Decode an bolt12 offer the output amount is in milisatoshis
AI agents call decode-offer to retrieve information from Phoenixd MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and parses information from an existing bolt12 offer string. It has no side effects—it does not create invoices, send payments, modify channels, or execute transactions. It is purely informational, similar to 'decode-invoice' also present on this server.
From the tool's definition Tool named 'decode-offer' with description stating it decodes a bolt12 offer and returns the output amount. The word 'decode' indicates parsing/reading data with no state modification.
Attacks that exploit this kind of access
Decode an bolt12 offer the output amount is in milisatoshis. It is categorised as a Read tool in the Phoenixd MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Phoenixd MCP Server MCP server in PolicyLayer and add a rule for decode-offer: 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 Phoenixd MCP Server. Nothing to install.
decode-offer 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-offer 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-offer. 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-offer is provided by the Phoenixd MCP Server MCP server (sharmaz/phoenixd-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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