AI agents call metaharness_drift_from_history to retrieve information from Ruflo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs drift detection by composing and analyzing audit records and trends. The verbs 'finds' and 'composes' indicate data retrieval and analysis operations. There is no indication of data modification, deletion, code execution, or financial operations.
From the tool's definition Tool name contains 'drift_from_history' and description states it 'finds the most recent record' and 'Composes audit-list + oia-audit + audit-trend', indicating querying and analysis of historical audit data without modification or execution of external…
Attacks that exploit this kind of access
iter 53 — one-command drift detection. Composes audit-list + oia-audit + audit-trend: finds the most recent record in. It is categorised as a Read tool in the Ruflo MCP Server, which means it retrieves data without modifying state.
Register the Ruflo MCP server in PolicyLayer and add a rule for metaharness_drift_from_history: 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 Ruflo. Nothing to install.
metaharness_drift_from_history 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 metaharness_drift_from_history 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 metaharness_drift_from_history. 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.
metaharness_drift_from_history is provided by the Ruflo MCP server (ruvnet/ruflo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
metaharness_drift_from_history is one line of Ruflo's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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