Conciseness

The body is dominated by commands, stop conditions, and tables with almost no explanation of concepts Claude already knows. Minor trimmable content remains (the ~25-line ASCII report box in Step 3.5, framing sentences like "Detect how this project deploys so we know what to verify"), so it fits 4 (efficient, minor over-explanation) rather than 5.

Actionability

Nearly every step provides copy-paste-ready gh/git/curl commands, including an executable platform-detection snippet and an awk diff-scope classifier; remaining placeholders (<run-id>, <merge-commit-sha>) are inherently contextual values. This matches the 5 anchor (fully executable, copy-paste ready, common cases covered) better than 4, which expects minor gaps in concrete guidance.

Workflow Clarity

Steps 1-10 are explicitly sequenced with stop conditions at each stage, Step 3.5 is a dedicated pre-merge validation gate with a checklist report, failing tests are declared a blocker, and revert is offered as an escape hatch at every failure point. For a skill whose core operation is an irreversible production merge, this matches the 5 anchor (explicit validation, feedback loops, checklists); the destructive-operation cap does not apply because validation is present.

Progressive Disclosure

With no bundle files, the single-file structure is well organized into numbered steps, decision trees, and platform tables. Minor gaps prevent a 5: the frontmatter argument-hint promises --skip-checks and --env flags that the body never explains, and the Usage section appears only at the very end.

Specificity

"Merge PR, wait for CI, verify deploy, run canary" lists four concrete actions that comprehensively cover the landing pipeline described in the body. It matches the 5 anchor (multiple specific concrete actions, comprehensive coverage) better than 4, which expects minor gaps in coverage.

Completeness

The "what" is explicit (merge, CI wait, deploy verification, canary), but there is no "Use when..." clause or equivalent trigger guidance, which caps completeness at 3 per the rubric guidelines. It is not 4 because the "when" is entirely absent rather than merely implicit or imprecise.

Trigger Term Quality

Natural terms like "Merge PR", "CI", "deploy", "canary", and "landing pipeline" are present, but common user synonyms such as "land it", "ship", "release", or "push to production" are missing. This fits 4 (good keyword coverage, a few natural terms missing) rather than 5, which requires synonyms and variations.

Distinctiveness Conflict Risk

The merge-then-verify-deploy pipeline is a clear niche, but individual terms like "deploy" and "CI" overlap with general shipping/deployment skills. It fits 4 (mostly distinct, minor overlap risk with closely related skills) rather than 5, since a user asking simply to "deploy" could match other skills.