Compare two presets and return what changed between them. Useful for understanding what a client override changes vs the base. Args: - preset_a (string): First preset ID - preset_b (string): Second preset ID - scope (
AI agents call diff_presets to retrieve information from UI Preset MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a comparison operation between two presets and returns the differences. It retrieves and analyzes existing data without creating, modifying, deleting, executing commands, or moving resources. The operation is informational in nature—understanding changes between presets—making it a Read category tool.
From the tool's definition Tool description states 'Compare two presets and return what changed between them.' The verb 'compare' and 'return' indicate data retrieval only.
Attacks that exploit this kind of access
Compare two presets and return what changed between them. Useful for understanding what a client override changes vs the base. Args: - preset_a (string): First preset ID - preset_b (string): Second preset ID - scope (. It is categorised as a Read tool in the UI Preset MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UI Preset MCP Server MCP server in PolicyLayer and add a rule for diff_presets: 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 UI Preset MCP Server. Nothing to install.
diff_presets 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 diff_presets 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 diff_presets. 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.
diff_presets is provided by the UI Preset MCP Server MCP server (ncsound919/og-glass). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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