obj_clear_highlights
Clear all net highlights in the active schematic or PCB document.
This record as markdown: /tools/altium-mcp-suite/obj-clear-highlights.md
What obj_clear_highlights does on Altium-MCP-Suite
AI agents use obj_clear_highlights to create or update resources in Altium-MCP-Suite, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Altium-MCP-Suite environment.
Why obj_clear_highlights is rated Medium
Clearing highlights modifies the visual/display state of a document (removes highlight markings), but does not delete design data or execute code. It is a reversible UI state change — highlights can be reapplied — making this a Write-level operation. Blast radius is low since no structural design data is affected.
From the tool's definition Clear all net highlights in the active schematic or PCB document
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs obj_clear_highlights safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Altium-MCP-Suite, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For obj_clear_highlights, this is the rule to start with:
obj_clear_highlights 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 Altium-MCP-Suite, apply this rule, and every obj_clear_highlights call is checked against it from then on.
Questions about obj_clear_highlights
Clear all net highlights in the active schematic or PCB document. It is categorised as a Write tool in the Altium-MCP-Suite MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Altium-MCP-Suite MCP server in PolicyLayer and add a rule for obj_clear_highlights: 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 Altium-MCP-Suite. Nothing to install.
obj_clear_highlights 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 obj_clear_highlights 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_clear_highlights. 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_clear_highlights is provided by the Altium-MCP-Suite MCP server (M-R-Abedini/Altium-MCP-Suite). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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