# witness_verify

Verify chain integrity

Agent View of the PolicyLayer registry record for `witness_verify`. HTML page: https://policylayer.com/tools/ruflo/witness-verify

## Facts

- Tool: `witness_verify`
- 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": "witness_verify",
    "arguments": {}
  }
}
```

## Why witness_verify is rated Low

The verb 'verify' indicates a diagnostic/audit function that retrieves and checks state without side effects. This is characteristic of Read operations. The modest severity reflects that misuse would expose verification logic or timing information but not directly compromise data or execute arbitrary code.

From the tool's own definition: "Tool name 'witness_verify' with description 'Verify chain integrity' suggests a verification/validation operation. Verification typically checks or audits existing state (a read operation) rather than modifying or executing operations."

## Use case

AI agents call witness_verify 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": {
    "witness_verify": {}
  }
}
```

## 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`

---

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