fix: address Codex review feedback (3 issues)

- Fix SDK check to verify local node_modules instead of global npm
- Align monitor metrics documentation with CLI flags (CPU/Memory)
- Add pagination support for instance listing (--page, --page-size)

PR_DESCRIPTION.md

@@ -0,0 +1,38 @@
+# PR Description
+
+## What & Why
+
+Improved the "good first issue" link in CONTRIBUTING.md to directly filter issues with the label, making it easier for new contributors to find entry points.
+
+### Before
+```
+Check the [GitHub Issues](https://github.com/openclaw/openclaw/issues) for "good first issue" labels!
+```
+- Required manual filtering
+- Extra step for newcomers
+
+### After
+```
+Check the [good first issues](https://github.com/openclaw/openclaw/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22) to get started!
+```
+- One-click access to filtered issues
+- Better newcomer experience
+
+## Type of Change
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Breaking change
+- [x] Documentation improvement
+
+## Testing
+- [x] Verified the link works correctly
+- [x] Checked markdown rendering
+
+## Checklist
+- [x] Change is focused (single concern)
+- [x] Description explains what & why
+- [ ] ~~Screenshots included~~ (N/A - text change only)
+
+---
+
+**Note:** This is my first contribution to OpenClaw. Excited to be part of the community! 🦞

skills/aliyun-ecs-skill/SKILL.md

@@ -122,15 +122,15 @@ aliyun-ecs restart --region cn-hangzhou --id i-xxxxxxxxxx
 
 ```bash
 # 获取监控数据（CPU、内存、网络）
-aliyun-ecs monitor --region cn-hangzhou --id i-xxxxxxxxxx --metrics CPUUtilization,MemoryUtilization
+aliyun-ecs monitor --region cn-hangzhou --id i-xxxxxxxxxx --metrics CPU,Memory
 
 # 支持的监控指标:
-# CPUUtilization - CPU使用率
-# MemoryUtilization - 内存使用率
-# InternetInRate - 公网入带宽
-# InternetOutRate - 公网出带宽
-# DiskReadIOPS - 磁盘读IOPS
-# DiskWriteIOPS - 磁盘写IOPS
+# CPU - CPU使用率
+# Memory - 内存使用率
+# InternetIn - 公网入带宽(Kbps)
+# InternetOut - 公网出带宽(Kbps)
+# IntranetIn - 内网入带宽(Kbps)
+# IntranetOut - 内网出带宽(Kbps)
 ```
 
 ### 快照管理

skills/aliyun-ecs-skill/scripts/setup.sh

@@ -32,16 +32,12 @@ node_check() {
 
 # 检查阿里云SDK
 sdk_check() {
-    if npm list -g @alicloud/openapi-client &> /dev/null; then
+    # 优先检查本地 node_modules（skill 运行时从这里加载）
+    if [ -d "$SCRIPT_DIR/../node_modules/@alicloud/openapi-client" ] && [ -d "$SCRIPT_DIR/../node_modules/@alicloud/ecs20140526" ]; then
         echo -e "${GREEN}✓ 阿里云SDK已安装${NC}"
         return 0
     fi
     
-    if npm list @alicloud/openapi-client &> /dev/null 2>&1; then
-        echo -e "${GREEN}✓ 阿里云SDK已安装（本地）${NC}"
-        return 0
-    fi
-    
     echo -e "${YELLOW}⚠ 阿里云SDK未安装${NC}"
     return 1
 }

skills/aliyun-ecs-skill/src/index.js

@@ -136,10 +136,20 @@ async function main() {
                     console.error('错误: 请提供 --region 参数');
                     process.exit(1);
                 }
-                const instances = await ecs.describeInstances(options.region);
-                console.log(`\n地域 ${options.region} 的实例列表:\n`);
+                const pageSize = parseInt(options['page-size']) || 20;
+                const pageNumber = parseInt(options.page) || 1;
+                const listOptions = {
+                    pageSize: pageSize,
+                    pageNumber: pageNumber,
+                };
+                const instances = await ecs.describeInstances(options.region, listOptions);
+                console.log(`\n地域 ${options.region} 的实例列表 (第${pageNumber}页, 每页${pageSize}条):\n`);
                 if (instances.length === 0) {
-                    console.log('暂无实例');
+                    if (pageNumber > 1) {
+                        console.log('该页无实例，可能是已到达末尾');
+                    } else {
+                        console.log('暂无实例');
+                    }
                 } else {
                     console.log(formatTable(instances.map(inst => ({
                         ...inst,
@@ -152,6 +162,7 @@ async function main() {
                         { key: 'instanceType', header: '类型' },
                         { key: 'ip', header: 'IP地址' },
                     ]));
+                    console.log(`\n提示: 使用 --page N 查看下一页，--page-size N 调整每页数量`);
                 }
                 break;
             }