List conversation checkpoints, most recent first. Cross-session by default.
AI agents call list_checkpoints to retrieve information from Local Rag without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists existing conversation checkpoints without creating, modifying, or deleting anything. It is a read-only operation that returns information about checkpoints for viewing purposes. The lack of any side effects, combined with the explicit 'List' action verb, clearly places it in the Read category.
From the tool's definition Tool name 'list_checkpoints' and description 'List conversation checkpoints, most recent first' indicate a retrieval/query operation with no modification of data.
Documented attack patterns abuse exactly the kind of access list_checkpoints gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Local Rag, and nothing reaches the server without passing your rules. This is the rule we recommend for list_checkpoints:
{
"version": "1",
"default": "deny",
"tools": {
"list_checkpoints": {}
}
}list_checkpoints is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List conversation checkpoints, most recent first. Cross-session by default. It is categorised as a Read tool in the Local Rag MCP Server, which means it retrieves data without modifying state.
Register the Local Rag MCP server in PolicyLayer and add a rule for list_checkpoints: 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 Local Rag. Nothing to install.
list_checkpoints 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 list_checkpoints 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 list_checkpoints. 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.
list_checkpoints is provided by the Local Rag MCP server (thewinci/mimirs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Local Rag, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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29 Local Rag tools catalogued and risk-classified — across an index of 43,000+ MCP servers.