Conciseness

The body is ~43 lean lines: a numbered rules list, a scenario table, and five terse steps with no concept explanations Claude already knows. Even the densest rule ('Kubernetes DNS names (e.g., `http://order-service:3001`) do not resolve in Container Apps') carries non-obvious domain knowledge rather than padding, so every token earns its place — matching the anchor 5 example's economy, and clearly above anchor 4 (which requires trimmable over-explanation).

Actionability

Guidance is concrete and executable for an instruction-only skill: exact MCP tool names (`mcp_azure_mcp_get_azure_bestpractices`, `mcp_azure_mcp_documentation`), an exact output-directory convention, a copy-paste ask_user prompt ('Migration complete. Test locally or deploy to Azure?'), and a specific scan rule for hardcoded hostnames. It stops short of anchor 5 because steps 2–3 link assessment/code-migration guides only for functions and app-service, leaving the container-apps path ('Convert code/config using the scenario-specific migration guide') without a direct guide link — a minor gap versus 'specific examples cover the common cases'.

Workflow Clarity

The sequence is explicit and enforced ('Follow phases sequentially — do not skip', 'Generate assessment before any code migration'), with checkpoints (ask_user on destructive actions, the step-4 user decision, and migration-status.md's Not Started→In Progress→Complete→Failed feedback loop per workflow-details.md). It does not reach anchor 5 because the body has no explicit post-migration validation step (e.g., build/smoke-test the converted code before hand-off) — that's a missing checkpoint, but the destructive-action guard and status tracking keep it above anchor 3.

Progressive Disclosure

SKILL.md is a clean overview: a scenario table routing each source→target to one-level-deep reference files, all of which exist in the bundle (verified against the file listing), with sub-guides reached via the scenario files (e.g., cloudrun-to-container-apps.md → cloudrun-assessment-guide.md). Minor gaps versus anchor 5: functions runtimes sit two reference levels deep (SKILL.md → lambda-to-functions.md → runtimes/*.md), and several container-apps guides (assessment-guide.md, deployment-guide.md, spring-*-guide.md) are never surfaced from SKILL.md, leaving navigation for those scenarios slightly less direct.

Specificity

It lists multiple concrete actions — 'Assess and migrate cross-cloud workloads to Azure with reports and code conversion' — plus a comprehensive source→target mapping ('Lambda→Functions, Beanstalk/Heroku/App Engine→App Service, Fargate/Kubernetes/Cloud Run/Spring Boot→Container Apps'). Coverage is comprehensive for the domain (anchor 5); anchor 4 would require a noticeable action gap, and none exists.

Completeness

It explicitly answers both questions: what ('Assess and migrate cross-cloud workloads to Azure with reports and code conversion') and when ('WHEN: migrate Lambda to Functions, AWS to Azure, ...'), with concrete trigger phrases. This is the anchor 5 pattern exactly — a clear 'what' plus an explicit 'Use when'-equivalent clause — well above anchor 4's 'when could be more explicit'.

Trigger Term Quality

The 'WHEN:' clause packs ~10 natural trigger phrases users would actually say — 'migrate Lambda to Functions', 'AWS to Azure', 'migrate Beanstalk', 'Cloud Run migration', 'Fargate to ACA', 'ECS/Kubernetes/GKE/EKS to Container Apps', 'cross-cloud migration' — including abbreviation synonyms (ACA, ECS, GKE, EKS). This matches anchor 5's 'comprehensive coverage including synonyms'; anchor 4 would need clearly missing natural terms, and the generic 'AWS to Azure'/'cross-cloud migration' phrases cover the umbrella cases.

Distinctiveness Conflict Risk

It occupies a clear niche (cross-cloud migration to Azure) with distinct, specific triggers naming source and target services (Lambda→Functions, Fargate to ACA, Spring Boot to Container Apps). These would rarely fire for a wrong skill, matching anchor 5's 'clear niche with distinct triggers; minimal conflict risk'.