Creates test stacks, analyzes CloudFormation events, and compares actual vs documented update behavior to validate whether resource property changes trigger replacement or in-place updates. Use when: a user wants to test if a CFN property change causes resource replacement; when investigating stack update behavior or "Update requires" documentation accuracy; when validating whether a workaround (e.g. hash-based logical IDs) is actually necessary; when questioning UpdateRequiresReplacement behavior for immutable properties; when empirical evidence is needed before an architectural decision involving CDK or CloudFormation stack updates.
Does it follow best practices?
Evaluation — 100%
↑ 1.12xAgent success when using this tile
Validation for skill structure
{
"context": "Tests whether the agent knows the correct deployment commands, event inspection commands, and process for executing validation tests.",
"type": "weighted_checklist",
"checklist": [
{
"name": "Initial deployment command",
"description": "execute-validation.sh includes 'cdk deploy' for initial state",
"max_score": 8
},
{
"name": "No approval flag",
"description": "execute-validation.sh uses '--require-approval never' flag on cdk deploy commands",
"max_score": 10
},
{
"name": "Resource ARN recording",
"description": "execute-validation.sh includes step to record or note the table ARN/name after initial deployment",
"max_score": 10
},
{
"name": "Redeploy after change",
"description": "execute-validation.sh shows making the property change and redeploying",
"max_score": 8
},
{
"name": "describe-stack-events command",
"description": "execute-validation.sh or event-analysis.md includes 'aws cloudformation describe-stack-events' command",
"max_score": 15
},
{
"name": "Resource type filter",
"description": "The describe-stack-events command uses --query with ResourceType filter (e.g., ResourceType==`AWS::DynamoDB::Table`)",
"max_score": 12
},
{
"name": "Event field extraction",
"description": "The --query extracts at least 2 of: Timestamp, ResourceStatus, ResourceStatusReason",
"max_score": 10
},
{
"name": "Replacement indicators",
"description": "event-analysis.md explains that DELETE + CREATE events indicate replacement",
"max_score": 12
},
{
"name": "Update indicators",
"description": "event-analysis.md explains that UPDATE_IN_PROGRESS/UPDATE_COMPLETE indicate in-place update",
"max_score": 10
},
{
"name": "Failure handling",
"description": "event-analysis.md or execute-validation.sh mentions stopping/debugging if deployment fails",
"max_score": 5
}
]
}