sdk_form_diff
AI agents call sdk_form_diff to retrieve information from UI Bridge MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
With no description provided, classification relies on naming conventions and server context. 'Diff' operations typically compare data without altering it, placing this in the Read category. However, confidence is reduced (0.6) due to the empty description. If the tool actually modifies forms or executes changes, it could be Execute or Write—clarification of the description would improve confidence.
From the tool's definition Tool name 'sdk_form_diff' suggests comparison/analysis of form differences. Description is empty, limiting direct justification. Context from sibling tools (sdk_analyze_*, sdk_annotated_screenshot) indicates this server is primarily observational.
Attacks that exploit this kind of access
sdk_form_diff. It is categorised as a Read tool in the UI Bridge MCP MCP Server, which means it retrieves data without modifying state.
Register the UI Bridge MCP server in PolicyLayer and add a rule for sdk_form_diff: 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 Bridge MCP. Nothing to install.
sdk_form_diff 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 sdk_form_diff 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 sdk_form_diff. 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.
sdk_form_diff is provided by the UI Bridge MCP server (qontinui/ui-bridge-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
sdk_form_diff is one line of UI Bridge's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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