ABI-decode the return data from a smart contract call.
AI agents call decode_result to retrieve information from Tenzro Ledger MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Decoding ABI-encoded return data is a purely informational operation with no side effects. It retrieves and interprets data that has already been produced by a contract call, similar to parsing or formatting output. There is no capability to execute code, modify state, delete data, or move funds—it only transforms data representation.
From the tool's definition Tool name 'decode_result' and description 'ABI-decode the return data from a smart contract call' indicates a read-only operation that parses and interprets already-obtained data without modifying state or triggering external actions.
Attacks that exploit this kind of access
ABI-decode the return data from a smart contract call. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for decode_result: 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.
decode_result 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 decode_result 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 decode_result. 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.
decode_result 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.
decode_result is one line of Tenzro Ledger's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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