trust_workspace · Todos MCP: Risk & Policy

WHAT IT DOES

What trust_workspace does on Todos

AI agents use trust_workspace 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 trust_workspace needs a policy

This tool creates or modifies trusted workspace paths, which is a reversible write operation. It does not execute code, delete data, or move money. However, the severity is medium because manipulating workspace trust settings could indirectly enable unauthorized access or bypass security restrictions if an agent adds malicious paths to the trusted list.

From the tool's definition Tool description states 'Add (or update) a workspace path as trusted', which is a create/modify operation on workspace trust configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

trust_workspace Rate-limited

trust_workspace 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": {
    "trust_workspace": {
      "limits": [
        {
          "counter": "trust_workspace_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 trust_workspace

What does the trust_workspace tool do? +

Add (or update) a workspace path as trusted. 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 trust_workspace? +

Register the Todos MCP server in PolicyLayer and add a rule for trust_workspace: 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 trust_workspace? +

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

Can I rate-limit trust_workspace? +

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

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

trust_workspace 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.