diff --git a/apps/desktop/src/main/services/ConfigService.ts b/apps/desktop/src/main/services/ConfigService.ts
index eac6561..d1b0538 100644
--- a/apps/desktop/src/main/services/ConfigService.ts
+++ b/apps/desktop/src/main/services/ConfigService.ts
@@ -18,7 +18,7 @@ import { getLogger } from './LoggerService'
 const logger = getLogger('ConfigService')
 
 /** 제안/텔레메트리 튜닝 기본값의 현재 개정판. 기본값을 바꾸면 올린다. */
-const SUGGESTION_TUNING_REVISION = 5
+const SUGGESTION_TUNING_REVISION = 6
 
 const INITIAL_SUGGESTION_TUNING = {
   suggestionTriggerDelayMs: 300,
@@ -59,6 +59,11 @@ function migrateSuggestionTuning(activeStore: ElectronStore<AppConfig>): void {
   }
 
   if (current < 5) migrateSuggestionOverlayBindings(activeStore)
+  // 설정 화면에 없는 값인데 설치본에 100ms 가 남아 치는 도중 생성이 시작됐다 — 하한 미만이면 기본값으로.
+  if (current < 6) {
+    const delay = Number(raw.suggestionTriggerDelayMs)
+    if (!Number.isFinite(delay) || delay < 500) activeStore.set('suggestionTriggerDelayMs', 600)
+  }
 
   activeStore.set('suggestionTuningRevision', SUGGESTION_TUNING_REVISION)
   logger.info(
diff --git a/apps/desktop/src/main/services/SuggestionService.ts b/apps/desktop/src/main/services/SuggestionService.ts
index e9b25d5..2410323 100644
--- a/apps/desktop/src/main/services/SuggestionService.ts
+++ b/apps/desktop/src/main/services/SuggestionService.ts
@@ -356,7 +356,11 @@ class SuggestionService extends EventEmitter {
     // 즉시 세션을 끝낸다(사용자 요청 사양: 계속 자라는 접두를 따라가지 않는다).
     // 다음 멈춤에서 정책 게이트를 다시 거쳐 새 세션이 시작된다.
     if (this.isVisible && !matchesSessionPrefix(this._generatedForPrefix, context.prefix)) {
+      logger.debug('제안 닫음: 이어서 입력함 — 멈추면 새 문맥으로 다시 만든다')
       this.dismiss('stale')
+      // 사용자가 고르지 않고 계속 쳤다 — 이 세션 때문에 최소 간격(5초)에 걸려
+      // 정작 멈췄을 때 아무것도 안 뜨면 안 된다. 분당·일일 상한은 그대로 둔다.
+      this._lastRequestAt = Math.min(this._lastRequestAt, now - SUGGESTION_DEFAULTS.minIntervalMs)
       this.emit('state-changed', this.getState())
       return
     }
@@ -1330,7 +1334,10 @@ class SuggestionService extends EventEmitter {
     excludedApps: string[]
   } {
     return {
-      triggerDelayMs: configGet('suggestionTriggerDelayMs') || SUGGESTION_DEFAULTS.triggerDelayMs,
+      triggerDelayMs: Math.max(
+        SUGGESTION_DEFAULTS.minTriggerDelayMs,
+        configGet('suggestionTriggerDelayMs') || SUGGESTION_DEFAULTS.triggerDelayMs
+      ),
       minPrefixChars: configGet('suggestionMinPrefixChars') || SUGGESTION_DEFAULTS.minPrefixChars,
       maxRequestsPerMinute:
         Math.min(
diff --git a/apps/desktop/tests/main/services/ConfigService.test.ts b/apps/desktop/tests/main/services/ConfigService.test.ts
index 03e839e..40702c7 100644
--- a/apps/desktop/tests/main/services/ConfigService.test.ts
+++ b/apps/desktop/tests/main/services/ConfigService.test.ts
@@ -48,7 +48,7 @@ describe('ConfigService suggestion tuning migration', () => {
     )
     await initConfigService()
 
-    expect(configGet('suggestionTuningRevision')).toBe(5)
+    expect(configGet('suggestionTuningRevision')).toBe(6)
     expect(configGet('suggestionTriggerDelayMs')).toBe(600)
     expect(configGet('suggestionMaxRequestsPerMinute')).toBe(6)
     expect(configGet('suggestionMinPrefixChars')).toBe(17)
@@ -114,7 +114,7 @@ describe('ConfigService suggestion tuning migration', () => {
     // 옮기지 않는 액션은 그대로 남는다.
     expect(bindings['suggestion-next']).toEqual(OLD_NEXT)
     expect(bindings['suggestion-prev']).toEqual(OLD_PREV)
-    expect(configGet('suggestionTuningRevision')).toBe(5)
+    expect(configGet('suggestionTuningRevision')).toBe(6)
 
     resetInMemoryConfig()
   })
@@ -144,4 +144,43 @@ describe('ConfigService suggestion tuning migration', () => {
     resetInMemoryConfig()
   })
 
+  it('revision 6: 하한(500ms) 미만으로 남은 멈춤 판단 시간만 기본값 600ms로 되돌린다', async () => {
+    for (const [stored, expected] of [
+      [100, 600],
+      [800, 800],
+    ] as const) {
+      const persisted = { suggestionTuningRevision: 5, suggestionTriggerDelayMs: stored }
+
+      class TestStore<T extends Record<string, unknown>> {
+        store: T
+
+        constructor(options: { defaults: T }) {
+          this.store = { ...options.defaults, ...persisted } as T
+        }
+
+        get<K extends keyof T>(key: K): T[K] {
+          return this.store[key]
+        }
+
+        set<K extends keyof T>(key: K, value: T[K]): void {
+          this.store[key] = value
+        }
+
+        delete(key: string): void {
+          delete this.store[key as keyof T]
+        }
+      }
+
+      vi.doMock('electron-store', () => ({ default: TestStore }))
+      const { configGet, initConfigService, resetInMemoryConfig } = await import(
+        '../../../src/main/services/ConfigService'
+      )
+      await initConfigService()
+      expect(configGet('suggestionTuningRevision')).toBe(6)
+      expect(configGet('suggestionTriggerDelayMs')).toBe(expected)
+      resetInMemoryConfig()
+      vi.doUnmock('electron-store')
+      vi.resetModules()
+    }
+  })
 })
diff --git a/apps/desktop/tests/main/services/input-flow-services.test.ts b/apps/desktop/tests/main/services/input-flow-services.test.ts
index 8f73d3e..4626bc2 100644
--- a/apps/desktop/tests/main/services/input-flow-services.test.ts
+++ b/apps/desktop/tests/main/services/input-flow-services.test.ts
@@ -477,7 +477,8 @@ describe('입력 플로우 서비스', () => {
       available: true,
       appName: 'Notion.exe',
       windowTitle: '회의록',
-      idleMs: 300,
+      // 멈춤 판단 하한(500ms)을 넘긴 멈춤
+      idleMs: 700,
       capturedAt: now,
       editedSinceFocus: true,
       typedRecently: true
diff --git a/packages/core/src/input-intelligence.ts b/packages/core/src/input-intelligence.ts
index 2f625b8..4187c00 100644
--- a/packages/core/src/input-intelligence.ts
+++ b/packages/core/src/input-intelligence.ts
@@ -1276,6 +1276,12 @@ export const SUGGESTION_DEFAULTS = {
    */
   minPrefixChars: 8,
   minIntervalMs: 5000,
+  /**
+   * 멈춤 판단의 하한. 이보다 짧으면 글자 사이의 순간 멈춤에도 생성이 시작돼,
+   * 치는 도중 창이 떴다 사라지기를 반복한다(실측 2026-09-27: 100ms 설정에서
+   * 5~6초마다 생성→소멸 반복).
+   */
+  minTriggerDelayMs: 500,
   maxRequestsPerMinute: 6,
   dailyBudget: 500,
   /** 로컬 기억 경로(폴백)에서 한 번에 만드는 후보 수 — 채우기 루프가 없다. */