This record as markdown: /tools/io-github-0nork-0nmcp/deed-verify.md
What deed_verify does on 0nmcp
AI agents call deed_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 deed_verify is rated Low
The verb 'verify' implies checking or confirming the validity/authenticity of a business deed against some reference or database. This is fundamentally a read operation with no side effects—it retrieves information to validate, but does not create, modify, or destroy data. Even if it checks against external authorities, the operation itself is passive query-like activity.
From the tool's definition Tool name and description indicate verification/validation of an existing business deed: 'Verify a Business Deed'. Verification is a read operation that queries or checks data without creating, modifying, deleting, or executing external commands.
Attacks that exploit this kind of access
The rule that runs deed_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 deed_verify, this is the rule to start with:
deed_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 deed_verify call is checked against it from then on.
Questions about deed_verify
Verify a Business Deed. 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 deed_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.
deed_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 deed_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 deed_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.
deed_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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