# DynamoDB Capacity Calculator AI Agent Connect

> Deterministic AWS DynamoDB capacity, partition, and burst limit calculator.

## Overview
- **Category:** devops
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/vk_preview_ZefjDmgFN1v3VLB1hsGijrOLqyqhzlTSkH3i1nws/ai-agent-connect
- **Tags:** dynamodb, aws, capacity, provisioning, database-management

## Description

This MCP server provides precise calculations for AWS DynamoDB provisioning. Use `calculate_provisioned_capacity` to determine exact RCU and WCU requirements based on item size and request rates. Use `analyze_partition_health` to identify hot partition risks and calculate required partition counts. Use `check_item_and_burst_limits` to verify if items exceed the 400 KB limit and to estimate available burst capacity for specific timeframes.

## Tools

### analyze_partition_health
Evaluates if the workload will cause partition exhaustion or if the data distribution is healthy

### calculate_provisioned_capacity
Calculates the exact RCU and WCU required based on workload volume and item characteristics

### check_item_and_burst_limits
Checks for oversized items and calculates available burst capacity for a given timeframe

## Prompt Examples

**Prompt:** 
```
Calculate the RCU and WCU needed for 50 reads/sec and 20 writes/sec with a 4 KB item size using eventual consistency.
```

**Response:** 
```
The required capacity is 50 RCU and 20 WCU.
```

**Prompt:** 
```
Will a single partition key with 4000 RCU cause a hot partition?
```

**Response:** 
```
Yes, a single partition key exceeding 3000 RCU is flagged as a hot partition risk.
```

**Prompt:** 
```
Check if an item of 500 KB is valid for DynamoDB.
```

**Response:** 
```
No, the item is too large as it exceeds the 400 KB limit.
```

## Frequently Asked Questions

**How is RCU calculated?**
RCU is calculated by multiplying read operations by item size, then dividing by 4 for eventual consistency or by 2 for strong consistency, rounding up to the nearest whole number.

**What defines a hot partition?**
A partition is considered hot if the throughput of a single partition key exceeds 3000 RCU or 1000 WCU.

**Can I check for oversized items?**
Yes, use `check_item_and_burst_limits` to flag if any item exceeds the 400 KB DynamoDB limit.