✍️ [CREATE NEW] Create a new memory bank file for a specific project. Use when you need to create brand new files. Automatically checks if file already exists and provides helpful context about project state.
AI agents use memory_bank_write to create or update resources in Memory Bank Mcp Mongodb — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Memory Bank Mcp Mongodb environment.
This tool creates new files in a MongoDB-backed memory bank system. File creation is a reversible write operation (files can be deleted via memory_bank_delete_file). The severity is medium rather than high because: (1) it operates within isolated projects, limiting blast radius; (2) write operations are generally reversible; (3) the tool includes safeguards ('automatically checks if file already exists').
From the tool's definition Tool name 'memory_bank_write' with description stating '[CREATE NEW] Create a new memory bank file' explicitly indicates file creation capability.
Attacks that exploit this kind of access
✍️ [CREATE NEW] Create a new memory bank file for a specific project. Use when you need to create brand new files. Automatically checks if file already exists and provides helpful context about project state. It is categorised as a Write tool in the Memory Bank Mcp Mongodb MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Memory Bank Mcp Mongodb MCP server in PolicyLayer and add a rule for memory_bank_write: 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 Memory Bank Mcp Mongodb. Nothing to install.
memory_bank_write 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 memory_bank_write 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 memory_bank_write. 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.
memory_bank_write is provided by the Memory Bank Mcp Mongodb MCP server (sato-isolated/memory-bank-mcp-mongo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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