build_task · PsyFlow- MCP: Risk & Policy

WHAT IT DOES

What build_task does on PsyFlow-MCP

AI agents invoke build_task to trigger actions in PsyFlow-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.

WHY IT NEEDS A POLICY

Why build_task needs a policy

Given the server context (PsyFlow task templates with tools like download_task, list_tasks, localize, list_voices), 'build_task' most likely compiles or generates/transforms a task template, which implies executing a build/transform process. Without a description, confidence is low, but 'build' typically implies executing a pipeline rather than a simple read or write.

From the tool's definition Tool name is 'build_task'; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

build_task Rate-limited

build_task 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "build_task": {
      "limits": [
        {
          "counter": "build_task_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches PsyFlow-MCP, so you can run agents against it safely.

FAQ

Questions about build_task

What does the build_task tool do? +

build_task. It is categorised as a Execute tool in the PsyFlow-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on build_task? +

Register the PsyFlow- MCP server in PolicyLayer and add a rule for build_task: 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 PsyFlow-MCP. Nothing to install.

What risk level is build_task? +

build_task is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit build_task? +

Yes. Add a rate_limit block to the build_task 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.

How do I block build_task completely? +

Set action: deny in the PolicyLayer policy for build_task. 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.

What MCP server provides build_task? +

build_task is provided by the PsyFlow- MCP server (taskbeacon/taskbeacon-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.