Conciseness

Lean and dense throughout: every section is an opinionated convention statement ("Don't mint a parallel *-ee suffix", "The cost of moving later is the cost of every import") rather than explanation of concepts Claude already knows. The one framing paragraph ("Grida is open source...") is project-specific context that earns its place, matching the lean anchor rather than the minor over-explanation of a 4.

Actionability

Fully executable guidance for a conventions skill: copy-paste-ready marker comments ("// GRIDA-EE: entitlement — paid-plan gate"), a concrete grep command ("grep -rn 'GRIDA-EE' editor crates packages"), a decisive classification test ("would this feature still make sense in a single-user, no-billing self-hosted instance?"), and unambiguous placement rules. Per the instruction-skill note, absence of runnable code is not penalized since the guidance is concrete and covers the common cases.

Workflow Clarity

"Working on EE features" gives a clear 4-step sequence (tag, place, dependency direction, fail-closed/security cross-check), and the "When EE crosses security" section adds explicit ordering (security review first, then this pattern). It sits below a 5 because there is no explicit verification checkpoint (e.g., re-running the grep to confirm the marker set after tagging, or confirming OSS still builds without the (ee) group); no destructive/batch cap applies.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent) and none are needed: the SKILL.md is a well-organized overview that delegates detail one level deep via clearly signaled sibling-skill links (platform-consumers, naming, security, database, oss-standards) plus a closing "See also" list. Structure and navigation are clean with no nested or buried references.

Specificity

Names the domain ("enterprise-edition features in Grida — the commercial/hosted concerns (entitlement, BYOD, billing)") and lists concrete artifacts it anchors ("GRIDA-EE: <surface> grep marker, (ee) route group, *-hosted package suffix, and namespaced grida_* schema") plus concrete actions ("adding or touching an EE-only feature, or deciding whether a feature is EE territory"). It falls short of a 5 because it enumerates conventions/artifacts rather than a comprehensive list of specific operations, but it is well beyond the 1-2 actions of a 3.

Completeness

Explicitly answers both: what ("Working pattern for enterprise-edition features in Grida — the commercial/hosted concerns (entitlement, BYOD, billing) on top of the OSS core. Anchor for the GRIDA-EE grep marker...") and when ("Use when adding or touching an EE-only feature, or deciding whether a feature is EE territory") with concrete trigger phrases. Third-person voice is used throughout; no first/second-person penalty applies.

Trigger Term Quality

Good natural keyword coverage: "enterprise-edition", "EE", "entitlement", "BYOD", "billing", "hosted", "commercial" — terms a contributor would actually say. A few natural synonyms are missing, e.g. "custom domains", "paid plans", or "subscriptions" that users may use instead of "BYOD", so it does not reach the comprehensive synonym coverage of a 5.

Distinctiveness Conflict Risk

Clear niche — Grida's EE/OSS boundary — with unique, specific triggers (GRIDA-EE marker, (ee) route group, *-hosted suffix, grida_* schema) that no other skill would plausibly claim. It even disambiguates siblings ("Surface skills (platform-consumers) are siblings"), minimizing wrong-skill triggering.