diff --git a/open-sse/executors/codebuddy-cn.js b/open-sse/executors/codebuddy-cn.js
index 5f37d015..76ec52ff 100644
--- a/open-sse/executors/codebuddy-cn.js
+++ b/open-sse/executors/codebuddy-cn.js
@@ -18,6 +18,35 @@ export class CodeBuddyExecutor extends DefaultExecutor {
     const transformed = super.transformRequest(model, body, stream, credentials);
     transformed.stream = true;
 
+    // Tencent's content filter flags CLI agent system prompts ("You are Claude
+    // Code, Anthropic's official CLI...") as prompt injection / sensitive content
+    // and rejects the whole request. Detect agent system prompts (length catch-all
+    // + identity-marker regex) and replace them with a neutral one, while leaving
+    // legitimate user system prompts untouched. content may be a string or typed
+    // blocks ([{type:"text",text}]) depending on the incoming client format, so
+    // flatten before matching and preserve the original shape on replacement.
+    const NEUTRAL_PROMPT = "You are a helpful AI assistant that helps with software engineering tasks.";
+    const AGENT_PATTERN = /you are claude code|claude.?code.+official.+cli|anthropic.+official.+cli|anxthxropic.+official.+cli|you are (?:cursor|windsurf|cline|aider|continue|copilot|cody)|you are an? (?:ai )?(?:coding |code )?agent|cc_entrypoint\s*=\s*(?:cli|vscode|jetbrains|gui)|claude.?code.+issues|give feedback.+claude.?code|you are .{0,30}(?:powerful )?ai agent|orchestration capabilities|OhMyOpenCode|<agent-identity>|<Role>|<Behavior_Instructions>/i;
+    const flatten = (content) =>
+      typeof content === "string"
+        ? content
+        : Array.isArray(content)
+          ? content.map((b) => (b && typeof b.text === "string" ? b.text : "")).join("\n")
+          : "";
+    if (Array.isArray(transformed.messages)) {
+      transformed.messages = transformed.messages.map((message) => {
+        if (!message || message.role !== "system") return message;
+        const text = flatten(message.content);
+        if (!text) return message;
+        if (text.length > 2000 || AGENT_PATTERN.test(text)) {
+          return typeof message.content === "string"
+            ? { ...message, content: NEUTRAL_PROMPT }
+            : { ...message, content: [{ type: "text", text: NEUTRAL_PROMPT }] };
+        }
+        return message;
+      });
+    }
+
     // CodeBuddy only surfaces model reasoning when the request carries the CLI's
     // OpenAI-style params: reasoning_effort + reasoning_summary:"auto". 9router's
     // thinking pipeline sets reasoning_effort only when the client asks, and never
diff --git a/open-sse/executors/codebuddy-intl.js b/open-sse/executors/codebuddy-intl.js
index 06fe4326..bb99ff47 100644
--- a/open-sse/executors/codebuddy-intl.js
+++ b/open-sse/executors/codebuddy-intl.js
@@ -23,6 +23,20 @@ export class CodeBuddyIntlExecutor extends DefaultExecutor {
     } else if (eff) {
       transformed.reasoning_summary = "auto";
     }
+
+    // CodeBuddy rejects plain OpenAI shape (11101 invalid request): needs a
+    // leading system prompt + user content as typed blocks, not a bare string.
+    const source = Array.isArray(transformed.messages) ? transformed.messages : [];
+    transformed.messages = [{ role: "system", content: "You are CodeBuddy Code." }];
+    for (const message of source) {
+      if (!message || typeof message !== "object" || ["system", "developer"].includes(message.role)) continue;
+      if (message.role === "user" && typeof message.content === "string") {
+        transformed.messages.push({ ...message, content: [{ type: "text", text: message.content }] });
+      } else {
+        transformed.messages.push({ ...message });
+      }
+    }
+
     return transformed;
   }
 }
diff --git a/open-sse/providers/registry/codebuddy-intl.js b/open-sse/providers/registry/codebuddy-intl.js
index 7e69836c..eab1ce93 100644
--- a/open-sse/providers/registry/codebuddy-intl.js
+++ b/open-sse/providers/registry/codebuddy-intl.js
@@ -38,6 +38,10 @@ export default {
       header: "Authorization",
       scheme: "bearer",
     },
+    // Intl billing endpoint mirrors CN shape (data.Response.Data.Accounts[]).
+    usage: {
+      url: "https://www.codebuddy.ai/v2/billing/meter/get-user-resource",
+    },
   },
   // Same model lineup exposed by the CN gateway — intl backend is the same catalog.
   models: [
diff --git a/open-sse/services/usage.js b/open-sse/services/usage.js
index d1c361b9..cfcc05da 100644
--- a/open-sse/services/usage.js
+++ b/open-sse/services/usage.js
@@ -10,7 +10,7 @@ import { getCodexUsage, consumeCodexRateLimitResetCredit, getCodexRateLimitReset
 export { consumeCodexRateLimitResetCredit, getCodexRateLimitResetCredits };
 import { getKiroUsage } from "./usage/kiro.js";
 import { getMiniMaxUsage } from "./usage/minimax.js";
-import { getCodeBuddyCnUsage } from "./usage/codebuddy-cn.js";
+import { getCodeBuddyCnUsage, getCodeBuddyIntlUsage } from "./usage/codebuddy-cn.js";
 import { getGrokCliUsage } from "./usage/grok-cli.js";
 import { getKimiUsage } from "./usage/kimi.js";
 import { getDeepseekUsage } from "./usage/deepseek.js";
@@ -46,6 +46,7 @@ const USAGE_HANDLERS = {
   "minimax-cn": (c) => getMiniMaxUsage(c.apiKey, c.provider, c.proxyOptions),
   "vercel-ai-gateway": (c) => getVercelAiGatewayUsage(c.apiKey, c.proxyOptions),
   "codebuddy-cn": (c) => getCodeBuddyCnUsage(c.accessToken, c.apiKey, c.providerSpecificData, c.proxyOptions),
+  "codebuddy-intl": (c) => getCodeBuddyIntlUsage(c.accessToken, c.apiKey, c.providerSpecificData, c.proxyOptions),
   "grok-cli": (c) => getGrokCliUsage(c.accessToken, c.providerSpecificData, c.proxyOptions),
   kimi: (c) => getKimiUsage(c.accessToken, c.apiKey, c.proxyOptions, c.providerSpecificData),
   deepseek: (c) => getDeepseekUsage(c.apiKey, c.proxyOptions),
diff --git a/open-sse/services/usage/codebuddy-cn.js b/open-sse/services/usage/codebuddy-cn.js
index d355c729..e61d56c6 100644
--- a/open-sse/services/usage/codebuddy-cn.js
+++ b/open-sse/services/usage/codebuddy-cn.js
@@ -43,17 +43,17 @@ function refillCadence(acc) {
   return "Monthly";
 }
 
-export async function getCodeBuddyCnUsage(accessToken, apiKey, providerSpecificData, proxyOptions = null) {
+async function getCodeBuddyUsage(providerId, accessToken, apiKey, providerSpecificData, proxyOptions = null) {
   const token = accessToken || apiKey;
   if (!token) {
-    return { message: "CodeBuddy CN credential not available." };
+    return { message: `CodeBuddy (${providerId}) credential not available.` };
   }
 
   try {
-    const response = await proxyAwareFetch(U(PROVIDER_ID).url, {
+    const response = await proxyAwareFetch(U(providerId).url, {
       method: "POST",
       headers: {
-        ...(PROVIDERS[PROVIDER_ID]?.headers || {}),
+        ...(PROVIDERS[providerId]?.headers || {}),
         Authorization: `Bearer ${token}`,
         "Content-Type": "application/json",
         Accept: "application/json",
@@ -129,10 +129,18 @@ export async function getCodeBuddyCnUsage(accessToken, apiKey, providerSpecificD
     });
 
     const basePkg = refills[0] || accounts[0] || {};
-    const plan = basePkg.PackageName || basePkg.SubProductName || "CodeBuddy CN";
+    const plan = basePkg.PackageName || basePkg.SubProductName || "CodeBuddy";
 
     return { plan, quotas };
   } catch (error) {
-    return { message: `CodeBuddy CN error: ${error.message}` };
+    return { message: `CodeBuddy (${providerId}) error: ${error.message}` };
   }
 }
+
+export async function getCodeBuddyCnUsage(accessToken, apiKey, providerSpecificData, proxyOptions = null) {
+  return getCodeBuddyUsage(PROVIDER_ID, accessToken, apiKey, providerSpecificData, proxyOptions);
+}
+
+export async function getCodeBuddyIntlUsage(accessToken, apiKey, providerSpecificData, proxyOptions = null) {
+  return getCodeBuddyUsage("codebuddy-intl", accessToken, apiKey, providerSpecificData, proxyOptions);
+}