task_defer · Ssyubix A2a Agentlink MCP: Risk & Policy

WHAT IT DOES

What task_defer does on Ssyubix A2a Agentlink

AI agents use task_defer to create or update resources in Ssyubix A2a Agentlink — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ssyubix A2a Agentlink environment.

WHY IT NEEDS A POLICY

Why task_defer needs a policy

The tool defers (postpones) a delegation offer targeted at this agent, which modifies the state of a task/delegation offer by changing its timing or status. This is a reversible state change (deferral, not deletion), so it fits the Write category. It operates in a cross-device AI agent communication context, meaning misuse could disrupt inter-agent workflows, warranting medium severity.

From the tool's definition task_defer — 'Tunda delegation offer yang ditujukan ke agent ini' (defer/postpone a delegation offer directed at this agent)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

task_defer Rate-limited

task_defer stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "task_defer": {
      "limits": [
        {
          "counter": "task_defer_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ssyubix A2a Agentlink, so you can run agents against it safely.

FAQ

Questions about task_defer

What does the task_defer tool do? +

Tunda delegation offer yang ditujukan ke agent ini. It is categorised as a Write tool in the Ssyubix A2a Agentlink MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on task_defer? +

Register the Ssyubix A2a Agentlink MCP server in PolicyLayer and add a rule for task_defer: 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 Ssyubix A2a Agentlink. Nothing to install.

What risk level is task_defer? +

task_defer is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit task_defer? +

Yes. Add a rate_limit block to the task_defer 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 task_defer completely? +

Set action: deny in the PolicyLayer policy for task_defer. 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 task_defer? +

task_defer is provided by the Ssyubix A2a Agentlink MCP server (syuaibsyuaib/ssyubix). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.