Capture a camera image with a grid
AI agents call capture_with_grid to retrieve information from Mycobot without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only captures and returns image data from the robot's camera with a grid visualization aid. It performs no write operations, does not execute robot movements, and has no destructive or financial consequences. The only information output is read-only visual feedback used for subsequent decision-making by other tools like 'run'. Misuse (e.g., capturing repeatedly) would have minimal blast radius.
From the tool's definition The tool 'capture_with_grid' captures a camera image with a grid overlay. The description indicates it retrieves visual data without modifying robot state or executing movements.
Documented attack patterns abuse exactly the kind of access capture_with_grid gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mycobot, and nothing reaches the server without passing your rules. This is the rule we recommend for capture_with_grid:
{
"version": "1",
"default": "deny",
"tools": {
"capture_with_grid": {}
}
}capture_with_grid is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Capture a camera image with a grid. It is categorised as a Read tool in the Mycobot MCP Server, which means it retrieves data without modifying state.
Register the Mycobot MCP server in PolicyLayer and add a rule for capture_with_grid: 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 Mycobot. Nothing to install.
capture_with_grid 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 capture_with_grid 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 capture_with_grid. 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.
capture_with_grid is provided by the Mycobot MCP server (neka-nat/mycobot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mycobot, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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5 Mycobot tools catalogued and risk-classified — across an index of 43,000+ MCP servers.