This record as markdown: /tools/eda-agent/obj-count.md
What obj_count does on Eda Agent
AI agents call obj_count to retrieve information from Eda Agent without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why obj_count is rated Low
Based on naming convention, 'obj_count' most likely retrieves a count of objects (schematic elements, PCB components, library items, etc.) without modifying state. The 'count' verb implies data retrieval. However, confidence is moderate because the description is empty and we cannot verify the exact operation. It could theoretically execute code if it triggers backend logic, but the name suggests a simple query.
From the tool's definition Tool name 'obj_count' suggests a counting/enumeration operation, typical of Read operations. Description is empty, limiting definitive classification.
Attacks that exploit this kind of access
The rule that runs obj_count 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 obj_count, this is the rule to start with:
obj_count is read-only, so it stays allowed. 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 obj_count call is checked against it from then on.
Questions about obj_count
obj_count is a read tool on the Eda Agent MCP server. It is categorised as a Read tool in the Eda Agent MCP Server, which means it retrieves data without modifying state.
Register the Eda Agent MCP server in PolicyLayer and add a rule for obj_count: 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.
obj_count is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the obj_count 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 obj_count. 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.
obj_count 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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