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SKILL.md
来源说明 · 只读预览- name
- aws-dynamodb
- description
- Query and manage AWS DynamoDB tables and items.
- metadata
- {"thinkfleetbot":{"emoji":"⚙️","requires":{"bins":"[Truncated]","env":"[Truncated]"}}}
# AWS DynamoDB
Query and manage DynamoDB tables.
## List tables
```bash
aws dynamodb list-tables --output table
```
## Describe table
```bash
aws dynamodb describe-table --table-name my-table | jq '{TableName: .Table.TableName, Status: .Table.TableStatus, ItemCount: .Table.ItemCount, SizeBytes: .Table.TableSizeBytes, KeySchema: .Table.KeySchema, BillingMode: .Table.BillingModeSummary.BillingMode}'
```
## Get item
```bash
aws dynamodb get-item --table-name my-table \
--key '{"pk": {"S": "user#123"}, "sk": {"S": "profile"}}' | jq '.Item'
```
## Query items
```bash
aws dynamodb query --table-name my-table \
--key-condition-expression "pk = :pk" \
--expression-attribute-values '{":pk": {"S": "user#123"}}' \
--query 'Items[*]' | jq .
```
## Query with filter
```bash
aws dynamodb query --table-name my-table \
--key-condition-expression "pk = :pk AND begins_with(sk, :prefix)" \
--expression-attribute-values '{":pk": {"S": "user#123"}, ":prefix": {"S": "order#"}}' \
--query 'Items[*]' | jq .
```
## Scan table (use carefully)
```bash
aws dynamodb scan --table-name my-table --max-items 10 | jq '{Count, ScannedCount, Items: .Items[:3]}'
```
## Put item
```bash
aws dynamodb put-item --table-name my-table \
--item '{"pk": {"S": "user#456"}, "sk": {"S": "profile"}, "name": {"S": "John"}, "email": {"S": "john@example.com"}}'
echo "Item written"
```
## Delete item
```bash
aws dynamodb delete-item --table-name my-table \
--key '{"pk": {"S": "user#456"}, "sk": {"S": "profile"}}'
echo "Item deleted"
```
## Table metrics
```bash
aws cloudwatch get-metric-statistics --namespace AWS/DynamoDB \
--metric-name ConsumedReadCapacityUnits --dimensions Name=TableName,Value=my-table \
--start-time $(date -u -d '1 hour ago' +%Y-%m-%dT%H:%M:%S) --end-time $(date -u +%Y-%m-%dT%H:%M:%S) \
--period 300 --statistics Sum --output table
```
## Notes
- Prefer `query` over `scan`; scans read every item and are expensive.
- DynamoDB uses typed attributes (`S` for string, `N` for number, `B` for binary, etc.).
- Confirm before writing or deleting items.
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