This skill should be used when the user asks to "set up Buildkite Cache", "cache dependencies between builds", "speed up builds with caching", "write a .buildkite/cache.yml", "configure cache keys", "add cache fallbacks", or "save and restore caches in a Buildkite job". Also use when the user mentions buildkite-agent cache save, buildkite-agent cache restore, .buildkite/cache.yml, cache_key, target_paths, fallback_limit, checksum cache keys, cache registries, or BUILDKITE_AGENT_CACHE_STORE_URL.
