Get smart contract log events with filtering
AI agents call get_contract_log_events to retrieve information from Stacks AI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries historical log events from smart contracts. It performs no state modification, deletion, execution of operations, or financial transactions. Filtering is a standard read operation. The low severity reflects that event log queries have minimal blast radius—an AI agent misusing this tool could at worst spam queries or expose public blockchain data already visible on-chain.
From the tool's definition Tool name 'get_contract_log_events' and description 'Get smart contract log events with filtering' indicate data retrieval with no side effects. The verb 'Get' combined with 'filtering' confirms read-only query operations on existing contract logs.
Attacks that exploit this kind of access
Get smart contract log events with filtering. It is categorised as a Read tool in the Stacks AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for get_contract_log_events: 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 Stacks AI MCP Server. Nothing to install.
get_contract_log_events is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_contract_log_events 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 get_contract_log_events. 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.
get_contract_log_events is provided by the Stacks AI MCP Server MCP server (stack-ai-mcp/stacks-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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