AI agents call bridge_state to retrieve information from Z2 Zetrix without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves state information about an L1 Bridge's wiring, escrow holdings, and delayed message counts for monitoring purposes. It is a read-only probe operation that does not create, modify, or delete data.
From the tool's definition L1 Bridge wiring + native escrow + delayed-message count (liveness/verification probe) - retrieves bridge state, escrow status, and message counts without modifying data
Attacks that exploit this kind of access
L1 Bridge wiring + native escrow + delayed-message count (liveness/verification probe). It is categorised as a Read tool in the Z2 Zetrix MCP Server, which means it retrieves data without modifying state.
Register the Z2 Zetrix MCP server in PolicyLayer and add a rule for bridge_state: 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 Z2 Zetrix. Nothing to install.
bridge_state 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 bridge_state 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 bridge_state. 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.
bridge_state is provided by the Z2 Zetrix MCP server (z2-zetrix-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
bridge_state is one line of Z2 Zetrix'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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