feat(kanban): surface final_result for Done cards; show run summary when task.result is empty

plugins/kanban/dashboard/dist/index.js

@@ -3428,10 +3428,39 @@
         onAddChild: props.onAddChild,
         onRemoveChild: props.onRemoveChild,
       }),
-      t.result ? h("div", { className: "hermes-kanban-section" },
-        h("div", { className: "hermes-kanban-section-head" }, tx(i18n, "result", "Result")),
-        h(MarkdownBlock, { source: t.result, enabled: props.renderMarkdown }),
-      ) : null,
+      (function () {
+        var finalResult = t.final_result || t.result || t.latest_summary || null;
+        var isDone = t.status === "done";
+        var isParent = (t.link_counts && t.link_counts.children > 0);
+        if (finalResult) {
+          var label = t.result
+            ? tx(i18n, "result", "Result")
+            : tx(i18n, "finalResult", "Final Result (run summary)");
+          return h("div", { className: "hermes-kanban-section" },
+            h("div", { className: "hermes-kanban-section-head" }, label),
+            h(MarkdownBlock, { source: finalResult, enabled: props.renderMarkdown }),
+          );
+        }
+        if (isDone && isParent) {
+          return h("div", { className: "hermes-kanban-section" },
+            h("div", { className: "hermes-kanban-section-head" }, tx(i18n, "result", "Result")),
+            h("div", { className: "hermes-kanban-done-no-result hermes-kanban-done-parent-note" },
+              tx(i18n, "doneParentNote",
+                "This card is an orchestrator / parent task. The substantive results are in the child cards listed in Dependencies below."),
+            ),
+          );
+        }
+        if (isDone) {
+          return h("div", { className: "hermes-kanban-section" },
+            h("div", { className: "hermes-kanban-section-head" }, tx(i18n, "result", "Result")),
+            h("div", { className: "hermes-kanban-done-no-result" },
+              tx(i18n, "doneNoResult",
+                "No final result was recorded. Check Run History, Logs, or Child Tasks for the worker output."),
+            ),
+          );
+        }
+        return null;
+      })(),
       h(AttachmentsSection, {
         attachments: attachments,
         boardSlug: props.boardSlug,

plugins/kanban/dashboard/plugin_api.py

@@ -172,6 +172,7 @@ def _task_dict(
     # ``task_runs.summary`` (the kanban-worker pattern) instead of
     # ``tasks.result``. ``None`` when no run has produced a summary yet.
     d["latest_summary"] = latest_summary
+    d["final_result"] = task.result or latest_summary or None
     # Keep body short on list endpoints; full body comes from /tasks/:id.
     return d
 

tests/plugins/test_kanban_dashboard_plugin.py

@@ -2362,3 +2362,84 @@ def test_dashboard_failed_card_highlight_class_exists():
     assert "hermes-kanban-card--failed" in js
     assert "hermes-kanban-card--failed" in css
     assert "failedIds" in js
+
+# ---------------------------------------------------------------------------
+# Final result visibility for Done cards
+# ---------------------------------------------------------------------------
+
+
+def test_task_dict_final_result_uses_tasks_result_first(client):
+    """When tasks.result is set, final_result equals it (top priority)."""
+    r = client.post(
+        "/api/plugins/kanban/tasks",
+        json={"title": "Task with explicit result"},
+    )
+    task_id = r.json()["task"]["id"]
+    client.patch(
+        f"/api/plugins/kanban/tasks/{task_id}",
+        json={"status": "done", "result": "The final answer is 42.", "summary": "short handoff"},
+    )
+    r = client.get(f"/api/plugins/kanban/tasks/{task_id}")
+    assert r.status_code == 200
+    data = r.json()["task"]
+    assert data["result"] == "The final answer is 42."
+    assert data["final_result"] == "The final answer is 42."
+
+
+def test_task_dict_final_result_falls_back_to_latest_summary(client):
+    """When tasks.result is None but a run summary exists, final_result returns it."""
+    conn = kb.connect()
+    task_id = kb.create_task(conn, title="Task with only run summary")
+    kb.claim_task(conn, task_id)
+    kb.complete_task(conn, task_id, summary="Report written to /output/report.md")
+    conn.close()
+
+    r = client.get(f"/api/plugins/kanban/tasks/{task_id}")
+    assert r.status_code == 200
+    data = r.json()["task"]
+    assert data["status"] == "done"
+    assert not data["result"]
+    assert data["final_result"] == "Report written to /output/report.md"
+
+
+def test_task_dict_final_result_none_when_nothing_recorded(client):
+    """When neither tasks.result nor any run summary exists, final_result is None."""
+    r = client.post(
+        "/api/plugins/kanban/tasks",
+        json={"title": "Task with no result at all"},
+    )
+    task_id = r.json()["task"]["id"]
+    r = client.get(f"/api/plugins/kanban/tasks/{task_id}")
+    assert r.status_code == 200
+    assert r.json()["task"]["final_result"] is None
+
+
+def test_board_tasks_include_final_result_field(client):
+    """final_result must appear on board-level task cards too."""
+    conn = kb.connect()
+    task_id = kb.create_task(conn, title="Board card with summary only")
+    kb.claim_task(conn, task_id)
+    kb.complete_task(conn, task_id, summary="Done: see attachment")
+    conn.close()
+
+    r = client.get("/api/plugins/kanban/board")
+    assert r.status_code == 200
+    done_col = next(c for c in r.json()["columns"] if c["name"] == "done")
+    card = next((t for t in done_col["tasks"] if t["id"] == task_id), None)
+    assert card is not None
+    assert "Done: see attachment" in card["final_result"]
+
+
+def test_dashboard_done_final_result_section_rendered_from_summary():
+    """Frontend must render Final Result section from run summary when task.result is empty."""
+    repo_root = Path(__file__).resolve().parents[2]
+    dist = (repo_root / "plugins" / "kanban" / "dashboard" / "dist" / "index.js").read_text()
+    assert "final_result" in dist
+    assert "Final Result (run summary)" in dist
+    assert "No final result was recorded" in dist
+    assert "orchestrator" in dist or "parent task" in dist
+# ---------------------------------------------------------------------------
+# Final result visibility for Done cards
+# ---------------------------------------------------------------------------
+
+