Conciseness

The ~2,570-line body extensively teaches concepts Claude already knows — "Redis (Remote Dictionary Server) is an in-memory data structure store", per-type tutorials for strings/hashes/lists/sets, RDB-vs-AOF persistence primers, and "Redis connections are expensive to create". This is a textbook-style wall of padding, squarely matching anchor 1.

Actionability

Nearly every section ships concrete, runnable redis-py code with docstrings and usage examples (SessionManager, RedisLock with Lua release, rate limiter, leaderboards). It falls short of anchor 5 due to undefined placeholders (database, compute_value, process_event) and real defects — JobQueue.complete() re-serializes without the 'attempts' key so zrem never matches the stored JSON, and find_items_with_all_tags builds identical 'item:*:tags' keys — leaving it at anchor 4's "minor gaps".

Workflow Clarity

The body is a well-organized pattern catalog with a "When to Use This Skill" section, but there is no sequenced multi-step workflow and no validation checkpoints or feedback loops anywhere (no verify step after cache invalidation, no lock-acquisition failure path beyond ad-hoc sleeps). This matches anchor 3 — structure present, checkpoints missing — rather than 2, since each pattern is internally coherent.

Progressive Disclosure

No bundle files exist; everything — Redis fundamentals, seven full example classes, an operations quick-reference, a time-complexity table — is inlined into a single monolithic file. Content that clearly belongs in separate reference files is inlined (anchor 2), though headers keep it above anchor 1's structureless wall of text.

Specificity

The description enumerates five concrete areas ("caching strategies, session management, pub/sub patterns, distributed locks, and data structures") but frames them as topics of a "guide" rather than actions, and omits covered areas like rate limiting, streams, and geo-queries. It lists several specific items with minor gaps (anchor 4), falling short of anchor 5's comprehensive action-verb coverage.

Completeness

The "what" is clear (a guide covering five named Redis areas), but there is no "Use when..." clause or equivalent trigger guidance, which per the judging guidelines caps completeness at 3. It is not 4 because the "when" is entirely absent rather than merely implicit, and not 2 because the "what" is explicit and specific.

Trigger Term Quality

It includes natural terms users would say — "Redis", "caching", "session management", "pub/sub", "distributed locks", "state management" — but misses common variations and synonyms such as "key-value store", "rate limiting", or "Redis cluster". Good coverage with a few natural terms missing fits anchor 4, above anchor 3's partial keyword set.

Distinctiveness Conflict Risk

Every clause is explicitly scoped to Redis ("Redis state management", "pub/sub patterns, distributed locks"), giving it a clear niche with distinct triggers and minimal conflict risk, matching anchor 5. The generic words "caching" and "session management" create only trivial overlap with broader skills, insufficient to drop to anchor 4.