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cc-redis-safety

当用户操作 Redis 相关代码(go-redis、Jedis、redis-py、ioredis)时触发。涵盖禁止 KEYS 命令、SCAN 替代、大 key 控制、Pipeline 批量、TTL 规范等安全与性能要点。

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Works withRedis
See how to install

Files included (2)

  • SKILL.md2.0 KB
  • agents/openai.yaml253 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Redis 安全规范

防止 Redis 常见性能和稳定性问题,适用于所有语言。


禁止操作

禁止替代原因
KEYS * / KEYS patternSCAN 游标迭代KEYS 是 O(N) 阻塞操作,生产环境会导致 Redis 卡死
FLUSHDB / FLUSHALL按 key 前缀 SCAN + DEL全量删除风险极高
无 TTL 的 SET所有 key 必须设置 TTL避免内存泄漏

必须遵守

1. 用 SCAN 替代 KEYS

// Go (go-redis) ❌
keys, _ := rdb.Keys(ctx, "user:*").Result()

// Go (go-redis) ✅
var cursor uint64
for {
    keys, cursor, _ = rdb.Scan(ctx, cursor, "user:*", 100).Result()
    // 处理 keys
    if cursor == 0 { break }
}
// Java (Jedis) ❌
Set<String> keys = jedis.keys("user:*");

// Java (Jedis) ✅
ScanParams params = new ScanParams().match("user:*").count(100);
String cursor = "0";
do {
    ScanResult<String> result = jedis.scan(cursor, params);
    // 处理 result.getResult()
    cursor = result.getCursor();
} while (!cursor.equals("0"));
# Python (redis-py) ❌
keys = r.keys("user:*")

# Python (redis-py) ✅
for key in r.scan_iter(match="user:*", count=100):
    # 处理 key

2. 大 key 控制

  • 单个 key 的 value 不超过 10KB
  • 集合类型(List/Set/Hash/ZSet)元素不超过 5000 个
  • 超过时拆分为多个 key

3. Pipeline 批量操作

多次 Redis 调用应使用 Pipeline 减少网络往返:

// ❌ 循环单次调用
for _, id := range ids {
    rdb.Get(ctx, "user:"+id)
}

// ✅ Pipeline 批量
pipe := rdb.Pipeline()
for _, id := range ids {
    pipe.Get(ctx, "user:"+id)
}
pipe.Exec(ctx)

4. 所有 key 设置 TTL

// ❌
rdb.Set(ctx, "token:123", value, 0)

// ✅
rdb.Set(ctx, "token:123", value, 24*time.Hour)

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