Conciseness

The body is lean and efficient with zero padding — it states the DB path, the FTS table, a four-step workflow, two probe commands, and a one-line privacy note. Every line assumes Claude's competence and nothing explains concepts Claude already knows, matching the top anchor exactly.

Actionability

Two copy-paste-ready sqlite3 commands with the real DB path and a working FTS query form provide mostly executable guidance, with minor gaps: the room and participant tables are referenced generically ("room tables") without exact names, and the FTS match term is an unfilled 'query' placeholder. It falls short of 5 because the common cases aren't fully covered with concrete, ready-to-run examples for each step.

Workflow Clarity

A clear four-step sequence (identify account/room → FTS discovery → narrow by date/participant/room → report names, spans, confidence) with an explicit "Start by inspecting accounts/rooms before broad searching" ordering hint. The queries are read-only, so the destructive-operation cap does not apply; it stays below 5 because there are no explicit validation checkpoints (e.g. verifying a match actually belongs to the suspected room) and step 3 "Narrow by date, participant, and room" lacks concrete commands.

Progressive Disclosure

The skill is under 50 lines with no need for external references (no bundle files exist), and the content is organized into clean Source, Workflow, and probe sections with no inlined material that belongs in a separate file. Per the rubric's simple-skill guideline, well-organized sections alone merit the top score here.

Specificity

Lists several concrete capabilities — "contact hints", "room lookup", "WhatsApp/iMessage traces", "FTS" — but they are noun fragments rather than actions and coverage of what the skill does is terse. It sits above score 3 (only 1-2 concrete actions) but below 5 (comprehensive, explicit action coverage).

Completeness

The "what" is stated concretely (contact hints, room lookup, message traces, FTS), but there is no "Use when…" clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines. It is not score 2 because the "what" is clear rather than vague, and not 4 because the "when" is entirely absent rather than merely imprecise.

Trigger Term Quality

Includes relevant keywords like "Beeper", "WhatsApp", "iMessage", and "contact hints", but "FTS" is technical jargon and common natural phrases users would say — "chat history", "search messages", "find a conversation" — are missing. Not notably below this midpoint (score 2 has only generic keywords), but clearly short of good coverage at 4.

Distinctiveness Conflict Risk

"Beeper cache" names a specific application with distinct triggers (WhatsApp/iMessage bridges, contact hints), giving it a clear niche with minimal conflict risk against other skills. No neighboring anchor fits better: 4 would imply meaningful overlap with closely related skills, which is not the case.