diff --git a/scripts/src/hwlab-node-web-observe-runner-source.ts b/scripts/src/hwlab-node-web-observe-runner-source.ts
index 897366f4..273cf8a5 100644
--- a/scripts/src/hwlab-node-web-observe-runner-source.ts
+++ b/scripts/src/hwlab-node-web-observe-runner-source.ts
@@ -921,7 +921,56 @@ async function selectProvider(provider) {
     }
     await page.keyboard.press("Escape").catch(() => null);
   }
-  throw new Error("provider option not found: " + target + "; attempts=" + JSON.stringify(attempts.slice(-10)));
+  const providerCandidates = await collectProviderCandidates();
+  throw new Error("provider option not found: " + target + "; providerCandidates=" + JSON.stringify(providerCandidates.slice(0, 50)) + "; attempts=" + JSON.stringify(attempts.slice(-10)));
+}
+
+async function collectProviderCandidates() {
+  return page.evaluate(() => {
+    const rows = [];
+    const seen = new Set();
+    const visible = (element) => {
+      const rect = element.getBoundingClientRect();
+      const style = window.getComputedStyle(element);
+      return rect.width > 0 && rect.height > 0 && style.visibility !== "hidden" && style.display !== "none";
+    };
+    const push = (kind, element, value, text) => {
+      const normalizedValue = String(value || "").trim().slice(0, 160);
+      const normalizedText = String(text || "").replace(/\s+/gu, " ").trim().slice(0, 220);
+      const label = `${normalizedValue} ${normalizedText}`.trim();
+      if (!label) return;
+      const key = `${kind}:${label}`.toLowerCase();
+      if (seen.has(key)) return;
+      seen.add(key);
+      rows.push({ kind, value: normalizedValue, text: normalizedText, testId: String(element?.getAttribute?.("data-testid") || "").slice(0, 120), ariaLabel: String(element?.getAttribute?.("aria-label") || "").slice(0, 160) });
+    };
+    for (const select of Array.from(document.querySelectorAll("select")).filter(visible)) {
+      for (const option of Array.from(select.options || [])) push("select-option", select, option.value, option.textContent || "");
+    }
+    const selector = [
+      '[role="option"]',
+      '[role="menuitem"]',
+      '[data-radix-collection-item]',
+      '[data-testid*="provider" i]',
+      '[data-testid*="profile" i]',
+      '[data-testid*="model" i]',
+      '[aria-label*="provider" i]',
+      '[aria-label*="profile" i]',
+      '[aria-label*="model" i]',
+      '[aria-label*="模型"]',
+      '[aria-label*="提供"]',
+      'button'
+    ].join(", ");
+    for (const element of Array.from(document.querySelectorAll(selector)).filter(visible)) {
+      const text = String(element.textContent || "").replace(/\s+/gu, " ").trim();
+      const ariaLabel = String(element.getAttribute("aria-label") || "");
+      const testId = String(element.getAttribute("data-testid") || "");
+      const haystack = `${text} ${ariaLabel} ${testId}`;
+      if (!/provider|profile|model|模型|提供|codex|openai|deepseek|gpt|api|flash|spark|claude|gemini|moon/iu.test(haystack)) continue;
+      push("visible-control", element, element.getAttribute("value") || "", text || ariaLabel || testId);
+    }
+    return rows.slice(0, 80);
+  }).catch((error) => [{ kind: "candidate-scan-error", value: "", text: String(error?.message || error).slice(0, 240), testId: "", ariaLabel: "" }]);
 }
 
 async function clickSession(sessionId) {