fetches ledger closing balance as on date, negative is debit and positive is credit, display Dr for Debit or Cr for Credit after the amount for better readability, instead of negative amount flip Debit or Credit to make it positive
AI agents call ledger-balance to retrieve information from Tally Prime MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves ledger balance information from Tally Prime ERP. The operation is non-destructive and read-only—it presents existing data in a more readable format without creating, modifying, or deleting any records. While it accesses financial data (which could be sensitive), it does not move money, execute code, or change state.
From the tool's definition Tool description states it 'fetches ledger closing balance as on date' with formatting for display purposes (Dr/Cr notation). The word 'fetches' and 'display' indicate read-only retrieval of financial data without modification or execution.
Attacks that exploit this kind of access
fetches ledger closing balance as on date, negative is debit and positive is credit, display Dr for Debit or Cr for Credit after the amount for better readability, instead of negative amount flip Debit or Credit to make it positive. It is categorised as a Read tool in the Tally Prime MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Tally Prime MCP Server MCP server in PolicyLayer and add a rule for ledger-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 Tally Prime MCP Server. Nothing to install.
ledger-balance is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ledger-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.
Set action: deny in the PolicyLayer policy for ledger-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.
ledger-balance is provided by the Tally Prime MCP Server MCP server (qalalabs/tally-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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