roam_get_subpages

Fetch all sub-pages (namespace children) of a given page prefix. Matches by page title prefix — pages titled

SERVERRoam Research SOURCE2b3pro/roam-research-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/2b3pro-roam-research-mcp/roam-get-subpages.md

WHAT IT DOES

What roam_get_subpages does on Roam Research

AI agents call roam_get_subpages to retrieve information from Roam Research without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why roam_get_subpages is rated Low

This tool retrieves hierarchical page structure data from Roam Research without modifying, deleting, or executing any operations. It is a straightforward data query with no reversible or irreversible changes, matching the 'Read' category definition.

From the tool's definition Tool name 'roam_get_subpages' and description 'Fetch all sub-pages' indicates a retrieval operation. The description explicitly states 'Fetch' and 'Matches by page title prefix', which are read-only query operations with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs roam_get_subpages safely

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

roam_get_subpages Allowed

roam_get_subpages is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about roam_get_subpages

What does the roam_get_subpages tool do? +

Fetch all sub-pages (namespace children) of a given page prefix. Matches by page title prefix — pages titled. It is categorised as a Read tool in the Roam Research MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on roam_get_subpages? +

Register the Roam Research MCP server in PolicyLayer and add a rule for roam_get_subpages: 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 Roam Research. Nothing to install.

What risk level is roam_get_subpages? +

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

Can I rate-limit roam_get_subpages? +

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

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

roam_get_subpages is provided by the Roam Research MCP server (2b3pro/roam-research-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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