claude

qa-cache-testing

Cache testing across browser, CDN, proxy, application and data-store layers: Redis, CDN purges, Varnish VTC tests, and cache-key collision audits. Covers RFC 9111 HTTP caching, Cloudflare / Fastly / CloudFront purge APIs, browser Cache-Control tests, and cache-coherence patterns with stampede and stale-while-revalidate references. A detector agent (cache-key-collision-detector) finds keys missing a tenant, user or locale discriminator.

13 on GitHubby testlandv1.4.3MITupdated yesterdaybackend-distributed
/

Plugin qa-cache-testing from marketplace testland-qa in testland/qa. Commands read from the repo's manifest — today.

What it installs

Skills (4)

  • cache-key-discriminator-audit

    Use whenever a user saw another user's or tenant's data, or a per-user response goes through a shared cache, Redis or a CDN, or a cache key is designed or changed. Checks the key holds every value the response depends on (tenant, user, scope, locale), writes the fixed key, Vary header and tests.

  • cdn-cache-purge-tests

    Use when CDN or browser caching needs tests: purges and invalidations on Cloudflare, Fastly (surrogate keys) and CloudFront, end-to-end write, purge and fresh-read checks, propagation delay and cache-status headers, plus browser Cache-Control, ETag and service-worker caching with Playwright.

  • redis-cache-tests

    Use when Redis is the app's cache and its behavior needs tests, or when choosing a cache invalidation strategy: TTLs, cache-aside write and invalidate, eviction under memory pressure, pub/sub invalidation across nodes and tenant key namespaces, plus stampede and stale-while-revalidate patterns.

  • varnish-test-vtc-syntax

    Use when a Varnish caching layer or VCL change needs tests: varnishtest VTC files with server, client and varnish blocks, grace and saint modes, PURGE handlers with ACLs, and surrogate-key invalidation with the xkey vmod.

Subagents (1)

  • cache-key-collision-detector

    Use proactively whenever a PR touches cache.set, cache.get or memoization, or one user sees another user's data. Finds cache keys missing tenant, user, locale or region scoping, missing Vary headers on CDN responses, and keys that hash differently across browser, CDN and Redis tiers.

View source on GitHub testland.io

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