Conciseness

The body is dense with normative instruction and never explains concepts Claude already knows, but there is real redundancy: source-ownership rules appear in 'Key Dependency Categories' ("CRM for account identity...", "Knowledge & Files for ICP definitions..."), again in 'Overall Rules' ("CRM owns internal account truth... use Sales Intelligence for... use Knowledge & Files for..."), and the citation rule is stated twice ("Cite sourced claims with hyperlinks" vs the field-level source-link requirements). This is more than the trivial trim of the level-5 anchor but still efficient, fitting level 4.

Actionability

For an instruction-only skill the guidance is fully actionable: a six-level enrichment priority order, mode-selection conditions ('Use when the user supplies companies, contacts, domains, emails, rows, a CSV/export...'), concrete recovery paths ('make at most two narrow source calls... then ask the user to choose'), and three copy-ready output templates with exact table columns. Specific examples cover the common cases, matching the level-5 anchor; there is no vague 'process as needed' direction.

Workflow Clarity

The stages that are written are clearly sequenced with checkpoints — hard-filter verification before qualification ('Verify hard filters before calling a row qualified'), ambiguity handling, and a mandatory 'Sources & Coverage' output section. However, the full workflow is explicitly external ('These enrichment-specific steps modify the corresponding default workflow stages in the index skill. Continue the remaining default stages'), so the complete sequence and several checkpoints are not self-contained here — a minor gap that fits level 4 rather than the fully explicit level 5.

Progressive Disclosure

Structure is good: mode sections with inline output templates, and clearly signaled one-level-deep references to the index skill ('[Limitations and Improvements](../index/SKILL.md#limitations-and-improvements)') and sibling skills (`zoominfo`, `apollo`, `prioritize-accounts`). Minor organization gaps keep it at level 4: the link 'plugins/sales/skills/index/SKILL.md## Cross-Skill Best Practices' is malformed (double hash), and the shared default stages delegated to the external index skill are not summarized, so navigation depends on a file outside this bundle.

Specificity

The description lists many concrete, specific actions — "discovery or enrichment", "firmographic or technographic completion", "named-company profiling", "entity resolution", "ICP matching", "prospect-list building", "segmentation", "trigger or sales-signal analysis", "market and territory scans" — matching the anchor for multiple specific concrete actions with comprehensive coverage. No vague or padded language; nothing fits the level-4 'minor gaps' example since the action coverage is broad and each item is a distinct capability.

Completeness

It explicitly answers both what (data-first discovery/enrichment with an enumerated task list) and when ("Use for data-first company, contact, lead, and prospect discovery or enrichment...") with concrete trigger phrases. It even adds explicit boundary guidance ("Exclude meeting preparation, outreach-led company research, and prioritization of an already established account book"), exceeding the level-4 anchor where 'when' could be more specific.

Trigger Term Quality

Natural user phrasing is comprehensively covered with abundant synonyms: "company, contact, lead, and prospect", "discovery or enrichment", "ICP matching", "prospect-list building", "segmentation", "market and territory scans". This matches the level-5 anchor (comprehensive natural terms including synonyms); level 4 ('a few natural terms missing') undersells the synonym density present here.

Distinctiveness Conflict Risk

It carves a clear data-first niche and proactively disambiguates sibling skills via the exclusion clause ("Exclude meeting preparation, outreach-led company research, and prioritization of an already established account book"), which directly answers 'would this trigger for the wrong skill?' with minimal conflict risk. Level 4 ('minor overlap risk') does not apply because the exclusions make the boundaries explicit.