diff --git a/src/content/panel/components/ComponentDetails.tsx b/src/content/panel/components/ComponentDetails.tsx
index 4945665..ee0d5b2 100644
--- a/src/content/panel/components/ComponentDetails.tsx
+++ b/src/content/panel/components/ComponentDetails.tsx
@@ -11,6 +11,7 @@ import { captureElementToClipboard } from '@/lib/screenshot';
 import type { RuntimeMessage } from '@/lib/types';
 import { getPanelHost } from '../../shadow-host';
 import { useEnvHost, useStore } from '../store';
+import { CopyableUri } from './CopyableUri';
 import { Icon } from './Icon';
 import { Breadcrumb } from './Breadcrumb';
 import { AnnotationEditor } from './AnnotationEditor';
@@ -58,7 +59,15 @@ export function ComponentDetails() {
       <h4 className="cs-section-title">Component</h4>
       <Breadcrumb />
       <p className="cs-name">{selected.displayName}</p>
-      {selected.instance && <p className="cs-instance">{selected.instance}</p>}
+      {/* Copy yields the *full* URI even though the displayed text is the
+          shorter instance id — most consumers (Clay tools, fetch URLs, etc.)
+          want the URI, not just the suffix. The full URI surfaces in the
+          tooltip on hover so it's still discoverable. */}
+      <CopyableUri
+        uri={selected.uri}
+        displayText={selected.instance ?? selected.uri}
+        label="Component URI"
+      />
       <div className="cs-link-row">
         <button
           className="cs-link cs-link-primary"
diff --git a/src/content/panel/components/CopyableUri.tsx b/src/content/panel/components/CopyableUri.tsx
new file mode 100644
index 0000000..e8c7ff2
--- /dev/null
+++ b/src/content/panel/components/CopyableUri.tsx
@@ -0,0 +1,53 @@
+import { copyToClipboard } from '@/lib/clipboard';
+import { useStore } from '../store';
+import { Icon } from './Icon';
+
+interface CopyableUriProps {
+  /** The string actually written to the clipboard. */
+  readonly uri: string;
+  /**
+   * Optional shorter text to display in the row. Defaults to `uri`. Useful
+   * for component rows where the visible label is the instance ID but the
+   * value worth copying is the full URI.
+   */
+  readonly displayText?: string;
+  /** Used in the toast + accessible label, e.g. "Page URI" or "Component URI". */
+  readonly label: string;
+}
+
+/**
+ * A URI rendered in muted monospace with a copy-icon button on the right
+ * of the same row. Hover (and keyboard focus) brightens the button so the
+ * affordance is discoverable but not visually noisy at rest.
+ */
+export function CopyableUri({ uri, displayText, label }: CopyableUriProps) {
+  const pushToast = useStore((s) => s.pushToast);
+
+  const onCopy = async () => {
+    const ok = await copyToClipboard(uri);
+    pushToast(ok ? `${label} copied` : 'Copy failed', ok ? 'success' : 'error');
+  };
+
+  // When the displayed text differs from the value being copied (component
+  // rows show the instance id, copy yields the full URI), surface the full
+  // URI in the tooltip so it's still discoverable.
+  const tooltip =
+    displayText && displayText !== uri
+      ? `Copy ${label} to clipboard\n${uri}`
+      : `Copy ${label} to clipboard`;
+
+  return (
+    <div className="cs-uri-row">
+      <p className="cs-instance cs-uri-row-text">{displayText ?? uri}</p>
+      <button
+        type="button"
+        className="cs-icon-btn cs-uri-row-copy"
+        onClick={onCopy}
+        title={tooltip}
+        aria-label={`Copy ${label.toLowerCase()}`}
+      >
+        <Icon name="copy" size={12} />
+      </button>
+    </div>
+  );
+}
diff --git a/src/content/panel/components/PageInfo.tsx b/src/content/panel/components/PageInfo.tsx
index bfd607b..7f54fad 100644
--- a/src/content/panel/components/PageInfo.tsx
+++ b/src/content/panel/components/PageInfo.tsx
@@ -2,6 +2,7 @@ import { buildEditorUrl, buildUrl, unpublishedUri } from '@/lib/clay-uri';
 import { findMappingForHost, rewriteUrlToEnv } from '@/lib/site-host';
 import { SITE_ENV_LABELS, SITE_ENV_ORDER, type RuntimeMessage } from '@/lib/types';
 import { useEnvHost, useStore } from '../store';
+import { CopyableUri } from './CopyableUri';
 import { Icon } from './Icon';
 import { ExportMenu } from './ExportMenu';
 
@@ -31,7 +32,7 @@ export function PageInfo() {
     <section className="cs-section">
       <h4 className="cs-section-title">Page</h4>
       <p className="cs-name">{page.pageInstance ?? 'Unknown page'}</p>
-      <p className="cs-instance">{page.pageUri}</p>
+      <CopyableUri uri={page.pageUri} label="Page URI" />
       <div className="cs-link-row">
         <button
           className="cs-link cs-link-primary"
diff --git a/src/content/panel/styles.css b/src/content/panel/styles.css
index d029b8a..b3c6e4b 100644
--- a/src/content/panel/styles.css
+++ b/src/content/panel/styles.css
@@ -257,6 +257,36 @@
   word-break: break-all;
 }
 
+/* URI row: a single horizontal line with the URI on the left and a small
+   copy-icon button anchored on the right. The button stays muted at rest
+   so it doesn't compete with the URI text, then brightens on row-hover or
+   keyboard focus. */
+.cs-uri-row {
+  display: flex;
+  align-items: flex-start;
+  gap: 6px;
+  margin: 0;
+}
+
+.cs-uri-row-text {
+  flex: 1;
+  min-width: 0;
+  margin: 0;
+}
+
+.cs-uri-row-copy {
+  flex-shrink: 0;
+  opacity: 0.55;
+  transition: opacity 0.12s ease;
+  margin-top: -2px;
+}
+
+.cs-uri-row:hover .cs-uri-row-copy,
+.cs-uri-row-copy:hover,
+.cs-uri-row-copy:focus-visible {
+  opacity: 1;
+}
+
 .cs-link-row {
   display: flex;
   flex-wrap: wrap;