Low Risk

esm_kafka_resolution

Provides targeted resolutions for Kafka Event Source Mapping timeout issues. Based on the identified timeout location (pre-broker, post-broker, etc.), this tool offers specific troubleshooting steps and configuration recommendations to resolve connectivity, authentication, and processing issues ...

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

AI agents call esm_kafka_resolution to retrieve information from AWS Serverless 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.

Even though esm_kafka_resolution 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.

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

aws-serverless-mcp-server.yaml
tools:
  esm_kafka_resolution:
    rules:
      - action: allow

See the full AWS Serverless MCP Server policy for all 32 tools.

Tool Name esm_kafka_resolution
Category Read
Risk Level Low

View all 32 tools →

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

Browse the full MCP Attack Database →

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

What does the esm_kafka_resolution tool do? +

Provides targeted resolutions for Kafka Event Source Mapping timeout issues. Based on the identified timeout location (pre-broker, post-broker, etc.), this tool offers specific troubleshooting steps and configuration recommendations to resolve connectivity, authentication, and processing issues between Lambda functions and MSK Kafka clusters. Args: ctx: The execution context issue_type: The specific timeout scenario to address Returns: Dict containing issue descriptions and step-by-step resolution instructions. It is categorised as a Read tool in the AWS Serverless MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on esm_kafka_resolution? +

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

What risk level is esm_kafka_resolution? +

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

Can I rate-limit esm_kafka_resolution? +

Yes. Add a rate_limit block to the esm_kafka_resolution 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 esm_kafka_resolution completely? +

Set action: deny in the Intercept policy for esm_kafka_resolution. 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 esm_kafka_resolution? +

esm_kafka_resolution is provided by the AWS Serverless MCP Server MCP server (awslabs.aws-serverless-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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