[AIOBS] Compare two AI agent sessions and show their differences including metadata, LLM calls, tokens, latency, providers, models, functions, evaluations, errors, system prompts, request parameters, and response content.
AI agents call aiobs_diff_sessions to retrieve information from Shepherd MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a comparative analysis and querying operation on existing session data from observability providers (Shepherd/Langfuse). It retrieves metadata, LLM calls, tokens, latency, and other metrics for diagnostic purposes. No data is created, modified, deleted, or executed; it purely reads and presents information.
From the tool's definition Tool name 'aiobs_diff_sessions' and description state it 'Compare two AI agent sessions and show their differences' — retrieves and analyzes observability data without modifying, deleting, or executing operations.
Attacks that exploit this kind of access
[AIOBS] Compare two AI agent sessions and show their differences including metadata, LLM calls, tokens, latency, providers, models, functions, evaluations, errors, system prompts, request parameters, and response content. It is categorised as a Read tool in the Shepherd MCP MCP Server, which means it retrieves data without modifying state.
Register the Shepherd MCP server in PolicyLayer and add a rule for aiobs_diff_sessions: 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 Shepherd MCP. Nothing to install.
aiobs_diff_sessions 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 aiobs_diff_sessions 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 aiobs_diff_sessions. 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.
aiobs_diff_sessions is provided by the Shepherd MCP server (neuralis-in/shepherd-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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