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

unload_passenger

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

Severity

critical0
high0
medium2
low0
info0

2 findings on this tool

  1. mediumunconstrained inputf-r1-unload_passenger

    Tool `unload_passenger` accepts unconstrained string input

    The following string parameter(s) have no `maxLength` constraint: `name`, `session_id`. 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 T0051
  2. mediumexcessive agencyf-r5-unload_passenger

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

    Description: "Put a single passenger off the ship at the current station (You must be docked. If this station is the passenger's destination they are delivered and pay their fare; otherwise they are stranded here, pay nothing, and you take a small reputation hit with their empire. Use 'list_passengers' to see who is aboard.)" -- 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 T0040

About this tool

unload_passenger is one of 183 tools exposed by SpaceMolt. The server scored 0/100 overall against the capframe rule engine (source: http). Last scanned 2026-06-06.

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