set-period

sets the active reporting period in Tally Prime by specifying a from date and to date. This changes the global period context used by Tally for subsequent report queries

ServerTally Prime MCP Server
CategoryWrite

How to control set-period ↓

WHAT IT DOES

What set-period does on Tally Prime MCP Server

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

THE RISK

Medium Risk

Why set-period needs a policy

This tool modifies Tally Prime's global configuration (the active reporting period) which persists and influences all downstream report queries. While reversible (periods can be changed again), it alters system state and could cause an AI agent to misinterpret financial data if the period is set incorrectly, leading to high-impact financial misreporting.

From the tool's definition Tool description states it 'sets the active reporting period' and 'changes the global period context' in Tally Prime. The word 'sets' and 'changes' indicate modification of system state that affects subsequent queries.

Documented attack patterns abuse exactly the kind of access set-period gives an agent:

POLICY

How to control set-period

PolicyLayer is an MCP gateway — it sits between your AI agents and Tally Prime MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for set-period:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set-period": {
      "limits": [
        {
          "counter": "set-period_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

set-period 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.

Create a free account and register Tally Prime MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

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Scoped token → Per-person credentials that grant a defined subset of servers and tools.
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FAQ

Questions about set-period

What does the set-period tool do? +

sets the active reporting period in Tally Prime by specifying a from date and to date. This changes the global period context used by Tally for subsequent report queries. It is categorised as a Write tool in the Tally Prime 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 set-period? +

Register the Tally Prime MCP Server MCP server in PolicyLayer and add a rule for set-period: 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 Tally Prime MCP Server. Nothing to install.

What risk level is set-period? +

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

Can I rate-limit set-period? +

Yes. Add a rate_limit block to the set-period 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 set-period completely? +

Set action: deny in the PolicyLayer policy for set-period. 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 set-period? +

set-period is provided by the Tally Prime MCP Server MCP server (dhananjay1405/tally-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Tally Prime MCP Server tool call.

Start from Tally Prime MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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19 Tally Prime MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.