This record as markdown: /tools/io-github-0nork-0nmcp/vault-verify.md
What vault_verify does on 0nmcp
AI agents call vault_verify to retrieve information from 0nmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why vault_verify is rated Low
The verb 'verify' and 'check' denote read-only inspection operations. A sealed connection check is a diagnostic query that retrieves state information without altering data or triggering side effects. While the description is brief and somewhat vague about what 'sealed connection' refers to, the core operation appears to be validation/inspection rather than creation, modification, deletion, or code execution.
From the tool's definition Tool name 'vault_verify' with description 'Check a sealed connection' indicates a verification/checking operation with no modification or execution of external systems.
Attacks that exploit this kind of access
The rule that runs vault_verify safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For vault_verify, this is the rule to start with:
vault_verify is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every vault_verify call is checked against it from then on.
Questions about vault_verify
Check a sealed connection. It is categorised as a Read tool in the 0nmcp MCP Server, which means it retrieves data without modifying state.
Register the 0n MCP server in PolicyLayer and add a rule for vault_verify: 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 0nmcp. Nothing to install.
vault_verify 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 vault_verify 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 vault_verify. 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.
vault_verify is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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