kafka-zig

Mock broker test harness conventions for kafka-zig. Use when writing or editing tests that use the mock broker (src/testing/mock_broker.zig), Ring tests, or Client integration tests. Covers the async connect/auth timing gotcha, pointer returns, and the load-shed test pattern.

Pinned Kafka wire-protocol reference for kafka-zig. Use when writing or reviewing Kafka protocol codec code (src/wire/**), record batch encoding, SCRAM-over-SASL auth, or anything touching API keys/versions. Critical: LLM training data for the Kafka protocol is frequently wrong on API keys, version numbers, field order, and flexible-version encoding. Always verify against https://kafka.apache.org/protocol.html before encoding. This skill holds the pinned values and the known gotchas so they don't get re-derived (or re-guessed) every time.