Find and execute cross-platform arbitrage opportunities across prediction markets
70
59%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Risky
Do not use without reviewing
Optimize this skill with Tessl
npx tessl skill review --optimize ./src/skills/bundled/opportunity/SKILL.mdSecurity
3 findings — 1 high severity, 2 medium severity. You should review these findings carefully before considering using this skill.
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Insecure credential handling detected (high risk: 1.00). The prompt shows credentials passed inline in code (e.g., polymarket: { apiKey, apiSecret, passphrase, privateKey }), which instructs embedding secret values directly in generated configuration/code and thus requires the LLM to handle/output secrets verbatim.
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Third-party content exposure detected (high risk: 0.90). The skill explicitly scans and ingests market data from public prediction platforms (Polymarket, Kalshi, Betfair, etc.) as shown in SKILL.md and in index.ts (createOpportunityFinder, createFeedManager, finder.scan), and it displays and uses untrusted market question text and match verification (formatOpportunity, matchVerification) to drive matching and execution decisions—so third-party content can materially influence actions.
The skill is specifically designed for direct financial operations, giving the agent the ability to move money or execute financial transactions — such as payment processing, cryptocurrency operations, banking integrations, or market order execution.
Direct money access detected (high risk: 1.00). The skill is explicitly designed to find and execute arbitrage across real prediction-market platforms and includes concrete execution functionality and credential fields. It requires API credentials (apiKey, apiSecret, privateKey) for platforms like Polymarket and Kalshi and exposes an execute(opportunityId, { size, maxSlippage, ... }) method and CLI commands (/opportunities execute <id> --size 100) that perform trades and report fills, fees, P&L. Those are direct market-order / transaction operations on financial platforms (moving capital), not generic tooling. Therefore it grants direct financial execution authority.
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