Return in-memory per-tool latency/failure metrics snapshot as JSON.
AI agents call observability_snapshot to retrieve information from Visual Annotation MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns existing metrics data (latency and failure statistics) stored in memory. It is a read-only operation that retrieves observability/telemetry information for diagnostic purposes. There are no side effects, data modifications, code execution, or financial implications. The low severity reflects minimal risk even if accessed by an untrusted agent, as it only exposes performance metrics.
From the tool's definition Tool name 'observability_snapshot' and description 'Return in-memory per-tool latency/failure metrics snapshot as JSON' indicate retrieval of diagnostic/monitoring data with no modification of state or execution of external operations.
Attacks that exploit this kind of access
Return in-memory per-tool latency/failure metrics snapshot as JSON. It is categorised as a Read tool in the Visual Annotation MCP MCP Server, which means it retrieves data without modifying state.
Register the Visual Annotation MCP server in PolicyLayer and add a rule for observability_snapshot: 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 Visual Annotation MCP. Nothing to install.
observability_snapshot 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 observability_snapshot 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 observability_snapshot. 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.
observability_snapshot is provided by the Visual Annotation MCP server (mstocker1/visual_annotation_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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