redis

redis is a skill for Claude Code, Codex from kid-sid/codex-spellbook. It costs 38 tokens per session (4,515 once invoked), scanned A, original, MIT.

Guidance for using Redis, an in-memory data store, in Python applications. It covers data structures, caching, rate limits, messaging, queues, locks, and connection management.

In plain words
What is it for?
Use it to build caches, counters, rate limiters, distributed locks, publish-and-subscribe systems, Redis Streams, job queues, and asynchronous Redis clients.
Why use it?
It helps choose an appropriate Redis feature and avoid common mistakes in storing data, sharing messages, or coordinating workers.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/kid-sid/codex-spellbook/redis
Any agent
npx skills add kid-sid/codex-spellbook --skill redis
Clone the repo
git clone --depth 1 https://github.com/kid-sid/codex-spellbook

Made for: Claude Code, Codex.

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,515 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00038 $0.04515
Opus 5 $0.00019 $0.02257
Sonnet 5 $0.00008 $0.00903
Haiku 4.5 $0.00004 $0.00451

Measured 3d ago against content hash 0cef90c17b90, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

redis scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/redis/SKILL.md · 544 lines

How it starts

The opening of the file, as written. The whole thing — 544 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Redis Patterns

Redis data structures, caching, pub/sub, and streams for Python async apps.

When to Activate

  • Choosing the right Redis data structure for a use case
  • Implementing caching (cache-aside, write-through, TTL eviction)
  • Using pub/sub or Redis Streams for real-time messaging / SSE
  • Building a job queue with SKIP LOCKED semantics
  • Writing atomic operations (counters, rate limits, distributed locks)
  • Debugging slow Redis commands or memory bloat

Connection (async redis-py)

import redis.asyncio as redis

# Single connection
client = await redis.from_url("redis://localhost:6379", decode_responses=True)

# Connection pool (recommended for apps)
pool = redis.ConnectionPool.from_url(
    "redis://localhost:6379",
    decode_responses=True,
    max_connections=20,
)
client = redis.Redis(connection_pool=pool)

# Close on shutdown
await client.aclose()

decode_responses=True returns str instead of bytes — use it unless you store binary data.


Data Structure Decision Table

Structure Use For Avoid When
String Single values, JSON blobs, counters, distributed locks Frequently updating one field of many
Hash Objects with multiple fields; partial field reads/writes >100 fields or deeply nested — use String+JSON instead
List FIFO queues, activity feeds, bounded history Random access by index — use Sorted Set
Set Unique membership, tag intersections/unions, "online users" Need ordering or score — use Sorted Set
Sorted Set Leaderboards, priority queues, time-ordered events, rate limiting Cardinality >10M — memory gets expensive
Stream Durable pub/sub, consumer groups, event log Simple fire-and-forget — use pub/sub
HyperLogLog Approx unique count (±0.81% error, capped at 12 KB) Exact count required
Bitmap Per-user boolean flags, daily active user tracking More than 512 MB of bits

Data Structures

Strings — single values, counters, JSON blobs

Read the full file on GitHub · 544 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 544 lines · 38 tokens per session scan A 0cef90c17b90

Subscribe to this mod's changes

redis is a skill published in the GitHub repository kid-sid/codex-spellbook (21 stars, last pushed 3mo ago), licensed MIT. It adds 38 tokens to every session and 4,515 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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