route53

Configures Amazon Route 53 DNS: public and private records, traffic-steering routing policies, health checks, DNS Firewall, Route 53 Profiles, VPC Resolver (also known as Route 53 Resolver) for hybrid and Outposts networks, and Global Resolver. Applicable when the customer wants to point a hostname at a target, split or fail over traffic across endpoints, monitor an endpoint, block malicious domains, centralize DNS across accounts, or resolve private DNS across a hybrid network. Routes to the right per-task procedure in references. Does not cover CloudFront-specific setup (see the route53-cloudfront skill) or non-DNS networking.

Quality

86%

Does it follow best practices?

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Securityby

Passed

No findings from the security scan

Quality

Content

72%

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 with excellent progressive disclosure and tight, assumption-of-competence prose. Its weaknesses are inherent to the router pattern: the body itself carries no executable code and no validation checkpoints, deferring both to the references.

Suggestions

Add one minimal copy-paste-ready example for the most common task (e.g., a basic AWS CLI record-creation snippet) so the body is not purely navigational and gives immediate executable guidance.

Include an explicit verification checkpoint in the body's routing workflow — e.g., 'after making changes, confirm propagation with dig/nslookup against the AWS resolver' — rather than deferring all validation to the references, since DNS and firewall changes are impactful.

Trim the capability-list overlap between the description and the Overview paragraph to recover a few tokens and sharpen the body's focus on routing.

Dimension	Reasoning	Score
Conciseness	Lean router-style body that assumes Claude's competence — it does not explain what DNS or Route 53 is, and every section (routing table, disambiguation notes, security constraints) earns its tokens. Minor redundancy between the description and the Overview paragraph is the only slack.	3 / 3
Actionability	Routing guidance is concrete and specific (goal→reference table, plus hard rules like 'All Route 53 Domains API calls are made in us-east-1' and MCP-vs-CLI fallback), but the body holds no executable code or commands — the actionable detail is delegated one level deep into the references.	2 / 3
Workflow Clarity	The routing sequence is clear ('Read the matching reference in full before acting, then follow its constraints and steps') and the disambiguation notes make routing unambiguous, but the body has no validation/verification checkpoints for impactful DNS and firewall changes, capping this dimension at 2.	2 / 3
Progressive Disclosure	Exemplary one-level-deep structure: a concise overview, a goal→reference table with links, and eleven verified self-contained reference files, each carrying its own decision tables, constraints, procedure, and troubleshooting.	3 / 3
	Total	10 / 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 strong, specific description that names concrete actions, provides explicit trigger guidance, and proactively disambiguates from adjacent skills. It avoids vague fluff and reads in third person throughout.

Dimension	Reasoning	Score
Specificity	Lists multiple concrete actions — 'point a hostname at a target, split or fail over traffic across endpoints, monitor an endpoint, block malicious domains, centralize DNS across accounts, or resolve private DNS across a hybrid network' — alongside specific capabilities like health checks, DNS Firewall, and Route 53 Profiles.	3 / 3
Completeness	Clearly answers what ('Configures Amazon Route 53 DNS: ...') and when via the explicit 'Applicable when the customer wants to...' trigger clause, which is an equivalent of a 'Use when...' clause and satisfies the completeness-3 requirement.	3 / 3
Trigger Term Quality	Uses natural phrasing a customer would actually say ('point a hostname at a target', 'split or fail over traffic', 'block malicious domains', 'resolve private DNS across a hybrid network') with good coverage of common variations.	3 / 3
Distinctiveness Conflict Risk	Occupies a clear Route 53 DNS niche and actively reduces conflict risk by stating 'Does not cover CloudFront-specific setup (see the route53-cloudfront skill) or non-DNS networking.'	3 / 3
	Total	12 / 12 Passed

Validation

93%

Warnings & errors only

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

Validation — 15 / 16 Passed

Validation for skill structure

Criteria	Description	Result
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
Path: skills/specialized-skills/networking-and-content-delivery-skills/route53/SKILL.md
Commit: 222ce56

Reviewed: 3 days ago

Table of Contents

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