1 files changed, 46 insertions, 0 deletions
diff --git a/packages/core/test/effect/observability.test.ts b/packages/core/test/effect/observability.test.ts
new file mode 100644
index 000000000..50ea23f89
--- /dev/null
+++ b/packages/core/test/effect/observability.test.ts
@@ -0,0 +1,46 @@
+import { afterEach, describe, expect, test } from "bun:test"
+import { resource } from "@opencode-ai/core/effect/observability"
+
+const otelResourceAttributes = process.env.OTEL_RESOURCE_ATTRIBUTES
+const opencodeClient = process.env.OPENCODE_CLIENT
+
+afterEach(() => {
+  if (otelResourceAttributes === undefined) delete process.env.OTEL_RESOURCE_ATTRIBUTES
+  else process.env.OTEL_RESOURCE_ATTRIBUTES = otelResourceAttributes
+
+  if (opencodeClient === undefined) delete process.env.OPENCODE_CLIENT
+  else process.env.OPENCODE_CLIENT = opencodeClient
+})
+
+describe("resource", () => {
+  test("parses and decodes OTEL resource attributes", () => {
+    process.env.OTEL_RESOURCE_ATTRIBUTES =
+      "service.namespace=anomalyco,team=platform%2Cobservability,label=hello%3Dworld,key%2Fname=value%20here"
+
+    expect(resource().attributes).toMatchObject({
+      "service.namespace": "anomalyco",
+      team: "platform,observability",
+      label: "hello=world",
+      "key/name": "value here",
+    })
+  })
+
+  test("drops OTEL resource attributes when any entry is invalid", () => {
+    process.env.OTEL_RESOURCE_ATTRIBUTES = "service.namespace=anomalyco,broken"
+
+    expect(resource().attributes["service.namespace"]).toBeUndefined()
+    expect(resource().attributes["opencode.client"]).toBeDefined()
+  })
+
+  test("keeps built-in attributes when env values conflict", () => {
+    process.env.OPENCODE_CLIENT = "cli"
+    process.env.OTEL_RESOURCE_ATTRIBUTES =
+      "opencode.client=web,service.instance.id=override,service.namespace=anomalyco"
+
+    expect(resource().attributes).toMatchObject({
+      "opencode.client": "cli",
+      "service.namespace": "anomalyco",
+    })
+    expect(resource().attributes["service.instance.id"]).not.toBe("override")
+  })
+})