Compute the secp256k1 signing hash for an EIP-7702 authorization
AI agents call eip7702_signing_hash 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.
This tool computes/calculates a cryptographic hash for an EIP-7702 authorization — it is a read/computational operation with no side effects. However, the output (a signing hash) is a prerequisite for signing transactions that delegate EOA code execution, so misuse could facilitate unauthorized contract delegation. No funds are moved or data written directly by this tool.
From the tool's definition Compute the secp256k1 signing hash for an EIP-7702 authorization
Attacks that exploit this kind of access
Compute the secp256k1 signing hash for an EIP-7702 authorization. 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 eip7702_signing_hash: 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.
eip7702_signing_hash 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 eip7702_signing_hash 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 eip7702_signing_hash. 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.
eip7702_signing_hash 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.
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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