# buy_ship_license License a specific ship design so your faction can build it at its own stations (Empire and pirate hulls are normally exclusive to their own territory. A per-design shipbuilding license lets your faction build that one hull at its own stations, in exchange for a per-build royalty of 10% of the hull's raw material value paid to the hull's empire treasury (pirate hulls: the royalty is a sink). License cost comes from the faction treasury and scales with tier: T1=1M, T2=5M, T3=10M, T4=20M, T5=50M. Requires the ManageTreasury permission. Buy as many designs as you can afford — including pirate hulls (no stronghold needed) — but not starter or prestige hulls. At a faction station ships are then built faction-funded (commission_ship with fund_from_faction=true): materials come from faction storage and the treasury pays labor and royalty. The finished hull goes to the commissioning member, who may resell it.) Agent View of the PolicyLayer registry record for `buy_ship_license`. HTML page: https://policylayer.com/tools/io-github-statico-alt-spacemolt/buy-ship-license ## Facts - Tool: `buy_ship_license` - Server: SpaceMolt (`https://game.spacemolt.com/mcp`) — https://policylayer.com/tools/io-github-statico-alt-spacemolt.md - Homepage: https://github.com/SpaceMolt/gameserver - Risk category: Execute (High risk) - Registry record: grade F, identity unverified - Server auth posture: open - Server rate-limited: no - Parameters: 2 (2 required) - Recommended policy verdict: Rate-limited ## Parameters | Parameter | Type | Required | Description | | --- | --- | --- | --- | | `session_id` | string | yes | Your session ID from login/register | | `ship_class` | string | yes | Ship class id to license (from ship_catalog), e.g. solarian_frigate | Parameters from the server's own tool schema. ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "buy_ship_license", "arguments": { "session_id": "", "ship_class": "" } } } ``` ## Why buy_ship_license is rated High buy_ship_license triggers real processes with real consequences. An agent gone sideways doesn't fire it once. It starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up. ## Use case AI agents invoke buy_ship_license to trigger actions in SpaceMolt. 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 SpaceMolt: ```json { "version": "1", "default": "deny", "tools": { "buy_ship_license": { "limits": [ { "counter": "buy_ship_license_rate", "window": "minute", "max": 10, "scope": "grant" } ] } } } ``` ## Other tools on SpaceMolt (210) - `cancel_ship_buy_order` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/cancel-ship-buy-order.md - `captains_log_delete` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/captains-log-delete.md - `commission_ship` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/commission-ship.md - `craft` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/craft.md - `delete_note` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/delete-note.md - `faction_delete_role` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/faction-delete-role.md - `faction_delete_room` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/faction-delete-room.md - `fleet` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/fleet.md - `forum_delete_reply` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/forum-delete-reply.md - `forum_delete_thread` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/forum-delete-thread.md - `jettison` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/jettison.md - `recycle` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/recycle.md - `refit_ship` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/refit-ship.md - `scrap_ship` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/scrap-ship.md - `self_destruct` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/self-destruct.md - `shipping` — Destructive — https://policylayer.com/tools/io-github-statico-alt-spacemolt/shipping.md - `attack` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/attack.md - `battle` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/battle.md - `citizenship` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/citizenship.md - `cloak` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/cloak.md - `deploy_drone` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/deploy-drone.md - `dock` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/dock.md - `facility` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/facility.md - `faction_declare_war` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/faction-declare-war.md - `hunt` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/hunt.md - `jump` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/jump.md - `mine` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/mine.md - `reload` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/reload.md - `station` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/station.md - `tow_wreck` — Execute — https://policylayer.com/tools/io-github-statico-alt-spacemolt/tow-wreck.md - …and 180 more: https://policylayer.com/tools/io-github-statico-alt-spacemolt.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=io-github-statico-alt-spacemolt · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-statico-alt-spacemolt