diff --git a/src/ChatDatabasePicker.jsx b/src/ChatDatabasePicker.jsx
deleted file mode 100644
index 55cc1bb..0000000
--- a/src/ChatDatabasePicker.jsx
+++ /dev/null
@@ -1,101 +0,0 @@
-import { useEffect, useRef, useState } from 'react'
-
-export default function ChatDatabasePicker({
-  activeSessionId,
-  chatLibrary,
-  chatLibrarySlug,
-  chatLibraryStatusSuffix,
-  isLibrarySyncing,
-  libraries,
-  setChatLibraryForSession,
-}) {
-  const dbPickerRef = useRef(null)
-  const [isDbPickerOpen, setIsDbPickerOpen] = useState(false)
-
-  useEffect(() => {
-    if (!isDbPickerOpen) return
-
-    const onPointerDown = (event) => {
-      if (!dbPickerRef.current?.contains(event.target)) {
-        setIsDbPickerOpen(false)
-      }
-    }
-
-    document.addEventListener('mousedown', onPointerDown)
-    return () => document.removeEventListener('mousedown', onPointerDown)
-  }, [isDbPickerOpen])
-
-  useEffect(() => {
-    setIsDbPickerOpen(false)
-  }, [activeSessionId])
-
-  return (
-    <div className="footer-tool-group" ref={dbPickerRef}>
-      <button
-        type="button"
-        className={"db-picker-toggle" + (chatLibrary ? " active" : "")}
-        onClick={() => {
-          if (!activeSessionId) return
-          setIsDbPickerOpen(prev => !prev)
-        }}
-        title={chatLibrary ? `Database: ${chatLibrary.name}${chatLibraryStatusSuffix}` : 'Select database for this chat'}
-        aria-haspopup="menu"
-        aria-expanded={isDbPickerOpen}
-        disabled={!activeSessionId}
-      >
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none"
-             stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"
-             aria-hidden="true">
-          <ellipse cx="12" cy="5" rx="8" ry="3"/>
-          <path d="M4 5v6c0 1.7 3.6 3 8 3s8-1.3 8-3V5"/>
-          <path d="M4 11v6c0 1.7 3.6 3 8 3s8-1.3 8-3v-6"/>
-        </svg>
-      </button>
-      {isDbPickerOpen && (
-        <div className="db-picker-menu" role="menu">
-          <button
-            type="button"
-            className={"db-picker-option" + (!chatLibrarySlug ? " selected" : "")}
-            onClick={() => {
-              setChatLibraryForSession(activeSessionId, null)
-              setIsDbPickerOpen(false)
-            }}
-          >
-            <span>No database</span>
-            {!chatLibrarySlug && <span className="db-picker-status">Selected</span>}
-          </button>
-          {libraries.length === 0 ? (
-            <div className="db-picker-empty">No databases yet.</div>
-          ) : (
-            libraries.map(library => {
-              const selected = chatLibrarySlug === library.slug
-              const syncing = isLibrarySyncing(library.slug)
-              const status = !library.files?.length
-                ? 'Empty'
-                : library.states?.is_indexed
-                  ? 'Ready'
-                  : syncing
-                    ? 'Syncing'
-                    : 'Needs sync'
-
-              return (
-                <button
-                  key={library.slug}
-                  type="button"
-                  className={"db-picker-option" + (selected ? " selected" : "")}
-                  onClick={() => {
-                    setChatLibraryForSession(activeSessionId, library.slug)
-                    setIsDbPickerOpen(false)
-                  }}
-                >
-                  <span>{library.name}</span>
-                  <span className="db-picker-status">{selected ? 'Selected' : status}</span>
-                </button>
-              )
-            })
-          )}
-        </div>
-      )}
-    </div>
-  )
-}
diff --git a/src/WebsearchSettings.jsx b/src/WebsearchSettings.jsx
index 27ad080..4402427 100644
--- a/src/WebsearchSettings.jsx
+++ b/src/WebsearchSettings.jsx
@@ -70,7 +70,7 @@ return (
         onChange={handleBackendUrlChange}
         placeholder={`e.g., ${DEFAULT_BACKEND_API_URL}`}
       />
-      <p className="setting-description">Internal UI requests like chats, sessions, and databases go to this URL.</p>
+      <p className="setting-description">Internal UI requests like chats, sessions, and Knowledge go to this URL.</p>
     </div>
 
     <div className="setting-section">
diff --git a/src/appConfig.js b/src/appConfig.js
index 812d129..f22481f 100644
--- a/src/appConfig.js
+++ b/src/appConfig.js
@@ -2,7 +2,6 @@ export const API_URL_KEY = 'backendApiUrl'
 export const COLOR_SCHEME_KEY = 'colorScheme'
 export const WEBSEARCH_URL_KEY = 'websearch.searxUrl'
 export const WEBSEARCH_ENGINES_KEY = 'websearch.engines'
-export const CHAT_LIBRARY_MAP_KEY = 'chat.libraryBySession'
 export const CHAT_WORKFLOW_MAP_KEY = 'chat.workflowBySession'
 export const DEFAULT_SEARX_URL = 'http://127.0.0.1:8888'
 export const DEFAULT_BACKEND_API_URL = import.meta.env.VITE_API_URL ?? 'http://127.0.0.1:8000'
diff --git a/src/useChatLibrarySelection.js b/src/useChatLibrarySelection.js
deleted file mode 100644
index 6f023bf..0000000
--- a/src/useChatLibrarySelection.js
+++ /dev/null
@@ -1,124 +0,0 @@
-import { useEffect, useMemo, useState } from 'react'
-import { CHAT_LIBRARY_MAP_KEY } from './appConfig'
-
-function libraryJobIsActive(job) {
-  return job?.status === 'queued' || job?.status === 'running'
-}
-
-function getLibraryStatusSuffix(library, hasActiveJob) {
-  if (!library) return ''
-  if (!library.files?.length) return ' (empty)'
-  if (library.states?.is_indexed) return ''
-  return hasActiveJob ? ' (syncing)' : ' (needs sync)'
-}
-
-function loadChatLibraryMap() {
-  try {
-    const raw = localStorage.getItem(CHAT_LIBRARY_MAP_KEY)
-    return raw ? JSON.parse(raw) : {}
-  } catch {
-    return {}
-  }
-}
-
-export function useChatLibrarySelection({ activeSessionId, libraries, libraryJobs }) {
-  const [chatLibraryBySession, setChatLibraryBySession] = useState(loadChatLibraryMap)
-
-  useEffect(() => {
-    try {
-      localStorage.setItem(CHAT_LIBRARY_MAP_KEY, JSON.stringify(chatLibraryBySession || {}))
-    } catch {}
-  }, [chatLibraryBySession])
-
-  useEffect(() => {
-    const validSlugs = new Set(libraries.map(library => library.slug))
-    setChatLibraryBySession(prev => {
-      let changed = false
-      const next = {}
-      for (const [sessionId, slug] of Object.entries(prev || {})) {
-        if (validSlugs.has(slug)) {
-          next[sessionId] = slug
-        } else {
-          changed = true
-        }
-      }
-      return changed ? next : prev
-    })
-  }, [libraries])
-
-  const chatLibrarySlug = activeSessionId ? (chatLibraryBySession[activeSessionId] || null) : null
-
-  const chatLibrary = useMemo(() => {
-    return libraries.find(lib => lib.slug === chatLibrarySlug) || null
-  }, [chatLibrarySlug, libraries])
-
-  const chatLibraryHasActiveJob = useMemo(() => {
-    if (!chatLibrarySlug) return false
-    return libraryJobs.some(job => job.slug === chatLibrarySlug && libraryJobIsActive(job))
-  }, [chatLibrarySlug, libraryJobs])
-
-  const chatLibraryStatusSuffix = useMemo(() => {
-    return getLibraryStatusSuffix(chatLibrary, chatLibraryHasActiveJob)
-  }, [chatLibrary, chatLibraryHasActiveJob])
-
-  function getChatLibrarySlugForSession(sessionId) {
-    if (!sessionId) return null
-    return chatLibraryBySession[sessionId] || null
-  }
-
-  function getChatLibraryForSession(sessionId) {
-    const slug = getChatLibrarySlugForSession(sessionId)
-    if (!slug) return null
-    return libraries.find(lib => lib.slug === slug) || null
-  }
-
-  function isLibrarySyncing(slug) {
-    if (!slug) return false
-    return libraryJobs.some(job => job.slug === slug && libraryJobIsActive(job))
-  }
-
-  function setChatLibraryForSession(sessionId, slug) {
-    if (!sessionId) return
-    setChatLibraryBySession(prev => {
-      const next = { ...(prev || {}) }
-      if (slug) {
-        next[sessionId] = slug
-      } else {
-        delete next[sessionId]
-      }
-      return next
-    })
-  }
-
-  function removeLibraryFromChatSelections(slug) {
-    if (!slug) return
-    setChatLibraryBySession(prev => {
-      let changed = false
-      const next = {}
-      for (const [sessionId, librarySlug] of Object.entries(prev || {})) {
-        if (librarySlug === slug) {
-          changed = true
-          continue
-        }
-        next[sessionId] = librarySlug
-      }
-      return changed ? next : prev
-    })
-  }
-
-  function clearChatLibrarySelections() {
-    setChatLibraryBySession({})
-  }
-
-  return {
-    chatLibrary,
-    chatLibraryBySession,
-    chatLibrarySlug,
-    chatLibraryStatusSuffix,
-    clearChatLibrarySelections,
-    getChatLibraryForSession,
-    isLibrarySyncing,
-    removeLibraryFromChatSelections,
-    setChatLibraryForSession,
-  }
-}
diff --git a/src/workflows/WorkflowConfirmationDialog.jsx b/src/workflows/WorkflowConfirmationDialog.jsx
index 1d53039..221ad17 100644
--- a/src/workflows/WorkflowConfirmationDialog.jsx
+++ b/src/workflows/WorkflowConfirmationDialog.jsx
@@ -8,7 +8,7 @@ export default function WorkflowConfirmationDialog({ confirmation, onRespond })
       <div className="workflow-confirmation-dialog">
         <h3>Confirm workflow action</h3>
         <p>This workflow wants to run <code>{confirmation.payload?.tool}</code>.</p>
-        {args.library_slug && <p><strong>Destination:</strong> {args.library_slug}</p>}
+        {args.library_slug && <p><strong>Destination:</strong> Knowledge</p>}
         {args.title && <p><strong>Title:</strong> {args.title}</p>}
         {args.message_id && <p><strong>Message:</strong> {args.message_id}</p>}
         {args.url && <p><strong>URL:</strong> {args.url}</p>}