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Agent skill

System Design Integration Patterns

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Choose distributed integration and evolution patterns by the constraint each removes: outbox, CQRS, event sourcing, saga orchestration or choreography, leader election, sidecar, anti-corruption…

MITAuto-check passedBackend & APIs

Install System Design Integration Patterns

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill system-design-integration-patterns -a claude-code

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

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard system-design-integration-patterns --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/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/system-design/system-design-integration-patterns .claude/skills/system-design-integration-patterns && 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
system-design-integration-patterns
GitHub stars
572
Token cost
~964 tokens
SKILL.md length
464 words
Files
3 (incl. references)
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Choose distributed integration and evolution patterns by the constraint each removes: outbox, CQRS, event sourcing, saga orchestration or choreography, leader election, sidecar, anti-corruption…

  • Services must stay consistent across a boundary
  • SKILL.md covers Priority: P1 (HIGH), Selection Table, Consistency Across a Boundary and Evolution, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Tasks that involve Event-driven systems

What it does

System Design Integration Patterns is an agent skill from HoangNguyen0403/agent-skills-standard. Choose distributed integration and evolution patterns by the constraint each removes: outbox, CQRS, event sourcing, saga orchestration or choreography, leader election, sidecar, anti-corruption layer, and strangler-fig migration. Use when services must stay consistent across a boundary.

Its SKILL.md is about 960 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/integration-patterns.md`).

It sits in Backend & APIs, covering Event-driven systems and Third-party API integration. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.

When your agent uses it

  • Services must stay consistent across a boundary
  • Tasks that involve Event-driven systems
  • Tasks that involve Third-party API integration

Example prompts

  • “/system-design-integration-patterns”

What it can do on your machine

Read from SKILL.md and the folder at commit b529c2d. 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.

    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

System Design Integration Patterns loads about 964 tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 81 tokens; SKILL.md has 464 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~81
When it runs · the whole SKILL.md, loaded when a task matches
~964
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.2k

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

The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 464 words, ~964 tokens.

Download SKILL.mdSave it as .claude/skills/system-design-integration-patterns/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
system-design-integration-patterns
description
Choose distributed integration and evolution patterns by the constraint each removes: outbox, CQRS, event sourcing, saga orchestration or choreography, leader election, sidecar, anti-corruption layer, and strangler-fig migration. Use when services must stay consistent across a boundary.

Integration Patterns

Priority: P1 (HIGH)

Each pattern buys one guarantee and charges operational complexity. Adopt on evidence, not on architecture fashion.

Selection Table

Constraint observedPatternCost accepted
A write must update the database and publish an event atomicallyTransactional outboxA relay (poller or CDC) to run and monitor
Read shape and write shape have diverged and one model serves neitherCQRSTwo models, sync lag, doubled tests
The sequence of changes is itself the product (audit, replay, temporal queries)Event sourcingProjections, event versioning, no easy delete
A business transaction spans services and cannot hold a lockSaga with compensationsCompensating action per step; no isolation
Exactly one instance may run a job or own a resourceLeader election (lease-based)Fencing tokens; split-brain handling
Cross-cutting concerns repeated in every serviceSidecar or ambassadorAnother process per pod to operate
A legacy or third-party model would infect the domainAnti-corruption layerA translation layer to maintain
Each client surface needs a different aggregate shapeBackends-for-frontendsOne backend per surface, owned by that team
A monolith must be replaced without a rewrite freezeStrangler figDual routing and a live seam until the last slice moves

Consistency Across a Boundary

  • Never dual-write. Write to your own store, then publish from the outbox or CDC stream; anything else drifts silently.
  • Saga orchestration puts the sequence in one coordinator: use it beyond ~4 steps, or when compensations must be reasoned about together.
  • Saga choreography lets each service react to events: use it for short flows between 2-3 services that already publish.
  • Every saga step needs its compensation defined before implementation. A step with no compensation is a step that must move to the end or become idempotent-retryable.
  • Correlate everything: one id threads the whole flow through logs, events, and compensations.
Show full SKILL.md (166 more words)Show less

Evolution

  • Strangler fig: route one slice at a time behind a facade, run old and new in parallel, retire the old path only after traffic and data are verified.
  • Branch by abstraction inside a service: introduce the seam, implement behind it, switch, delete the old side.
  • Schema and event changes follow expand-contract, as in system-design-data-architecture.

Anti-Patterns

  • No CQRS by default: separate models only after one model demonstrably fails both sides.
  • No event sourcing for ordinary CRUD: audit needs an audit log, not a rebuilt world.
  • No dual write: outbox or CDC, never a database write followed by a hopeful publish.
  • No choreography past 4 steps: nobody can answer "where is order 123" without a coordinator.
  • No two-phase commit on the hot path: the coordinator is a SPOF and the locks are the outage.
  • No distributed lock as a correctness mechanism: leases expire under GC pauses; use fencing tokens or single ownership.

References

© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/system-design/system-design-integration-patterns of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json
  • references/integration-patterns.md

Open the folder on GitHubat commit b529c2d

Compare with similar skills

System Design Integration Patterns 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.

System Design Integration Patterns compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
System Design Integration Patterns this skillHoangNguyen0403/agent-skills-standard572—~964Automated safety check: PassMIT
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API Integrationsickn33/agentic-awesome-skills47k1 repos~1.3kAutomated safety check: PassMIT
123 Java Design Patternsjabrena/plinth447—~1.1kAutomated safety check: PassApache-2.0
Integration PatternsJoelLewis/finance_skills206—~10kAutomated safety check: PassMIT
Customerio Reference Architecturejeremylongshore/tons-of-skills-marketplace2.8k—~2.8kAutomated safety check: PassMIT

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Categories

Questions about System Design Integration Patterns

What does System Design Integration Patterns do?

Choose distributed integration and evolution patterns by the constraint each removes: outbox, CQRS, event sourcing, saga orchestration or choreography, leader election, sidecar, anti-corruption…. System Design Integration Patterns is an agent skill from HoangNguyen0403/agent-skills-standard. Choose distributed integration and evolution patterns by the constraint each removes: outbox, CQRS, event sourcing, saga orchestration or choreography, leader election, sidecar, anti-corruption layer, and strangler-fig migration.

When should I use System Design Integration Patterns?

System Design Integration Patterns fits situations like: services must stay consistent across a boundary; tasks that involve Event-driven systems; tasks that involve Third-party API integration.

How do I install System Design Integration Patterns in Claude Code?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill system-design-integration-patterns -a claude-code`. Or copy the skill folder (skills/system-design/system-design-integration-patterns in HoangNguyen0403/agent-skills-standard) into .claude/skills/system-design-integration-patterns in your project. Claude Code loads it when a task matches its description.

How do I install System Design Integration Patterns in Codex?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill system-design-integration-patterns -a codex`. Or copy the skill folder (skills/system-design/system-design-integration-patterns in HoangNguyen0403/agent-skills-standard) into .agents/skills/system-design-integration-patterns in your project. Codex loads it when a task matches its description.

Can I use System Design Integration Patterns 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 HoangNguyen0403/agent-skills-standard --skill system-design-integration-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/system-design-integration-patterns, .gemini/skills/system-design-integration-patterns, .github/skills/system-design-integration-patterns and .opencode/skills/system-design-integration-patterns in your project.

What does System Design Integration Patterns need to run?

SKILL.md names no scripts, command-line tools or credentials: System Design Integration Patterns is instructions for the agent only.

Does System Design Integration Patterns 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 System Design Integration Patterns 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 System Design Integration Patterns use?

System Design Integration Patterns is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does System Design Integration Patterns use?

About 964 tokens (SKILL.md is roughly 3.9k 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 1.2k tokens, read only when the agent opens those files.

What are the alternatives to System Design Integration Patterns?

Skills that share tags, products or a category with System Design Integration Patterns: Azure Service Bus for Python (microsoft/skills, 3.1k stars), API Integration (sickn33/agentic-awesome-skills, 47k stars), 123 Java Design Patterns (jabrena/plinth, 447 stars) and Integration Patterns (JoelLewis/finance_skills, 206 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains System Design Integration Patterns?

HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.

Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.