diff --git a/doc/README.md b/doc/README.md
index 3521b19..8fcf45b 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -9,4 +9,4 @@ This directory contains technical documentation for DMS.
 - `api-contract.md` - API endpoint contract grouped by route module, including settings and processing-log trim defaults
 - `data-model-reference.md` - database entity definitions and lifecycle states
 - `operations-and-configuration.md` - runtime operations, ports, volumes, and persisted settings configuration
-- `frontend-design-foundation.md` - frontend visual system, tokens, and UI implementation rules
+- `frontend-design-foundation.md` - frontend visual system, tokens, UI implementation rules, and settings helper-copy guidance
diff --git a/doc/frontend-design-foundation.md b/doc/frontend-design-foundation.md
index 0ccf488..ca52093 100644
--- a/doc/frontend-design-foundation.md
+++ b/doc/frontend-design-foundation.md
@@ -50,3 +50,10 @@ When adding or redesigning a UI area:
 3. Implement component styles in `frontend/src/styles.css` using existing layout and variant conventions.
 4. Validate responsive behavior at `1240px`, `1040px`, `760px`, and `560px` breakpoints.
 5. Verify keyboard focus visibility and text contrast before merging.
+
+## Settings UX Copy
+
+- Keep helper copy in settings short and plain language, especially on advanced model and threshold controls.
+- Prefer one concise hint per advanced control that explains practical impact rather than internals.
+- In the Workspace settings block, keep processing-log controls visually separated from default path and tag behavior.
+- Processing-log hints must explicitly state they affect logs and retention behavior, not document metadata values.
diff --git a/frontend/src/components/SettingsScreen.tsx b/frontend/src/components/SettingsScreen.tsx
index 5b27bcd..fe52135 100644
--- a/frontend/src/components/SettingsScreen.tsx
+++ b/frontend/src/components/SettingsScreen.tsx
@@ -1,5 +1,6 @@
 /**
  * Dedicated settings screen for providers, task model bindings, and catalog controls.
+ * Uses concise helper hints for advanced runtime and provider settings.
  */
 import { useCallback, useEffect, useMemo, useState } from 'react';
 import type { JSX } from 'react';
@@ -67,7 +68,7 @@ function clampProcessingLogUnboundEntries(value: number): number {
 }
 
 /**
- * Renders compact human-oriented settings controls.
+ * Renders compact human-oriented settings controls with plain-language hints.
  */
 export default function SettingsScreen({
   settings,
@@ -367,6 +368,7 @@ export default function SettingsScreen({
               onChange={(nextPath) => setUploadDefaults({ ...uploadDefaults, logical_path: nextPath })}
               suggestions={knownPaths}
             />
+            <span className="settings-field-hint">Used when you upload without choosing a path.</span>
           </label>
           <label className="settings-field settings-field-wide">
             Default Tags
@@ -375,6 +377,7 @@ export default function SettingsScreen({
               onChange={(nextTags) => setUploadDefaults({ ...uploadDefaults, tags: nextTags })}
               suggestions={knownTags}
             />
+            <span className="settings-field-hint">Added automatically when no tags are selected.</span>
           </label>
           <label className="settings-field">
             Cards Per Page
@@ -385,7 +388,14 @@ export default function SettingsScreen({
               value={cardsPerPageInput}
               onChange={(event) => setCardsPerPageInput(event.target.value)}
             />
+            <span className="settings-field-hint">Controls how many documents you see at once.</span>
           </label>
+          <div className="settings-subsection-divider">
+            <h4>Processing Log Controls</h4>
+            <p className="small">
+              These settings affect processing logs only. They do not change default path, tags, or document cards.
+            </p>
+          </div>
           <label className="settings-field">
             Keep document sessions
             <input
@@ -403,6 +413,7 @@ export default function SettingsScreen({
                 }
               }}
             />
+            <span className="settings-field-hint">How many recent log sessions to keep for each document.</span>
           </label>
           <label className="settings-field">
             Keep unbound entries
@@ -421,8 +432,9 @@ export default function SettingsScreen({
                 }
               }}
             />
+            <span className="settings-field-hint">How many standalone log entries to keep.</span>
           </label>
-          <label className="inline-checkbox settings-checkbox-field">
+          <label className="inline-checkbox settings-checkbox-field settings-checkbox-with-hint">
             <input
               type="checkbox"
               checked={displaySettings.log_typing_animation_enabled}
@@ -430,7 +442,10 @@ export default function SettingsScreen({
                 setDisplaySettings({ ...displaySettings, log_typing_animation_enabled: event.target.checked })
               }
             />
-            Processing log typing animation enabled
+            <span className="settings-checkbox-copy">
+              Processing log typing animation enabled
+              <span className="settings-field-hint">Shows new log text as a type-in animation.</span>
+            </span>
           </label>
           <p className="small settings-helper-text">
             Processing-log retention values are used by backend trim routines when pruning historical entries.
@@ -565,6 +580,7 @@ export default function SettingsScreen({
                       )
                     }
                   />
+                  <span className="settings-field-hint">Task settings use this ID to select the provider.</span>
                 </label>
                 <label className="settings-field">
                   Label
@@ -596,6 +612,7 @@ export default function SettingsScreen({
                       );
                     }}
                   />
+                  <span className="settings-field-hint">Stop waiting after this many seconds if a call hangs.</span>
                 </label>
                 <label className="settings-field settings-field-wide">
                   Base URL
@@ -609,6 +626,7 @@ export default function SettingsScreen({
                       )
                     }
                   />
+                  <span className="settings-field-hint">API endpoint root for this provider.</span>
                 </label>
                 <label className="settings-field settings-field-wide">
                   API Key
@@ -624,6 +642,7 @@ export default function SettingsScreen({
                       )
                     }
                   />
+                  <span className="settings-field-hint">Leave blank to keep the current stored key.</span>
                 </label>
                 <label className="inline-checkbox settings-checkbox-field">
                   <input
@@ -678,10 +697,12 @@ export default function SettingsScreen({
             <label className="settings-field">
               Model
               <input value={ocrTask.model} onChange={(event) => setOcrTask({ ...ocrTask, model: event.target.value })} />
+              <span className="settings-field-hint">Model name sent to the selected provider.</span>
             </label>
             <label className="settings-field settings-field-wide">
               OCR Prompt
               <textarea value={ocrTask.prompt} onChange={(event) => setOcrTask({ ...ocrTask, prompt: event.target.value })} />
+              <span className="settings-field-hint">Instructions used when reading handwriting text.</span>
             </label>
           </div>
         </div>
@@ -708,6 +729,7 @@ export default function SettingsScreen({
             <label className="settings-field">
               Model
               <input value={summaryTask.model} onChange={(event) => setSummaryTask({ ...summaryTask, model: event.target.value })} />
+              <span className="settings-field-hint">Model name sent to the selected provider.</span>
             </label>
             <label className="settings-field">
               Max Input Tokens
@@ -723,10 +745,12 @@ export default function SettingsScreen({
                   }
                 }}
               />
+              <span className="settings-field-hint">Long inputs are trimmed to this size before summarizing.</span>
             </label>
             <label className="settings-field settings-field-wide">
               Summary Prompt
               <textarea value={summaryTask.prompt} onChange={(event) => setSummaryTask({ ...summaryTask, prompt: event.target.value })} />
+              <span className="settings-field-hint">Instructions that shape the generated summary.</span>
             </label>
           </div>
         </div>
@@ -753,42 +777,56 @@ export default function SettingsScreen({
             <label className="settings-field">
               Model
               <input value={routingTask.model} onChange={(event) => setRoutingTask({ ...routingTask, model: event.target.value })} />
+              <span className="settings-field-hint">Model name sent to the selected provider.</span>
             </label>
             <label className="settings-field">
               Neighbor Count
               <input type="number" value={routingTask.neighbor_count} onChange={(event) => setRoutingTask({ ...routingTask, neighbor_count: Number.parseInt(event.target.value, 10) || routingTask.neighbor_count })} />
+              <span className="settings-field-hint">How many close matches to compare before routing.</span>
             </label>
             <label className="settings-field">
               Min Neighbor Similarity
               <input type="number" step="0.01" min="0" max="1" value={routingTask.neighbor_min_similarity} onChange={(event) => setRoutingTask({ ...routingTask, neighbor_min_similarity: Number.parseFloat(event.target.value) || routingTask.neighbor_min_similarity })} />
+              <span className="settings-field-hint">Ignore neighbors below this match score.</span>
             </label>
             <label className="settings-field">
               Auto Apply Confidence
               <input type="number" step="0.01" min="0" max="1" value={routingTask.auto_apply_confidence_threshold} onChange={(event) => setRoutingTask({ ...routingTask, auto_apply_confidence_threshold: Number.parseFloat(event.target.value) || routingTask.auto_apply_confidence_threshold })} />
+              <span className="settings-field-hint">Minimum model confidence for automatic changes.</span>
             </label>
             <label className="settings-field">
               Auto Apply Neighbor Similarity
               <input type="number" step="0.01" min="0" max="1" value={routingTask.auto_apply_neighbor_similarity_threshold} onChange={(event) => setRoutingTask({ ...routingTask, auto_apply_neighbor_similarity_threshold: Number.parseFloat(event.target.value) || routingTask.auto_apply_neighbor_similarity_threshold })} />
+              <span className="settings-field-hint">Minimum neighbor score for automatic changes.</span>
             </label>
-            <label className="inline-checkbox settings-checkbox-field">
+            <label className="inline-checkbox settings-checkbox-field settings-checkbox-with-hint">
               <input type="checkbox" checked={routingTask.neighbor_path_override_enabled} onChange={(event) => setRoutingTask({ ...routingTask, neighbor_path_override_enabled: event.target.checked })} />
-              Dominant neighbor path override enabled
+              <span className="settings-checkbox-copy">
+                Dominant neighbor path override enabled
+                <span className="settings-field-hint">
+                  If a strong top match disagrees with the model, use the top match path instead.
+                </span>
+              </span>
             </label>
             <label className="settings-field">
               Override Min Similarity
               <input type="number" step="0.01" min="0" max="1" value={routingTask.neighbor_path_override_min_similarity} onChange={(event) => setRoutingTask({ ...routingTask, neighbor_path_override_min_similarity: Number.parseFloat(event.target.value) || routingTask.neighbor_path_override_min_similarity })} />
+              <span className="settings-field-hint">Top neighbor must reach this score to override.</span>
             </label>
             <label className="settings-field">
               Override Min Gap
               <input type="number" step="0.01" min="0" max="1" value={routingTask.neighbor_path_override_min_gap} onChange={(event) => setRoutingTask({ ...routingTask, neighbor_path_override_min_gap: Number.parseFloat(event.target.value) || routingTask.neighbor_path_override_min_gap })} />
+              <span className="settings-field-hint">Top match must beat the second match by at least this gap.</span>
             </label>
             <label className="settings-field">
               Override Max LLM Confidence
               <input type="number" step="0.01" min="0" max="1" value={routingTask.neighbor_path_override_max_confidence} onChange={(event) => setRoutingTask({ ...routingTask, neighbor_path_override_max_confidence: Number.parseFloat(event.target.value) || routingTask.neighbor_path_override_max_confidence })} />
+              <span className="settings-field-hint">Override only runs when model confidence is at or below this level.</span>
             </label>
             <label className="settings-field settings-field-wide">
               Routing Prompt
               <textarea value={routingTask.prompt} onChange={(event) => setRoutingTask({ ...routingTask, prompt: event.target.value })} />
+              <span className="settings-field-hint">Instructions used when deciding document path and tags.</span>
             </label>
           </div>
         </div>
@@ -805,26 +843,32 @@ export default function SettingsScreen({
             <label className="settings-field settings-field-wide">
               Typesense Embedding Model Slug
               <input value={handwritingStyle.embed_model} onChange={(event) => setHandwritingStyle({ ...handwritingStyle, embed_model: event.target.value })} />
+              <span className="settings-field-hint">Embedding model used to compare handwriting style similarity.</span>
             </label>
             <label className="settings-field">
               Neighbor Limit
               <input type="number" min={1} max={32} value={handwritingStyle.neighbor_limit} onChange={(event) => setHandwritingStyle({ ...handwritingStyle, neighbor_limit: Number.parseInt(event.target.value, 10) || handwritingStyle.neighbor_limit })} />
+              <span className="settings-field-hint">How many nearby samples to check during matching.</span>
             </label>
             <label className="settings-field">
               Match Min Similarity
               <input type="number" step="0.01" min="0" max="1" value={handwritingStyle.match_min_similarity} onChange={(event) => setHandwritingStyle({ ...handwritingStyle, match_min_similarity: Number.parseFloat(event.target.value) || handwritingStyle.match_min_similarity })} />
+              <span className="settings-field-hint">Minimum similarity needed to treat two styles as a match.</span>
             </label>
             <label className="settings-field">
               Bootstrap Match Min Similarity
               <input type="number" step="0.01" min="0" max="1" value={handwritingStyle.bootstrap_match_min_similarity} onChange={(event) => setHandwritingStyle({ ...handwritingStyle, bootstrap_match_min_similarity: Number.parseFloat(event.target.value) || handwritingStyle.bootstrap_match_min_similarity })} />
+              <span className="settings-field-hint">Stricter match score used only while bootstrapping new clusters.</span>
             </label>
             <label className="settings-field">
               Bootstrap Sample Size
               <input type="number" min={1} max={30} value={handwritingStyle.bootstrap_sample_size} onChange={(event) => setHandwritingStyle({ ...handwritingStyle, bootstrap_sample_size: Number.parseInt(event.target.value, 10) || handwritingStyle.bootstrap_sample_size })} />
+              <span className="settings-field-hint">Number of samples used to start each new style cluster.</span>
             </label>
             <label className="settings-field">
               Max Image Side (px)
               <input type="number" min={256} max={4096} value={handwritingStyle.image_max_side} onChange={(event) => setHandwritingStyle({ ...handwritingStyle, image_max_side: Number.parseInt(event.target.value, 10) || handwritingStyle.image_max_side })} />
+              <span className="settings-field-hint">Resizes large images to this limit before analysis.</span>
             </label>
           </div>
         </div>
diff --git a/frontend/src/styles.css b/frontend/src/styles.css
index af32913..54c8820 100644
--- a/frontend/src/styles.css
+++ b/frontend/src/styles.css
@@ -976,6 +976,32 @@ button:disabled {
   color: var(--color-text-muted);
 }
 
+.settings-field-hint {
+  margin: 0;
+  font-size: 0.72rem;
+  font-weight: 400;
+  color: #95a6c4;
+  line-height: 1.35;
+}
+
+.settings-subsection-divider {
+  grid-column: span 12;
+  display: grid;
+  gap: 0.2rem;
+  padding-top: 0.2rem;
+  border-top: 1px solid rgba(70, 89, 122, 0.55);
+}
+
+.settings-subsection-divider h4 {
+  margin: 0;
+  font-family: var(--font-display);
+  font-size: 0.82rem;
+}
+
+.settings-subsection-divider p {
+  margin: 0;
+}
+
 .inline-checkbox {
   display: grid;
   grid-template-columns: auto 1fr;
@@ -1004,6 +1030,15 @@ button:disabled {
   color: #dbe8ff;
 }
 
+.settings-checkbox-with-hint {
+  align-items: start;
+}
+
+.settings-checkbox-copy {
+  display: grid;
+  gap: 0.15rem;
+}
+
 .settings-catalog-grid {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));