Conciseness

The body is dense with domain-specific framing Claude would not generate on its own (tiers, axes, scoring rules) and wastes no tokens on general-knowledge explanation. The main trimmable redundancy is that 'Selection criteria' and 'Player taxonomy — axes to populate across' substantially restate the same axes (size/model, specialization, market, brand strength) — a 3 would require broader unnecessary explanation, but the duplication is confined to two sections while everything else earns its place, so 4 fits best.

Actionability

For an instruction-only skill, the guidance is fully executable: a copy-paste-ready scoring matrix template with named columns and a 1–5 scale, explicit rules of thumb for each score combination, a gated interview step with the exact fields to elicit, and a complete worked example covering the common case end-to-end. The 5 anchor's 'specific examples cover the common cases' is met by the five-candidate worked example; a 4 would imply minor gaps, and none are evident.

Workflow Clarity

The sequence is clear and ordered by the section structure — establish the positioning brief, capture selection criteria, populate the eight axes, resolve tiers, apply the pre-filter matrix, hand off to benchmark-methodology — with real validation checkpoints ('Do not proceed without the positioning brief', 'verify claims across at least two sources'). It falls short of a 5 because the ordering is implied by section layout rather than stated as an explicit numbered workflow, and there is no error-recovery loop; the destructive/batch cap does not apply (analysis-only skill), so 4's 'clear sequence with most checkpoints, minor validation gaps' is the best fit.

Progressive Disclosure

No bundle files exist (no references/, scripts/, or assets/), so all content is necessarily inline in a single well-sectioned file; the only external pointers are to sibling skills (brand-discovery, benchmark-methodology), which is appropriate. Structure and navigation are good. At ~200 lines it exceeds the under-50-line simple-skill case, and content that could plausibly live in a reference file (the worked Examples section, the full scoring matrix) is inlined — a minor organization gap rather than the 'content that clearly belongs in separate files' of the lower anchors, so 4 fits best.

Specificity

The description lists multiple concrete actions covering the skill's full scope: 'identifying, categorising, and score-filtering a competitor set', 'Decides who counts as a competitor, which tier they belong to, and which sources to mine'. These are specific, non-abstract actions with comprehensive coverage of what the skill does; a 4 would require minor gaps, and none are evident.

Completeness

Both halves are explicit: what ('identifying, categorising, and score-filtering a competitor set... Decides who counts as a competitor, which tier they belong to, and which sources to mine') and when ('Use when scoping a competitive landscape... before any benchmarking begins'). This matches the anchor for a clear what AND when with concrete trigger phrasing.

Trigger Term Quality

Natural trigger terms like 'competitive landscape', 'competitor set', and 'benchmarking' are phrases a user would plausibly say. A few common variants are missing (e.g. 'competitor analysis', 'market landscape'), which keeps it at 4 rather than the comprehensive synonym coverage of a 5.

Distinctiveness Conflict Risk

The niche is clear and the description even positions it in a pipeline ('First step in the three-skill competitive pipeline; precedes benchmark-methodology'), which reduces conflict risk. However, terms like 'competitive landscape' could plausibly also trigger a sibling benchmarking skill, so it is mostly distinct with minor overlap risk rather than minimal.