Mostly efficient and dense, but the Overview restates gRPC streaming fundamentals Claude already knows ('gRPC defines four streaming patterns...', 'Streaming RPCs are where clients and servers most often diverge...'), fitting the 'mostly efficient but includes some unnecessary explanation' anchor rather than a fully lean 3.

Provides executable Python test code, a concrete per-RPC coverage matrix, a file layout, and a per-language harness table — copy-paste-ready guidance matching the 'fully executable code/commands' anchor.

Steps 1–5 are clearly sequenced and Step 3's coverage matrix acts as an explicit validation checkpoint ('Empty cells... = coverage gap. PR must justify or add a test'), satisfying the clear-sequence-with-checkpoints anchor.

The body keeps representative inline examples and delegates Go skeletons to the verified real reference references/test-skeletons.md, signaled one level deep and well organized, matching the clear-overview-with-one-level-deep-references anchor.

Lists multiple concrete actions — classifies RPCs by pattern, emits per-pattern test categories, and produces language-specific skeletons for Go/Python/JVM/Node — matching the 'lists multiple specific concrete actions' anchor.

Explicitly answers both what (builds suites, classifies, emits categories, skeletons) and when via an explicit 'Use when' clause, hitting the 'clearly answers both what AND when' anchor.

The 'Use when adding tests for a new streaming RPC or auditing a suite for uncovered categories' clause uses natural domain phrasing a user would say ('streaming RPC', 'test suite', 'auditing'), matching good trigger coverage.

Explicitly disambiguates from grpc-interceptor-test-author, grpc-mock, and grpc-streaming-tests ('not this'), establishing a clear niche unlikely to trigger the wrong skill.