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aws-lambda-java-integration

Provides AWS Lambda integration patterns for Java with cold start optimization. Use when deploying Java functions to AWS Lambda, choosing between Micronaut and Raw Java approaches, optimizing cold starts below 1 second, configuring API Gateway or ALB integration, or implementing serverless Java applications. Triggers include "create lambda java", "deploy java lambda", "micronaut lambda aws", "java lambda cold start", "aws lambda java performance", "java serverless framework".

65

Quality

82%

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

65%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 body is well-structured with strong progressive disclosure and largely executable examples, but it is padded with sections that duplicate the description and lacks validation checkpoints in its deployment/optimization workflows. Tightening the redundant sections and adding verification steps would raise the two middle dimensions.

Suggestions

Remove or merge the 'Overview' and 'When to Use' sections, which duplicate the frontmatter description, and trim the Examples section's Process lists to the steps that add information beyond the reference files.

Add explicit validation checkpoints to the deployment and cold-start-optimization workflows, e.g., 'verify the deployed endpoint returns 200' and 'measure cold start in CloudWatch after refactoring to confirm the improvement'.

Replace the undefined 'successResponse'/'errorResponse' helpers in the error-handling example with the actual APIGatewayProxyResponseEvent construction so the snippet is copy-paste ready.

DimensionReasoningScore

Conciseness

The 'Overview' and 'When to Use' sections restate the frontmatter description almost verbatim, and the Examples section's Input/Process/Output lists add length without new actionable information. It is mostly efficient (tables and code dominate) but includes unnecessary duplication that could be trimmed, fitting anchor 3 rather than anchor 4's 'minor instances'.

3 / 5

Actionability

Concrete, near-executable code is provided for both handler styles, AWS client reuse, and error handling, plus complete serverless.yml and SAM templates. Minor gaps remain — the error-handling example calls undefined helpers like 'successResponse(result)' and 'errorResponse(400, e.getMessage())' — so it fits 'mostly executable... with minor gaps' rather than copy-paste-ready anchor 5.

4 / 5

Workflow Clarity

The 'Instructions' numbering (Choose Your Approach → Project Structure → Implementation Examples) is topical organization rather than a sequenced workflow, and no validation checkpoints appear (e.g., verify the deployment, measure cold start after applying optimizations). Sequence is present but checkpoints are missing or implicit, matching anchor 3; it is above anchor 2 because steps are clearly defined and examples do show ordered processes.

3 / 5

Progressive Disclosure

The body is a genuine overview that keeps key patterns inline and delegates detail to four clearly signaled, one-level-deep references (micronaut-lambda.md, raw-java-lambda.md, serverless-deployment.md, testing-lambda.md), all of which exist as real files with no further nesting. This matches the anchor-5 pattern of a clear overview with well-signaled references.

5 / 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.

A strong description: concrete third-person capability list, explicit 'Use when' guidance, and natural trigger phrases for a well-defined niche. The only weakness is modest synonym coverage in the trigger list.

Suggestions

Add a few missing natural trigger variants such as 'spring to lambda migration', 'graalvm native image lambda', 'snapstart', or 'java 21 lambda' to broaden trigger-term coverage.

DimensionReasoningScore

Specificity

The description lists multiple concrete actions — 'deploying Java functions to AWS Lambda', 'choosing between Micronaut and Raw Java approaches', 'optimizing cold starts below 1 second', 'configuring API Gateway or ALB integration' — with comprehensive coverage of the skill's task surface in third-person voice. It exceeds anchor 4 ('minor gaps in coverage') since every main capability of the skill is named explicitly.

5 / 5

Completeness

It explicitly answers both 'what' ('Provides AWS Lambda integration patterns for Java with cold start optimization') and 'when' ('Use when deploying Java functions... or implementing serverless Java applications') with concrete trigger phrases, matching the anchor-5 example structure exactly. Neither component is missing or merely implied.

5 / 5

Trigger Term Quality

Triggers include natural phrases like "deploy java lambda", "java lambda cold start", and "aws lambda java performance" that users would plausibly say. It falls short of anchor 5 because common variants such as 'spring to lambda migration', 'graalvm lambda', 'snapstart', or 'java 21 lambda' are absent.

4 / 5

Distinctiveness Conflict Risk

The niche is tightly scoped to Java-on-Lambda with named framework choices (Micronaut vs Raw Java), so it is clearly distinguishable from generic AWS, Java, or serverless skills. Triggers like "micronaut lambda aws" are unlikely to fire for the wrong skill.

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

fernandezbaptiste/developer-kit

Path

plugins/developer-kit-java/skills/aws-lambda-java-integration/SKILL.md

Reviewed

Table of Contents

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