roam_recall
Retrieve all stored memories on page titled ROAM_MEMORIES_TAG, or tagged block content with the same name. Returns a combined, deduplicated list of memories. Optionally filter blocks with a specific tag and sort by creation date.
This record as markdown: /tools/2b3pro-roam-research-mcp/roam-recall.md
What roam_recall does on Roam Research
AI agents call roam_recall 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.
Why roam_recall is rated Low
This tool retrieves and queries existing data (memories stored on a specific page or tagged blocks) without modifying, creating, or deleting any information. The optional filtering and sorting parameters do not change the fundamental nature of the operation—it remains a passive data retrieval function. The blast radius of misuse is minimal; an agent could only read information already stored by the user.
From the tool's definition Tool description states it "Retrieve[s] all stored memories" and "Returns a combined, deduplicated list of memories." The operations are read-only queries with filtering and sorting—no creation, modification, or deletion of data.
Attacks that exploit this kind of access
The rule that runs roam_recall 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_recall, this is the rule to start with:
roam_recall is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Roam Research, apply this rule, and every roam_recall call is checked against it from then on.
Questions about roam_recall
Retrieve all stored memories on page titled ROAM_MEMORIES_TAG, or tagged block content with the same name. Returns a combined, deduplicated list of memories. Optionally filter blocks with a specific tag and sort by creation date. It is categorised as a Read tool in the Roam Research MCP Server, which means it retrieves data without modifying state.
Register the Roam Research MCP server in PolicyLayer and add a rule for roam_recall: 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.
roam_recall is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the roam_recall 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 roam_recall. 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.
roam_recall 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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