Execute predefined API test steps. Takes a test case and specific API steps to execute.
AI agents invoke execute_api_test to trigger actions in Decide Test MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool executes external API calls based on user-provided test cases and steps. While the execution is of 'predefined' steps rather than arbitrary code, it still triggers real API operations that can have side effects on external systems (create records, modify data, trigger workflows, etc.). The tool's effect depends on which API steps are selected and executed, making it an Execute risk.
From the tool's definition Tool description states 'Execute predefined API test steps' and 'Takes a test case and specific API steps to execute.' The verb 'execute' combined with the capability to run API test steps indicates this tool triggers external operations (API calls) whose…
Attacks that exploit this kind of access
Execute predefined API test steps. Takes a test case and specific API steps to execute. It is categorised as a Execute tool in the Decide Test MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Decide Test MCP server in PolicyLayer and add a rule for execute_api_test: 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 Decide Test MCP. Nothing to install.
execute_api_test is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the execute_api_test 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 execute_api_test. 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.
execute_api_test is provided by the Decide Test MCP server (k-n-t-lam/decide-test-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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