Medium Risk

stream_group_create

Create consumer group. Args: key: The name of the key group_name: Name of consumer group id: ID to start reading from (default "$" for new entries only) mkstream: Create stream if it doesn't exist Returns: Success message or error message

Part of the Awslabs Valkey MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents use stream_group_create to create or modify resources in Awslabs Valkey. 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 stream_group_create 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 Awslabs Valkey.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

amazon-elasticache-memorydb-valkey-mcp-server.yaml
tools:
  stream_group_create:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Awslabs Valkey policy for all 105 tools.

Tool Name stream_group_create
Category Write
Risk Level Medium

View all 105 tools →

Agents calling write-class tools like stream_group_create 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 Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

What does the stream_group_create tool do? +

Create consumer group. Args: key: The name of the key group_name: Name of consumer group id: ID to start reading from (default "$" for new entries only) mkstream: Create stream if it doesn't exist Returns: Success message or error message. It is categorised as a Write tool in the Awslabs Valkey MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on stream_group_create? +

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

What risk level is stream_group_create? +

stream_group_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit stream_group_create? +

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

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

stream_group_create is provided by the Awslabs Valkey MCP server (awslabs.valkey-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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