Conciseness

The body is dense and technical — blockquote constraints, a routing table, code-heavy steps — and assumes Claude's competence (no explanation of transactions, signals, or general Django concepts). Section lead-ins occasionally restate what the 2.1 table already conveys, and the test section carries four full example functions where the pattern is established after two. Not 5: minor trimming is possible; not 3: there is no padding of concepts Claude already knows.

Actionability

Copy-paste-ready model templates with imports and manager wiring, executable test code using real utilities ('outbox_runner', 'outbox_context(flush=False)', 'assume_test_silo_mode_of'), and a debug table citing specific metrics ('outbox.coalesced_net_processing_time') and Celery tasks. Not 4: the only placeholders (e.g. 'my_mapping_service') are intentional template substitution points, not missing steps.

Workflow Clarity

Step 1's intent-routing table dispatches to a sequenced Steps 2–8, a symptom→cause→investigation table provides an error-recovery loop, and Step 9 is an explicit pre-flight checklist that validates the batch/backfill operations. Not 4: validation checkpoints are explicit, not implicit; not capped at 3 because the checklist covers the destructive/batch cases.

Progressive Disclosure

The body is an overview plus core templates; detail is split into four real reference files (all verified to exist and be substantive), each clearly signaled with 'Load references/... for...' and exactly one level deep — the single cross-link in debugging.md points to a sibling top-level file also directly reachable from SKILL.md. Not 4: the split is appropriate and navigation is trivial.

Specificity

The description names multiple concrete capabilities — 'creating and maintaining outbox-based eventually consistent operations', 'model mixins, category registration, signal receivers, testing, backfill, and debugging' — comprehensively covering the skill's scope. Not 4: no coverage gaps relative to the skill's actual sections; every action is concrete rather than generic.

Completeness

Explicitly answers both 'what' ('Guide for creating and maintaining outbox-based eventually consistent operations in Sentry... Covers model mixins, category registration, signal receivers, testing, backfill, and debugging workflows') and 'when' ('Use when asked to...' followed by concrete trigger phrases). Not 4: neither half is missing or weakly implied.

Trigger Term Quality

Extensive natural trigger phrasing — 'add outbox', 'outbox not processing', 'data not replicating', 'backfill outbox data', 'test outbox', 'debug stuck outboxes', 'outbox coalescing' — alongside synonyms and API identifiers like 'outbox_runner', 'ReplicatedCellModel', and 'OutboxCategory'. Not 4: common user phrasings and their variations are all present.

Distinctiveness Conflict Risk

A clear niche — Sentry's hybrid-cloud outbox pattern — with distinct triggers ('CellOutbox', 'OutboxScope', 'replicate model to control silo') that no other plausible skill would claim. Not 4: no meaningful overlap risk with closely related skills.