cancel_ship_listing
on https://game.spacemolt.com/mcp
Severity
3 findings on this tool
- 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 - 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 - 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.