Best integration testing skills for Claude Code, Codex and other agents.

Validates OpenHarness features by running real multi-turn agent loops with live LLM calls against an unfamiliar codebase, checking actual tool execution.

HKUDS/OpenHarness

Write and review Playwright E2E tests for Langflow. An agent skill from langflow-ai/langflow.

langflow-ai/langflow

Sets the test-writing workflow for the repository: risk-first scenario lists, behavior-focused Vitest tests, a full run before each commit and a coverage target.

iOfficeAI/AionUi

Explains how to run agent integration tests against remote executors, using Docker for Linux or Wine for Windows, and how to opt tests in or skip them.

openinterpreter/openinterpreter

Starts a throwaway MongoDB 7.0 replica set and runs the Airbyte spec, check, discover and read commands against source-mongodb-v2 images for local end-to-end testing.

airbytehq/airbyte

Creates a Java SDK end-to-end test for the Copilot SDK that runs against a recorded YAML snapshot through a replay proxy, so CI needs no real authentication.

github/copilot-sdk

Guide to the Megatron-LM test system: layout, recipe YAML, running and adding unit and functional tests, golden values, marker filters and CI parity.

NVIDIA/Megatron-LM

A skill your agent uses when asked to create or update integration tests for any Flet control in sdk/python/packages/flet/integrationtests, including visual goldens and interactive behavior tests.

flet-dev/flet

Run a live-instance verification of traceway-cli that goes beyond the Go smoke suite — exercises real-data detail endpoints, TTY-default rendering, adaptive metric-name discovery, and emits a…

tracewayapp/traceway

Guides writing and reviewing pREST Docker-based integration tests so every HTTP request is explained by step comments or table-driven descriptions.

prest/prest

Explains how to run go-redis tests: the Docker Compose stack, make targets, focusing a single Ginkgo spec, the e2e suite and the version environment variables.

redis/go-redis

Guides building Rust desktop apps with the gpui-kit crate, covering component selection, state ownership, theming and overlays, plus normative GPUI coding rules.

AprilNEA/OpenLogi

Add or extend Redis commands in the Lettuce client API end-to-end — a new core command, a family of new commands, an extension to an existing command's options, or a module/area command…

redis/lettuce

Adds integration or unit tests to an OpenROAD module: writes the Tcl test, generates golden files and registers it in both CMake and Bazel.

The-OpenROAD-Project/OpenROAD

Bump Apache Fory release or post-release development versions across Java, Kotlin, Scala, Python, Rust, Go, C++, C, Dart, JavaScript, Swift, integration tests, examples, and source docs.

apache/fory

Local test harness for the Weave router: a docker compose stack plus codex exec runs that confirm how Codex requests are routed, translated and marked.

weave-os/router

Step-by-step guide for adding a new built-in RESP command to Garnet, from the command enum and parser to storage callbacks, command metadata JSON and tests.

microsoft/garnet

Generate hybrid cloud tests for the Sentry codebase. An agent skill from getsentry/sentry.

getsentry/sentry

Starts a local PostgreSQL 16 container, loads SQL fixtures and runs the Airbyte spec, check, discover and read commands against a chosen source-postgres image.

airbytehq/airbyte

Integrate a benchmark or custom environment into SAfactory using fixed adapter templates and local contract tests, optionally run Docker/RJob evaluation, or prepare GRPO/RL training.

AI45Lab/SAfactory

Lets one MiMoCode process drive another, headless with JSON events or interactively through tmux, to test behavior and visual regressions with parseable evidence.

XiaomiMiMo/MiMo-Code

Add a new AWS event source attribute (e.g., Kinesis, Kafka, MQ) to the Lambda .NET Annotations framework, including the attribute class, source generator integration, CloudFormation writer, unit…

aws/aws-lambda-dotnet

Use when recording TiDB integration tests under tests/integrationtest and verifying regenerated result files stay minimal and correct.

pingcap/tidb

Checks that ReasoningConfig fields are serialized into the right provider-specific JSON for OpenRouter, Anthropic, GitHub Copilot and Codex requests.

tailcallhq/forgecode

Skill for testing Obsidian plugin features in this repository.

polyipseity/obsidian-terminal

Write and run E2E (end-to-end) game tests using the godot-e2e framework.

RandallLiuXin/GodotMaker

Step-by-step guide to writing the mandatory integration tests for syncable metadata entities in Twenty's server, covering failures and CRUD success cases.

twentyhq/twenty

Tests interactive CLI and TUI programs with Microsoft's tui-test, driving prompts, arrow keys and screen output in a real pseudo-terminal.

slopus/happy

Use when running tests under tests/realtikvtest that require a local TiUP playground lifecycle with strict startup, readiness checks, and cleanup.

pingcap/tidb

Write integration tests using .NET Aspire's testing facilities with xUnit.

DevBetterCom/DevBetterWeb

A skill your agent uses when building or modifying a Go application that uses cirello.io/pglock for PostgreSQL-backed distributed locks, per-resource mutual exclusion, leader election, leases…

cirello-io/pglock

Author a new Cartography intel module end-to-end (entry point, sync GET/TRANSFORM/LOAD/CLEANUP, declarative data model, integration test, schema docs).

cartography-cncf/cartography

A skill your agent uses when refreshing GMavenPlus Groovy support, Maven dependency and plugin versions, and integration-test POM versions.

groovy/GMavenPlus

Write and maintain Rust CLI/integration tests with snapbox 0.6+ using command assertions, inline snapshots, and minimal wildcard/redaction patterns.

moonbitlang/moon

Maintain test and documentation alignment — PHPUnit tests, async testing patterns, PHPDoc contracts, guide pages, and documentation workflow.

discord-php/DiscordPHP

Write integration tests for the td-sync admin API using the TestHarness in internal/api/testharnesstest.go.

marcus/td

Designs and implements testing strategies for any codebase. An agent skill from CloudAI-X/claude-workflow-v2.

CloudAI-X/claude-workflow-v2

Generate Vitest + React Testing Library tests for Dify frontend components, hooks, and utilities.

Ohh-889/skyroc

Validate Con's local socket control plane against a real running app session, and write/run con-test integration tests.

nowledge-co/con-terminal

Add or extend Redis commands in the Jedis client API — a new core command, a family of new commands, an extension to an existing command's options, or a module command (Search/TimeSeries/JSON/Bloom).

redis/jedis

Replay recorded agent conversations as Playwright tests against the real chat panel and canvas.

Comfy-Org/ComfyUI_frontend

A skill your agent uses when adding support for a new model to VeOmni.

ByteDance-Seed/VeOmni

Step-by-step runbook for creating, extending, and verifying integration tests in the GCSFuse repository.

GoogleCloudPlatform/gcsfuse

Integration and E2E test design principles, ROI calculation, test skeleton specification, and review criteria.

shinpr/claude-code-workflows

Architecture-aware feature scaffolding for .NET 10 projects.

codewithmukesh/dotnet-claude-kit

Write Jest integration and unit tests for the Grafana Synthetic Monitoring app using React Testing Library, MSW, and src/test helpers.

grafana/synthetic-monitoring-app

A skill your agent uses when creating, writing, fixing, or reviewing tests in a Flutter project.

FNOSP/FlyNarwhal

Tests JavaScript embedded in an HTML file in two layers: pytest checks of the logic ported to Python, and Playwright runs in a real browser for the DOM.

liaohch3/claude-tap