Outbox Pattern Implementation includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section); pricing or quota commentary; 14 code blocks for direct copy-paste. At roughly 2,261 words the SKILL.md is on the longer end of the catalog distribution.
Outbox Pattern Implementation sits in the Engineering category under the mobile sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.
These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.
The outbox pattern is the answer to one specific failure mode: a service updates its database AND publishes a message, and only one of them succeeds. Without the pattern, the database and the broker silently disagree forever; with it, the message publish becomes part of the same transaction as the row write, and a separate relay propagates it.
1. Outbox table. Application writes business rows AND a row to outbox in ONE transaction.
2. Relay. Separate process reads outbox, publishes to broker, marks row as published (or deletes it).Outbox Pattern Implementation is a community-contributed Claude Code skill in the mobile sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/outbox-pattern-implementation/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when you need to publish a message to Kafka / RabbitMQ / SNS atomically with a database commit, when fixing the dual-write hazard between DB and broker, deciding between polling-publisher and CDC (Debezium) relay, designing the outbox schema, handling at-least-once / idempotency on the consumer, or pruning a high-volume outbox table. Triggers: dual write, "we updated the DB but the event never published", outbox/inbox pattern, Debezium connector, EventRouter SMT, aggregate_type / aggregate_id, at-least-once with idempotent consumer, outbox table partitioning.
The Outbox Pattern Implementation Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 94,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/outbox-pattern-implementation curl -L https://claudskills.com/skills/outbox-pattern-implementation/SKILL.md \ -o ~/.claude/skills/outbox-pattern-implementation/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/outbox-pattern-implementation/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/outbox-pattern-implementation/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\outbox-pattern-implementation\SKILL.md on Windows. See the full install guide for step-by-step instructions.
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SKILL.md from the source repository to ~/.claude/skills/outbox-pattern-implementation/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Outbox Pattern Implementation is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{outbox-pattern-implementation-2026,
author = {curiositech},
title = {Outbox Pattern Implementation [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/outbox-pattern-implementation/}
}Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.