Conciseness

The body is dense with project-specific facts Claude could not know (the two-level defaults model, the threads-column exception, the missing sqlite3 CLI) and contains no padding or explanation of known concepts. Every token earns its place — anchor 5.

Actionability

Guidance is fully executable and copy-paste ready: canonical SQL queries, exact ncl commands with flags, a complete register invocation, and the legacy WhatsApp audit query. Specific examples cover the common cases — anchor 5, not 4, since there are no gaps in the primary flows.

Workflow Clarity

Sections are well sequenced with real checkpoints (owner check routing to /init-first-agent, the one-time WhatsApp audit), but "Change Wiring" deletes a messaging_group_agents row — a destructive database operation — with no validation/verification step afterward. The rubric's explicit cap for destructive operations without validation applies, holding this at anchor 3 despite otherwise strong sequencing.

Progressive Disclosure

Well-sectioned single file that appropriately delegates detail to docs/isolation-model.md and per-channel skills, with clear headers making navigation easy. Not 5 because at ~148 lines some inline material (the channel-defaults model, the legacy WhatsApp migration audit) reads like reference content that belongs in a separate file; not 3 because references are clearly signaled and structure is good.

Specificity

"Wire channels to agent groups, manage isolation levels, add new channel groups" lists three specific imperative actions with only minor coverage gaps (e.g., changing existing wiring is not mentioned). Not 5 because coverage is not comprehensive; not 3 because it clearly exceeds 1-2 concrete actions.

Completeness

Both halves are explicit: the "what" is three concrete actions, and the "when" gives three concrete scenarios ("Use after adding a channel, during setup, or standalone to reconfigure"). This is more specific than anchor 4's example, matching anchor 5's explicit what-and-when with concrete triggers.

Trigger Term Quality

Natural phrases users would say are present — "adding a channel", "during setup", "reconfigure", "channels", "agent groups", "isolation" — but common synonyms like "connect" or platform-specific terms are missing. Better than anchor 3's generic keyword coverage, short of anchor 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

"Wire channels to agent groups" carves a clear niche, but "add new channel groups" overlaps with the per-channel add skills (e.g. /add-<channel>) for "add a ... channel" triggers. Mostly distinct with minor overlap risk against closely related skills — anchor 4, not 5.