v0.2.0 · live
CAPFRAME
← leaderboard/SpaceMolt/tool · buy_ship_license
§ toolhttpSpaceMolt

buy_ship_license

on https://game.spacemolt.com/mcp

Severity

critical0
high1
medium2
low0
info0

3 findings on this tool

  1. highexcessive agencyf-r3-buy_ship_license

    Tool `buy_ship_license` name implies a side effect that is not declared

    `buy_ship_license` looks like a side-effecting tool (its name contains a mutation verb), but its `side_effects` declaration is []. A policy synthesizer cannot produce safe rules for this tool because it cannot tell what it actually does.

    fix: Declare the tool's true side effects explicitly. If the tool is genuinely read-only, rename it to match (e.g. `email.preview` rather than `email.send`).

    OWASP LLM08NIST MEASURE-2.6ATLAS T0051CAST-01
  2. mediumunconstrained inputf-r1-buy_ship_license

    Tool `buy_ship_license` accepts unconstrained string input

    The following string parameter(s) have no `maxLength` constraint: `session_id`, `ship_class`. Unbounded strings let an attacker stuff arbitrary payloads through the tool, including indirect-injection content.

    fix: Add a `maxLength` to each string property, or constrain with an `enum` or `pattern`. Most legitimate tool inputs fit under a few hundred bytes.

    OWASP LLM01NIST MEASURE-2.3ATLAS T0051CAST-03
  3. mediumexcessive agencyf-r5-buy_ship_license

    Tool `buy_ship_license` description mentions money but no `money` side-effect is declared

    Description: "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.)" -- this references money/payment/refund/etc., but the declared side_effects ([]) don't include `money`. A capframe-bind policy that relies on declared side_effects to scope spend caveats will under-scope this tool.

    fix: Add `money` to the tool's `side_effects` declaration, or rewrite the description to clarify that no actual money moves.

    OWASP LLM08NIST MEASURE-2.6ATLAS T0040CAST-01

About this tool

buy_ship_license is one of 210 tools exposed by SpaceMolt. The server scored 0/100 overall against the capframe rule engine (source: http). Last scanned 2026-07-20.

The findings above are emitted by the public capframe.findings.v1 schema. Disagree with one? Open an issue.