# metaharness_drift_from_history

iter 53 — one-command drift detection. Composes audit-list + oia-audit + audit-trend: finds the most recent record in

Agent View of the PolicyLayer registry record for `metaharness_drift_from_history`. HTML page: https://policylayer.com/tools/ruflo/metaharness-drift-from-history

## Facts

- Tool: `metaharness_drift_from_history`
- Server: Ruflo (`ruvnet/ruflo`) — https://policylayer.com/tools/ruflo.md
- Homepage: https://github.com/ruvnet/ruflo
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "metaharness_drift_from_history",
    "arguments": {}
  }
}
```

## Why metaharness_drift_from_history is rated Low

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 own 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…"

## Use case

AI agents call metaharness_drift_from_history to retrieve information from Ruflo without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Ruflo:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "metaharness_drift_from_history": {}
  }
}
```

## Other tools on Ruflo (495)

- `agent_terminate` — Destructive — https://policylayer.com/tools/ruflo/agent-terminate.md
- `agentdb_batch` — Destructive — https://policylayer.com/tools/ruflo/agentdb-batch.md
- `agentdb_causal-edge-delete` — Destructive — https://policylayer.com/tools/ruflo/agentdb-causal-edge-delete.md
- `agentdb_causal-node-delete` — Destructive — https://policylayer.com/tools/ruflo/agentdb-causal-node-delete.md
- `agentdb_hierarchical-delete` — Destructive — https://policylayer.com/tools/ruflo/agentdb-hierarchical-delete.md
- `autopilot_reset` — Destructive — https://policylayer.com/tools/ruflo/autopilot-reset.md
- `config_reset` — Destructive — https://policylayer.com/tools/ruflo/config-reset.md
- `federation_wg_keyrotate` — Destructive — https://policylayer.com/tools/ruflo/federation-wg-keyrotate.md
- `hooks_intelligence-reset` — Destructive — https://policylayer.com/tools/ruflo/hooks-intelligence-reset.md
- `hooks_worker-cancel` — Destructive — https://policylayer.com/tools/ruflo/hooks-worker-cancel.md
- `iot_device_remove` — Destructive — https://policylayer.com/tools/ruflo/iot-device-remove.md
- `iot_device_unpair` — Destructive — https://policylayer.com/tools/ruflo/iot-device-unpair.md
- `iot_firmware_rollout_rollback` — Destructive — https://policylayer.com/tools/ruflo/iot-firmware-rollout-rollback.md
- `iot_fleet_delete` — Destructive — https://policylayer.com/tools/ruflo/iot-fleet-delete.md
- `iot_fleet_remove_device` — Destructive — https://policylayer.com/tools/ruflo/iot-fleet-remove-device.md
- `managed_agent_terminate` — Destructive — https://policylayer.com/tools/ruflo/managed-agent-terminate.md
- `memory_delete` — Destructive — https://policylayer.com/tools/ruflo/memory-delete.md
- `policy_revoke` — Destructive — https://policylayer.com/tools/ruflo/policy-revoke.md
- `ruvector_delete` — Destructive — https://policylayer.com/tools/ruflo/ruvector-delete.md
- `session_delete` — Destructive — https://policylayer.com/tools/ruflo/session-delete.md
- `system_reset` — Destructive — https://policylayer.com/tools/ruflo/system-reset.md
- `task_cancel` — Destructive — https://policylayer.com/tools/ruflo/task-cancel.md
- `wasm_agent_reset` — Destructive — https://policylayer.com/tools/ruflo/wasm-agent-reset.md
- `wasm_gallery_remove_custom` — Destructive — https://policylayer.com/tools/ruflo/wasm-gallery-remove-custom.md
- `workflow_cancel` — Destructive — https://policylayer.com/tools/ruflo/workflow-cancel.md
- `workflow_delete` — Destructive — https://policylayer.com/tools/ruflo/workflow-delete.md
- `agent_pool` — Execute — https://policylayer.com/tools/ruflo/agent-pool.md
- `agent_spawn` — Execute — https://policylayer.com/tools/ruflo/agent-spawn.md
- `agentdb_consolidate` — Execute — https://policylayer.com/tools/ruflo/agentdb-consolidate.md
- `agentdb_route` — Execute — https://policylayer.com/tools/ruflo/agentdb-route.md
- …and 465 more: https://policylayer.com/tools/ruflo.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=ruflo · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/ruflo