Initializes a serverless application using AWS SAM (Serverless Application Model) CLI. Requirements: - AWS SAM CLI MUST be installed and configured in your environment This tool creates a new SAM project that consists of: - An AWS SAM template to define your infrastructure code - A folder struc...
High parameter count (18 properties)
Part of the AWS Serverless MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents use sam_init to create or modify resources in AWS Serverless MCP Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call sam_init repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach AWS Serverless MCP Server.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
tools:
sam_init:
rules:
- action: allow
rate_limit:
max: 30
window: 60See the full AWS Serverless MCP Server policy for all 32 tools.
Agents calling write-class tools like sam_init have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.
Initializes a serverless application using AWS SAM (Serverless Application Model) CLI. Requirements: - AWS SAM CLI MUST be installed and configured in your environment This tool creates a new SAM project that consists of: - An AWS SAM template to define your infrastructure code - A folder structure that organizes your application - Configuration for your AWS Lambda functions Use this tool to initialize a new project when building a serverless application. This tool generates a project based on a pre-defined template. After calling this tool, modify the code and infrastructure templates to fit the requirements of your application. Usage tips: - Do not use this tool on existing projects as it creates brand new directory. Instead manually create SAM templates in the existing application's directory. - Either select from one of predefined templates, or from the SAM GitHub repo (https://github.com/aws/aws-sam-cli-app-templates) Returns: Dict[str, Any]: Result of the initialization. It is categorised as a Write tool in the AWS Serverless MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Add a rule in your Intercept YAML policy under the tools section for sam_init. 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.
sam_init is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the sam_init 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.
Set action: deny in the Intercept policy for sam_init. 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.
sam_init 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.
Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.