diff --git a/.env.example b/.env.example
index 50f0f5f..5ea64be 100644
--- a/.env.example
+++ b/.env.example
@@ -5,22 +5,11 @@
 # 只需在 ~/.openclaw/.env 中配置 CLIENT_KEY：
 #   CLIENT_KEY=sk_xxxxxxxx.xxxxxxxxxxxxxxxxxxxxxxxx
 #
-# Vision API key、图搜接口等均通过 auth-rt client-config 自动获取，
-# 无需在此手动填写。
+# 所有配置（vision API key、接口地址等）均通过 auth-rt client-config 自动获取。
 # =============================================================================
 
-# -----------------------------------------------------------------------------
-# 可选覆盖（通常不需要）
-# -----------------------------------------------------------------------------
-
-# 覆盖 Vision 模型（默认来自 client config，fallback 为 gpt-4o-mini）
-# VISION_MODEL=gpt-4o-mini
-
-# 覆盖 Vision API base URL（默认来自 client config metadata.provider.base_url）
-# VISION_API_BASE=https://your-llm-endpoint/v1
-
-# 覆盖 Vision API key（默认来自 client config metadata.provider.api_key）
-# VISION_API_KEY=sk-...
+# 覆盖 Vision 模型（默认来自 client config，fallback 为 aliyun-cp-multimodal）
+# VISION_MODEL=aliyun-cp-multimodal
 
 # 覆盖 auth-rt 二进制路径
 # AUTH_RT_BIN=/custom/path/to/auth-rt
diff --git a/README.md b/README.md
index f8e478e..4c04364 100644
--- a/README.md
+++ b/README.md
@@ -85,15 +85,13 @@ The only required configuration is `CLIENT_KEY` in `~/.openclaw/.env`:
 CLIENT_KEY=sk_xxxxxxxx.xxxxxxxxxxxxxxxxxxxxxxxx
 ```
 
-Everything else — vision API key, image search endpoints — is fetched automatically from the client config via `auth-rt`. No per-skill env vars needed.
+All credentials and endpoints are fetched automatically from the client config via `auth-rt`. No per-skill env vars needed.
 
 ### Optional overrides
 
 | Variable | Description |
 |----------|-------------|
 | `VISION_MODEL` | Override model name (default: `aliyun-cp-multimodal`) |
-| `VISION_API_BASE` | Override vision API base URL |
-| `VISION_API_KEY` | Override vision API key |
 | `AUTH_RT_BIN` | Override path to the `auth-rt` binary |
 | `TELEMETRY_ENDPOINT` | POST execution results to a telemetry endpoint |
 
diff --git a/src/index.ts b/src/index.ts
index 957344a..b5608a2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -16,11 +16,11 @@ export interface VisionConfig {
 
 async function loadVisionConfig(client: ReturnType<typeof createSkillClient>): Promise<VisionConfig> {
   const cfg = await client.clientConfig();
-  const apiKey = cfg.metadata?.provider?.api_key ?? process.env.VISION_API_KEY;
+  const apiKey = cfg.metadata?.provider?.api_key;
   if (!apiKey) throw new Error('Vision API key not found in client config (metadata.provider.api_key)');
   return {
     apiKey,
-    baseURL: cfg.metadata?.provider?.base_url ?? process.env.VISION_API_BASE,
+    baseURL: cfg.metadata?.provider?.base_url,
     model: process.env.VISION_MODEL ?? cfg.metadata?.provider?.model ?? 'aliyun-cp-multimodal',
   };
 }