Conciseness

The body is dense and mostly earns its tokens: a category quick-reference table, a fixed output format, and a question list, with no padding explaining concepts Claude already knows. Minor redundancy keeps it below anchor 5 — idea lists repeat across 'By Stage,' 'By Budget,' 'By Timeline,' and 'Top Ideas by Use Case' (e.g., Content & SEO and Reddit Marketing appear in multiple lists), and these could be consolidated or trimmed.

Actionability

Concrete, executable guidance for an instruction-only skill: a numbered intake workflow ('Ask about their product, audience, and current stage,' 'Suggest 3-5 most relevant ideas'), a per-idea output template (Idea name / why it fits / how to start / expected outcome / resources needed), specific follow-up questions, and idea-number pointers. It falls short of anchor 5 because 'Provide details on implementation for chosen ideas' is underspecified — implementation depth is left to the one-line descriptions in the reference file.

Workflow Clarity

A clear sequence is present: check '.claude/product-marketing.md' first (including the legacy filename), then ask, suggest 3-5 ideas, detail chosen ideas, and factor in resources. The context-check is an explicit conditional checkpoint. Minor gaps remain — step 4 ('Consider their resources') logically belongs before suggesting ideas, and there is no guidance on what to do when the user's answers are still ambiguous — so it sits at anchor 4 rather than 5. No validation cap applies since this is advisory, not destructive or batch.

Progressive Disclosure

SKILL.md is a genuine overview/index: the full 139-idea catalog with descriptions lives one level deep in references/ideas-by-category.md (which exists as a real file, is self-contained, and references no further files), clearly signaled via 'For the complete list with descriptions: See [references/ideas-by-category.md]'. The inline stage/budget/use-case lists act as a selection index keyed by idea numbers, and a Related Skills section aids navigation — an appropriately split, easy-to-navigate structure.

Specificity

The description names the domain ("marketing ideas, inspiration, or strategies for their SaaS or software product") but the only concrete actions are supplying ideas/inspiration/strategies as "a starting point" — one generalized capability rather than several specific actions. It is above anchor 2 (which names the domain with only generic actions) because ideation/brainstorming/strategy suggestion is a distinct concrete offering, but below anchor 4, which expects several specific listed actions.

Completeness

Both 'what' and 'when' are present: 'when' is explicit and rich (multiple 'use when' clauses and trigger phrases), and the 'what' (source of marketing ideas and inspiration for SaaS growth) is conveyed but only indirectly — the description is built entirely from 'when' clauses and never states a capability with an explicit verb (e.g., 'Provides marketing ideas...'). It exceeds anchor 3 (where 'when' is missing or weakly implied) but falls short of anchor 5, which expects both what and when explicitly stated.

Trigger Term Quality

Trigger coverage is comprehensive and natural: 'marketing ideas,' 'growth ideas,' 'how to market,' 'marketing strategies,' 'marketing tactics,' 'ways to promote,' 'ideas to grow,' 'brainstorm marketing,' plus stuck-user phrasings like 'what else can I try' and 'I don't know how to market this.' These are phrases a user would genuinely say, including synonyms and indirect framings, matching the anchor-5 example's breadth.

Distinctiveness Conflict Risk

The niche is clearly carved: ideation/inspiration for SaaS growth, with an explicit boundary — 'For specific channel execution, see the relevant skill (ads, social, emails, etc.)' — that steers execution requests elsewhere. Trigger phrases are specific to brainstorming rather than execution, so conflict risk with channel or planning skills is minimal.