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

cancel_ship_listing

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

Severity

critical0
high1
medium2
low0
info0

3 findings on this tool

  1. highexcessive agencyf-r3-cancel_ship_listing

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

    `cancel_ship_listing` 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 T0051
  2. mediumunconstrained inputf-r1-cancel_ship_listing

    Tool `cancel_ship_listing` accepts unconstrained string input

    The following string parameter(s) have no `maxLength` constraint: `listing_id`, `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
  3. mediumexcessive agencyf-r5-cancel_ship_listing

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

    Description: "Remove your ship listing from the exchange (Cancel a ship listing you created. The listing fee is not refunded.)" -- 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

cancel_ship_listing is one of 179 tools exposed by SpaceMolt. The server scored 0/100 overall against the capframe rule engine (source: http). Last scanned 2026-06-05.

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