Find users that can be assigned to issues
AI agents call find_assignable_users to retrieve information from Jira MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and filters a list of users eligible for assignment—a read-only query operation. It has no side effects, does not modify data, and presents minimal security risk. The blast radius of misuse is low: an agent querying for assignable users cannot damage systems or cause financial harm.
From the tool's definition Tool name 'find_assignable_users' and description 'Find users that can be assigned to issues' indicate a query operation that retrieves user data without modifying, deleting, or executing external operations.
Attacks that exploit this kind of access
Find users that can be assigned to issues. It is categorised as a Read tool in the Jira MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Jira MCP Server MCP server in PolicyLayer and add a rule for find_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 Jira MCP Server. Nothing to install.
find_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 find_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 find_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.
find_assignable_users is provided by the Jira MCP Server MCP server (sespinosa/jira-mcp-server). 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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