diff --git a/.github/workflows/deploy-replicated.yml b/.github/workflows/deploy-replicated.yml
index 889d8a0b..0c909c2b 100644
--- a/.github/workflows/deploy-replicated.yml
+++ b/.github/workflows/deploy-replicated.yml
@@ -87,3 +87,10 @@ jobs:
             echo "| Admin console | https://admin.${INSTANCE}.staging.all-hands-testing.dev:30000 |"
             echo "| App | https://app.${INSTANCE}.staging.all-hands-testing.dev |"
           } >> "$GITHUB_STEP_SUMMARY"
+
+  e2e:
+    name: E2E Replicated
+    needs: deploy
+    uses: ./.github/workflows/e2e-replicated.yml
+    with:
+      instance: ${{ inputs.instance }}
diff --git a/.github/workflows/e2e-replicated.yml b/.github/workflows/e2e-replicated.yml
new file mode 100644
index 00000000..25e4bc5a
--- /dev/null
+++ b/.github/workflows/e2e-replicated.yml
@@ -0,0 +1,43 @@
+name: E2E Replicated
+
+on:
+  workflow_call:
+    inputs:
+      instance:
+        type: string
+        required: true
+
+permissions: {}
+
+jobs:
+  trigger-e2e:
+    environment: e2e-replicated
+    runs-on: ubuntu-24.04
+    timeout-minutes: 2
+    steps:
+      - name: Trigger Replicated E2E
+        shell: bash
+        env:
+          ARGO_TOKEN: ${{ secrets.ARGO_WORKFLOWS_E2E_TOKEN }}
+          INSTANCE: ${{ inputs.instance }}
+        run: |
+          # Argo answers an event that matches no binding with 200 {}, the same
+          # as a dispatched one, so a caller typo would otherwise pass silently.
+          case "$INSTANCE" in
+            unstable|beta|stable) ;;
+            *) echo "::error::unknown instance \"$INSTANCE\"" ; exit 1 ;;
+          esac
+
+          payload=$(jq -n \
+            --arg instance "$INSTANCE" \
+            '{
+              instance: $instance
+            }')
+          # Deliberately not retried: a second attempt whose first already landed
+          # starts a duplicate suite.
+          curl --fail-with-body --silent --show-error --max-time 20 \
+            --request POST \
+            --header "Authorization: Bearer ${ARGO_TOKEN}" \
+            --header "Content-Type: application/json" \
+            --data "$payload" \
+            https://workflows.dev.all-hands.dev/api/v1/events/openhands-e2e/replicated-deploy
diff --git a/.github/workflows/test-scripts.yml b/.github/workflows/test-scripts.yml
index e80c2267..f6803662 100644
--- a/.github/workflows/test-scripts.yml
+++ b/.github/workflows/test-scripts.yml
@@ -9,6 +9,8 @@ on:
       # not only when the test itself is edited.
       - 'charts/**'
       - 'replicated/**'
+      - '.github/workflows/deploy-replicated.yml'
+      - '.github/workflows/e2e-replicated.yml'
       - '.github/workflows/publish-release-charts.yml'
       - '.github/workflows/test-scripts.yml'
 
diff --git a/scripts/test_deploy_replicated_e2e_trigger.py b/scripts/test_deploy_replicated_e2e_trigger.py
new file mode 100644
index 00000000..aad857f6
--- /dev/null
+++ b/scripts/test_deploy_replicated_e2e_trigger.py
@@ -0,0 +1,89 @@
+from pathlib import Path
+
+import yaml
+
+
+ROOT = Path(__file__).resolve().parents[1]
+DEPLOY_WORKFLOW = ROOT / ".github/workflows/deploy-replicated.yml"
+E2E_WORKFLOW = ROOT / ".github/workflows/e2e-replicated.yml"
+TEST_WORKFLOW = ROOT / ".github/workflows/test-scripts.yml"
+
+
+def load_workflow(path: Path):
+    return yaml.safe_load(path.read_text(encoding="utf-8"))
+
+
+def trigger_step():
+    job = load_workflow(E2E_WORKFLOW)["jobs"]["trigger-e2e"]
+    return next(
+        step for step in job["steps"] if step.get("name") == "Trigger Replicated E2E"
+    )
+
+
+def test_e2e_workflow_can_only_be_called_by_another_workflow():
+    workflow = load_workflow(E2E_WORKFLOW)
+    triggers = workflow[True]
+
+    assert set(triggers) == {"workflow_call"}
+    assert triggers["workflow_call"] == {
+        "inputs": {
+            "instance": {"required": True, "type": "string"},
+        }
+    }
+
+
+def test_e2e_workflow_uses_its_environment_token_and_argo_owned_target():
+    workflow = load_workflow(E2E_WORKFLOW)
+    job = workflow["jobs"]["trigger-e2e"]
+    assert job["environment"] == "e2e-replicated"
+
+    trigger = next(
+        step for step in job["steps"] if step.get("name") == "Trigger Replicated E2E"
+    )
+    assert trigger["env"] == {
+        "ARGO_TOKEN": "${{ secrets.ARGO_WORKFLOWS_E2E_TOKEN }}",
+        "INSTANCE": "${{ inputs.instance }}",
+    }
+
+    command = trigger["run"]
+    assert "jq -n" in command
+    assert "instance: $instance" in command
+    assert "run_url" not in command
+    assert "target-url" not in command
+    assert "test_revision" not in command
+    assert "all-hands-testing.dev" not in command
+    assert "curl --fail-with-body" in command
+    assert (
+        "https://workflows.dev.all-hands.dev/api/v1/events/"
+        "openhands-e2e/replicated-deploy" in command
+    )
+    assert 'Authorization: Bearer ${ARGO_TOKEN}' in command
+
+
+def test_e2e_workflow_rejects_an_instance_no_binding_serves():
+    """A caller typo would otherwise dispatch, match nothing, and pass."""
+    command = trigger_step()["run"]
+    assert "unstable|beta|stable" in command
+
+
+def test_e2e_workflow_never_retries_the_dispatch():
+    """A retry whose first attempt already landed starts a second suite."""
+    assert "--retry" not in trigger_step()["run"]
+
+
+def test_deploy_replicated_calls_e2e_only_after_a_successful_deploy():
+    workflow = load_workflow(DEPLOY_WORKFLOW)
+    e2e = workflow["jobs"]["e2e"]
+
+    assert e2e == {
+        "name": "E2E Replicated",
+        "needs": "deploy",
+        "uses": "./.github/workflows/e2e-replicated.yml",
+        "with": {"instance": "${{ inputs.instance }}"},
+    }
+
+
+def test_workflow_contract_runs_when_either_workflow_changes():
+    text = TEST_WORKFLOW.read_text(encoding="utf-8")
+    assert "- '.github/workflows/deploy-replicated.yml'" in text
+    assert "- '.github/workflows/e2e-replicated.yml'" in text