AI agents call snow_auth_diagnostics to retrieve information from Serac without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool reads and tests authentication state, token validity, and permission configurations. It does not modify, execute, or delete anything — it diagnoses and reports. However, it exposes sensitive security configuration details (OAuth tokens, API access, table permissions), which raises the severity to medium since misuse could leak credential or permission information useful for privilege escalation.
From the tool's definition Performs comprehensive authentication and permission diagnostics. Tests OAuth tokens, API access, table permissions, and provides specific remediation steps.
Attacks that exploit this kind of access
Performs comprehensive authentication and permission diagnostics. Tests OAuth tokens, API access, table permissions, and provides specific remediation steps. It is categorised as a Read tool in the Serac MCP Server, which means it retrieves data without modifying state.
Register the Serac MCP server in PolicyLayer and add a rule for snow_auth_diagnostics: 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 Serac. Nothing to install.
snow_auth_diagnostics 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 snow_auth_diagnostics 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 snow_auth_diagnostics. 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.
snow_auth_diagnostics is provided by the Serac MCP server (serac-labs/serac). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
snow_auth_diagnostics is one line of Serac'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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