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cloudfront

Configures Amazon CloudFront content delivery across six workflows: when to use CloudFront and how it fits with AWS WAF, Shield, CloudFront Functions, Lambda@Edge, Route 53, and origins (creating a distribution, caching, and Flat Rate Pricing (FRP) versus pay-as-you-go pricing); managing custom-domain TLS certificates (ACM in us-east-1); configuring multi-tenant distributions; protecting origins with origin access control (OAC), VPC origins, and origin mutual TLS (mTLS); securing content with signed URLs and cookies, geographic restrictions, viewer mutual TLS, and edge token validation; and observing traffic with standard and real-time logs. Applicable when the customer wants to put CloudFront in front of content, choose pricing, lock an origin, restrict who can view content, or analyze logs. Not applicable for the Route 53 DNS side of a CloudFront custom domain or failover between distributions (see the route53-cloudfront skill), or for pure-Route 53 DNS work (see the route53 skill).

74

Quality

92%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

85%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-architected router skill: lean overview, explicit routing table, disambiguating notes, and real one-level-deep reference files. Its only weakness is actionability — the body delegates all executable detail to references, so it contains no commands or code itself.

Suggestions

Add a brief concrete example of the AWS MCP server vs CLI invocation pattern (one or two representative commands) so the body is actionable without forcing a reference round-trip.

Optionally inline a minimal 'create a distribution' skeleton command to anchor the most common entry workflow, keeping detailed steps in when-to-use-cloudfront.md.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence — it teaches no general concepts (e.g. what CloudFront is) and every section (overview, routing table, routing notes, cross-service boundary) serves a routing decision. Not level 2 because there is no padded explanation or redundancy that could be cut without losing the disambiguation logic.

3 / 3

Actionability

The goal→reference table and 'Read the matching reference in full before acting, then follow its constraints and steps' give concrete routing direction, but the body itself contains no executable commands or code — all execution is delegated to the reference files. It sits above level 1 (it is specific, not vague) but below level 3 because nothing in the body is copy-paste ready.

2 / 3

Workflow Clarity

The routing workflow is unambiguous: identify the goal in the table, read the matching reference in full, then follow its constraints and steps, with disambiguating notes (viewer mTLS vs origin mTLS, protecting origins vs securing content). The 'read in full before acting' instruction acts as a checkpoint. The body itself involves no destructive/batch steps, so missing per-step validation does not cap the score.

3 / 3

Progressive Disclosure

A clear overview points to six well-signaled, one-level-deep reference files via a table, and all referenced paths (references/when-to-use-cloudfront.md, managing-certificates-with-cloudfront.md, protecting-your-origins.md, securing-your-content.md, cloudfront-observability.md, multi-tenant-distributions.md) exist in references/. Content is appropriately split with easy navigation, matching the 'clear overview with well-signaled one-level-deep references' anchor.

3 / 3

Total

11

/

12

Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A highly specific, third-person description that crisply states capabilities, explicit 'Applicable when' triggers, and clear deconfliction against related route53 skills. It is comprehensive without devolving into fluff.

DimensionReasoningScore

Specificity

Lists many concrete actions across six workflows — 'creating a distribution, caching, and Flat Rate Pricing', 'managing custom-domain TLS certificates (ACM in us-east-1)', 'origin access control (OAC), VPC origins, and origin mutual TLS', 'signed URLs and cookies, geographic restrictions, viewer mutual TLS, and edge token validation' — matching the 'lists multiple specific concrete actions' anchor.

3 / 3

Completeness

Explicitly answers both what (the six workflows enumerated in detail) and when ('Applicable when the customer wants to...'), and adds negative scope ('Not applicable for the Route 53 DNS side...'). Matches the anchor for clearly answering both what AND when with explicit triggers.

3 / 3

Trigger Term Quality

Natural user-facing phrasing appears in 'Applicable when the customer wants to put CloudFront in front of content, choose pricing, lock an origin, restrict who can view content, or analyze logs', plus common terms like CloudFront, custom domain, signed URLs, certificates, and logs. Not level 2 because it covers the common variations a user would actually say rather than only technical jargon.

3 / 3

Distinctiveness Conflict Risk

Clear CloudFront niche with explicit boundaries — 'Not applicable for the Route 53 DNS side of a CloudFront custom domain or failover between distributions (see the route53-cloudfront skill), or for pure-Route 53 DNS work (see the route53 skill)' — making overlap with sibling skills unlikely.

3 / 3

Total

12

/

12

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
aws/agent-toolkit-for-aws
Reviewed

Table of Contents

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