By testland
Saga + CQRS + event sourcing test patterns: 4 skills (saga-transaction-tests, event-sourcing-tests, cqrs-projection-tests, eventual-consistency-tests). Covers ACD-without-isolation saga tests, replay determinism, and projection consistency windows.
Build CQRS read-model projection tests - write-model + read-model consistency tests, projection-replay determinism, projection-versioning + zero-downtime swap, eventual-consistency-window assertions. Per martinfowler.com CQRS reference.
Build event-sourcing tests - aggregate root replay determinism (same events ⇒ same state), event-versioning + upcasting, snapshot equivalence (replay-to-N vs snapshot-at-N must agree), projection rebuild from event log, retroactive event correction. Per martinfowler.com EventSourcing reference.
Build eventual-consistency tests - convergence-window assertions ("within 5s"), monotonic-read tests, anti-entropy tests, conflict-resolution rules tests (CRDT-merge / LWW / vector clocks). Distinguishes "eventually" from "never" by asserting bounded convergence; pair with qa-saga-cqrs for saga + CQRS workloads.
Authors tests for the transactional outbox pattern: atomic DB-write-plus-event-insert in one transaction, relay/poller publishing with at-least-once delivery and consumer deduplication, insertion-order preservation, idempotent consumers, and relay failure/retry. Use when adding outbox infrastructure, changing the relay or poller, or auditing whether dual-write atomicity and at-least-once delivery guarantees hold under failure.
Build saga transaction tests - orchestration vs choreography variants, per-step compensating-action verification, partial-failure scenarios (Step 3 fails → Steps 1+2 must compensate), idempotency of compensations, outbox pattern for atomic DB-update + message-publish. Per microservices.io/saga; tests guard against ACD-without-Isolation anomalies.
Uses power tools
Uses Bash, Write, or Edit tools
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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-saga-cqrsVisual 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).
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