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aws-serverless

Builds, deploys, manages, debugs, configures, and optimizes serverless applications on AWS using Lambda, API Gateway, Step Functions, EventBridge, and SAM/CDK. Covers cold starts, CORS debugging, event source mappings, troubleshooting, concurrency, SnapStart, Powertools, function URLs, EventBridge Scheduler, Lambda layers, and production readiness. Triggers on mentions of Lambda, API Gateway, Step Functions, SAM templates, CDK serverless stacks, DynamoDB stream triggers, SQS event sources, cold starts, timeouts, 502/504 errors, throttling, concurrency, CORS, Powertools, or any event-driven architecture on AWS, even without the word "serverless." Does not apply to EC2, ECS/Fargate containers, or Amplify hosting.

71

Quality

87%

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

78%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.

A well-structured routing overview that excels at progressive disclosure, pointing to real one-level-deep references and specialized skills with clear navigation. It is slightly held back by verbose table cells and by being a dispatcher whose executable detail lives in referenced files.

Suggestions

Tighten the longest orchestration table cells (e.g. the aws-lambda-durable-functions rows) to the essential routing signal; move the extended tradeoff prose into the referenced skill or orchestration.md.

Consider adding a one-line 'how to use this skill' sequencing note at the top so the check-specialized-first-then-references flow is explicit as a numbered step rather than implied.

DimensionReasoningScore

Conciseness

Mostly efficient routing tables, but several table cells (notably the durable-functions rows) run long and could be trimmed without losing the routing signal.

4 / 5

Actionability

Concrete 'Use this skill | When...' and 'User need | Read file' routing maps give specific direction; for a routing skill the guidance is actionable, though the actual execution lives in the referenced files.

4 / 5

Workflow Clarity

Clear routing flow (specialized skills first, then general references) and an explicit 'MUST surface the choice' decision rule; no in-body validation checkpoints, but the body routes rather than performing destructive batch operations.

4 / 5

Progressive Disclosure

Clear overview with one-level-deep, well-signaled markdown links to real reference files and sibling skills; content is appropriately split between the overview and the references directory.

5 / 5

Total

17

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20

Passed

Description

96%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.

A strong, specific description that concretely states capabilities and provides comprehensive, natural trigger terms with explicit exclusions. Its only weakness is minor overlap with sibling Lambda/Step Functions skills sharing parts of the trigger surface.

DimensionReasoningScore

Specificity

Lists six concrete verbs ('Builds, deploys, manages, debugs, configures, and optimizes') plus named services and feature areas, giving comprehensive coverage of concrete actions rather than vague language.

5 / 5

Completeness

Explicitly answers both 'what' (build/deploy/manage/debug/configure/optimize serverless apps on AWS) and 'when' ('Triggers on mentions of... even without the word serverless'), with concrete trigger phrases and exclusions.

5 / 5

Trigger Term Quality

Comprehensive natural-term coverage including services, error codes ('502/504 errors'), and operational phrases ('cold starts', 'timeouts', 'throttling', 'CORS', 'Powertools') that users would actually say.

5 / 5

Distinctiveness Conflict Risk

Clear AWS-serverless niche with explicit exclusions ('Does not apply to EC2, ECS/Fargate containers, or Amplify hosting'), but shared Step Functions/Lambda triggers create minor overlap risk with closely related sibling skills.

4 / 5

Total

19

/

20

Passed

Validation

100%

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

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
aws/agent-toolkit-for-aws
Reviewed

Table of Contents

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