Conciseness

The body is efficient: it assumes domain competence, specifies only project-specific conventions (RoE escalation_contacts, ISO 8601 range formats, the ContactPlan schema), and avoids generic explanations. Minor over-explanation keeps it below the 5 anchor — e.g. the white-cell/blue-cell/red-cell framing paragraph and the "Common blackouts" bullet list could be trimmed without losing actionability.

Actionability

Guidance is concrete and executable for an instruction-only skill: a deterministic resolution rule ("If exactly one contact has the role... use that; otherwise ask"), concrete channel formats ("Signal, email, PagerDuty service-key, Slack channel", "tel: / signal: / mailto: style"), exact ISO 8601 examples, an output path (plan/contact.json), and a full field-level schema table. Not a 5 because a couple of operations are left abstract — e.g. how the agent should POST to the external SOC endpoint and no complete example contact.json document.

Workflow Clarity

Steps 1-5 are clearly sequenced with defaults (15-minute response window), and a Validation Checklist with explicit pass conditions precedes writing plan/contact.json against decepticon.core.schemas.ContactPlan. It falls short of the 5 anchor because no error-recovery feedback loop is described (what to do when schema validation fails or the primary is unresolvable); the operation is plan generation, not destructive/batch, so no 3-cap applies.

Progressive Disclosure

No bundle files (references/, scripts/, assets/) exist, so nothing external to navigate; the body is well-sectioned (When to Use, Workflow, Validation Checklist, Anti-patterns, Output, Document schema) and every internal reference (plan/contact.json, ContactPlan) is to the output artifact, not to a missing file. The ~25-line document schema table inlined in SKILL.md is content that could live in a reference file, which keeps it at the 4 anchor (good structure, minor organization gaps) rather than 5.

Specificity

The description names the domain ("Contact / communications plan generator") and enumerates concrete components — "primary operator, escalation chain, abort signal recipient, external SOC endpoint, blackout windows" — which map directly to the skill's output fields. It falls just short of the 5 anchor because the items are plan components rather than multiple explicit actions, and no act/validate verbs appear beyond "generator".

Completeness

The "what" is clear (a generator for a contact/communications plan with five concrete components), but the description field contains no "Use when..." clause or equivalent trigger guidance — the when-guidance lives only in a separate metadata field, not the description. Per the rubric guideline, a missing explicit when-clause caps completeness at 3.

Trigger Term Quality

Natural phrases users would say are present: "contact", "communications plan", "escalation chain", "blackout windows", "SOC". A few common variations ("who do we notify", "paging", "on-call", "deconfliction") are missing, which matches the 4 anchor (good coverage, a few natural terms missing) rather than the 5 anchor's comprehensive synonym coverage.

Distinctiveness Conflict Risk

"Contact / communications plan generator — primary operator, escalation chain, abort signal recipient, external SOC endpoint, blackout windows" defines a clear niche with distinct trigger terms (escalation chain, blackout windows, SOC endpoint) that no generic skill would claim. It is not above the 5 anchor because there is no clearer fit; it is not below because overlap with other skills is minimal.