diff --git a/internal/acp/execution.go b/internal/acp/execution.go
index a80e096..a250d6b 100644
--- a/internal/acp/execution.go
+++ b/internal/acp/execution.go
@@ -168,6 +168,37 @@ func (s *Server) runSingleAgentViaExternalProvider(
 	return enrichSingleAgentResultArtifacts(collector.apply(result), forwardParams), nil
 }
 
+func (s *Server) probeExternalProvider(
+	ctx context.Context,
+	provider syncedProvider,
+	params map[string]any,
+) (map[string]any, error) {
+	endpoint := resolveSingleAgentForwardEndpoint(provider)
+	if endpoint == "" {
+		return nil, fmt.Errorf("external provider endpoint is missing")
+	}
+	authorization := firstNonEmptyString(
+		strings.TrimSpace(provider.AuthorizationHeader),
+		strings.TrimSpace(shared.StringArg(params, inboundAuthorizationHeaderKey, "")),
+	)
+	response, err := requestExternalACP(
+		ctx,
+		endpoint,
+		authorization,
+		"acp.capabilities",
+		map[string]any{},
+		nil,
+	)
+	if err != nil {
+		return nil, err
+	}
+	result := asMap(response["result"])
+	if len(result) == 0 {
+		return nil, fmt.Errorf("external provider probe missing result payload")
+	}
+	return result, nil
+}
+
 func resolveSingleAgentForwardEndpoint(provider syncedProvider) string {
 	return strings.TrimSpace(provider.Endpoint)
 }
diff --git a/internal/acp/providers_sync_test.go b/internal/acp/providers_sync_test.go
index 8ef83f6..240f115 100644
--- a/internal/acp/providers_sync_test.go
+++ b/internal/acp/providers_sync_test.go
@@ -7,6 +7,7 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"reflect"
 	"strings"
 	"testing"
 
@@ -312,6 +313,64 @@ func TestExecuteSessionTaskUsesBridgeAuthTokenFallbackForBuiltInProvider(t *test
 	}
 }
 
+func TestHandleRequestProviderProbeUsesBridgeForwardingPath(t *testing.T) {
+	externalServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("Authorization"); got != "Bearer probe-token" {
+			t.Fatalf("expected probe bearer auth header, got %q", got)
+		}
+		defer func() {
+			_ = r.Body.Close()
+		}()
+		var request map[string]any
+		if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
+			t.Fatalf("decode request: %v", err)
+		}
+		if got := request["method"]; got != "acp.capabilities" {
+			t.Fatalf("expected bridge probe to forward acp.capabilities, got %#v", request)
+		}
+		_ = json.NewEncoder(w).Encode(map[string]any{
+			"jsonrpc": "2.0",
+			"id":      request["id"],
+			"result": map[string]any{
+				"providers": []string{"codex"},
+			},
+		})
+	}))
+	defer externalServer.Close()
+
+	server := NewServer()
+	setTestBridgeProvider(server, syncedProvider{
+		ProviderID:          "codex",
+		Label:               "Codex",
+		Endpoint:            externalServer.URL,
+		AuthorizationHeader: "Bearer probe-token",
+		Enabled:             true,
+	})
+
+	response, rpcErr := server.handleRequest(shared.RPCRequest{
+		Method: "xworkmate.provider.probe",
+		Params: map[string]any{
+			"providerId": "codex",
+		},
+	}, func(map[string]any) {})
+	if rpcErr != nil {
+		t.Fatalf("expected success, got rpc error: %v", rpcErr)
+	}
+	if got := response["success"]; got != true {
+		t.Fatalf("expected provider probe success, got %#v", response)
+	}
+	if got := response["providerId"]; got != "codex" {
+		t.Fatalf("expected providerId codex, got %#v", response)
+	}
+	capabilities, ok := response["capabilities"].(map[string]any)
+	if !ok {
+		t.Fatalf("expected capabilities payload, got %#v", response)
+	}
+	if got := capabilities["providers"]; !reflect.DeepEqual(got, []any{"codex"}) {
+		t.Fatalf("expected provider list in capabilities, got %#v", capabilities)
+	}
+}
+
 func TestExecuteSessionTaskEnrichesExternalProviderResultWithArtifactsAndRemoteMetadata(t *testing.T) {
 	workingDir := t.TempDir()
 	if err := os.MkdirAll(filepath.Join(workingDir, "outputs"), 0o755); err != nil {
diff --git a/internal/acp/server.go b/internal/acp/server.go
index 06e6b55..1c50a7c 100644
--- a/internal/acp/server.go
+++ b/internal/acp/server.go
@@ -396,6 +396,36 @@ func (s *Server) handleRequest(
 			s.availableProviders(),
 		)
 		return mergeRoutingResponse(map[string]any{"ok": true}, result), nil
+	case "xworkmate.provider.probe":
+		providerID := strings.TrimSpace(shared.StringArg(request.Params, "providerId", ""))
+		if providerID == "" {
+			return nil, &shared.RPCError{
+				Code:    -32602,
+				Message: "providerId is required",
+			}
+		}
+		provider, ok := s.syncedProviderByID(providerID)
+		if !ok {
+			return map[string]any{
+				"success":    false,
+				"providerId": providerID,
+				"error":      "provider is not advertised by the bridge",
+			}, nil
+		}
+		result, err := s.probeExternalProvider(context.Background(), provider, request.Params)
+		if err != nil {
+			return map[string]any{
+				"success":    false,
+				"providerId": providerID,
+				"error":      err.Error(),
+			}, nil
+		}
+		return map[string]any{
+			"success":      true,
+			"providerId":   providerID,
+			"probeMethod":  "acp.capabilities",
+			"capabilities": result,
+		}, nil
 	case "xworkmate.mounts.reconcile":
 		return handleMountReconcile(request.Params), nil
 	case "xworkmate.gateway.connect":
diff --git a/scripts/github-actions/test-validate-deploy.sh b/scripts/github-actions/test-validate-deploy.sh
index 0c6e2cf..4121580 100644
--- a/scripts/github-actions/test-validate-deploy.sh
+++ b/scripts/github-actions/test-validate-deploy.sh
@@ -139,7 +139,20 @@ case "${scenario}" in
         printf '{"jsonrpc":"2.0","result":{"providers":["ok"]}}\n'
         ;;
       https://xworkmate-bridge.svc.plus/acp/rpc)
-        printf '{"jsonrpc":"2.0","result":{"success":true,"output":"pong"}}\n'
+        if [[ "${data}" == *'"providerId":"codex"'* ]]; then
+          printf '{"jsonrpc":"2.0","result":{"success":true,"providerId":"codex","capabilities":{"providers":["codex"]}}}\n'
+          exit 0
+        fi
+        if [[ "${data}" == *'"providerId":"opencode"'* ]]; then
+          printf '{"jsonrpc":"2.0","result":{"success":true,"providerId":"opencode","capabilities":{"providers":["opencode"]}}}\n'
+          exit 0
+        fi
+        if [[ "${data}" == *'"providerId":"gemini"'* ]]; then
+          printf '{"jsonrpc":"2.0","result":{"success":true,"providerId":"gemini","capabilities":{"providers":["gemini"]}}}\n'
+          exit 0
+        fi
+        printf 'unexpected bridge probe payload in retry-success scenario: %s\n' "${data}" >&2
+        exit 1
         ;;
       *)
         printf 'unexpected url in retry-success scenario: %s\n' "${url}" >&2
diff --git a/scripts/github-actions/validate-deploy.sh b/scripts/github-actions/validate-deploy.sh
index 8325fdd..cd8c034 100644
--- a/scripts/github-actions/validate-deploy.sh
+++ b/scripts/github-actions/validate-deploy.sh
@@ -5,7 +5,7 @@ IMAGE_REF="${1:?image_ref is required}"
 RETRYABLE_TRANSPORT=10
 RETRYABLE_NOT_READY=11
 FAST_HTTP_TIMEOUT_SECONDS=20
-BRIDGE_RPC_TIMEOUT_SECONDS=330
+BRIDGE_RPC_TIMEOUT_SECONDS=60
 
 normalize_url() {
   local value="$1"
@@ -215,15 +215,13 @@ jsonrpc_bridge_call() {
   printf '%s\n' "${response}"
 }
 
-probe_bridge_single_agent_smoke_once() {
+probe_bridge_provider_probe_once() {
   local provider_id="$1"
-  local request_id="smoke-${provider_id}-$(date +%s)"
-  local session_id="validate-${provider_id}-$(date +%s)"
   local payload
   local response
 
   payload="$(cat <<JSON
-{"jsonrpc":"2.0","id":"${request_id}","method":"session.start","params":{"sessionId":"${session_id}","threadId":"${session_id}","taskPrompt":"Reply with exactly pong","routing":{"routingMode":"explicit","explicitExecutionTarget":"singleAgent","explicitProviderId":"${provider_id}"}}}
+{"jsonrpc":"2.0","id":"probe-${provider_id}-$(date +%s)","method":"xworkmate.provider.probe","params":{"providerId":"${provider_id}"}}
 JSON
 )"
 
@@ -247,32 +245,19 @@ except json.JSONDecodeError as exc:
 if payload.get("jsonrpc") != "2.0":
     raise SystemExit(f"{provider}: missing jsonrpc envelope")
 
-if payload.get("error"):
-    raise SystemExit(f"{provider}: rpc error {payload['error']}")
-
 result = payload.get("result")
 if not isinstance(result, dict):
     raise SystemExit(f"{provider}: missing result payload")
 
 if result.get("success") is not True:
-    raise SystemExit(f"{provider}: success flag was not true: {result!r}")
+    raise SystemExit(f"{provider}: provider probe failed: {result!r}")
 
-def first_text_candidate(data):
-    for key in ("output", "resultSummary", "summary", "message"):
-        value = data.get(key)
-        if isinstance(value, str) and value.strip():
-            return value
-    return ""
+if result.get("providerId") != provider:
+    raise SystemExit(f"{provider}: providerId mismatch: {result!r}")
 
-def normalize_text(value):
-    normalized = value.strip().strip("`").strip()
-    if len(normalized) >= 2 and normalized[0] == normalized[-1] and normalized[0] in {'"', "'"}:
-        normalized = normalized[1:-1].strip()
-    return normalized.lower()
-
-text = first_text_candidate(result)
-if normalize_text(text) != "pong":
-    raise SystemExit(f"{provider}: expected normalized pong output, got {text!r} from {result!r}")
+capabilities = result.get("capabilities")
+if not isinstance(capabilities, dict):
+    raise SystemExit(f"{provider}: probe did not return capabilities payload: {result!r}")
 PY
 }
 
@@ -376,6 +361,6 @@ probe_safe_http_endpoint "${OPENCLAW_HTTP_PROBE_URL}"
 run_with_retry "capabilities ${CODEX_RPC_URL}" 3 5 "${RETRYABLE_TRANSPORT}" probe_jsonrpc_capabilities_once "${CODEX_RPC_URL}"
 run_with_retry "capabilities ${OPENCODE_RPC_URL}" 3 5 "${RETRYABLE_TRANSPORT}" probe_jsonrpc_capabilities_once "${OPENCODE_RPC_URL}"
 run_with_retry "capabilities ${GEMINI_RPC_URL}" 3 5 "${RETRYABLE_TRANSPORT}" probe_jsonrpc_capabilities_once "${GEMINI_RPC_URL}"
-run_with_retry "bridge single-agent smoke codex" 3 10 "${RETRYABLE_TRANSPORT}" probe_bridge_single_agent_smoke_once "codex"
-run_with_retry "bridge single-agent smoke opencode" 3 10 "${RETRYABLE_TRANSPORT}" probe_bridge_single_agent_smoke_once "opencode"
-run_with_retry "bridge single-agent smoke gemini" 3 10 "${RETRYABLE_TRANSPORT}" probe_bridge_single_agent_smoke_once "gemini"
+run_with_retry "bridge provider probe codex" 3 10 "${RETRYABLE_TRANSPORT}" probe_bridge_provider_probe_once "codex"
+run_with_retry "bridge provider probe opencode" 3 10 "${RETRYABLE_TRANSPORT}" probe_bridge_provider_probe_once "opencode"
+run_with_retry "bridge provider probe gemini" 3 10 "${RETRYABLE_TRANSPORT}" probe_bridge_provider_probe_once "gemini"