diff --git a/railiance_fabric/graph_explorer.py b/railiance_fabric/graph_explorer.py
index f18c985..c5e6e31 100644
--- a/railiance_fabric/graph_explorer.py
+++ b/railiance_fabric/graph_explorer.py
@@ -238,6 +238,13 @@ def fabric_graph_explorer_payload(
 
     elements: list[dict[str, Any]] = []
     repository_index = {str(repo.get("slug", "")): repo for repo in repositories}
+    source_repository_node_ids = {
+        str(node.get("id", "")): f"repo:{str(node.get('repo', '')).strip()}"
+        for node in source_nodes
+        if str(node.get("kind", "")) == "Repository"
+        and str(node.get("id", ""))
+        and str(node.get("repo", "")).strip()
+    }
     for slug in sorted(repo_slugs):
         repo = repository_index.get(slug, {})
         has_snapshot = slug in snapshot_repo_slugs or slug in source_repo_slugs
@@ -281,6 +288,8 @@ def fabric_graph_explorer_payload(
         if not node_id:
             continue
         kind = str(node.get("kind", ""))
+        if kind == "Repository":
+            continue
         layer = _layer_for_kind(kind)
         is_unresolved = node_id in unresolved
         attributes = node.get("attributes") if isinstance(node.get("attributes"), dict) else {}
@@ -342,8 +351,8 @@ def fabric_graph_explorer_payload(
     )
 
     for edge in source_edges:
-        source = str(edge.get("from", ""))
-        target = str(edge.get("to", ""))
+        source = source_repository_node_ids.get(str(edge.get("from", "")), str(edge.get("from", "")))
+        target = source_repository_node_ids.get(str(edge.get("to", "")), str(edge.get("to", "")))
         edge_type = str(edge.get("type", ""))
         if not source or not target:
             continue
@@ -354,6 +363,8 @@ def fabric_graph_explorer_payload(
         repo_id = f"repo:{slug}"
         for node in source_nodes:
             node_id = str(node.get("id", ""))
+            if str(node.get("kind", "")) == "Repository":
+                continue
             if str(node.get("repo", "")) != slug or not node_id:
                 continue
             elements.append(_edge_element(edge_index, repo_id, node_id, "declares", node_layers, node_repos))
diff --git a/tests/test_graph_explorer.py b/tests/test_graph_explorer.py
index 11b08c2..f1ad411 100644
--- a/tests/test_graph_explorer.py
+++ b/tests/test_graph_explorer.py
@@ -72,6 +72,57 @@ def test_graph_explorer_manifest_and_payload_validate() -> None:
     assert "removed nodes are removed" in payload["filter"]["connected_edge_behavior"]
 
 
+def test_graph_explorer_collapses_discovered_repository_nodes() -> None:
+    graph = {
+        "apiVersion": "railiance.fabric/v1alpha1",
+        "kind": "FabricGraphExport",
+        "generated_at": "2026-05-21T00:00:00Z",
+        "source": {"repo": "fixture-repo", "commit": "abc123"},
+        "nodes": [
+            {
+                "id": "discovery:fixture-repo:repository:fixture-repo",
+                "kind": "Repository",
+                "name": "Fixture Repo",
+                "repo": "fixture-repo",
+                "domain": "testing",
+                "lifecycle": "active",
+                "attributes": {"discovery_origin": "deterministic"},
+            },
+            {
+                "id": "discovery:fixture-repo:library:fixture-service",
+                "kind": "Library",
+                "name": "fixture-service",
+                "repo": "fixture-repo",
+                "domain": "testing",
+                "lifecycle": "active",
+                "attributes": {"language": "python"},
+            },
+        ],
+        "edges": [
+            {
+                "from": "discovery:fixture-repo:repository:fixture-repo",
+                "to": "discovery:fixture-repo:library:fixture-service",
+                "type": "declares_package",
+            }
+        ],
+    }
+
+    payload = fabric_graph_explorer_payload(
+        graph,
+        [{"slug": "fixture-repo", "name": "Fixture Repo"}],
+        {"fixture-repo"},
+    )
+
+    nodes = [element for element in payload["elements"] if "source" not in element["data"]]
+    edges = [element for element in payload["elements"] if "source" in element["data"]]
+    repository_nodes = [node for node in nodes if node["data"]["kind"] == "Repository"]
+    declares_package = next(edge for edge in edges if edge["data"]["edgeType"] == "declares_package")
+
+    assert [node["data"]["id"] for node in repository_nodes] == ["repo:fixture-repo"]
+    assert declares_package["data"]["source"] == "repo:fixture-repo"
+    assert declares_package["data"]["target"] == "discovery:fixture-repo:library:fixture-service"
+
+
 def test_cli_exports_graph_explorer_payload(capsys) -> None:
     assert cli_main(["export", "--format", "graph-explorer"]) == 0
     payload = json.loads(capsys.readouterr().out)
diff --git a/workplans/ADHOC-2026-05-21.md b/workplans/ADHOC-2026-05-21.md
new file mode 100644
index 0000000..e2d5caa
--- /dev/null
+++ b/workplans/ADHOC-2026-05-21.md
@@ -0,0 +1,39 @@
+---
+id: ADHOC-2026-05-21
+type: workplan
+title: "Ad Hoc Fixes 2026-05-21"
+domain: railiance
+repo: railiance-fabric
+status: finished
+owner: codex
+topic_slug: railiance
+created: "2026-05-21"
+updated: "2026-05-21"
+state_hub_workstream_id: "c5126722-3b6c-4a6a-b687-bc2ebfce5d58"
+---
+
+# ADHOC-2026-05-21 - Ad Hoc Fixes
+
+## Collapse Duplicate Repository Icons
+
+```task
+id: ADHOC-2026-05-21-T01
+status: done
+priority: medium
+state_hub_task_id: "8af02b06-b9a4-457a-bbdc-fa97543944a4"
+```
+
+After projecting all discovery candidates into the local registry graph, the
+graph explorer rendered each repository twice: once as the canonical registry
+repository node and once as the discovered `Repository` candidate node.
+
+The graph explorer now collapses discovered `Repository` nodes into the
+canonical `repo:<slug>` node and rewires source graph edges to that canonical
+node, preserving relationships without duplicate repo icons.
+
+Verification:
+
+- `python3 -m pytest tests/test_graph_explorer.py -q` passed.
+- `python3 -m pytest` passed with 34 tests.
+- Restarted the local registry and confirmed the graph explorer export now has
+  35 repository nodes instead of 69.