devlab-integration-fullstack

devlab-integration-fullstack is a skill for Claude Code, Codex from seed-forge/harness-ai-kit. It costs 42 tokens per session (5,469 once invoked), scanned A, original, Apache-2.0.

A guide to testing complete business flows across a frontend, backend services, databases, and other connected systems. It uses tools such as Playwright, Jest, SuperTest, Testcontainers, and mock servers to test multi-service setups.

In plain words
What is it for?
Use it to map cross-service workflows, create end-to-end integration tests, test Docker Compose environments, verify service data flows, or check error and compensation scenarios.
Why use it?
A unit test can pass while the full flow fails between services. This helps describe those flows and check data movement, message-based systems, and recovery from distributed transactions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { createExternalAPIMocks } from '../mocks/api-helpers';.

Good fit Use it to map cross-service workflows, create end-to-end integration tests, test Docker Compose environments, verify service data flows, or check error and compensation scenarios.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/seed-forge/harness-ai-kit
agentmods
npx agentmods add skills/seed-forge/harness-ai-kit/devlab-integration-fullstack

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for devlab-integration-fullstack

README.md
[![agentmods](https://agentmods.dev/badge/skills/seed-forge/harness-ai-kit/devlab-integration-fullstack/github.svg)](https://agentmods.dev/skills/seed-forge/harness-ai-kit/devlab-integration-fullstack)
Your own site
<a href="https://agentmods.dev/skills/seed-forge/harness-ai-kit/devlab-integration-fullstack"><img src="https://agentmods.dev/badge/skills/seed-forge/harness-ai-kit/devlab-integration-fullstack/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for devlab-integration-fullstack

Your own site · 80×15
<a href="https://agentmods.dev/skills/seed-forge/harness-ai-kit/devlab-integration-fullstack"><img src="https://agentmods.dev/badge/skills/seed-forge/harness-ai-kit/devlab-integration-fullstack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,469 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 41
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Data Exfiltration · line 265
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 287
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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 5.1 $0.00042 $0.05469
Opus 5.5 $0.00017 $0.02188
Sonnet 5.5 $0.00008 $0.01094
Haiku 4.5 $0.00004 $0.00547

Measured 1mo ago against content hash 537ff292f5c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

devlab-integration-fullstack 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 1mo 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/devlab-integration-fullstack/SKILL.md · 743 lines

How it starts

The opening of the file, as written. The whole thing — 743 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Full Stack Integration Testing Expert Skill

专注前后端混合架构的端到端业务流程验证能力。

覆盖微服务联动、消息队列集成、分布式事务补偿等复杂场景。


触发条件

当用户提到以下关键词时触发此 Skill:

  • "全栈集成测试" / "full stack integration test"
  • "微服务端到端流程" / "microservice end-to-end workflow"
  • "跨服务数据流" / "cross-service data flow"
  • "事件驱动架构测试" / "event-driven architecture testing"
  • "分布式事务验证" / "distributed transaction validation"

技术栈依赖

核心 CLI

# E2E Testing
npm install -D @playwright/test

# Backend Testing
npm install -D jest supertest

# Infrastructure (Testcontainers)
npm install -D @testcontainers/postgresql @testcontainers/redis

AI Agent 初始化

npx playwright init-agents --loop=claude

功能范围

Phase 1: 跨服务业务流程映射

输入:

  • 系统架构图(C4 模型或类似)
  • API 契约文档
  • 业务流程描述(User Journey)

输出:

  • specs/workflows/*.md — 业务流程规格
  • specs/data-flow.md — 数据流图谱
  • specs/error-handling.md — 异常处理场景
Step 1.1: 服务拓扑分析
// services/service-graph-analyzer.ts

interface Service {
  id: string;
  name: string;
  type: 'api' | 'worker' | 'scheduler';
  endpoints?: Endpoint[];
}

interface Dependency {
  from: string;
  to: string;
  protocol: 'http' | 'grpc' | 'message';
  pattern: 'sync' | 'async' | 'saga';
}

class ServiceGraphAnalyzer {
  analyze(configs: any[]): { services: Service[], dependencies: Dependency[] } {
    const services = config.map(c => ({
      id: c.name,
      name: c.displayName,
      type: this.determineType(c),
      endpoints: this.extractEndpoints(c)
    }));
    
    const dependencies = this.extractDependencies(services, configs);
    
    return { services, dependencies };
  }
  
  extractDependencies(services: Service[], configs: any[]): Dependency[] {
    const deps: Dependency[] = [];
    
    configs.forEach(config => {
      // HTTP dependencies
      if (config.services?.forEach((target: string) => {
        deps.push({
          from: config.name,
          to: target,
          protocol: 'http',
          pattern: 'sync'
        });
      }));
      
      // Message queue dependencies
      if (config.topics?.length > 0) {
        config.topics.forEach(topic => {
          deps.push({
            from: config.name,
            to: topic,
            protocol: 'message',
            pattern: 'async'
          });
        });
      }
    });
    
    return deps;
  }
}

Read the full file on GitHub · 743 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago First seen · 743 lines · 42 tokens per session scan A 537ff292f5c5

Subscribe to this mod's changes

devlab-integration-fullstack is a skill published in the GitHub repository seed-forge/harness-ai-kit (25 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 42 tokens to every session and 5,469 once invoked, about $0.0002 per session on Opus 5.5. 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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