AI agents use build_sell_arena_tx to commit financial operations through Logiqical — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool constructs transactions that sell a cryptocurrency token (ARENA) for another (AVAX), which constitutes a financial operation involving asset exchange. While the transactions are unsigned (reducing immediate risk), the tool is specifically designed to facilitate a financial trade. Misuse could lead to unwanted asset sales. Severity is high due to potential financial loss if misused by an AI agent.
From the tool's definition 'sell ARENA for AVAX (approve + swap)' — directly builds transactions to exchange/sell a token for another asset (AVAX), committing a financial trade operation
Attacks that exploit this kind of access
Build unsigned transactions to sell ARENA for AVAX (approve + swap). Returns 2 txs. It is categorised as a Financial tool in the Logiqical MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Logiqical MCP server in PolicyLayer and add a rule for build_sell_arena_tx: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Logiqical. Nothing to install.
build_sell_arena_tx is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the build_sell_arena_tx rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for build_sell_arena_tx. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
build_sell_arena_tx is provided by the Logiqical MCP server (logiqical-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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