create_memory

Create a new memory entry

SERVERNcp SOURCE@portel/ncp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-portel-dev-ncp/create-memory.md

WHAT IT DOES

What create_memory does on Ncp

AI agents use create_memory to create or update resources in Ncp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ncp environment.

RISK

Why create_memory is rated Medium

This tool creates new data without destructive effects—the created entry can be modified or deleted later. It does not execute arbitrary code, delete data irreversibly, or transfer financial resources. Creation of data entries is classified as Write. Severity is low because memory entries typically have limited blast radius and can be recovered or undone.

From the tool's definition Tool description states 'Create a new memory entry' which is a reversible data creation operation. The name 'create_memory' and description both indicate creating (writing) a new entry to storage.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_memory safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ncp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_memory, this is the rule to start with:

create_memory Rate-limited

create_memory 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_memory": {
      "limits": [
        {
          "counter": "create_memory_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ncp, apply this rule, and every create_memory call is checked against it from then on.

FAQ

Questions about create_memory

What does the create_memory tool do? +

Create a new memory entry. It is categorised as a Write tool in the Ncp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_memory? +

Register the Ncp MCP server in PolicyLayer and add a rule for create_memory: 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 Ncp. Nothing to install.

What risk level is create_memory? +

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

Can I rate-limit create_memory? +

Yes. Add a rate_limit block to the create_memory 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.

How do I block create_memory completely? +

Set action: deny in the PolicyLayer policy for create_memory. 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 create_memory? +

create_memory is provided by the Ncp MCP server (@portel/ncp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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