sch_place_junction
A write tool on the Eda Agent MCP server.
This record as markdown: /tools/eda-agent/sch-place-junction.md
What sch_place_junction does on Eda Agent
AI agents use sch_place_junction 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 sch_place_junction is rated Medium
Based on the tool name within the Altium Designer automation context, this tool appears to create or modify schematic elements by placing junctions (electrical connection points). This is a reversible Write operation—junctions can be added and removed without permanent data loss.
From the tool's definition Tool name 'sch_place_junction' indicates placement of a junction element in a schematic. Junctions are non-destructive modifications to schematic design.
Attacks that exploit this kind of access
The rule that runs sch_place_junction 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 sch_place_junction, this is the rule to start with:
sch_place_junction 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 sch_place_junction call is checked against it from then on.
Questions about sch_place_junction
sch_place_junction 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 sch_place_junction: 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.
sch_place_junction 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 sch_place_junction 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 sch_place_junction. 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.
sch_place_junction 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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