diff --git a/feat/dependencies-of/compute.ts b/feat/dependencies-of/compute.ts
index 4da0ea5..63d73b1 100644
--- a/feat/dependencies-of/compute.ts
+++ b/feat/dependencies-of/compute.ts
@@ -1,4 +1,4 @@
-import { ModuleGraphJson, SubProcess, trace } from "../../deps.ts";
+import { context, ModuleGraphJson, SubProcess, trace } from "../../deps.ts";
 import { computeDependencies } from "../../lib/module-map.ts";
 
 const tracer = trace.getTracer('dependencies-of-compute');
@@ -32,8 +32,15 @@ export async function computeGraph(
 }
 
 export async function renderGraph(modUrl: string, dotArgs: string[], args: URLSearchParams) {
-  return tracer.startActiveSpan('Compute + Render Graph', span =>
-    renderGraphInner(modUrl, dotArgs, args).finally(() => span.end()));
+  return tracer.startActiveSpan('Compute + Render Graph', {
+    attributes: {
+      'render.mod_url': modUrl,
+      'render.dot_args': dotArgs,
+      'render.params': args.toString(),
+    },
+  }, context.active(), span =>
+    renderGraphInner(modUrl, dotArgs, args).finally(() =>
+      span.end()));
 }
 async function renderGraphInner(modUrl: string, dotArgs: string[], args: URLSearchParams) {
   const dotText = await computeGraph(modUrl, args, 'dot');