import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"
export function registerUtilityPrompts(server: McpServer) {
server.prompt(
"decode_calldata",
"Help decode transaction calldata",
{
calldata: {
description: "The transaction calldata to decode",
required: true
}
},
({ calldata }) => ({
messages: [
{
role: "user" as const,
content: {
type: "text" as const,
text: `Help me decode this transaction calldata: ${calldata}
Steps to analyze:
1. Use get_function_selector to identify the function (first 4 bytes)
2. Look up common function selectors
3. Use abi_decode to decode the parameters
Provide:
- Function signature (if identifiable)
- Decoded parameters
- Explanation of what the transaction does`
}
}
]
})
)
server.prompt(
"analyze_storage_layout",
"Analyze contract storage layout",
{
address: {
description: "Contract address to analyze",
required: true
},
network: {
description: "Network to use",
required: false
}
},
({ address, network = "eth" }) => ({
messages: [
{
role: "user" as const,
content: {
type: "text" as const,
text: `Analyze the storage layout of contract ${address} on ${network}.
Use get_storage_at to read various slots and try to identify:
1. Owner/admin address (often slot 0)
2. Important state variables
3. Mapping storage patterns
Read common slots: 0x0, 0x1, 0x2, etc. and analyze the values.`
}
}
]
})
)
}
