Returns a lightweight structural summary of a tree/bookmarks/library WITHOUT returning the actual nodes. Bridge-side; no LLM. Designed for the
AI agents call get_tree_summary to retrieve information from Pinako AI Bridge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about the structure of bookmarks, library, or tabs without modifying, executing operations, or deleting anything. It is a read-only query operation with minimal blast radius if misused by an AI agent.
From the tool's definition Tool name 'get_tree_summary' and description 'Returns a lightweight structural summary' indicates data retrieval. The phrase 'WITHOUT returning the actual nodes' and 'no LLM' confirms it is a query-only operation with no side effects.
Attacks that exploit this kind of access
Returns a lightweight structural summary of a tree/bookmarks/library WITHOUT returning the actual nodes. Bridge-side; no LLM. Designed for the. It is categorised as a Read tool in the Pinako AI Bridge MCP Server, which means it retrieves data without modifying state.
Register the Pinako AI Bridge MCP server in PolicyLayer and add a rule for get_tree_summary: 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 Pinako AI Bridge. Nothing to install.
get_tree_summary 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 get_tree_summary 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 get_tree_summary. 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.
get_tree_summary is provided by the Pinako AI Bridge MCP server (teleomorph/pinako-mcp). 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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