Retrieve canonical Workbench xgr-session-start@1 handoff schema.
AI agents call get_xgr_session_start_schema to retrieve information from XGR MCP Gateway without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves schema metadata from the blockchain system. It performs a read-only query operation with no capacity to modify state, execute code, delete data, or trigger financial transactions. The 'get_' prefix and 'Retrieve' verb confirm it is informational only. Severity is low because reading a schema presents minimal risk; an AI agent cannot misuse this to cause harm beyond information disclosure.
From the tool's definition Tool name contains 'get_' and description states 'Retrieve canonical...schema' — a pure data retrieval operation with no modification or execution side effects.
Attacks that exploit this kind of access
Retrieve canonical Workbench xgr-session-start@1 handoff schema. It is categorised as a Read tool in the XGR MCP Gateway MCP Server, which means it retrieves data without modifying state.
Register the XGR MCP Gateway MCP server in PolicyLayer and add a rule for get_xgr_session_start_schema: 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 XGR MCP Gateway. Nothing to install.
get_xgr_session_start_schema 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_xgr_session_start_schema 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_xgr_session_start_schema. 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_xgr_session_start_schema is provided by the XGR MCP Gateway MCP server (xgr-network/xgr-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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