AI agents call fin_deepagent_messages to retrieve information from OpenFinClaw CLI without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves message history from a conversation thread without creating, modifying, deleting, or executing any operations. It is a simple query/read operation with minimal risk. Even in the context of financial AI agents, reading historical messages poses no direct financial or operational harm—it only accesses existing data.
From the tool's definition Tool description explicitly states 'Read messages in a DeepAgent thread'. The verb 'Read' and retrieval of existing messages indicates data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access fin_deepagent_messages gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OpenFinClaw CLI, and nothing reaches the server without passing your rules. This is the rule we recommend for fin_deepagent_messages:
{
"version": "1",
"default": "deny",
"tools": {
"fin_deepagent_messages": {}
}
}fin_deepagent_messages is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Read messages in a DeepAgent thread. It is categorised as a Read tool in the OpenFinClaw CLI MCP Server, which means it retrieves data without modifying state.
Register the OpenFinClaw CLI MCP server in PolicyLayer and add a rule for fin_deepagent_messages: 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 OpenFinClaw CLI. Nothing to install.
fin_deepagent_messages 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 fin_deepagent_messages 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 fin_deepagent_messages. 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.
fin_deepagent_messages is provided by the OpenFinClaw CLI MCP server (mirror29/openfinclaw-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OpenFinClaw CLI, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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21 OpenFinClaw CLI tools catalogued and risk-classified — across an index of 43,000+ MCP servers.