deploy_contract
Deploy bytecode to the EVM, SVM, or DAML runtime.
This record as markdown: /tools/network-tenzro-tenzro/deploy-contract.md
What deploy_contract does on Tenzro Ledger MCP
AI agents invoke deploy_contract to trigger actions in Tenzro Ledger MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why deploy_contract is rated High
While deployment itself doesn't directly delete or move funds, it executes code on blockchain systems, making it Execute category. Severity is high because a malicious or erroneous deployment could result in substantial financial losses, locked funds, or unintended smart contract behavior affecting multiple users.
From the tool's definition The tool deploys bytecode to multiple blockchain runtimes (EVM, SVM, DAML). Deployment is a code execution operation that triggers external smart contract effects.
Attacks that exploit this kind of access
The rule that runs deploy_contract 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 deploy_contract, this is the rule to start with:
deploy_contract stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Tenzro Ledger MCP, apply this rule, and every deploy_contract call is checked against it from then on.
Questions about deploy_contract
Deploy bytecode to the EVM, SVM, or DAML runtime. It is categorised as a Execute tool in the Tenzro Ledger MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for deploy_contract: 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.
deploy_contract is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the deploy_contract 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 deploy_contract. 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.
deploy_contract 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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