create_collection_folder
Create a new folder in a collection
This record as markdown: /tools/delano-postman-mcp-server/create-collection-folder.md
What create_collection_folder does on Postman
AI agents use create_collection_folder to create or update resources in Postman, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Postman environment.
Why create_collection_folder is rated Medium
This tool creates a new organizational folder within a Postman collection. This is a Write action because it modifies data (adds a folder) in a reversible manner—folders can be deleted or reorganized. The blast radius is low because folder creation in a testing/API development tool has minimal downstream impact and no side effects on external systems.
From the tool's definition Tool description states 'Create a new folder in a collection', which is a create operation that modifies the collection structure by adding a new reversible entity.
Attacks that exploit this kind of access
The rule that runs create_collection_folder safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Postman, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_collection_folder, this is the rule to start with:
create_collection_folder 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Postman, apply this rule, and every create_collection_folder call is checked against it from then on.
Questions about create_collection_folder
Create a new folder in a collection. It is categorised as a Write tool in the Postman MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Postman MCP server in PolicyLayer and add a rule for create_collection_folder: 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 Postman. Nothing to install.
create_collection_folder 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 create_collection_folder 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 create_collection_folder. 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.
create_collection_folder is provided by the Postman MCP server (delano/postman-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Postman, and thousands of servers like it.
This server
Across the catalogue