Conciseness

The body is short and mostly lean, but the 'Core Concepts' section spends lines on an ASCII architecture diagram (Event Store -> Projector -> Read Model) and a Live/Catchup/Persistent/Inline type taxonomy that Claude already knows from CQRS/event-sourcing knowledge. That is unnecessary explanation that could be tightened, matching anchor 3; it is above anchor 2 because padding is limited to this one section.

Actionability

The body contains no executable code or commands — the do's/don'ts ('Make projections idempotent', 'Store checkpoints') are high-level directives, and all concrete material is delegated to references/details.md. Per the rubric's code_vs_instruction note, absence of code is not penalized per se, but the inline guidance itself lacks specific steps or concrete examples (e.g. how to store a checkpoint), placing it between anchors 2 and 3; the verified pointer to a real, code-rich details.md keeps it at 3 rather than 2.

Workflow Clarity

There is no operational sequence for actually building a projection (e.g. choose type -> implement handler -> persist checkpoint -> verify idempotent replay); the body reads as concepts -> external templates -> best practices rather than steps. Projection building/replay is a batch database operation with no validation or feedback loop described, which caps this dimension at 3 per the rubric; it is above anchor 2 because the section order and the do's/don'ts do convey a rough reading path.

Progressive Disclosure

The body is a genuine overview: it stays lean and offloads the full template library to a single, well-signaled, one-level-deep reference ('Full template library and detailed worked examples live in references/details.md. Read that file when you need the concrete templates.'), and references/details.md actually exists with five concrete code templates. This matches anchor 5 — clear overview, appropriately split content, easy navigation — with no nesting or buried references.

Specificity

The 'what' clause names the domain and exactly two concrete actions — 'Build read models and projections from event streams' — matching the anchor for 1-2 concrete actions without being comprehensive (no mention of checkpointing, rebuild, or denormalization in the what-clause). It is below anchor 4 because several specific actions are not listed in the capability statement itself.

Completeness

It clearly answers both questions: 'Build read models and projections from event streams' (what) and an explicit 'Use when implementing CQRS read sides, building materialized views, or optimizing query performance in event-sourced systems' (when) with concrete trigger phrases. This mirrors the anchor-5 example structure directly; it is not anchor 4 because the when-clause is already explicit and specific, not merely present.

Trigger Term Quality

Strong natural phrases practitioners actually say — 'CQRS read sides', 'materialized views', 'event-sourced systems', 'query performance', 'projections', 'read models'. It falls short of anchor 5 because common variations like 'event sourcing' as a bare phrase, 'event-driven', 'denormalized views', or 'rebuilding projections' are missing.

Distinctiveness Conflict Risk

The niche is clear (event-sourced/CQRS projections) with mostly distinct triggers, but 'optimizing query performance' is a broad phrase that would also fire for ordinary (non-event-sourced) query optimization requests — minor overlap risk with general database/performance skills. It is not anchor 5 due to that overlap risk, and well above anchor 3 because the other triggers are highly specific to this domain.