diff --git a/src/__tests__/commands/developer.test.ts b/src/__tests__/commands/developer.test.ts
index 63ca0ba364..b41dbb1d4e 100644
--- a/src/__tests__/commands/developer.test.ts
+++ b/src/__tests__/commands/developer.test.ts
@@ -143,6 +143,60 @@ describe('handleDeveloperSearchCommand', () => {
       expect(content).toContain('rust: not indexed');
     });
 
+    it('prints a result URL only when its id does not contain it', async () => {
+      const duplicateUrl = 'https://docs.rs/tokio/latest/tokio';
+      mockHttpGet.mockResolvedValue(
+        mockDeveloperResponse([
+          sampleResult,
+          {
+            id: `web:${duplicateUrl}`,
+            url: duplicateUrl,
+            title: 'Tokio docs',
+            passages: [{ text: 'Runtime documentation.' }],
+          },
+          {
+            id: `web:${duplicateUrl}/search`,
+            url: duplicateUrl,
+            title: 'Tokio search',
+            passages: [{ text: 'Search documentation.' }],
+          },
+        ])
+      );
+
+      await handleDeveloperSearchCommand({ query: 'tokio runtime' });
+
+      const [content] = vi.mocked(writeOutput).mock.calls[0] as [string];
+      expect(content.split(duplicateUrl).length - 1).toBe(3);
+      expect(content).toContain(
+        `## [web:${duplicateUrl}/search] Tokio search\n${duplicateUrl}\n`
+      );
+      expect(content).toContain(
+        '\nhttps://github.com/tokio-rs/tokio/issues/2309\n'
+      );
+    });
+
+    it('does not render separators for empty passages', async () => {
+      mockHttpGet.mockResolvedValue(
+        mockDeveloperResponse([
+          {
+            ...sampleResult,
+            passages: [
+              { text: '' },
+              { text: ' ' },
+              { text: 'The answer.' },
+              {},
+            ],
+          },
+        ])
+      );
+
+      await handleDeveloperSearchCommand({ query: 'tokio runtime' });
+
+      const [content] = vi.mocked(writeOutput).mock.calls[0] as [string];
+      expect(content).toContain('\nThe answer.');
+      expect(content).not.toContain('---');
+    });
+
     it('renders citation URLs and object license disclosures', async () => {
       mockHttpGet.mockResolvedValue(mockDeveloperResponse([sampleResult]));
 
diff --git a/src/commands/developer.ts b/src/commands/developer.ts
index 5fbc3a32b9..5d2f525e39 100644
--- a/src/commands/developer.ts
+++ b/src/commands/developer.ts
@@ -38,6 +38,10 @@ function fmtLicense(license: DeveloperLicense | string): string {
   return `License: ${license.state.replace('_', ' ')}`;
 }
 
+function idEncodesUrl(id: string | undefined, url: string): boolean {
+  return id === url || id?.endsWith(`:${url}`) === true;
+}
+
 function fmtResult(item: DeveloperItem): string {
   // The wire carries no type field; the artifact kind is the id prefix
   // (doc:, issue:, pull_request:, readme:).
@@ -46,7 +50,7 @@ function fmtResult(item: DeveloperItem): string {
     ? ` (${prefix})`
     : '';
   const lines = [`## [${item.id ?? '?'}]${kind} ${item.title ?? '(untitled)'}`];
-  if (item.url) lines.push(item.url);
+  if (item.url && !idEncodesUrl(item.id, item.url)) lines.push(item.url);
   if (item.license) lines.push(fmtLicense(item.license));
   const body = (item.passages ?? [])
     .map((passage) =>
@@ -57,6 +61,7 @@ function fmtResult(item: DeveloperItem): string {
         .filter(Boolean)
         .join('\n')
     )
+    .filter((passage) => passage.trim().length > 0)
     .join('\n---\n')
     .trim();
   lines.push(body || '(no content)');