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aws-cloudformation-lambda

Provides AWS CloudFormation patterns for Lambda functions, layers, API Gateway integration, event sources, cold start optimization, monitoring, logging, template validation, and deployment workflows. Use when creating Lambda functions with CloudFormation, configuring event sources, implementing cold start optimization, managing layers, integrating with API Gateway, and deploying Lambda infrastructure.

66

Quality

83%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

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

SKILL.md
Quality
Evals
Security

Quality

Content

67%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 a solid, executable reference with a clear deployment workflow and complete YAML/CLI examples. Its main weaknesses are redundancy between the best-practices and constraints sections, orphaned bundle files not referenced from the body, and a few undefined template parameters.

Suggestions

De-duplicate the Best Practices and Constraints and Warnings sections against the Instructions and references/constraints.md so each fact appears in one place, trimming the ~50-bullet best-practices list.

Link the existing references/examples.md and references/reference.md from the body (or remove them) so the skill's progressive-disclosure navigation is complete and no bundle file is orphaned.

Define the CodeBucket, CodeKey, and DatabaseUrl parameters (or reference where they come from) so the example templates are fully copy-paste runnable end-to-end.

DimensionReasoningScore

Conciseness

The body is mostly executable YAML/bash that earns its place, but the six best-practices categories (~50 bullets) and the Constraints section repeat material already embedded in Instructions (SnapStart, provisioned concurrency, DLQ, least-privilege IAM all appear multiple times), adding clear redundancy that could be tightened.

3 / 5

Actionability

Provides concrete executable AWS CLI commands and complete YAML for function, role, event sources, API Gateway, versioning, monitoring, and DLQ plus a full example template; minor gaps are referenced-but-undefined parameters (CodeBucket, CodeKey, DatabaseUrl) and a slightly inconsistent API Gateway HTTP API example.

4 / 5

Workflow Clarity

The Deployment Workflow is a clearly sequenced validate-deploy-monitor-verify-rollback process with explicit validation and verification checkpoints, but it lacks a true fix-and-revalidate feedback loop and uses a blunt delete-stack rollback rather than a CloudFormation rollback.

4 / 5

Progressive Disclosure

Structure is good with one clearly signaled, real one-level-deep reference (references/constraints.md), but the other two bundle files (examples.md, reference.md) are not linked from the body, and constraint content is duplicated both inline and in the referenced file, leaving minor navigation gaps.

4 / 5

Total

15

/

20

Passed

Description

92%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: third-person voice, comprehensive list of concrete capabilities, and an explicit 'Use when' trigger clause covering the main scenarios. Its only weakness is moderate trigger-term breadth, missing a few natural synonyms.

DimensionReasoningScore

Specificity

Names the domain and lists multiple concrete capabilities (Lambda functions, layers, API Gateway integration, event sources, cold start optimization, monitoring, logging, template validation, deployment workflows), giving comprehensive coverage.

5 / 5

Completeness

Explicitly answers both 'what' ('Provides AWS CloudFormation patterns for...') and 'when' ('Use when creating Lambda functions with CloudFormation...') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Includes natural phrases users would say ('creating Lambda functions with CloudFormation', 'configuring event sources', 'managing layers', 'integrating with API Gateway', 'deploying Lambda infrastructure'), but misses common synonyms/extensions like 'CloudFormation template', 'SAM', or 'serverless'.

4 / 5

Distinctiveness Conflict Risk

Targets a clear niche (CloudFormation-managed Lambda infrastructure) with distinct triggers and minimal overlap risk with unrelated skills.

5 / 5

Total

19

/

20

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.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

allowed_tools_field

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

Warning

Total

15

/

16

Passed

Repository

giuseppe-trisciuoglio/developer-kit

Path

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

Reviewed

Table of Contents

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