design_apply_hierarchy
A write tool on the Eda Agent MCP server.
This record as markdown: /tools/eda-agent/design-apply-hierarchy.md
What design_apply_hierarchy does on Eda Agent
AI agents use design_apply_hierarchy to create or update resources in Eda Agent, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Eda Agent environment.
Why design_apply_hierarchy is rated Medium
Although the description is empty (lowering confidence), the name 'apply_hierarchy' in a PCB/schematic design automation context indicates a structural modification to design organization. This is categorized as Write rather than Execute because it modifies design metadata/structure rather than executing arbitrary operations, and it is reversible unlike Destructive actions.
From the tool's definition Tool name 'design_apply_hierarchy' combined with context that this is part of a 290+ tool suite for 'schematic, PCB, library & project automation' suggests modification of design structure.
Attacks that exploit this kind of access
The rule that runs design_apply_hierarchy safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Eda Agent, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For design_apply_hierarchy, this is the rule to start with:
design_apply_hierarchy 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 Eda Agent, apply this rule, and every design_apply_hierarchy call is checked against it from then on.
Questions about design_apply_hierarchy
design_apply_hierarchy is a write tool on the Eda Agent MCP server. It is categorised as a Write tool in the Eda Agent MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Eda Agent MCP server in PolicyLayer and add a rule for design_apply_hierarchy: 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 Eda Agent. Nothing to install.
design_apply_hierarchy 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 design_apply_hierarchy 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 design_apply_hierarchy. 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.
design_apply_hierarchy is provided by the Eda Agent MCP server (salitronic/eda-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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