agent_message

Send a chat message to a persistent agent created via

SERVEREasyBits SOURCE@easybits.cloud/mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/cloud-easybits-easybits/agent-message.md

WHAT IT DOES

What agent_message does on EasyBits

AI agents invoke agent_message to trigger actions in EasyBits. 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.

RISK

Why agent_message is rated High

Sending messages to an autonomous agent can trigger arbitrary actions within a persistent Linux microVM.

From the tool's definition Send a chat message to a persistent agent

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs agent_message safely

PolicyLayer is an MCP gateway: it sits between your AI agents and EasyBits, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For agent_message, this is the rule to start with:

agent_message Rate-limited

agent_message 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": {
    "agent_message": {
      "limits": [
        {
          "counter": "agent_message_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect EasyBits, apply this rule, and every agent_message call is checked against it from then on.

FAQ

Questions about agent_message

What does the agent_message tool do? +

Send a chat message to a persistent agent created via. It is categorised as a Execute tool in the EasyBits MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on agent_message? +

Register the EasyBits MCP server in PolicyLayer and add a rule for agent_message: 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 EasyBits. Nothing to install.

What risk level is agent_message? +

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

Can I rate-limit agent_message? +

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

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

agent_message is provided by the EasyBits MCP server (@easybits.cloud/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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