Conciseness

The body is lean and command-driven with no padding that explains concepts Claude already knows. Minor over-explanation remains — the 'When to use' bullets and example workflow restate commands already shown above — keeping it just below the every-token-earns-its-place anchor 5.

Actionability

Guidance is mostly executable: `hermes-sync`, `cat shared/tasks/{task-id}/spec.md`, and `bash ./skills/file-sync/scripts/push-shared.sh tasks/{task-id}/ --exclude "spec.md"` with a concrete worked example (st-01) and a real script in the bundle. The minor gap is inconsistent invocation — push-shared.sh gets a full relative path while `hermes-sync` appears as a bare command despite the bundle containing `scripts/hermes-sync.py`, so the reader cannot tell how to run it from the skill.

Workflow Clarity

The example workflow gives a clear sequence (sync → read spec → work → push → confirm), but pushing a directory to MinIO is a batch write with no verification checkpoint — the skill says 'Always confirm to the sender after push completes' without ever checking that the push succeeded or what was uploaded. Per the rubric's cap, a batch operation without validation cannot score above 3.

Progressive Disclosure

Content is well organized into focused sections with the only external reference (`scripts/push-shared.sh`) being a real one-level-deep bundle file, appropriate for a skill of this size. It falls short of 5 because `scripts/hermes-sync.py` exists in the bundle yet is never linked from the body — the `hermes-sync` command's provenance is undocumented.

Specificity

The description names the domain ("Sync files with centralized storage") but offers only one generic action — 'sync' — without concrete operations like pulling config or pushing results. It names the domain with minimal/generic actions, matching the score-2 anchor ('Processes PDF files'); it does not reach 3 because no 1-2 concrete actions are enumerated.

Completeness

Both parts are present: what ("Sync files with centralized storage") and an explicit when ("Use when your coordinator or another Worker notifies you of file updates...") with concrete trigger phrases. It falls short of anchor 5 because the 'what' is thin — a single vague action with no mention of pull/push or which artifacts, whereas the 5-anchor shows a comprehensive multi-action statement.

Trigger Term Quality

Trigger phrases are natural for this environment: "file updates", "config changes", "task files", "shared data", "collaboration artifacts", and "coordinator or another Worker notifies you" — phrasing a coordinator would actually use. It misses a few natural variations (e.g., 'push results', 'MinIO', 'shared/'), placing it just below the comprehensive anchor 5.

Distinctiveness Conflict Risk

The coordinator/Worker notification framing carves out a distinct niche unlikely to fire for unrelated skills. Minor overlap risk remains with generic file-handling skills via broad terms like 'file updates' and 'shared data', keeping it below the clear-niche anchor 5.