coord_update_task · Session Coord MCP: Risk & Policy

WHAT IT DOES

What coord_update_task does on Session Coord

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

WHY IT NEEDS A POLICY

Why coord_update_task needs a policy

The tool modifies task data (metadata, owner, paths, dependencies, status) but does not delete or destroy data irreversibly, nor does it move money or execute arbitrary code. It is a Write operation.

From the tool's definition Tool description states 'Update task metadata, owner, paths, dependencies, or status' — these are reversible modifications to task records in a coordination system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

coord_update_task Rate-limited

coord_update_task 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": {
    "coord_update_task": {
      "limits": [
        {
          "counter": "coord_update_task_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 Session Coord, so you can run agents against it safely.

FAQ

Questions about coord_update_task

What does the coord_update_task tool do? +

Update task metadata, owner, paths, dependencies, or status. It is categorised as a Write tool in the Session Coord MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on coord_update_task? +

Register the Session Coord MCP server in PolicyLayer and add a rule for coord_update_task: 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 Session Coord. Nothing to install.

What risk level is coord_update_task? +

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

Can I rate-limit coord_update_task? +

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

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

coord_update_task is provided by the Session Coord MCP server (lingfeng-vels/session-coord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.