By testland
Cache testing across layers: Redis cache patterns, CDN cache-purge testing (Cloudflare, Fastly, CloudFront), Varnish VTC syntax, browser Cache-Control tests, cache-coherence + stampede + stale-while-revalidate references, and a cache-key collision detector. Covers RFC 9111 HTTP caching and the canonical multi-tier cache discipline (browser to CDN to app to data store).
Wraps browser-side Cache-Control testing patterns using Playwright (and Cypress for legacy stacks): verifying response Cache-Control headers from Network events, asserting ETag round-trips (request includes If-None-Match → server returns 304), testing service-worker cache strategies (Workbox cacheFirst / networkFirst / staleWhileRevalidate), and verifying browser cache behavior under reload (normal reload vs hard reload semantics). Covers MDN's Cache-Control semantics + RFC 9111. Use when designing browser-cache-respecting endpoints or auditing caching behaviour in E2E tests.
Pure-reference catalog of cache-coherence patterns across the request path. Covers the canonical RFC 9111 directives (Cache-Control: max-age, s-maxage, no-cache, no-store, must-revalidate, private/public, immutable; Vary for key derivation; ETag + If-None-Match revalidation), the layered-cache discipline (browser → CDN → reverse-proxy → application → data store), per-tier coherence patterns (write-through, write-back, write-around, cache-aside), and the canonical invalidation strategies (TTL-only, event-driven purge, surrogate keys, version-tagged keys). Use as the cache-design reference when picking patterns or auditing an existing setup. Consumed by redis-cache-tests, cdn-cache-purge-tests, varnish-test-vtc-syntax, browser-cache-control-tests, cache-key-collision-detector.
Pure-reference catalog of cache-stampede (thundering-herd) phenomena and mitigations. Defines the stampede (massively-parallel cache misses on key expiry trigger simultaneous recomputation, often congestion-collapse) and the three canonical mitigation families: locking (one writer recomputes, others wait or serve stale), external recomputation (a separate process refreshes on schedule or near-expiry), and probabilistic early expiration via XFetch (each requester independently decides to refresh with probability rising toward expiry; uses formula `(time() - delta * beta * log(rand(0,1))) >= expiry`). Use when designing cache-refresh strategy or diagnosing a known stampede incident. Composes cache-coherence-patterns-reference + stale-while-revalidate-reference.
Wraps CDN cache-purge testing patterns for Cloudflare (POST /zones/{zone_id}/purge_cache, single-file / everything / cache-tags / hostname / prefix), Fastly (POST purge-by-key / purge-all, surrogate-keys via Surrogate-Key header), and CloudFront (CreateInvalidation API + paths). Covers end-to-end test patterns (write origin → trigger purge → assert edge serves fresh), purge-propagation delay testing (typically 1-30s globally), surrogate-key + cache-tag patterns for group-purge, and Cache-Status header verification (cf-cache-status: HIT/MISS/BYPASS). Use when designing or auditing CDN cache-invalidation workflows.
Wraps Memcached cache testing patterns: text and binary protocol command verification (set/get/add/cas/incr/decr), TTL semantics (0=never-expire, 30-day Unix-timestamp boundary), no-persistence and LRU eviction under memory pressure, consistent-hashing client key distribution across nodes, and AWS ElastiCache Memcached Auto Discovery endpoint testing. Use when writing tests for an application that uses Memcached as its primary cache, when verifying ElastiCache Memcached cluster behaviour, or when contrasting Memcached eviction and distribution semantics against Redis.
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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-cache-testingVisual 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 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.
A growing collection of Claude-compatible academic workflow bundles. Covers scientific figures, manuscript writing and polishing, reviewer assessment, citation retrieval, data availability, paper reading, literature search, response letters, paper-to-PPTX conversion, and evidence-grounded Chinese invention patent drafting. Rules are organized as reusable skill folders with explicit workflows and quality checks.
Develop, test, build, and deploy Godot 4.x games with Claude Code. Includes GdUnit4 testing, web/desktop exports, CI/CD pipelines, and deployment to Vercel/GitHub Pages/itch.io.
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.