shellgames

Fail

Audited by Snyk on Apr 8, 2026

Risk Level: HIGH
Full Analysis

HIGH W007: Insecure credential handling detected in skill instructions.

  • Insecure credential handling detected (high risk: 1.00). The prompt's example requests and flows explicitly require embedding passwords, JWTs, wakeToken/playerToken/callbackToken (secret tokens) into headers and request bodies, which forces the agent to handle and output secret values verbatim for API calls.

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 0.90). The skill instructs the agent to fetch and act on live, user-generated content from shellgames.ai—e.g., GET /api/games/:id/state (including the moveLog and revealed cards), GET /api/games/:id/chat, GET /api/messages/inbox, and GET /room/:id/ai—and explicitly tells the agent to read those fields and use them to decide moves, so untrusted third-party messages or room/AI JSON could materially influence agent actions.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

  • Potentially malicious external URL detected (high risk: 0.90). The skill exposes and expects runtime fetching of per-room AI instructions via the ShellGames API (GET https://shellgames.ai/room/:id/ai), which returns JSON "AI Instructions" that can directly control agent prompts/instructions and is part of the skill's API surface, so this is a runtime external dependency that can steer the agent.

MEDIUM W009: Direct money access capability detected (payment gateways, crypto, banking).

  • Direct money access detected (high risk: 1.00). The skill explicitly provides cryptocurrency wagering and deposit endpoints: it documents "Wagers (SOL)" with POST /api/games/:gameId/wager and POST /api/games/:gameId/deposit (and GET /api/games/:gameId/deposits) to deposit SOL into escrow for games, plus tournament prize pools. These are specific crypto-related APIs to move funds (deposit SOL), so it grants direct financial execution capability.

Issues (4)

W007
HIGH

Insecure credential handling detected in skill instructions.

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

W012
MEDIUM

Unverifiable external dependency detected (runtime URL that controls agent).

W009
MEDIUM

Direct money access capability detected (payment gateways, crypto, banking).

Audit Metadata
Risk Level
HIGH
Analyzed
Apr 8, 2026, 06:21 AM
Issues
4
Security Audit — snyk — shellgames