AWS SDK Java V2 Rds

What it does

When your agent uses it

• Managing Amazon RDS database instances
• Parameter groups

Example prompts

• “Use the aws-sdk-java-v2-rds skill to provide AWS RDS (Relational Database Service) management patterns using AWS SDK for Java 2.x”
• “/aws-sdk-java-v2-rds”

Requirements

• Pre-approved tools (allowed-tools): Read, Write, Edit, Bash, Glob, Grep

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

1. 1Add Dependencies - Include AWS RDS SDK dependency and database drivers
2. 2Create RDS Client - Instantiate RdsClient with proper region and credentials
3. 3Create DB Instance - Use createDBInstance() with appropriate configuration
4. 4Configure Security - Set up VPC security groups and encryption
5. 5Set Up Backups - Configure automated backup windows and retention
6. 6Monitor Status - Use describeDBInstances() to check instance state
7. 7Create Snapshots - Take manual snapshots before major changes
8. 8Handle Failover - Configure Multi-AZ for high availability

What it can do on your machine

Read from SKILL.md and the folder at commit fe73fb3. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Edit
  • Bash
  • Glob
  • Grep

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are java and xml).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

AWS SDK Java V2 Rds loads about 2.2k tokens when it runs, and up to ~8.6k if it reads all its reference files. Until then it costs about 62 tokens; SKILL.md has 419 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~62

When it runs · the whole SKILL.md, loaded when a task matches

~2.2k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~8.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NotePre-approves every shell command (allowed-tools: Bash)SKILL.md

  allowed-tools: Read, Write, Edit, Bash, Glob, Grep

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from giuseppe-trisciuoglio/developer-kit at commit fe73fb3, republished under its MIT licence (© giuseppe-trisciuoglio). 419 words, ~2,242 tokens.

name

aws-sdk-java-v2-rds

description

Provides AWS RDS (Relational Database Service) management patterns using AWS SDK for Java 2.x. Use when creating, modifying, monitoring, or managing Amazon RDS database instances, snapshots, parameter groups, and configurations.

allowed-tools

Read, Write, Edit, Bash, Glob, Grep

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rds.RdsClient;

RdsClient rdsClient = RdsClient.builder()
    .region(Region.US_EAST_1)
    .build();

// Use client
describeInstances(rdsClient);

// Always close the client
rdsClient.close();

import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.http.apache.ApacheHttpClient;

RdsClient rdsClient = RdsClient.builder()
    .region(Region.US_WEST_2)
    .credentialsProvider(ProfileCredentialsProvider.create("myprofile"))
    .httpClient(ApacheHttpClient.builder()
        .connectionTimeout(Duration.ofSeconds(30))
        .socketTimeout(Duration.ofSeconds(60))
        .build())
    .build();

DescribeDbInstancesResponse response = rdsClient.describeDBInstances();
for (DBInstance instance : response.dbInstances()) {
    System.out.println(instance.dbInstanceArn() + " - " + instance.dbInstanceStatus());
}

CreateDbInstanceRequest request = CreateDbInstanceRequest.builder()
    .dbInstanceIdentifier(dbInstanceIdentifier)
    .dbName(dbName)
    .engine("postgres")
    .engineVersion("15.4")
    .dbInstanceClass("db.t3.micro")
    .allocatedStorage(20)
    .masterUsername(masterUsername)
    .masterUserPassword(masterPassword)
    .publiclyAccessible(false)
    .build();

CreateDbInstanceResponse response = rdsClient.createDBInstance(request);

// VALIDATION CHECKPOINT: Wait for instance to be available
rdsClient.waiter().waitUntilDBInstanceAvailable(
    DescribeDbInstancesRequest.builder().dbInstanceIdentifier(dbInstanceIdentifier).build()
);
System.out.println("Instance " + dbInstanceIdentifier + " is available!");

CreateDbParameterGroupRequest request = CreateDbParameterGroupRequest.builder()
    .dbParameterGroupName(groupName)
    .dbParameterGroupFamily("postgres15")
    .description(description)
    .build();
rdsClient.createDBParameterGroup(request);

CreateDbSnapshotRequest request = CreateDbSnapshotRequest.builder()
    .dbInstanceIdentifier(dbInstanceIdentifier)
    .dbSnapshotIdentifier(snapshotIdentifier)
    .build();
CreateDbSnapshotResponse response = rdsClient.createDBSnapshot(request);

ModifyDbInstanceRequest request = ModifyDbInstanceRequest.builder()
    .dbInstanceIdentifier(dbInstanceIdentifier)
    .dbInstanceClass(newInstanceClass)
    .applyImmediately(false)
    .build();
rdsClient.modifyDBInstance(request);

// VALIDATION CHECKPOINT: Verify instance exists and check status
DBInstance instance = rdsClient.describeDBInstances(
    DescribeDbInstancesRequest.builder().dbInstanceIdentifier(dbInstanceIdentifier).build()
).dbInstances().get(0);

if ("available".equals(instance.dbInstanceStatus())) {
    DeleteDbInstanceRequest request = DeleteDbInstanceRequest.builder()
        .dbInstanceIdentifier(dbInstanceIdentifier)
        .skipFinalSnapshot(false)
        .finalDBSnapshotIdentifier(snapshotId)
        .build();
    rdsClient.deleteDBInstance(request);
}

public String createSecurePostgreSQLInstance(RdsClient rdsClient,
                                            String instanceIdentifier,
                                            String dbName,
                                            String masterUsername,
                                            String masterPassword,
                                            String vpcSecurityGroupId) {
    // Create instance with security settings
    CreateDbInstanceRequest request = CreateDbInstanceRequest.builder()
        .dbInstanceIdentifier(instanceIdentifier)
        .dbName(dbName)
        .masterUsername(masterUsername)
        .masterUserPassword(masterPassword)
        .engine("postgres")
        .engineVersion("15.4")
        .dbInstanceClass("db.t3.micro")
        .allocatedStorage(20)
        .storageEncrypted(true)
        .vpcSecurityGroupIds(vpcSecurityGroupId)
        .publiclyAccessible(false)
        .multiAZ(true)
        .backupRetentionPeriod(7)
        .deletionProtection(true)
        .build();

    rdsClient.createDBInstance(request);

    // VALIDATION: Wait for instance availability
    rdsClient.waiter().waitUntilDBInstanceAvailable(
        DescribeDbInstancesRequest.builder().dbInstanceIdentifier(instanceIdentifier).build()
    );
    System.out.println("Instance " + instanceIdentifier + " is available!");
    return instanceIdentifier;
}

try (RdsClient rdsClient = RdsClient.builder().region(Region.US_EAST_1).build()) {
    // Use client
}

<dependency>
    <groupId>software.amazon.awssdk</groupId>
    <artifactId>rds</artifactId>
    <version>2.20.0</version>
</dependency>
<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>42.6.0</version>
</dependency>

© giuseppe-trisciuoglio, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in plugins/developer-kit-java/skills/aws-sdk-java-v2-rds of giuseppe-trisciuoglio/developer-kit.

• SKILL.md
• references/api-reference.md
• references/lambda-integration.md
• references/spring-boot-integration.md

Open the folder on GitHubat commit fe73fb3