Conciseness

The body is dense with non-obvious specifics Claude cannot know (weight units like "1000 = 1%", monitoring windows in milliseconds, MCP tool names), which justifies its length. Minor over-explanation remains — the "What Are Guarded Rollouts?" prose and the "Core Principles" list restate what the workflow sections already demonstrate — so it fits anchor 4 (minor instances that could be trimmed) rather than anchor 5's every-token-earns-its-place.

Actionability

It provides a complete, copy-paste-ready JSON payload for start-guarded-rollout with realistic stage and metric configurations, concrete tool calls for each step (get-flag, list-metrics, toggle-flag), and exact actions for each edge case. This matches the top anchor: fully executable guidance covering the common case.

Workflow Clarity

The five-step workflow (Prepare → Design Stages → Configure Metrics → Start → Verify) includes explicit pre-flight checks (flag on, no existing rollout), a verification step ("Use get-flag to confirm the guarded rollout is active"), and a documented recovery path ("Stopping a Rollout" plus the Edge Cases table). Validation checkpoints are explicit, not implicit, matching the top anchor.

Progressive Disclosure

The body is a well-organized flat set of sections with no nested references and a coherent single workflow, but it is ~160 lines all inline with no offloading of reference-style material (Key Components, Edge Cases tables) to bundle files. It sits between anchor 4 (good structure, minor organization gaps) and anchor 5 (clear overview with well-signaled references), since no references exist to signal.

Specificity

The description lists multiple concrete actions — "progressive traffic increases, metric monitoring, and automatic rollback" — comprehensively covering the skill's scope of staging, monitoring, and recovery. It matches the top anchor for listing several specific concrete actions with no vague filler.

Completeness

It explicitly answers both what ("Configure guarded rollouts with progressive traffic increases, metric monitoring, and automatic rollback") and when ("Use when releasing features gradually with safety thresholds"). The trigger clause is explicit and concrete, matching the top anchor rather than anchor 4's "when could be more explicit".

Trigger Term Quality

Natural phrases like "releasing features gradually", "safety thresholds", and "progressive traffic" are present, but common synonyms such as "canary", "phased rollout", or "feature flag" are missing. This fits anchor 4 (good coverage, a few natural terms missing) rather than anchor 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

"Guarded rollouts" carves a fairly distinct niche, but the description never names LaunchDarkly or feature flags, so it could be selected for generic canary/deployment tasks — minor overlap risk with closely related skills (anchor 4) rather than anchor 5's clear niche with distinct triggers.