diff --git a/internal/cloud/code-agent-agentrun-adapter.ts b/internal/cloud/code-agent-agentrun-adapter.ts
index 2b15661c..32f779a0 100644
--- a/internal/cloud/code-agent-agentrun-adapter.ts
+++ b/internal/cloud/code-agent-agentrun-adapter.ts
@@ -1004,7 +1004,6 @@ function newSessionIdAfterEviction(baseSessionId, traceId) {
 
 function buildAgentRunCreateRunInput({ params, env, traceId, backendProfile, sessionId, toolCapabilities = null }) {
   const commitId = requireAgentRunSourceCommit(env);
-  const runtimeAuthority = requireAgentRunRuntimeAuthority(env);
   const threadId = safeOpaqueId(params.threadId);
   const hwlabProjectId = firstNonEmpty(params.projectId);
   rejectRemovedResourceWorkspaceFiles(params.workspaceFiles ?? params.resourceWorkspaceFiles);
@@ -1022,11 +1021,7 @@ function buildAgentRunCreateRunInput({ params, env, traceId, backendProfile, ses
     projectId: agentRunProjectIdForEnv(env),
     workspaceRef: {
       kind: "opaque",
-      repo: DEFAULT_PROJECT_ID,
-      branch: firstNonEmpty(env.HWLAB_BOOT_REF, env.HWLAB_CODE_AGENT_AGENTRUN_BRANCH, defaultAgentRunBranchForRuntimeLane(runtimeAuthority.lane), "v0.2"),
-      runtimeNamespace: runtimeAuthority.namespace,
-      hwlabTraceId: traceId,
-      valuesPrinted: false
+      path: "."
     },
     sessionRef: {
       sessionId: sessionId ?? scopedAgentRunSessionIdForParams(params, traceId),
@@ -1349,12 +1344,6 @@ function namespaceForAgentRunRuntimeLane(lane) {
   return null;
 }
 
-function defaultAgentRunBranchForRuntimeLane(lane) {
-  const match = String(lane ?? "").match(/^v(\d+)$/u);
-  if (!match) return null;
-  return `v0.${Number.parseInt(match[1], 10)}`;
-}
-
 function agentRunRuntimeAuthorityError(code, message) {
   return Object.assign(new Error(message), {
     code,
diff --git a/internal/cloud/code-agent-agentrun-durable-admission.test.ts b/internal/cloud/code-agent-agentrun-durable-admission.test.ts
index 4fb1b7a3..fb4bfb6e 100644
--- a/internal/cloud/code-agent-agentrun-durable-admission.test.ts
+++ b/internal/cloud/code-agent-agentrun-durable-admission.test.ts
@@ -54,6 +54,9 @@ test("fresh gpt.pika turn returns running only after durable dispatch intent is
   assert.equal(result.agentRun.durableDispatch, true);
   assert.equal(result.agentRun.status, "dispatch-intent-pending");
 
+  const runCall = calls.find((call) => call.path === "/api/v1/runs");
+  assert.ok(runCall);
+  assert.deepEqual(runCall.body.workspaceRef, { kind: "opaque", path: "." });
   const commandCall = calls.find((call) => call.path.endsWith("/commands"));
   assert.ok(commandCall);
   assert.equal(commandCall.body.idempotencyKey, traceId);
diff --git a/internal/cloud/server-agent-chat.test.ts b/internal/cloud/server-agent-chat.test.ts
index e95197df..5167a892 100644
--- a/internal/cloud/server-agent-chat.test.ts
+++ b/internal/cloud/server-agent-chat.test.ts
@@ -647,8 +647,7 @@ test("cloud api /v1/agent/chat delegates v0.3 turns to AgentRun v0.1 over adapte
       assert.equal(body.tenantId, "hwlab");
       assert.equal(body.projectId, "pikasTech/HWLAB");
       assert.equal(body.backendProfile, "deepseek");
-      assert.equal(body.workspaceRef.branch, "v0.3");
-      assert.equal(body.workspaceRef.runtimeNamespace, "hwlab-v03");
+      assert.deepEqual(body.workspaceRef, { kind: "opaque", path: "." });
       assert.equal(body.resourceBundleRef.repoUrl, "http://git-mirror-http.devops-infra.svc.cluster.local/pikasTech/HWLAB.git");
       assert.equal(body.resourceBundleRef.commitId, "0123456789abcdef0123456789abcdef01234567");
       assert.equal(body.resourceBundleRef.kind, "gitbundle");