measurement.grid_create
Create a normalized perspective grid with rulers, targets, snapping, and links.
This record as markdown: /tools/visionmcp/measurement.grid-create.md
What measurement.grid_create does on Visionmcp
AI agents use measurement.grid_create to create or update resources in Visionmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Visionmcp environment.
Why measurement.grid_create is rated Medium
The tool creates a new normalized perspective grid, which is a reversible data creation action. It does not execute arbitrary code, delete data, move funds, or trigger external operations.
From the tool's definition Tool name contains 'create' and description states 'Create a normalized perspective grid'. This is a creation operation that modifies state (a grid structure with rulers, targets, and links).
Attacks that exploit this kind of access
The rule that runs measurement.grid_create safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Visionmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For measurement.grid_create, this is the rule to start with:
measurement.grid_create stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Visionmcp, apply this rule, and every measurement.grid_create call is checked against it from then on.
Questions about measurement.grid_create
Create a normalized perspective grid with rulers, targets, snapping, and links. It is categorised as a Write tool in the Visionmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Vision MCP server in PolicyLayer and add a rule for measurement.grid_create: 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 Visionmcp. Nothing to install.
measurement.grid_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the measurement.grid_create 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 measurement.grid_create. 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.
measurement.grid_create is provided by the Vision MCP server (joshuahickscorp/visionmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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