diff --git a/MosaicIQ/src/components/Research/ResearchInspector.tsx b/MosaicIQ/src/components/Research/ResearchInspector.tsx
new file mode 100644
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+++ b/MosaicIQ/src/components/Research/ResearchInspector.tsx
@@ -0,0 +1,367 @@
+import React, { useCallback, useEffect, useRef, useState } from 'react';
+import { createPortal } from 'react-dom';
+import { Pin, Archive, RefreshCw, Sparkles, Maximize2, Minimize2 } from 'lucide-react';
+import type {
+  GhostNote,
+  NoteAuditTrail,
+  NoteType,
+  ResearchNote,
+  ThesisStatus,
+} from '../../types/research';
+import { ConfidenceBadge, EvidenceBadge, FreshnessBadge, NoteTypeBadge, TagChip } from './primitives/Badges';
+import { GHOST_CLASS_LABELS, NOTE_TYPE_LABELS } from './primitives/researchMeta';
+
+interface ResearchInspectorProps {
+  note: ResearchNote | null;
+  ghost: GhostNote | null;
+  auditTrail: NoteAuditTrail | null;
+  isLoadingAuditTrail: boolean;
+  onRefreshAuditTrail: () => void;
+  onUpdateNote: (noteId: string, patch: {
+    rawText?: string;
+    title?: string;
+    noteType?: NoteType;
+    pinned?: boolean;
+    thesisStatus?: ThesisStatus;
+  }) => Promise<unknown>;
+  onArchiveNote: (noteId: string, archived: boolean) => Promise<unknown>;
+  onPromoteNote: (noteId: string, thesisStatus?: ThesisStatus, noteType?: NoteType) => Promise<unknown>;
+  onReviewGhost: (ghostId: string, action: 'accept' | 'ignore' | 'dismiss' | 'pin') => Promise<unknown>;
+}
+
+const editableNoteTypes: NoteType[] = [
+  'fact',
+  'management_signal',
+  'claim',
+  'thesis',
+  'sub_thesis',
+  'risk',
+  'catalyst',
+  'valuation_point',
+  'question',
+  'contradiction',
+  'channel_check',
+  'mosaic_insight',
+];
+
+export const ResearchInspector: React.FC<ResearchInspectorProps> = ({
+  note,
+  ghost,
+  auditTrail,
+  isLoadingAuditTrail,
+  onRefreshAuditTrail,
+  onUpdateNote,
+  onArchiveNote,
+  onPromoteNote,
+  onReviewGhost,
+}) => {
+  const [draftTitle, setDraftTitle] = useState('');
+  const [draftBody, setDraftBody] = useState('');
+  const [draftType, setDraftType] = useState<NoteType>('claim');
+  const [isEditorExpanded, setIsEditorExpanded] = useState(false);
+  const expandedEditorRef = useRef<HTMLTextAreaElement>(null);
+
+  useEffect(() => {
+    if (!note) {
+      return;
+    }
+
+    setDraftTitle(note.title ?? '');
+    setDraftBody(note.rawText);
+    setDraftType(note.noteType);
+  }, [note]);
+
+  useEffect(() => {
+    if (isEditorExpanded && expandedEditorRef.current) {
+      expandedEditorRef.current.focus();
+      expandedEditorRef.current.setSelectionRange(
+        expandedEditorRef.current.value.length,
+        expandedEditorRef.current.value.length,
+      );
+    }
+  }, [isEditorExpanded]);
+
+  const handleExpandKeyDown = useCallback(
+    (e: React.KeyboardEvent) => {
+      if (e.key === 'Escape') {
+        setIsEditorExpanded(false);
+      } else if (e.key === 'Enter' && (e.metaKey || e.ctrlKey)) {
+        e.preventDefault();
+        setIsEditorExpanded(false);
+      }
+    },
+    [],
+  );
+
+  if (!note && !ghost) {
+    return (
+      <div className="flex h-full flex-col justify-between p-4 sm:p-5">
+        <div>
+          <h2 className="text-base font-semibold text-[var(--research-text-strong)] sm:text-lg">
+            Inspector
+          </h2>
+          <p className="mt-2 text-xs leading-6 text-[var(--research-text-muted)] sm:mt-2.5 sm:text-sm">
+            Select a note or ghost note to inspect provenance, links, evidence, and promotion controls.
+          </p>
+        </div>
+      </div>
+    );
+  }
+
+  if (ghost) {
+    return (
+      <div className="space-y-4 p-4 sm:space-y-5 sm:p-5">
+        <div>
+          <div className="text-[10px] uppercase tracking-[0.2em] text-term-text-tertiary">Ghost Note</div>
+          <h2 className="mt-2 text-lg font-semibold text-term-text sm:text-xl">
+            {ghost.headline}
+          </h2>
+          <p className="mt-2.5 text-sm leading-6 text-term-text-muted sm:mt-3 sm:leading-7">
+            {ghost.body}
+          </p>
+        </div>
+
+        <div className="flex flex-wrap gap-2">
+          <TagChip label={GHOST_CLASS_LABELS[ghost.ghostClass]} />
+          <ConfidenceBadge confidence={ghost.confidence} />
+          <FreshnessBadge timestamp={ghost.updatedAt} />
+        </div>
+
+        <div className="grid gap-2.5 sm:gap-3">
+          <button
+            type="button"
+            onClick={() => {
+              void onReviewGhost(ghost.id, 'accept');
+            }}
+            className="w-full rounded-2xl border border-info/40 bg-info/10 px-4 py-2.5 text-sm text-info transition-colors hover:border-info hover:text-term-text sm:py-3"
+          >
+            Accept ghost
+          </button>
+          <button
+            type="button"
+            onClick={() => {
+              void onReviewGhost(ghost.id, 'pin');
+            }}
+            className="w-full rounded-2xl border border-term-border bg-term-surface px-4 py-2.5 text-sm text-term-text transition-colors hover:border-info/50 sm:py-3"
+          >
+            Pin ghost
+          </button>
+          <button
+            type="button"
+            onClick={() => {
+              void onReviewGhost(ghost.id, 'dismiss');
+            }}
+            className="w-full rounded-2xl border border-negative/40 bg-negative/10 px-4 py-2.5 text-sm text-negative transition-colors hover:border-negative/70 sm:py-3"
+          >
+            Dismiss ghost
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-4 p-4 sm:space-y-5 sm:p-5">
+      <div className="flex flex-wrap items-center gap-2">
+        <NoteTypeBadge noteType={note!.noteType} />
+        <EvidenceBadge status={note!.evidenceStatus} />
+        <ConfidenceBadge confidence={note!.confidence} />
+        <FreshnessBadge timestamp={note!.updatedAt} />
+      </div>
+
+      <div className="space-y-3">
+        <label className="flex flex-col gap-2">
+          <span className="text-[10px] uppercase tracking-[0.18em] text-term-text-tertiary">Title</span>
+          <input
+            value={draftTitle}
+            onChange={(event) => setDraftTitle(event.target.value)}
+            className="w-full rounded-2xl border border-term-border bg-term-bg px-3 py-2.5 text-sm text-term-text outline-none transition-colors focus:border-info sm:py-3"
+          />
+        </label>
+        <label className="flex flex-col gap-2">
+          <div className="flex items-center justify-between">
+            <span className="text-[10px] uppercase tracking-[0.18em] text-term-text-tertiary">Body</span>
+            <button
+              type="button"
+              onClick={() => setIsEditorExpanded(true)}
+              className="inline-flex items-center gap-1 rounded-lg border border-term-border bg-term-surface px-1.5 py-1 text-term-text-tertiary transition-colors hover:border-info/60 hover:text-term-text"
+              aria-label="Expand editor"
+            >
+              <Maximize2 className="h-3 w-3" />
+            </button>
+          </div>
+          <textarea
+            value={draftBody}
+            onChange={(event) => setDraftBody(event.target.value)}
+            className="min-h-[160px] w-full rounded-2xl border border-term-border bg-term-bg px-3 py-2.5 text-sm leading-6 text-term-text outline-none transition-colors focus:border-info sm:min-h-40 sm:py-3"
+          />
+        </label>
+        <label className="flex flex-col gap-2">
+          <span className="text-[10px] uppercase tracking-[0.18em] text-term-text-tertiary">Note Type</span>
+          <select
+            value={draftType}
+            onChange={(event) => setDraftType(event.target.value as NoteType)}
+            className="w-full rounded-2xl border border-term-border bg-term-bg px-3 py-2.5 text-sm text-term-text outline-none transition-colors focus:border-info sm:py-3"
+          >
+            {editableNoteTypes.map((noteType) => (
+              <option key={noteType} value={noteType}>
+                {NOTE_TYPE_LABELS[noteType]}
+              </option>
+            ))}
+          </select>
+        </label>
+        <div className="grid grid-cols-2 gap-2.5 sm:gap-3">
+          <button
+            type="button"
+            onClick={() => {
+              void onUpdateNote(note!.id, {
+                title: draftTitle,
+                rawText: draftBody,
+                noteType: draftType,
+              });
+            }}
+            className="rounded-2xl border border-info/40 bg-info/10 px-3 py-2.5 text-sm text-info transition-colors hover:border-info hover:text-term-text sm:px-4 sm:py-3"
+          >
+            Save note
+          </button>
+          <button
+            type="button"
+            onClick={() => {
+              void onPromoteNote(note!.id, 'accepted_core', note!.noteType === 'thesis' ? 'thesis' : 'sub_thesis');
+            }}
+            className="inline-flex items-center justify-center gap-1.5 rounded-2xl border border-positive/35 bg-positive/10 px-3 py-2.5 text-sm text-positive transition-colors hover:border-positive/60 sm:gap-2 sm:px-4 sm:py-3"
+          >
+            <Sparkles className="h-3.5 w-3.5 sm:h-4 sm:w-4" />
+            <span className="hidden xs:inline">Promote</span>
+            <span className="xs:hidden">Promote</span>
+          </button>
+        </div>
+        <div className="grid grid-cols-2 gap-2.5 sm:gap-3">
+          <button
+            type="button"
+            onClick={() => {
+              void onUpdateNote(note!.id, { pinned: !note!.pinned });
+            }}
+            className="inline-flex items-center justify-center gap-1.5 rounded-2xl border border-term-border bg-term-surface px-3 py-2.5 text-sm text-term-text transition-colors hover:border-info/50 sm:gap-2 sm:px-4 sm:py-3"
+          >
+            <Pin className="h-3.5 w-3.5 sm:h-4 sm:w-4" />
+            <span className="hidden xs:inline">{note!.pinned ? 'Unpin' : 'Pin'}</span>
+            <span className="xs:hidden">{note!.pinned ? 'Unpin' : 'Pin'}</span>
+          </button>
+          <button
+            type="button"
+            onClick={() => {
+              void onArchiveNote(note!.id, !note!.archived);
+            }}
+            className="inline-flex items-center justify-center gap-1.5 rounded-2xl border border-negative/40 bg-negative/10 px-3 py-2.5 text-sm text-negative transition-colors hover:border-negative/70 sm:gap-2 sm:px-4 sm:py-3"
+          >
+            <Archive className="h-3.5 w-3.5 sm:h-4 sm:w-4" />
+            <span className="hidden xs:inline">{note!.archived ? 'Restore' : 'Archive'}</span>
+            <span className="xs:hidden">{note!.archived ? 'Restore' : 'Archive'}</span>
+          </button>
+        </div>
+      </div>
+
+      <div className="space-y-3 rounded-2xl border border-term-border bg-term-surface p-3 sm:p-4">
+        <div className="flex items-center justify-between gap-3">
+          <div className="min-w-0 flex-1">
+            <div className="text-[10px] uppercase tracking-[0.18em] text-term-text-tertiary">Audit Trail</div>
+            <div className="mt-1 truncate text-sm text-term-text">
+              {isLoadingAuditTrail ? 'Loading evidence trace...' : `${auditTrail?.links.length ?? 0} links, ${auditTrail?.sources.length ?? 0} sources`}
+            </div>
+          </div>
+          <button
+            type="button"
+            onClick={onRefreshAuditTrail}
+            className="inline-flex shrink-0 items-center gap-1.5 rounded-xl border border-term-border bg-term-bg px-2.5 py-2 text-xs uppercase tracking-[0.18em] text-term-text-tertiary transition-colors hover:border-info/60 hover:text-term-text sm:gap-2 sm:px-3"
+          >
+            <RefreshCw className="h-3.5 w-3.5" />
+            <span className="hidden sm:inline">Refresh</span>
+          </button>
+        </div>
+
+        {auditTrail ? (
+          <div className="space-y-3 text-sm text-term-text-muted">
+            <div>
+              <div className="text-[10px] uppercase tracking-[0.18em] text-term-text-tertiary">Sources</div>
+              <ul className="mt-2 space-y-2">
+                {auditTrail.sources.slice(0, 4).map((source) => (
+                  <li key={source.id} className="truncate text-xs sm:text-sm">
+                    {source.title}
+                  </li>
+                ))}
+              </ul>
+            </div>
+            <div>
+              <div className="text-[10px] uppercase tracking-[0.18em] text-term-text-tertiary">Audit Events</div>
+              <ul className="mt-2 space-y-2">
+                {auditTrail.auditEvents.slice(0, 5).map((event) => (
+                  <li key={event.id} className="text-xs sm:text-sm">
+                    <span className="text-term-text">{event.action}</span>
+                    <span className="text-term-text-tertiary"> • {event.createdAt}</span>
+                  </li>
+                ))}
+              </ul>
+            </div>
+          </div>
+        ) : (
+          <p className="text-sm text-term-text-tertiary">Select a note to inspect its evidence chain.</p>
+        )}
+      </div>
+
+      {isEditorExpanded && note && createPortal(
+        <div
+          className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 p-4"
+          onClick={() => setIsEditorExpanded(false)}
+          role="dialog"
+          aria-modal="true"
+          aria-label="Expanded note editor"
+        >
+          <div
+            className="flex max-h-[90vh] w-full max-w-4xl flex-col overflow-hidden rounded-[24px] border border-term-border bg-term-elevated shadow-2xl"
+            onClick={(e) => e.stopPropagation()}
+            onKeyDown={handleExpandKeyDown}
+          >
+            <div className="flex items-center justify-between border-b border-term-border bg-term-surface px-6 py-4">
+              <div>
+                <h2 className="text-lg font-mono font-semibold text-term-text">Edit Note</h2>
+                <p className="mt-1 text-xs text-term-text-muted">{draftTitle || 'Untitled'}</p>
+              </div>
+              <button
+                type="button"
+                onClick={() => setIsEditorExpanded(false)}
+                className="inline-flex items-center gap-1.5 rounded-xl border border-term-border bg-term-bg px-2.5 py-2 text-term-text-tertiary transition-colors hover:border-info/60 hover:text-term-text"
+                aria-label="Collapse editor"
+              >
+                <Minimize2 className="h-4 w-4" />
+              </button>
+            </div>
+            <div className="flex-1 overflow-y-auto p-6">
+              <textarea
+                ref={expandedEditorRef}
+                value={draftBody}
+                onChange={(e) => setDraftBody(e.target.value)}
+                className="min-h-[50vh] w-full resize-y rounded-2xl border border-term-border bg-term-bg px-4 py-3 text-sm leading-7 text-term-text outline-none transition-colors focus:border-info"
+                placeholder="Write your note..."
+              />
+            </div>
+            <div className="flex items-center justify-between border-t border-term-border bg-term-surface px-6 py-4">
+              <p className="text-[10px] font-mono text-term-text-tertiary">
+                Press <kbd className="rounded border border-term-border bg-term-bg px-1 py-0.5">Esc</kbd> or{' '}
+                <kbd className="rounded border border-term-border bg-term-bg px-1 py-0.5">⌘ Enter</kbd> to collapse
+              </p>
+              <button
+                type="button"
+                onClick={() => setIsEditorExpanded(false)}
+                className="rounded border border-info bg-info px-4 py-2 text-xs font-mono font-semibold text-term-bg transition-colors hover:brightness-110"
+              >
+                Done
+              </button>
+            </div>
+          </div>
+        </div>,
+        document.body,
+      )}
+    </div>
+  );
+};