discovers companies on disk with enough metadata to drive a load-company call without trial and error. Returns one row per digit-named folder under the Tally data directory, with: folderId, folderPath, displayName (extracted from Company.900 / Company.1800), hasData (whether any company metadata ...
AI agents call list-available-companies 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 is a read-only enumeration tool that gathers configuration and metadata information about available Tally companies. It has no side effects and only retrieves data to help users or subsequent tools locate and load company instances. The blast radius of misuse is minimal—an attacker learns what companies exist and their paths, but cannot modify data, execute operations, or commit financial transactions.
From the tool's definition Tool performs discovery and retrieval of company metadata from Tally data directories. Description uses passive verbs: 'discovers', 'Returns', 'extracted', 'Handles'. No modification, deletion, execution, or financial transaction occurs.
Attacks that exploit this kind of access
discovers companies on disk with enough metadata to drive a load-company call without trial and error. Returns one row per digit-named folder under the Tally data directory, with: folderId, folderPath, displayName (extracted from Company.900 / Company.1800), hasData (whether any company metadata file was found), dataFilePath, requiresCredentials (null if unknown, true/false if a credential-hint config exists), knownUsername, notes. Handles both layouts: stock Tally Prime (<data>/<id>/Company.900) and Tally Prime Edit Log (<data>/<id>/<id>/Company.1800 — one level deeper). Recursively walks each folder up to depth 3 so an LLM doesn. 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 list-available-companies: 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.
list-available-companies 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 list-available-companies 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 list-available-companies. 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.
list-available-companies is provided by the Tally Prime MCP Server MCP server (jina-code-systems/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.
Teams ship this data inside their own products. See what a licence covers →