- a/web/src/components/TaskReviewPanel.tsx
+++ b/web/src/components/TaskReviewPanel.tsx
@@ -51,6 +51,7 @@ export function TaskReviewPanel({
           value={description}
           onChange={(event) => setDescription(event.target.value)}
           placeholder="Description"
+          aria-label="Task description"
           style={{ minHeight: 96, resize: "vertical" }}
         />
         <div style={{ display: "flex", justifyContent: "flex-end" }}>