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54. Pinocchio + Shank: Generating IDLs

Adding Shank annotations to generate Anchor-compatible IDLs.

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Because Pinocchio lacks Anchor macros, developers add `#[derive(ShankInstruction, ShankAccount)]` attributes to generate standard IDLs for client generation.

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1. Read the explanation once end to end, skipping the code.
2. Re-read the code snippets and say out loud what each line does.
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Check your understanding

1. How do you generate an IDL from a Pinocchio program?
Using Shank or Codama annotations on instruction enums and account structsAnchor generates it automaticallyIDLs cannot be created for PinocchioBy writing JSON manually only
2. What is Shank in the Solana ecosystem?
A tool created by Metaplex to extract IDLs from native and lightweight Rust programsA validator clientA consensus engineA DEX aggregator

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