Conciseness

The body is structurally lean (short bullets, no padded prose), but Steps 2–4 largely enumerate marketing taxonomies Claude already knows — e.g., "Digital marketing channels (paid search, social media, display)" and "Engagement metrics (CTR, cost per engagement, time on site)" — which adds context-window cost without new information. This is 'mostly efficient but includes some unnecessary explanation', the 3 anchor, rather than the 4 anchor's 'minor instances'.

Actionability

The 5-step process, $ARGUMENTS input list, and output specification give real structure, but the guidance stays at the checklist level with no concrete example of the deliverable — no sample messaging format, no KPI target template, no skeleton of the strategy document. This matches the 3 anchor ('some concrete guidance but incomplete; missing key details') rather than the 4 anchor's mostly-executable guidance.

Workflow Clarity

The five steps are clearly sequenced (gather research → channels → messaging → metrics → launch plan), but validation checkpoints are implicit at best: assumptions-validation and feedback loops appear only in the Tips section ("Validate assumptions through customer interviews before full launch", "Plan for feedback loops") rather than as explicit checkpoints inside the workflow. This fits the 3 anchor ('sequence present but checkpoints missing or implicit') below the 4 anchor's 'most checkpoints present'.

Progressive Disclosure

The ~90-line body is well organized with clear Overview / When to Use / steps / Input / Output / Tips sections and a clearly signaled one-level-deep Further Reading list; there are no nested or buried references. It misses the 5 anchor partly because the under-50-line exception doesn't apply and some of the channel/messaging/metric detail could arguably live in a reference file, though nothing is severely misplaced.

Specificity

The description names the domain and several concrete deliverables — "covering marketing channels, messaging, success metrics, and launch timeline" — which lists several specific outputs, but it uses a single verb ("Create") so it stops just short of the multi-action comprehensiveness of the 5 anchor (e.g., "Extract text... fill forms, merge documents, convert pages"). It clearly exceeds the 3 anchor ('1-2 concrete actions, not comprehensive').

Completeness

It explicitly answers both questions: the "what" ("Create a go-to-market strategy covering marketing channels, messaging, success metrics, and launch timeline") and an explicit "Use when..." clause with three concrete trigger scenarios. This matches the 5 anchor directly; the 4 anchor requires a 'when' that 'could be more explicit or specific', which does not apply here.

Trigger Term Quality

"Use when planning a product launch, creating a GTM plan from scratch, or defining a launch strategy for a new market" gives good natural trigger phrases including the key acronym "GTM", but misses common synonyms such as "go-to-market plan", "launch plan", or "market entry" that users might say. This sits above the 3 anchor (relevant keywords but missing variations) and just below the 5 anchor (comprehensive synonyms/extensions).

Distinctiveness Conflict Risk

Go-to-market strategy with "GTM plan" and "launch strategy" triggers forms a clear niche, but "planning a product launch" has minor overlap risk with closely related skills (e.g., launch announcements, release planning, marketing plans). This fits the 4 anchor ('mostly distinct; minor overlap risk') better than the 5 anchor's 'minimal conflict risk'.