list_table_buckets

List all S3 table buckets for your AWS account. Permissions: You must have the s3tables:ListTableBuckets permission to use this operation.

Part of the AWS S3 Tables MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

awslabs.s3-tables-mcp-server Read

// WHEN AI AGENTS USE THIS TOOL

AI agents call list_table_buckets to retrieve information from AWS S3 Tables MCP Server without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

// WHY ENFORCE A POLICY ON LIST_TABLE_BUCKETS

Even though list_table_buckets only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

// RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

aws-s3-tables-mcp-server.yaml

tools:
  list_table_buckets:
    rules:
      - action: allow

See the full AWS S3 Tables MCP Server policy for all 16 tools.

// DETAILS

Tool Name list_table_buckets

Category Read

MCP Server AWS S3 Tables MCP Server MCP Server

Risk Level Low

// MORE AWS S3 TABLES MCP SERVER TOOLS

Write create_namespace Write create_table Write create_table_bucket Write import_csv_to_table Write import_parquet_to_table Write rename_table Write update_table_metadata_location Read append_rows_to_table

View all 16 tools →

// WHAT CAN GO WRONG

Agents calling read-class tools like list_table_buckets have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER READ TOOLS ACROSS MCP SERVERS

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

Firecrawl Web Scraping Server firecrawl_check_crawl_status Firecrawl Web Scraping Server firecrawl_crawl Firecrawl Web Scraping Server firecrawl_deep_research Firecrawl Web Scraping Server firecrawl_extract Firecrawl Web Scraping Server firecrawl_map Firecrawl Web Scraping Server firecrawl_scrape

// RELATED READING

// FAQ

What does the list_table_buckets tool do? +

List all S3 table buckets for your AWS account. Permissions: You must have the s3tables:ListTableBuckets permission to use this operation.. It is categorised as a Read tool in the AWS S3 Tables MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_table_buckets? +

Add a rule in your Intercept YAML policy under the tools section for list_table_buckets. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the AWS S3 Tables MCP Server MCP server.

What risk level is list_table_buckets? +

list_table_buckets is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_table_buckets? +

Yes. Add a rate_limit block to the list_table_buckets rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block list_table_buckets completely? +

Set action: deny in the Intercept policy for list_table_buckets. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides list_table_buckets? +

list_table_buckets is provided by the AWS S3 Tables MCP Server MCP server (awslabs.s3-tables-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

list_table_buckets

Let agents act without letting them run wild.