sch_add_datafile_link
A write tool on the Eda Agent MCP server.
This record as markdown: /tools/eda-agent/sch-add-datafile-link.md
What sch_add_datafile_link does on Eda Agent
AI agents use sch_add_datafile_link 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_add_datafile_link is rated Medium
The tool performs a creation/linking operation ('add') on schematic data. Without explicit description, we infer from the name that it creates or modifies an association between schematic elements and external datafiles. This is Write-category (reversible modification) rather than Execute because it targets data structure modification rather than arbitrary code execution.
From the tool's definition Tool name 'sch_add_datafile_link' indicates adding or linking a datafile to a schematic, which modifies schematic project state. In the context of Altium Designer, adding datafile links is a reversible modification to design artifacts.
Attacks that exploit this kind of access
The rule that runs sch_add_datafile_link 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_add_datafile_link, this is the rule to start with:
sch_add_datafile_link 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_add_datafile_link call is checked against it from then on.
Questions about sch_add_datafile_link
sch_add_datafile_link 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_add_datafile_link: 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_add_datafile_link 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_add_datafile_link 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_add_datafile_link. 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_add_datafile_link 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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