task_reject · Ssyubix A2a Agentlink MCP: Risk & Policy

WHAT IT DOES

What task_reject does on Ssyubix A2a Agentlink

AI agents use task_reject 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_reject needs a policy

This tool performs a state-modifying action (rejecting a delegation offer) that is reversible in nature—the agent can potentially re-accept or re-engage with the task later, or the offer can be re-sent. It does not delete data irreversibly, execute arbitrary code, move money, or trigger external side effects.

From the tool's definition Tool name 'task_reject' and description 'Tolak delegation offer yang ditujukan ke agent ini' (reject delegation offer directed to this agent) indicates the tool modifies state by rejecting an offered task/delegation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

task_reject Rate-limited

task_reject 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_reject": {
      "limits": [
        {
          "counter": "task_reject_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_reject

What does the task_reject tool do? +

Tolak 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_reject? +

Register the Ssyubix A2a Agentlink MCP server in PolicyLayer and add a rule for task_reject: 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_reject? +

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

Can I rate-limit task_reject? +

Yes. Add a rate_limit block to the task_reject 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_reject completely? +

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

task_reject 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.