Calldata Encoder & Decoder

Decodes raw calldata against an ABI you supply or a built-in list of common signatures, naming each argument and its type. Nested calldata is decoded a level down, which is where the real action hides in multicalls and account-abstraction operations — a single outer call can wrap a dozen inner ones and only the wrapper is visible otherwise. When nothing matches it falls back to showing the raw 32-byte words with any that look like addresses or plausible numbers annotated. It also flags a payload that is not a multiple of 32 bytes, which means the calldata is truncated rather than merely unrecognised. Encoding coerces every argument to its declared type first, since a value left as a string produces calldata that looks right and is not.