AI agents call aim_memory_read_all to retrieve information from Mcp Knowledge Graph without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves stored data (memories) without creating, modifying, deleting, or executing anything. It is a straightforward query operation that poses minimal risk; misuse would only expose information the agent already has access to. The low severity reflects that reading memories cannot cause harm beyond potential privacy concerns, which are mitigated by access control at the server level.
From the tool's definition Tool name contains 'read' and description states 'Read all memories in a database' — a pure retrieval operation with no modification or side effects.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access aim_memory_read_all gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Knowledge Graph, and nothing reaches the server without passing your rules. This is the rule we recommend for aim_memory_read_all:
{
"version": "1",
"default": "deny",
"tools": {
"aim_memory_read_all": {}
}
}aim_memory_read_all is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Read all memories in a database. It is categorised as a Read tool in the Mcp Knowledge Graph MCP Server, which means it retrieves data without modifying state.
Register the Mcp Knowledge Graph MCP server in PolicyLayer and add a rule for aim_memory_read_all: 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 Mcp Knowledge Graph. Nothing to install.
aim_memory_read_all 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 aim_memory_read_all 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 aim_memory_read_all. 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.
aim_memory_read_all is provided by the Mcp Knowledge Graph MCP server (shaneholloman/mcp-knowledge-graph). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 10 Mcp Knowledge Graph tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
10 Mcp Knowledge Graph tools catalogued and risk-classified — across an index of 42,500+ MCP servers.