get_resource

Retrieve shared resource. If manifest has source_path: use Read tool on that path (content field undefined). Changed etag means re-read source_path file. Supports long-polling.

ServerBrainstorm
CategoryRead

How to control get_resource ↓

WHAT IT DOES

What get_resource does on Brainstorm

AI agents call get_resource to retrieve information from Brainstorm without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why get_resource needs a policy

This tool retrieves data from shared resources without modifying, deleting, or executing operations. It only reads content and detects changes via ETags, making it a classic Read operation with minimal blast radius if misused.

From the tool's definition Tool name is 'get_resource' and description explicitly states 'Retrieve shared resource' and 'use Read tool on that path', indicating data retrieval with no side effects.

Documented attack patterns abuse exactly the kind of access get_resource gives an agent:

POLICY

How to control get_resource

PolicyLayer is an MCP gateway — it sits between your AI agents and Brainstorm, and nothing reaches the server without passing your rules. This is the rule we recommend for get_resource:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_resource": {}
  }
}

get_resource is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Brainstorm — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Brainstorm tools

Destructive delete_project Delete a project. Only the agent that created the project can delete it. Destructive delete_resource Delete a resource from the project. Only the resource creator can delete it. Write handover_coordinator Transfer coordinator role to another member. Only current coordinator can initiate. Target Write join_project Join a project with agent name. Session must be initialized by calling status tool first. Write leave_project Leave a project gracefully. Archives your unread messages and removes your membership. You Write store_resource Store shared resource. Use content for <50KB, source_path for >50KB (max 500KB). With sour Write archive_project Mark a project as archived (inactive but recoverable). Only the project creator can archiv Write create_project Create a new cooperation project. Projects are the organizing unit for agent collaboration

All 17 Brainstorm tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_resource

What does the get_resource tool do? +

Retrieve shared resource. If manifest has source_path: use Read tool on that path (content field undefined). Changed etag means re-read source_path file. Supports long-polling. It is categorised as a Read tool in the Brainstorm MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_resource? +

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

What risk level is get_resource? +

get_resource is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_resource? +

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

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

get_resource is provided by the Brainstorm MCP server (theodorstorm/brainstorm-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Brainstorm tool call.

Start from Brainstorm, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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17 Brainstorm tools catalogued and risk-classified — across an index of 43,000+ MCP servers.