Dump the current UI hierarchy as structured JSON. Each element includes bounds, computed centerpoint (useful for taps), text, content description, resource ID, class, and interactivity flags. Filter to clickable elements with clickable_only=true.
AI agents call adb_ui_dump to retrieve information from Adb without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and returns the current UI state of the Android device — it captures structural data (element bounds, text, resource IDs, interactivity flags) without modifying anything. It is a read/inspect operation.
From the tool's definition Dump the current UI hierarchy as structured JSON... Filter to clickable elements with clickable_only=true
Attacks that exploit this kind of access
Dump the current UI hierarchy as structured JSON. Each element includes bounds, computed centerpoint (useful for taps), text, content description, resource ID, class, and interactivity flags. Filter to clickable elements with clickable_only=true. It is categorised as a Read tool in the Adb MCP Server, which means it retrieves data without modifying state.
Register the Adb MCP server in PolicyLayer and add a rule for adb_ui_dump: 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 Adb. Nothing to install.
adb_ui_dump 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 adb_ui_dump 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 adb_ui_dump. 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.
adb_ui_dump is provided by the Adb MCP server (sfaizi24/adb-mcp-server). 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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