diff --git a/.github/workflows/agent-ci-probe.yml b/.github/workflows/agent-ci-probe.yml
new file mode 100644
index 0000000..bbd326e
--- /dev/null
+++ b/.github/workflows/agent-ci-probe.yml
@@ -0,0 +1,48 @@
+name: Agent CI probe
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/agent-ci-probe.yml
+      - wikify/agent_ci_probe.py
+
+permissions:
+  contents: read
+
+jobs:
+  probe:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    env:
+      CLAUDE_CODE_OAUTH_TOKEN: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
+    services:
+      redis-cache:
+        image: redis:alpine
+        ports:
+          - 13000:6379
+      redis-queue:
+        image: redis:alpine
+        ports:
+          - 11000:6379
+      mariadb:
+        image: mariadb:11.8
+        env:
+          MYSQL_ROOT_PASSWORD: root
+        ports:
+          - 3306:3306
+        options: --health-cmd="mariadb-admin ping" --health-interval=5s --health-timeout=2s --health-retries=3
+    steps:
+      - uses: actions/checkout@v7
+      - uses: ./.github/actions/e2e-site
+      - name: Direct turn
+        shell: bash
+        working-directory: /home/runner/frappe-bench
+        run: bench --site wikify.localhost execute wikify.agent_ci_probe.direct
+      - name: Worker turn
+        if: always()
+        shell: bash
+        working-directory: /home/runner/frappe-bench
+        run: |
+          bench --site wikify.localhost execute wikify.agent_ci_probe.worker
+          echo "----- worker log tail"
+          tail -n 80 logs/e2e-worker.log
diff --git a/wikify/agent_ci_probe.py b/wikify/agent_ci_probe.py
new file mode 100644
index 0000000..2f651ff
--- /dev/null
+++ b/wikify/agent_ci_probe.py
@@ -0,0 +1,68 @@
+import os
+import shutil
+import time
+
+import frappe
+
+from wikify.agent import session
+from wikify.agent.loop import AgentRunner
+from wikify.engine import claude_cli
+
+
+def environment():
+	print("which claude:", shutil.which("claude"), "| HOME:", os.environ.get("HOME"))
+	print("token set:", bool(os.environ.get("CLAUDE_CODE_OAUTH_TOKEN")), "| is_enabled:", claude_cli.is_enabled())
+	try:
+		print("plain run:", claude_cli.run([{"role": "user", "content": "Reply with exactly: ok"}])["result"])
+	except Exception as exception:
+		print("plain run FAILED:", repr(exception))
+
+
+def start_turn():
+	sess = session.get_or_create(None, user="Administrator", scope="global")
+	session.append_message(sess.name, "user", "List my projects", status="done", attachments=[])
+	session.set_running(sess.name, True)
+	frappe.db.commit()
+	return sess.name
+
+
+def report(session_id, started):
+	print("turn took", round(time.time() - started, 1), "s")
+	for row in frappe.get_all(
+		"Wikify Agent Message",
+		filters={"session": session_id},
+		fields=["role", "status", "content", "tool_name"],
+		order_by="creation asc",
+	):
+		print(f"  {row.role:9} {row.status or '':9} {row.tool_name or '':12} {(row.content or '')[:160]!r}")
+	for error in frappe.get_all(
+		"Error Log", filters={"method": "Wikify agent run failed"}, fields=["error"], order_by="creation desc"
+	):
+		print(error.error[-3000:])
+
+
+def direct():
+	frappe.set_user("Administrator")
+	environment()
+	session_id = start_turn()
+	started = time.time()
+	AgentRunner(session_id, "Administrator", attachments=[]).run()
+	report(session_id, started)
+
+
+def worker():
+	frappe.set_user("Administrator")
+	frappe.db.delete("Error Log", {"method": "Wikify agent run failed"})
+	frappe.enqueue("wikify.agent_ci_probe.environment", queue="long")
+	session_id = start_turn()
+	started = time.time()
+	frappe.enqueue(
+		"wikify.jobs.agent.run_agent_job", queue="long", session_id=session_id, user="Administrator"
+	)
+	frappe.db.commit()
+	while time.time() - started < 300:
+		time.sleep(5)
+		frappe.db.rollback()
+		if not frappe.db.get_value("Wikify Agent Session", session_id, "is_running"):
+			break
+	report(session_id, started)