Official agent skill

Hybrid Cloud Outboxes

by getsentry in getsentry/sentry

Guide for creating and maintaining outbox-based eventually consistent operations in Sentry.

OfficialCustom licenceAuto-check passedDatabases

Install Hybrid Cloud Outboxes

skills CLI
$ npx skills add getsentry/sentry --skill hybrid-cloud-outboxes -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install getsentry/sentry hybrid-cloud-outboxes --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/getsentry/sentry.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/hybrid-cloud-outboxes .claude/skills/hybrid-cloud-outboxes && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
hybrid-cloud-outboxes
GitHub stars
45k
Token cost
~4.8k tokens
SKILL.md length
1,424 words
Files
5 (incl. references)
Skills in repo
29
Repo updated
First seen
Licence
Custom licence

At a glance

Guide for creating and maintaining outbox-based eventually consistent operations in Sentry.

  • Works in 9 steps: Determine What You Need → Add Outbox Replication to a New Model → Add a New OutboxCategory → …
  • Asked to add outbox
  • SKILL.md covers Critical Constraints, Step 1: Determine What You Need, Step 2: Add Outbox Replication… and Step 3: Add a New OutboxCategory, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Hybrid Cloud Outboxes is an agent skill from getsentry/sentry, published by the product's own GitHub organization. Guide for creating and maintaining outbox-based eventually consistent operations in Sentry. Most commonly used for cross-silo data replication, but applicable anywhere eventual consistency is needed — including single-silo deferred side effects, audit logging, and event fanout. Use when asked to "add outbox", "add outbox replication", "replicate model to control silo", "replicate model to cell", "add outbox category", "write outbox signal receiver", "debug stuck outboxes", "outbox not processing", "data not…

Its SKILL.md is about 4.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `references/backfill.md`, `references/category-and-scope.md` and `references/debugging.md`).

It sits in Databases, covering Database administration and Debugging. It works with Sentry. The repository describes itself as: Developer-first error tracking and performance monitoring.

When your agent uses it

  • Asked to add outbox
  • Add outbox replication
  • Replicate model to control silo
  • Replicate model to cell

Example prompts

  • “add outbox”
  • “add outbox replication”
  • “replicate model to control silo”
  • “/hybrid-cloud-outboxes”

Requirements

  • Python 3

Workflow steps

9 steps, taken from the step headings in SKILL.md.

  1. Determine What You Need
  2. Add Outbox Replication to a New Model
  3. Add a New OutboxCategory
  4. Write a Manual Signal Receiver
  5. Migrate an Existing Model to Use Outboxes
  6. Set Up a Backfill
  7. Test Outbox-Based Replication
  8. Debug Stuck Outboxes
  9. Verify (Pre-flight Checklist)

What it can do on your machine

Read from SKILL.md and the folder at commit 87d1203. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are python).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Hybrid Cloud Outboxes loads about 4.8k tokens when it runs, and up to ~13k if it reads all its reference files. Until then it costs about 212 tokens; SKILL.md has 1,424 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~212
When it runs · the whole SKILL.md, loaded when a task matches
~4.8k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~13k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,424 words (~4,753 tokens).

“Sentry uses a transactional outbox pattern for eventually consistent operations. When a model changes, an outbox row is written inside the same database transaction. After the transaction commits, the outbox is drained — firing a signal that triggers side effects…”

— opening of SKILL.md by getsentry, Custom licence
name
hybrid-cloud-outboxes

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (references) in .agents/skills/hybrid-cloud-outboxes of getsentry/sentry.

  • SKILL.md
  • references/backfill.md
  • references/category-and-scope.md
  • references/debugging.md
  • references/signal-receivers.md

Open the folder on GitHubat commit 87d1203

Compare with similar skills

Hybrid Cloud Outboxes next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Hybrid Cloud Outboxes compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Hybrid Cloud Outboxes this skillgetsentry/sentry45k—~4.8kAutomated safety check: PassCustom licence
Qv Registry Autobase Patternstetherto/qvac674—~441Automated safety check: PassApache-2.0
Cleanupwannabespace/conar1.5k—~2.4kAutomated safety check: PassAGPL-3.0
Production Error Huntdifferent-ai/openwork24k—~803Automated safety check: PassCustom licence
Slow Database InterviewerPrepLabsAI/InterviewMentor112—~2.6kAutomated safety check: PassMIT
Doca Erasure CodingNVIDIA/skills3.5k—~4.3kAutomated safety check: PassApache-2.0

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Works with

Questions about Hybrid Cloud Outboxes

What does Hybrid Cloud Outboxes do?

Guide for creating and maintaining outbox-based eventually consistent operations in Sentry. Hybrid Cloud Outboxes is an agent skill from getsentry/sentry, published by the product's own GitHub organization. Guide for creating and maintaining outbox-based eventually consistent operations in Sentry.

When should I use Hybrid Cloud Outboxes?

Hybrid Cloud Outboxes fits situations like: asked to add outbox; add outbox replication; replicate model to control silo; replicate model to cell.

How do I install Hybrid Cloud Outboxes in Claude Code?

Run `npx skills add getsentry/sentry --skill hybrid-cloud-outboxes -a claude-code`. Or copy the skill folder (.agents/skills/hybrid-cloud-outboxes in getsentry/sentry) into .claude/skills/hybrid-cloud-outboxes in your project. Claude Code loads it when a task matches its description.

How do I install Hybrid Cloud Outboxes in Codex?

Run `npx skills add getsentry/sentry --skill hybrid-cloud-outboxes -a codex`. Or copy the skill folder (.agents/skills/hybrid-cloud-outboxes in getsentry/sentry) into .agents/skills/hybrid-cloud-outboxes in your project. Codex loads it when a task matches its description.

Can I use Hybrid Cloud Outboxes in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add getsentry/sentry --skill hybrid-cloud-outboxes -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hybrid-cloud-outboxes, .gemini/skills/hybrid-cloud-outboxes, .github/skills/hybrid-cloud-outboxes and .opencode/skills/hybrid-cloud-outboxes in your project.

What does Hybrid Cloud Outboxes need to run?

SKILL.md names no scripts, command-line tools or credentials: Hybrid Cloud Outboxes is instructions for the agent only. Our summary lists: Python 3.

Does Hybrid Cloud Outboxes access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Hybrid Cloud Outboxes safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Hybrid Cloud Outboxes use?

Hybrid Cloud Outboxes has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Hybrid Cloud Outboxes use?

About 4.8k tokens (SKILL.md is roughly 19k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 8.2k tokens, read only when the agent opens those files.

What are the alternatives to Hybrid Cloud Outboxes?

Skills that share tags, products or a category with Hybrid Cloud Outboxes: Qv Registry Autobase Patterns (tetherto/qvac, 674 stars), Cleanup (wannabespace/conar, 1.5k stars), Production Error Hunt (different-ai/openwork, 24k stars) and Slow Database Interviewer (PrepLabsAI/InterviewMentor, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Hybrid Cloud Outboxes?

getsentry (a GitHub organization, an official publisher) maintains it in getsentry/sentry, which has 45,495 GitHub stars. The repository holds 29 skills in this directory. The repository was last updated on October 7, 2026.

Source: getsentry/sentry on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.