composable-move-functions

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Overview

Sui transactions can chain multiple function calls in a single Programmable Transaction Block (PTB). Functions that transfer objects internally instead of returning them break this composability. This skill covers how to design functions that work well in PTBs.

All patterns sourced from https://move-book.com/guides/code-quality-checklist

No public entry

Functions should be either public (composable, can be called from other modules and PTBs) or entry (transaction endpoint only). Never use public entry together.

// WRONG — public entry is redundant and limits composability
public entry fun do_something() { }