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Get Started Free →vibeeval/redis-patterns
Data structure selection, pub/sub patterns, Lua scripting, pipelining, and cluster topology strategies.
Passed 21 of 23 test cases with the skill, and 20 of 23 without it.
2 fixed19 passed either way1 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
We are implementing a job processing queue using Redis List data structure. To ensure no jobs are lost if a worker crashes right after fetching a task, what atomic command should be used when popping from the queue?
| Checked | Without skill | With skill |
|---|---|---|
| Uses brpoplpush to atomically dequeue and backup the message. | Missed | Passed |
The instructions your model reads when the skill loads.
Advanced Redis usage beyond simple key-value caching.
Use Case → Structure → Why
Session store → Hash → Partial field updates without full deserialize
Rate limiter → Sorted Set → ZRANGEBYSCORE for sliding window
Job queue → List + Stream → BRPOPLPUSH for reliable queue
Leaderboard → Sorted Set → ZREVRANGE with scores
Unique visitors → HyperLogLog → O(1) cardinality, 0.81% error
Feature flags → Hash → HGET per flag, HGETALL for bulk
Presence (who's online) → Set → SADD/SREM, SMEMBERS
Geolocation → Geo → GEOSEARCH within radius
import Redis from 'ioredis'
const redis = new Redis(process.env.REDIS_URL!)
async function acquireLock(
key: string,
ttlMs: number = 10_000
): Promise<string | null> {
const token = crypto.randomUUID()
const acquired = await redis.set(
`lock:${key}`, token,
'PX', ttlMs,
'NX' // Only set if not exists
)
return acquired === 'OK' ? token : null
}
async function releaseLock(key: string, token: string): Promise<boolean> {
// Lua script: only delete if token matches (atomic check-and-delete)
test cases passed, vs 20 / 23 without
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