save_command_alias · Todos MCP: Risk & Policy

WHAT IT DOES

What save_command_alias does on Todos

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

WHY IT NEEDS A POLICY

Why save_command_alias needs a policy

This tool creates or modifies command aliases in project-local configuration, making it a reversible Write operation. While command aliases could potentially be misused to obfuscate malicious commands, the core action is configuration modification, not execution or deletion.

From the tool's definition Tool name explicitly states 'save' and description confirms 'Save or update', which are Write operations that create or modify data. The alias configuration is reversible and can be updated or removed later.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_command_alias Rate-limited

save_command_alias 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": {
    "save_command_alias": {
      "limits": [
        {
          "counter": "save_command_alias_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 Todos, so you can run agents against it safely.

FAQ

Questions about save_command_alias

What does the save_command_alias tool do? +

Save or update a project-local command alias. It is categorised as a Write tool in the Todos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on save_command_alias? +

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

What risk level is save_command_alias? +

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

Can I rate-limit save_command_alias? +

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

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

save_command_alias is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.