Create a new node in the architecture. 'spec' should be a JSON string defining inputs/outputs/constraints.
AI agents use mmla_create_node to create or update resources in Bluemouse — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Bluemouse environment.
This tool creates new nodes within an architectural system. Creation operations are Write-category actions since they modify system state reversibly (nodes can be updated or removed). Severity is medium because creating nodes affects system configuration and could introduce architectural inconsistencies if misused by an agent, but the effect is bounded to node creation and reversible.
From the tool's definition Tool name 'mmla_create_node' with description 'Create a new node in the architecture' indicates creation of new data/structures.
Documented attack patterns abuse exactly the kind of access mmla_create_node gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Bluemouse, and nothing reaches the server without passing your rules. This is the rule we recommend for mmla_create_node:
{
"version": "1",
"default": "deny",
"tools": {
"mmla_create_node": {
"limits": [
{
"counter": "mmla_create_node_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}mmla_create_node stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Create a new node in the architecture. 'spec' should be a JSON string defining inputs/outputs/constraints. It is categorised as a Write tool in the Bluemouse MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Bluemouse MCP server in PolicyLayer and add a rule for mmla_create_node: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Bluemouse. Nothing to install.
mmla_create_node 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 mmla_create_node rule in your PolicyLayer 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 PolicyLayer policy for mmla_create_node. 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.
mmla_create_node is provided by the Bluemouse MCP server (peijun1700/bluemouse). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 Bluemouse tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
8 Bluemouse tools catalogued and risk-classified — across an index of 42,500+ MCP servers.