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aws-cloudformation-cloudfront

Provides AWS CloudFormation patterns for CloudFront distributions, origins (ALB, S3, Lambda@Edge, VPC Origins), CacheBehaviors, Functions, SecurityHeaders, parameters, Outputs and cross-stack references. Use when creating CloudFront distributions with CloudFormation, configuring multiple origins, implementing caching strategies, managing custom domains with ACM, configuring WAF, and optimizing performance.

58

Quality

73%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./plugins/developer-kit-aws/skills/aws-cloudformation/aws-cloudformation-cloudfront/SKILL.md

The canonical home for this skill is giuseppe-trisciuoglio/developer-kit

SKILL.md
Quality
Evals
Security

Quality

Content

50%Weight 40%Scale 1-5

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

The content is highly actionable with extensive ready-to-use templates, but it is very verbose for a SKILL.md and duplicates much of its own reference bundle. The primary build workflow also lacks an explicit validation checkpoint for a destructive deployment operation.

Suggestions

Move most inline full CloudFormation templates into references/examples.md and keep SKILL.md as a concise overview with one or two representative snippets plus clear links to EXAMPLES.md and REFERENCE.md.

Add an explicit validation checkpoint to the Instructions workflow (e.g., run cfn-lint on the template, then deploy via change set and review before execute) so the destructive deployment sequence has a feedback loop.

Replace '# ... configuration' placeholder snippets and consolidate redundant full templates to reduce token cost.

DimensionReasoningScore

Conciseness

At 1816 lines the body inlines many complete CloudFormation templates that duplicate material already present in references/examples.md (1504 lines) and references/reference.md (814 lines), making it noticeably verbose with padded sections that should live in the references.

2 / 5

Actionability

Provides numerous concrete, mostly copy-paste-ready CloudFormation YAML templates and AWS CLI commands covering the common cases (S3/ALB/VPC origins, cache policies, WAF, functions, change sets), with minor gaps such as '# ... configuration' placeholders and references to undefined parameters.

4 / 5

Workflow Clarity

The 8-step Instructions sequence is ordered but has no validation checkpoint; because CloudFormation deployment is destructive/batch, the missing validate/cfn-lint/change-set step in the main workflow caps this at 3 even though change-set and drift-detection content exists elsewhere.

3 / 5

Progressive Disclosure

Reference files exist and are clearly signaled (inline links plus an 'Additional Files' section), but the SKILL.md inlines roughly 1500 lines of full templates that belong in those references, so content that should be separate is inline.

3 / 5

Total

12

/

20

Passed

Description

87%Weight 40%Scale 1-5

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

The description is strong: it explicitly covers both what the skill provides and when to use it with concrete triggers, and it occupies a distinct niche. Minor gains would come from adding synonyms like 'CDN' and varying the action verbs beyond 'Provides patterns for'.

DimensionReasoningScore

Specificity

Enumerates a comprehensive set of concrete CloudFront CloudFormation capabilities ('CloudFront distributions, origins (ALB, S3, Lambda@Edge, VPC Origins), CacheBehaviors, Functions, SecurityHeaders, parameters, Outputs and cross-stack references'), but 'Provides patterns for' is the sole action verb rather than a list of distinct actions.

4 / 5

Completeness

Clearly states what it provides and follows with an explicit 'Use when...' clause listing concrete trigger scenarios, satisfying both the what and the when.

5 / 5

Trigger Term Quality

Includes natural trigger phrases users would say ('creating CloudFront distributions with CloudFormation', 'configuring multiple origins', 'managing custom domains with ACM', 'configuring WAF'), but omits common synonyms such as 'CDN' and any file extensions.

4 / 5

Distinctiveness Conflict Risk

Targets a narrow, well-defined niche (CloudFront via CloudFormation) with distinct, specific triggers and minimal overlap risk with other skills.

5 / 5

Total

18

/

20

Passed

Validation

81%

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

Validation — 13 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

skill_md_line_count

SKILL.md is long (1817 lines); consider splitting into references/ and linking

Warning

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

relative_links

Relative link issues: 2 missing

Warning

Total

13

/

16

Passed

Repository

fernandezbaptiste/developer-kit

Path

plugins/developer-kit-aws/skills/aws-cloudformation/aws-cloudformation-cloudfront/SKILL.md

Revision

810297c

Reviewed

Table of Contents

DiscoveryImplementationValidation

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