# install_role A execute tool on the Ludus FastMCP MCP server. Agent View of the PolicyLayer registry record for `install_role`. HTML page: https://policylayer.com/tools/tjnull-ludus-fastmcp/install-role ## Facts - Tool: `install_role` - Server: Ludus FastMCP (`tjnull/ludus-fastmcp`) — https://policylayer.com/tools/tjnull-ludus-fastmcp.md - Homepage: https://github.com/tjnull/Ludus-FastMCP - Risk category: Execute (High risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "install_role", "arguments": {} } } ``` ## Why install_role is rated High Based on server context describing 'Ansible role management' as a capability, 'install_role' likely installs an Ansible role into the cyber range environment, which constitutes executing an external operation that modifies system state. Installing roles can have significant side effects on the environment configuration. From the tool's own definition: "Tool name 'install_role' on a server described as providing Ansible role management capabilities. Description is empty/uninformative." ## Use case AI agents invoke install_role to trigger actions in Ludus FastMCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Ludus FastMCP: ```json { "version": "1", "default": "deny", "tools": { "install_role": { "limits": [ { "counter": "install_role_rate", "window": "minute", "max": 10, "scope": "grant" } ] } } } ``` ## Other tools on Ludus FastMCP (230) - `abort_and_remove_range` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/abort-and-remove-range.md - `abort_range_deployment` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/abort-range-deployment.md - `batch_remove_snapshots` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/batch-remove-snapshots.md - `cleanup_old_ranges` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/cleanup-old-ranges.md - `clear_range_access` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/clear-range-access.md - `delete_blueprint` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-blueprint.md - `delete_group` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-group.md - `delete_range` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-range.md - `delete_range_by_user` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-range-by-user.md - `delete_range_object` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-range-object.md - `delete_ranges_by_status` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-ranges-by-status.md - `delete_source` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-source.md - `delete_template` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/delete-template.md - `destroy_vm` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/destroy-vm.md - `remove_ranges_from_group` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/remove-ranges-from-group.md - `remove_snapshot` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/remove-snapshot.md - `remove_user` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/remove-user.md - `remove_users_from_group` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/remove-users-from-group.md - `revoke_range_access` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/revoke-range-access.md - `revoke_range_from_user` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/revoke-range-from-user.md - `rollback_snapshot` — Destructive — https://policylayer.com/tools/tjnull-ludus-fastmcp/rollback-snapshot.md - `abort_template_build` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/abort-template-build.md - `apply_adversary_profile` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/apply-adversary-profile.md - `apply_blueprint_to_range` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/apply-blueprint-to-range.md - `apply_defender_profile` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/apply-defender-profile.md - `batch_power_on_hosts` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/batch-power-on-hosts.md - `batch_snapshot_hosts` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/batch-snapshot-hosts.md - `build_container_based_template` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/build-container-based-template.md - `build_range_from_description` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/build-range-from-description.md - `build_range_from_scratch` — Execute — https://policylayer.com/tools/tjnull-ludus-fastmcp/build-range-from-scratch.md - …and 200 more: https://policylayer.com/tools/tjnull-ludus-fastmcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=tjnull-ludus-fastmcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/tjnull-ludus-fastmcp