Get a specific observation with all details including input/output, usage, costs, and timing.
AI agents call getObservation to retrieve information from Langfuse Mcp Extended without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves observation data from Langfuse (a tracing/monitoring platform) without creating, modifying, or deleting any data. It is a read-only query operation with minimal security risk—the primary concern would be unauthorized access to sensitive trace data, but the tool itself performs no destructive or impactful actions.
From the tool's definition Tool name 'getObservation' and description 'Get a specific observation with all details' indicate a retrieval operation.
Attacks that exploit this kind of access
Get a specific observation with all details including input/output, usage, costs, and timing. It is categorised as a Read tool in the Langfuse Mcp Extended MCP Server, which means it retrieves data without modifying state.
Register the Langfuse Mcp Extended MCP server in PolicyLayer and add a rule for getObservation: 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 Langfuse Mcp Extended. Nothing to install.
getObservation 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 getObservation 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 getObservation. 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.
getObservation is provided by the Langfuse Mcp Extended MCP server (langfuse-mcp-extended). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
getObservation is one line of Langfuse Mcp Extended'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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