AI agents call get_assignable_users to retrieve information from Jamot 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 retrieves user data from a database without creating, modifying, deleting, or executing any operations. It is purely informational, returning a list of users available for task assignment. The blast radius of misuse is limited to potential information disclosure about which users exist in the system, which is low severity in most contexts.
From the tool's definition Tool name is 'get_assignable_users' and description states 'Fetch all assignable users from the internal A2H MongoDB database.' The verb 'fetch' indicates data retrieval with no side effects.
Attacks that exploit this kind of access
Fetch all assignable users from the internal A2H MongoDB database. It is categorised as a Read tool in the Jamot MCP MCP Server, which means it retrieves data without modifying state.
Register the Jamot MCP server in PolicyLayer and add a rule for get_assignable_users: 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 Jamot MCP. Nothing to install.
get_assignable_users 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_assignable_users 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_assignable_users. 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_assignable_users is provided by the Jamot MCP server (jamot-pro/jamot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_assignable_users is one line of Jamot'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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