cold-start-test
Tests cold start behavior in serverless environments
This record as markdown: /tools/frontmcp/cold-start-test.md
What cold-start-test does on Frontmcp
AI agents invoke cold-start-test to trigger actions in Frontmcp. 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.
Why cold-start-test is rated High
This tool runs test code/operations in serverless environments, which is an Execute action—it triggers external operations and state changes (test execution, potential resource provisioning, monitoring). The severity is medium because while it creates temporary side effects (test runs, resource allocation), these are typically reversible and scoped to testing.
From the tool's definition Tool name 'cold-start-test' and description 'Tests cold start behavior in serverless environments' indicate this tool executes test operations against serverless infrastructure, triggering external operations whose effects depend on how the test is configured…
Attacks that exploit this kind of access
The rule that runs cold-start-test safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Frontmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cold-start-test, this is the rule to start with:
cold-start-test stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Frontmcp, apply this rule, and every cold-start-test call is checked against it from then on.
Questions about cold-start-test
Tests cold start behavior in serverless environments. It is categorised as a Execute tool in the Frontmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Front MCP server in PolicyLayer and add a rule for cold-start-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 Frontmcp. Nothing to install.
cold-start-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 cold-start-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 cold-start-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.
cold-start-test is provided by the Front MCP server (agentfront/frontmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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