Intelligent file upload
AI agents use arcas_onlineeda_upload_file to create or update resources in Arcas OnlineEDA MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Arcas OnlineEDA MCP Server environment.
File upload operations create or add new data to a system (Write category). Severity is medium because uploading files to an EDA platform could introduce malicious designs, corrupt project states, or trigger downstream verification processes with unintended consequences, but the operation is reversible (files can typically be deleted or replaced).
From the tool's definition Tool name contains 'upload_file' and description states 'Intelligent file upload', indicating creation or modification of data on the Arcas platform.
Attacks that exploit this kind of access
Intelligent file upload. It is categorised as a Write tool in the Arcas OnlineEDA MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Arcas OnlineEDA MCP Server MCP server in PolicyLayer and add a rule for arcas_onlineeda_upload_file: 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 Arcas OnlineEDA MCP Server. Nothing to install.
arcas_onlineeda_upload_file 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 arcas_onlineeda_upload_file 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 arcas_onlineeda_upload_file. 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.
arcas_onlineeda_upload_file is provided by the Arcas OnlineEDA MCP Server MCP server (ssql2014/arcas-onlineeda-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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