AI agents use create_block_diagram to create or update resources in Claude Patent Creator — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude Patent Creator environment.
The tool creates/generates diagram content (a reversible artifact) as part of patent creation workflows. This is a Write operation—it produces new data without deleting or executing code. Severity is medium because incorrect diagrams could mislead patent applications, but the effect is reversible through updates.
From the tool's definition Tool name 'create_block_diagram' combined with server context 'patent creation and analysis' and sibling tool 'add_diagram_references' indicates generation/creation of diagram artifacts. Description is empty, limiting precision.
Documented attack patterns abuse exactly the kind of access create_block_diagram gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Patent Creator, and nothing reaches the server without passing your rules. This is the rule we recommend for create_block_diagram:
{
"version": "1",
"default": "deny",
"tools": {
"create_block_diagram": {
"limits": [
{
"counter": "create_block_diagram_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_block_diagram 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.
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create_block_diagram. It is categorised as a Write tool in the Claude Patent Creator MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Claude Patent Creator MCP server in PolicyLayer and add a rule for create_block_diagram: 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 Claude Patent Creator. Nothing to install.
create_block_diagram 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 create_block_diagram 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 create_block_diagram. 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.
create_block_diagram is provided by the Claude Patent Creator MCP server (robthepcguy/claude-patent-creator). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 30 Claude Patent Creator tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
30 Claude Patent Creator tools catalogued and risk-classified — across an index of 42,500+ MCP servers.