Conciseness

The body is dense and assumes competence — "Do not assume the binary is on PATH. The sandbox image ships a small, fixed tool set" — with no padding on concepts Claude already knows; only minor instances could be trimmed ("no amount of keeping the box warm can rescue it" and the opaque Boundaries policy paragraph), so it sits just below the every-token-earns-its-place anchor.

Actionability

Copy-paste-ready commands throughout: `command -v aws || echo "not installed"`, the full login/verify table (`aws sso login --use-device-code` / `aws sts get-caller-identity`, `gcloud auth login --no-launch-browser`, `az login --use-device-code`), plus explicit anti-commands ("Never run the bare form"); the gaps are the missing concrete install command and the absent example `[sso-session …]` config block, keeping it below fully-executable anchor 5.

Workflow Clarity

A clear section sequence (check install → device-code login → verify → boundaries → go-live) with explicit validation checkpoints (the Verify column, "Verify the provider account, region, target, and authority before acting") and an error-recovery loop ("These logins self-expire in roughly ten minutes, so if the user takes too long, start a fresh one"); it falls short of anchor 5 only because there is no consolidated numbered step list or checklist.

Progressive Disclosure

A single well-organized file (~85 lines) with clear section headers and clearly signaled cross-skill references (`interactive-login`, `use-shared-credential`); it is above the compact-skill threshold where sections alone would earn a 5, and the operator-facing "Go-live" section could arguably live in a reference file — good structure with a minor organization gap.

Specificity

Quotes like "Sign a cloud provider's CLI in (AWS, Google Cloud, Azure, or another) with a device-code flow, then run that CLI as the requesting user" and "checking the CLI is installed" list several concrete actions, but "the boundaries on cloud writes" is abstract rather than a concrete action — a minor coverage gap that places this between anchors 4 and 5.

Completeness

The 'what' is clear and concrete, but there is no "Use when..." clause or equivalent explicit trigger guidance anywhere in the description; the 'when' is only weakly implied by the provider names, so per the judging guidelines completeness is capped at 3.

Trigger Term Quality

Strong natural keywords users would say — "AWS", "Google Cloud", "Azure", "CLI", "sign in", "login", "device-code" — but common synonyms such as "aws cli", "gcloud", "az", or "authenticate" are missing, matching the 'good coverage, a few natural terms missing' anchor rather than the comprehensive one.

Distinctiveness Conflict Risk

The device-code cloud CLI sign-in niche with distinct provider-name triggers is well differentiated, but the skill sits in a family of closely related credential/login skills (the body itself references `interactive-login` and `use-shared-credential`), leaving minor overlap risk — anchor 4 rather than 5.