list_daml_contracts

Query active DAML contracts on the shared Canton domain.

SERVERTenzro Ledger MCP SOURCEhttps://canton-mcp.tenzro.network/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/network-tenzro-tenzro/list-daml-contracts.md

WHAT IT DOES

What list_daml_contracts does on Tenzro Ledger MCP

AI agents call list_daml_contracts to retrieve information from Tenzro Ledger MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_daml_contracts is rated Low

This tool retrieves or lists data (active DAML contracts) without modifying, deleting, or executing any operations. The verb 'query' and 'list' are characteristic of Read operations. Even though the server handles sensitive domains like payments and wallet functionality, this specific tool only queries contract state without making changes. The blast radius is limited to information disclosure about contract status.

From the tool's definition Tool name 'list_daml_contracts' and description 'Query active DAML contracts on the shared Canton domain' indicate a read-only query operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_daml_contracts safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tenzro Ledger MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_daml_contracts, this is the rule to start with:

list_daml_contracts Allowed

list_daml_contracts is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_daml_contracts": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Tenzro Ledger MCP, apply this rule, and every list_daml_contracts call is checked against it from then on.

FAQ

Questions about list_daml_contracts

What does the list_daml_contracts tool do? +

Query active DAML contracts on the shared Canton domain. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_daml_contracts? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for list_daml_contracts: 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 Tenzro Ledger MCP. Nothing to install.

What risk level is list_daml_contracts? +

list_daml_contracts is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_daml_contracts? +

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

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

list_daml_contracts is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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