By testland
Notifications + messaging testing: 6 skills (mailpit-testing, mailhog-testing, email-flow-test-author, sms-test-author, push-notification-test-author, webhook-delivery-tester).
Build-an-X for end-to-end email-flow tests - trigger → SMTP capture (via Mailpit / MailHog) → header assertions (DKIM/SPF/DMARC when relayed via real MTA) → body assertions (HTML + plain-text alternative) → link-rewrite + tracking-pixel handling → unsubscribe-link verification → bounce + complaint testing in non-prod (via Mailtrap-style services). Use when authoring tests for any transactional or marketing email flow regardless of the SMTP capture tool.
Build-an-X workflow for testing real-time in-app notifications delivered over WebSocket (RFC 6455) or Server-Sent Events (WHATWG SSE spec), Firebase Realtime Database / Firestore listeners, and notification center read/unread state - covers fan-out to multiple sessions, offline-then-reconnect delivery, and ordering guarantees. Distinct from email, SMS, push, and webhook channels. Use when authoring tests for any notification that appears inside a connected web or mobile app UI without leaving the application.
Configures and runs MailHog - legacy dev mailbox preceding Mailpit; SMTP `1025` + HTTP UI `8025`; Go-based single binary or Docker; APIv2 (`/api/v2/messages`, `/api/v2/search`); Jim chaos-monkey toggle for failure injection. Use when the user maintains an existing MailHog setup; for new projects prefer [`mailpit-testing`](../mailpit-testing/SKILL.md) (richer API, active maintenance). Migration path documented in body.
Configures and runs Mailpit - modern dev-mailbox server for SMTP testing with built-in REST API for assertions; default SMTP `1025` + Web UI `8025`; ships single static binary or multi-architecture Docker images; features Chaos mode (configurable SMTP errors for resilience testing), message tagging (manual + auto via filters and plus-addressing), search filters. Use when the user develops email-sending code locally / in CI and needs SMTP capture with programmatic test assertions, or when migrating from MailHog (which Mailpit succeeds).
Build-an-X for push-notification tests across Web Push (RFC 8030 / VAPID), Apple Push Notification Service (APNs), and Firebase Cloud Messaging (FCM) - covers subscription handshake, payload encryption, badge / sound / click-action assertions, expired-subscription handling, silent-vs-alert push, topic-vs-targeted routing. Use when authoring tests for any push-notification flow.
Uses power tools
Uses Bash, Write, or Edit tools
Own this plugin?
Verify ownership to unlock analytics, metadata editing, and a verified badge. GitHub access is read-only (username + org membership).
Sign in to claimOwn this plugin?
Verify ownership to unlock analytics, metadata editing, and a verified badge. GitHub access is read-only (username + org membership).
Sign in to claimBased on adoption, maintenance, documentation, and repository signals. Not a security audit or endorsement.
A rigorously curated quality-engineering plugin marketplace for Claude Code. 77 plugins, 695 components, every one rating-gated before merge.
d6 floordocs/REVIEWER_TRAINING.mdSee Quality bar and docs/REVIEWER_CHECKLIST.md.
The marketplace ships three kinds of building block:
qa-api-testing, qa-load-testing). You install only the plugins your
stack needs.great-expectations,
oauth-flow-test-author). Claude loads a skill when your request matches
its trigger; you can also ask for it by name.schema-diff-reviewer reviews a migration diff and returns a findings
table). An agent may preload one or more skills to do its work.Installed components stay dormant until a matching task comes up, so adding a plugin doesn't add noise — it adds capability that activates on demand.
/plugin marketplace add testland/qa
/plugin install <plugin-name>@testland-qa
For example:
/plugin install qa-data-quality@testland-qa
/plugin marketplace add https://github.com/testland/qa
git clone https://github.com/testland/qa ~/.claude/marketplaces/testland-qa
Before you install: plugins run inside your Claude Code session and ship agent instructions and tool wrappers. Anthropic doesn't vet marketplace contents — review a plugin's components before installing it into a sensitive project. Every component here is rating-gated (see Quality bar), but you remain in control of what runs.
New to the marketplace? Install one or two plugins for your role rather than everything — components activate on demand, so a focused set keeps things sharp.
| If you're a… | Try first |
|---|---|
| Manual / exploratory tester | qa-manual-testing · qa-bdd · qa-bug-repro |
| Test automation engineer | qa-web-e2e · qa-api-testing · qa-unit-tests-js |
| Performance engineer | qa-load-testing · qa-chaos-resilience |
| Security tester | qa-sast · qa-secrets · qa-dast |
| Lead / manager / head of quality | qa-roles · qa-test-management · qa-process |
The full catalog is below; for versions and component counts see
CATALOG.md.
Once a plugin is installed, its skills and agents are available to Claude
Code — invoke them by describing the task in plain language. Example with
qa-data-quality:
/plugin install qa-data-quality@testland-qa
great-expectations skill scaffolds an ExpectationSuite + Checkpoint and
wires the results into a CI gate.schema-diff-reviewer agent returns a Critical / Warning / Info findings
table covering breaking-vs-additive changes and downstream impact.Each plugin's README.md lists its skills and agents and what each one does.
npx claudepluginhub testland/qa --plugin qa-notificationsVisual regression testing: 7 skills (percy-visual-regression-testing, chromatic-visual-regression-testing, playwright-snapshots, storybook-visual-regression-testing, responsive-breakpoint-runner, visual-baseline-conventions, visual-baseline-gate) and 2 agents (visual-diff-classifier, visual-baseline-curator).
Contract testing for microservices: 5 skills (pact-contract-testing, openapi-contract-diff, graphql-schema-regression, protobuf-compat-checking, contract-compatibility-gate) and 2 agents (contract-drift-investigator, contract-test-scaffolder).
Flake triage: 2 skills (flaky-test-quarantine, flake-pattern-reference) and 5 agents (e2e-flake-bisector, parallel-isolation-checker, regression-bisector, ai-flake-detector, e2e-test-trend-reporter).
Bug reproduction workflow: 1 skill (bug-report-template) and 8 agents (bug-report-from-recording, bug-repro-builder, crash-stack-trace-analyzer, defect-clusterer, defect-trend-narrator, escape-defect-analyzer, failure-classifier, test-failure-debugger).
Data quality testing for analytical pipelines: 5 skills (dbt-testing, great-expectations, soda-checks, data-quality-gate, data-quality-conventions) and 2 agents (schema-diff-reviewer, data-anomaly-triager).
Comprehensive .NET development skills for modern C#, ASP.NET, MAUI, Blazor, Aspire, EF Core, Native AOT, testing, security, performance optimization, CI/CD, and cloud-native applications
Complete collection of battle-tested Claude Code configs from an Anthropic hackathon winner - agents, skills, hooks, and rules evolved over 10+ months of intensive daily use
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
Unity Development Toolkit - Expert agents for scripting/refactoring/optimization, script templates, and Agent Skills for Unity C# development
Harness-native ECC operator layer - 67 agents, 271 skills, 92 legacy command shims, reusable hooks, rules, selective install profiles, and production-ready workflows for Claude Code, Codex, OpenCode, Cursor, and related agent harnesses
Binary reverse engineering, malware analysis, firmware security, and software protection research for authorized security research, CTF competitions, and defensive security