update_unadjusted_balance · TreeBeam MCP Server MCP

WHAT IT DOES

What update_unadjusted_balance does on TreeBeam MCP Server

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

WHY IT NEEDS A POLICY

Why update_unadjusted_balance needs a policy

The tool modifies financial accounting data (unadjusted balances are core GL records used in period-end close processes). While reversible (not deletion), updates to unadjusted balances in an accounting system carry high risk because they affect financial reporting, audit trails, and compliance.

From the tool's definition Tool name is 'update_unadjusted_balance' and description states it 'Update[s] an existing unadjusted balance within a project.' This modifies financial data (unadjusted balance records) reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_unadjusted_balance Rate-limited

update_unadjusted_balance 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": {
    "update_unadjusted_balance": {
      "limits": [
        {
          "counter": "update_unadjusted_balance_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 TreeBeam MCP Server, so you can run agents against it safely.

FAQ

Questions about update_unadjusted_balance

What does the update_unadjusted_balance tool do? +

Update an existing unadjusted balance within a project. It is categorised as a Write tool in the TreeBeam MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_unadjusted_balance? +

Register the TreeBeam MCP Server MCP server in PolicyLayer and add a rule for update_unadjusted_balance: 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 TreeBeam MCP Server. Nothing to install.

What risk level is update_unadjusted_balance? +

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

Can I rate-limit update_unadjusted_balance? +

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

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

update_unadjusted_balance is provided by the TreeBeam MCP Server MCP server (treebeam-code/tb-mcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.